./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 356d4a12962a540140ebba68874ce6eceea0c4ac73970f06eb56d210b432d6ba --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:12:42,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:12:42,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:12:43,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:12:43,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:12:43,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:12:43,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:12:43,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:12:43,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:12:43,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:12:43,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:12:43,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:12:43,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:12:43,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:12:43,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:12:43,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:12:43,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:12:43,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:12:43,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:12:43,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:12:43,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:12:43,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:12:43,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:12:43,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:12:43,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:12:43,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:12:43,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:12:43,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:12:43,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:12:43,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:12:43,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:12:43,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:12:43,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:12:43,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:12:43,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:12:43,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:12:43,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:12:43,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:12:43,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:12:43,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:12:43,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:12:43,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:12:43,119 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:12:43,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:12:43,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:12:43,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:12:43,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:12:43,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:12:43,122 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:12:43,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:12:43,123 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:12:43,123 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:12:43,123 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:12:43,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:12:43,124 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:12:43,124 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:12:43,125 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:12:43,125 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:12:43,125 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:12:43,126 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:12:43,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:12:43,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:12:43,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:12:43,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:12:43,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:12:43,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:12:43,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:12:43,131 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:12:43,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:12:43,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:12:43,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:12:43,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:12:43,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:12:43,133 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:12:43,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:12:43,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:12:43,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:12:43,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:12:43,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:12:43,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:12:43,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 356d4a12962a540140ebba68874ce6eceea0c4ac73970f06eb56d210b432d6ba [2022-11-03 02:12:43,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:12:43,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:12:43,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:12:43,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:12:43,506 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:12:43,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c [2022-11-03 02:12:43,597 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/data/6f3f7c4f2/25b507e3ffb847479203e4123055408e/FLAGd821937b2 [2022-11-03 02:12:44,590 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:12:44,597 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c [2022-11-03 02:12:44,627 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/data/6f3f7c4f2/25b507e3ffb847479203e4123055408e/FLAGd821937b2 [2022-11-03 02:12:44,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/data/6f3f7c4f2/25b507e3ffb847479203e4123055408e [2022-11-03 02:12:44,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:12:44,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:12:44,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:12:44,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:12:44,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:12:44,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:12:44" (1/1) ... [2022-11-03 02:12:44,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8eb4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:44, skipping insertion in model container [2022-11-03 02:12:44,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:12:44" (1/1) ... [2022-11-03 02:12:44,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:12:44,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:12:45,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c[1014,1027] [2022-11-03 02:12:45,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:12:45,575 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:12:45,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c[1014,1027] [2022-11-03 02:12:45,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:12:45,868 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:12:45,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45 WrapperNode [2022-11-03 02:12:45,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:12:45,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:12:45,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:12:45,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:12:45,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (1/1) ... [2022-11-03 02:12:45,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (1/1) ... [2022-11-03 02:12:46,228 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2352 [2022-11-03 02:12:46,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:12:46,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:12:46,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:12:46,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:12:46,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (1/1) ... [2022-11-03 02:12:46,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (1/1) ... [2022-11-03 02:12:46,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (1/1) ... [2022-11-03 02:12:46,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (1/1) ... [2022-11-03 02:12:46,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (1/1) ... [2022-11-03 02:12:46,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (1/1) ... [2022-11-03 02:12:46,500 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (1/1) ... [2022-11-03 02:12:46,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (1/1) ... [2022-11-03 02:12:46,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:12:46,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:12:46,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:12:46,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:12:46,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (1/1) ... [2022-11-03 02:12:46,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:12:46,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:12:46,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:12:46,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:12:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:12:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:12:47,329 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:12:47,332 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:12:53,546 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:13:06,358 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:13:06,359 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:13:06,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:06 BoogieIcfgContainer [2022-11-03 02:13:06,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:13:06,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:13:06,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:13:06,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:13:06,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:12:44" (1/3) ... [2022-11-03 02:13:06,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb51ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:13:06, skipping insertion in model container [2022-11-03 02:13:06,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:12:45" (2/3) ... [2022-11-03 02:13:06,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb51ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:13:06, skipping insertion in model container [2022-11-03 02:13:06,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:06" (3/3) ... [2022-11-03 02:13:06,377 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.hanoi.1.prop1-func-interl.c [2022-11-03 02:13:06,402 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:13:06,402 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:13:06,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:13:06,473 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5429aea2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:13:06,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:13:06,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:13:06,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:13:06,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:13:06,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:13:06,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:13:06,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:13:06,506 INFO L85 PathProgramCache]: Analyzing trace with hash 31856607, now seen corresponding path program 1 times [2022-11-03 02:13:06,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:13:06,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336081445] [2022-11-03 02:13:06,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:06,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:13:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:13:09,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:13:09,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:13:09,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336081445] [2022-11-03 02:13:09,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336081445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:13:09,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:13:09,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:13:09,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31118681] [2022-11-03 02:13:09,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:13:09,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:13:09,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:13:09,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:13:09,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:13:09,120 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:13:11,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:13:11,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:13:11,640 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2022-11-03 02:13:11,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:13:11,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-03 02:13:11,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:13:11,653 INFO L225 Difference]: With dead ends: 15 [2022-11-03 02:13:11,653 INFO L226 Difference]: Without dead ends: 9 [2022-11-03 02:13:11,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:13:11,661 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:13:11,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 02:13:11,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-03 02:13:11,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2022-11-03 02:13:11,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:13:11,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-11-03 02:13:11,698 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2022-11-03 02:13:11,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:13:11,699 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-11-03 02:13:11,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:13:11,700 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-11-03 02:13:11,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 02:13:11,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:13:11,701 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-03 02:13:11,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:13:11,702 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:13:11,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:13:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash -99530368, now seen corresponding path program 1 times [2022-11-03 02:13:11,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:13:11,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520065009] [2022-11-03 02:13:11,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:11,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:18:11,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:21:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:21:34,661 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:21:34,662 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:21:34,664 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:21:34,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:21:34,670 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 02:21:34,674 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:21:34,813 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 02:21:34,814 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 02:21:34,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:21:34 BoogieIcfgContainer [2022-11-03 02:21:34,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:21:34,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:21:34,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:21:34,876 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:21:34,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:06" (3/4) ... [2022-11-03 02:21:34,879 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 02:21:34,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:21:34,880 INFO L158 Benchmark]: Toolchain (without parser) took 530191.33ms. Allocated memory was 111.1MB in the beginning and 5.9GB in the end (delta: 5.8GB). Free memory was 69.9MB in the beginning and 5.2GB in the end (delta: -5.2GB). Peak memory consumption was 584.6MB. Max. memory is 16.1GB. [2022-11-03 02:21:34,881 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 111.1MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:21:34,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1176.47ms. Allocated memory was 111.1MB in the beginning and 144.7MB in the end (delta: 33.6MB). Free memory was 69.7MB in the beginning and 99.2MB in the end (delta: -29.5MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2022-11-03 02:21:34,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 359.08ms. Allocated memory is still 144.7MB. Free memory was 99.2MB in the beginning and 87.1MB in the end (delta: 12.2MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2022-11-03 02:21:34,883 INFO L158 Benchmark]: Boogie Preprocessor took 328.07ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 77.4MB in the end (delta: 9.6MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2022-11-03 02:21:34,884 INFO L158 Benchmark]: RCFGBuilder took 19803.94ms. Allocated memory was 144.7MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 76.9MB in the beginning and 3.4GB in the end (delta: -3.4GB). Peak memory consumption was 734.1MB. Max. memory is 16.1GB. [2022-11-03 02:21:34,884 INFO L158 Benchmark]: TraceAbstraction took 508509.36ms. Allocated memory was 3.6GB in the beginning and 5.9GB in the end (delta: 2.2GB). Free memory was 3.4GB in the beginning and 5.2GB in the end (delta: -1.8GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. [2022-11-03 02:21:34,885 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 5.9GB. Free memory is still 5.2GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:21:34,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 111.1MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1176.47ms. Allocated memory was 111.1MB in the beginning and 144.7MB in the end (delta: 33.6MB). Free memory was 69.7MB in the beginning and 99.2MB in the end (delta: -29.5MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 359.08ms. Allocated memory is still 144.7MB. Free memory was 99.2MB in the beginning and 87.1MB in the end (delta: 12.2MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 328.07ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 77.4MB in the end (delta: 9.6MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * RCFGBuilder took 19803.94ms. Allocated memory was 144.7MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 76.9MB in the beginning and 3.4GB in the end (delta: -3.4GB). Peak memory consumption was 734.1MB. Max. memory is 16.1GB. * TraceAbstraction took 508509.36ms. Allocated memory was 3.6GB in the beginning and 5.9GB in the end (delta: 2.2GB). Free memory was 3.4GB in the beginning and 5.2GB in the end (delta: -1.8GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 5.9GB. Free memory is still 5.2GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 224, overapproximation of bitwiseAnd at line 183, overapproximation of bitwiseComplement at line 204, overapproximation of bitwiseXOr at line 198. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_66 = 0; [L39] const SORT_2 var_81 = 8; [L40] const SORT_2 var_82 = 1; [L41] const SORT_2 var_87 = 100; [L42] const SORT_2 var_88 = 0; [L43] const SORT_2 var_89 = 9; [L44] const SORT_4 var_94 = 0; [L45] const SORT_3 var_95 = 0; [L46] const SORT_4 var_97 = 1; [L47] const SORT_4 var_102 = 2; [L48] const SORT_4 var_104 = 3; [L49] const SORT_4 var_106 = 4; [L50] const SORT_4 var_108 = 5; [L51] const SORT_4 var_110 = 6; [L52] const SORT_4 var_112 = 7; [L53] const SORT_2 var_171 = 7; [L54] const SORT_2 var_172 = 2; [L55] const SORT_2 var_186 = 6; [L56] const SORT_2 var_187 = 3; [L57] const SORT_2 var_201 = 5; [L58] const SORT_2 var_202 = 4; [L59] const SORT_4 var_258 = 8; [L61] SORT_1 input_92; [L62] SORT_1 input_122; [L63] SORT_1 input_147; [L64] SORT_1 input_149; [L65] SORT_1 input_279; [L66] SORT_1 input_281; [L68] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L69] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L75] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L76] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L77] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L78] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L79] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L80] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L81] SORT_2 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] SORT_2 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L83] SORT_2 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] SORT_2 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L85] SORT_2 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L86] SORT_2 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L87] SORT_2 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L88] SORT_2 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L89] SORT_2 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L90] SORT_2 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L91] SORT_2 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L92] SORT_2 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] SORT_2 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_2 init_7_arg_1 = var_5; [L107] state_6 = init_7_arg_1 [L108] SORT_2 init_9_arg_1 = var_5; [L109] state_8 = init_9_arg_1 [L110] SORT_2 init_11_arg_1 = var_5; [L111] state_10 = init_11_arg_1 [L112] SORT_2 init_13_arg_1 = var_5; [L113] state_12 = init_13_arg_1 [L114] SORT_2 init_15_arg_1 = var_5; [L115] state_14 = init_15_arg_1 [L116] SORT_2 init_17_arg_1 = var_5; [L117] state_16 = init_17_arg_1 [L118] SORT_2 init_19_arg_1 = var_5; [L119] state_18 = init_19_arg_1 [L120] SORT_2 init_21_arg_1 = var_5; [L121] state_20 = init_21_arg_1 [L122] SORT_2 init_23_arg_1 = var_5; [L123] state_22 = init_23_arg_1 [L124] SORT_2 init_25_arg_1 = var_5; [L125] state_24 = init_25_arg_1 [L126] SORT_2 init_27_arg_1 = var_5; [L127] state_26 = init_27_arg_1 [L128] SORT_2 init_29_arg_1 = var_5; [L129] state_28 = init_29_arg_1 [L130] SORT_2 init_31_arg_1 = var_5; [L131] state_30 = init_31_arg_1 [L132] SORT_2 init_33_arg_1 = var_5; [L133] state_32 = init_33_arg_1 [L134] SORT_2 init_35_arg_1 = var_5; [L135] state_34 = init_35_arg_1 [L136] SORT_2 init_37_arg_1 = var_5; [L137] state_36 = init_37_arg_1 [L138] SORT_2 init_39_arg_1 = var_5; [L139] state_38 = init_39_arg_1 [L140] SORT_2 init_41_arg_1 = var_5; [L141] state_40 = init_41_arg_1 [L142] SORT_2 init_43_arg_1 = var_5; [L143] state_42 = init_43_arg_1 [L144] SORT_2 init_45_arg_1 = var_5; [L145] state_44 = init_45_arg_1 [L146] SORT_2 init_47_arg_1 = var_5; [L147] state_46 = init_47_arg_1 [L148] SORT_2 init_49_arg_1 = var_5; [L149] state_48 = init_49_arg_1 [L150] SORT_2 init_51_arg_1 = var_5; [L151] state_50 = init_51_arg_1 [L152] SORT_2 init_53_arg_1 = var_5; [L153] state_52 = init_53_arg_1 [L154] SORT_2 init_55_arg_1 = var_5; [L155] state_54 = init_55_arg_1 [L156] SORT_2 init_57_arg_1 = var_5; [L157] state_56 = init_57_arg_1 [L158] SORT_2 init_59_arg_1 = var_5; [L159] state_58 = init_59_arg_1 [L160] SORT_2 init_61_arg_1 = var_5; [L161] state_60 = init_61_arg_1 [L162] SORT_2 init_63_arg_1 = var_5; [L163] state_62 = init_63_arg_1 [L164] SORT_2 init_65_arg_1 = var_5; [L165] state_64 = init_65_arg_1 [L166] SORT_1 init_68_arg_1 = var_66; [L167] state_67 = init_68_arg_1 [L168] SORT_1 init_70_arg_1 = var_66; [L169] state_69 = init_70_arg_1 [L170] SORT_1 init_72_arg_1 = var_66; [L171] state_71 = init_72_arg_1 [L172] SORT_1 init_74_arg_1 = var_66; [L173] state_73 = init_74_arg_1 [L174] SORT_1 init_76_arg_1 = var_66; [L175] state_75 = init_76_arg_1 [L176] SORT_1 init_78_arg_1 = var_66; [L177] state_77 = init_78_arg_1 [L178] SORT_1 init_80_arg_1 = var_66; [L179] state_79 = init_80_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_58=0, state_6=0, state_60=0, state_62=0, state_64=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, var_102=2, var_104=3, var_106=4, var_108=5, var_110=6, var_112=7, var_171=7, var_172=2, var_186=6, var_187=3, var_201=5, var_202=4, var_258=8, var_5=0, var_66=0, var_81=8, var_82=1, var_87=100, var_88=0, var_89=9, var_94=0, var_95=0, var_97=1] [L182] input_92 = __VERIFIER_nondet_uchar() [L183] input_92 = input_92 & mask_SORT_1 [L184] input_122 = __VERIFIER_nondet_uchar() [L185] input_122 = input_122 & mask_SORT_1 [L186] input_147 = __VERIFIER_nondet_uchar() [L187] input_147 = input_147 & mask_SORT_1 [L188] input_149 = __VERIFIER_nondet_uchar() [L189] input_149 = input_149 & mask_SORT_1 [L190] input_279 = __VERIFIER_nondet_uchar() [L191] input_279 = input_279 & mask_SORT_1 [L192] input_281 = __VERIFIER_nondet_uchar() [L193] input_281 = input_281 & mask_SORT_1 [L196] SORT_2 var_83_arg_0 = var_82; [L197] SORT_2 var_83_arg_1 = state_64; [L198] SORT_2 var_83 = var_83_arg_0 ^ var_83_arg_1; [L199] var_83 = var_83 & mask_SORT_2 [L200] SORT_2 var_84_arg_0 = var_81; [L201] SORT_2 var_84_arg_1 = var_83; [L202] SORT_1 var_84 = var_84_arg_0 == var_84_arg_1; [L203] SORT_1 var_85_arg_0 = var_84; [L204] SORT_1 var_85_arg_1 = ~state_79; [L205] var_85_arg_1 = var_85_arg_1 & mask_SORT_1 [L206] SORT_1 var_85 = var_85_arg_0 & var_85_arg_1; [L207] var_85 = var_85 & mask_SORT_1 [L208] SORT_1 bad_86_arg_0 = var_85; [L209] CALL __VERIFIER_assert(!(bad_86_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L209] RET __VERIFIER_assert(!(bad_86_arg_0)) [L211] SORT_2 var_90_arg_0 = var_89; [L212] SORT_2 var_90_arg_1 = state_24; [L213] SORT_2 var_90 = var_90_arg_0 ^ var_90_arg_1; [L214] var_90 = var_90 & mask_SORT_2 [L215] SORT_2 var_91_arg_0 = var_88; [L216] SORT_2 var_91_arg_1 = var_90; [L217] SORT_1 var_91 = var_91_arg_0 == var_91_arg_1; [L218] SORT_1 var_93_arg_0 = var_91; [L219] SORT_1 var_93_arg_1 = input_92; [L220] SORT_1 var_93 = var_93_arg_0 & var_93_arg_1; [L221] var_93 = var_93 & mask_SORT_1 [L222] SORT_3 var_96_arg_0 = var_95; [L223] SORT_2 var_96_arg_1 = var_83; [L224] SORT_4 var_96 = ((SORT_4)var_96_arg_0 << 8) | var_96_arg_1; [L225] SORT_4 var_98_arg_0 = var_96; [L226] SORT_4 var_98_arg_1 = var_97; [L227] SORT_4 var_98 = var_98_arg_0 - var_98_arg_1; [L228] var_98 = var_98 & mask_SORT_4 [L229] SORT_4 var_99_arg_0 = var_94; [L230] SORT_4 var_99_arg_1 = var_98; [L231] SORT_1 var_99 = var_99_arg_0 == var_99_arg_1; [L232] SORT_2 var_100_arg_0 = var_87; [L233] SORT_2 var_100_arg_1 = state_46; [L234] SORT_2 var_100 = var_100_arg_0 ^ var_100_arg_1; [L235] SORT_4 var_101_arg_0 = var_97; [L236] SORT_4 var_101_arg_1 = var_98; [L237] SORT_1 var_101 = var_101_arg_0 == var_101_arg_1; [L238] SORT_4 var_103_arg_0 = var_102; [L239] SORT_4 var_103_arg_1 = var_98; [L240] SORT_1 var_103 = var_103_arg_0 == var_103_arg_1; [L241] SORT_4 var_105_arg_0 = var_104; [L242] SORT_4 var_105_arg_1 = var_98; [L243] SORT_1 var_105 = var_105_arg_0 == var_105_arg_1; [L244] SORT_4 var_107_arg_0 = var_106; [L245] SORT_4 var_107_arg_1 = var_98; [L246] SORT_1 var_107 = var_107_arg_0 == var_107_arg_1; [L247] SORT_4 var_109_arg_0 = var_108; [L248] SORT_4 var_109_arg_1 = var_98; [L249] SORT_1 var_109 = var_109_arg_0 == var_109_arg_1; [L250] SORT_4 var_111_arg_0 = var_110; [L251] SORT_4 var_111_arg_1 = var_98; [L252] SORT_1 var_111 = var_111_arg_0 == var_111_arg_1; [L253] SORT_4 var_113_arg_0 = var_112; [L254] SORT_4 var_113_arg_1 = var_98; [L255] SORT_1 var_113 = var_113_arg_0 == var_113_arg_1; [L256] SORT_1 var_114_arg_0 = var_113; [L257] SORT_2 var_114_arg_1 = state_60; [L258] SORT_2 var_114_arg_2 = state_62; [L259] EXPR var_114_arg_0 ? var_114_arg_1 : var_114_arg_2 [L259] SORT_2 var_114 = var_114_arg_0 ? var_114_arg_1 : var_114_arg_2; [L260] SORT_1 var_115_arg_0 = var_111; [L261] SORT_2 var_115_arg_1 = state_58; [L262] SORT_2 var_115_arg_2 = var_114; [L263] EXPR var_115_arg_0 ? var_115_arg_1 : var_115_arg_2 [L263] SORT_2 var_115 = var_115_arg_0 ? var_115_arg_1 : var_115_arg_2; [L264] SORT_1 var_116_arg_0 = var_109; [L265] SORT_2 var_116_arg_1 = state_56; [L266] SORT_2 var_116_arg_2 = var_115; [L267] EXPR var_116_arg_0 ? var_116_arg_1 : var_116_arg_2 [L267] SORT_2 var_116 = var_116_arg_0 ? var_116_arg_1 : var_116_arg_2; [L268] SORT_1 var_117_arg_0 = var_107; [L269] SORT_2 var_117_arg_1 = state_54; [L270] SORT_2 var_117_arg_2 = var_116; [L271] EXPR var_117_arg_0 ? var_117_arg_1 : var_117_arg_2 [L271] SORT_2 var_117 = var_117_arg_0 ? var_117_arg_1 : var_117_arg_2; [L272] SORT_1 var_118_arg_0 = var_105; [L273] SORT_2 var_118_arg_1 = state_52; [L274] SORT_2 var_118_arg_2 = var_117; [L275] EXPR var_118_arg_0 ? var_118_arg_1 : var_118_arg_2 [L275] SORT_2 var_118 = var_118_arg_0 ? var_118_arg_1 : var_118_arg_2; [L276] SORT_1 var_119_arg_0 = var_103; [L277] SORT_2 var_119_arg_1 = state_50; [L278] SORT_2 var_119_arg_2 = var_118; [L279] EXPR var_119_arg_0 ? var_119_arg_1 : var_119_arg_2 [L279] SORT_2 var_119 = var_119_arg_0 ? var_119_arg_1 : var_119_arg_2; [L280] SORT_1 var_120_arg_0 = var_101; [L281] SORT_2 var_120_arg_1 = state_48; [L282] SORT_2 var_120_arg_2 = var_119; [L283] EXPR var_120_arg_0 ? var_120_arg_1 : var_120_arg_2 [L283] SORT_2 var_120 = var_120_arg_0 ? var_120_arg_1 : var_120_arg_2; [L284] SORT_1 var_121_arg_0 = var_99; [L285] SORT_2 var_121_arg_1 = var_100; [L286] SORT_2 var_121_arg_2 = var_120; [L287] EXPR var_121_arg_0 ? var_121_arg_1 : var_121_arg_2 [L287] SORT_2 var_121 = var_121_arg_0 ? var_121_arg_1 : var_121_arg_2; [L288] var_121 = var_121 & mask_SORT_2 [L289] SORT_1 var_123_arg_0 = input_122; [L290] SORT_1 var_123_arg_1 = var_91; [L291] SORT_1 var_123 = var_123_arg_0 & var_123_arg_1; [L292] var_123 = var_123 & mask_SORT_1 [L293] SORT_2 var_124_arg_0 = var_82; [L294] SORT_2 var_124_arg_1 = state_44; [L295] SORT_2 var_124 = var_124_arg_0 ^ var_124_arg_1; [L296] var_124 = var_124 & mask_SORT_2 [L297] SORT_3 var_125_arg_0 = var_95; [L298] SORT_2 var_125_arg_1 = var_124; [L299] SORT_4 var_125 = ((SORT_4)var_125_arg_0 << 8) | var_125_arg_1; [L300] SORT_4 var_126_arg_0 = var_125; [L301] SORT_4 var_126_arg_1 = var_97; [L302] SORT_4 var_126 = var_126_arg_0 - var_126_arg_1; [L303] var_126 = var_126 & mask_SORT_4 [L304] SORT_4 var_127_arg_0 = var_94; [L305] SORT_4 var_127_arg_1 = var_126; [L306] SORT_1 var_127 = var_127_arg_0 == var_127_arg_1; [L307] SORT_2 var_128_arg_0 = var_87; [L308] SORT_2 var_128_arg_1 = state_26; [L309] SORT_2 var_128 = var_128_arg_0 ^ var_128_arg_1; [L310] SORT_4 var_129_arg_0 = var_97; [L311] SORT_4 var_129_arg_1 = var_126; [L312] SORT_1 var_129 = var_129_arg_0 == var_129_arg_1; [L313] SORT_4 var_130_arg_0 = var_102; [L314] SORT_4 var_130_arg_1 = var_126; [L315] SORT_1 var_130 = var_130_arg_0 == var_130_arg_1; [L316] SORT_4 var_131_arg_0 = var_104; [L317] SORT_4 var_131_arg_1 = var_126; [L318] SORT_1 var_131 = var_131_arg_0 == var_131_arg_1; [L319] SORT_4 var_132_arg_0 = var_106; [L320] SORT_4 var_132_arg_1 = var_126; [L321] SORT_1 var_132 = var_132_arg_0 == var_132_arg_1; [L322] SORT_4 var_133_arg_0 = var_108; [L323] SORT_4 var_133_arg_1 = var_126; [L324] SORT_1 var_133 = var_133_arg_0 == var_133_arg_1; [L325] SORT_4 var_134_arg_0 = var_110; [L326] SORT_4 var_134_arg_1 = var_126; [L327] SORT_1 var_134 = var_134_arg_0 == var_134_arg_1; [L328] SORT_4 var_135_arg_0 = var_112; [L329] SORT_4 var_135_arg_1 = var_126; [L330] SORT_1 var_135 = var_135_arg_0 == var_135_arg_1; [L331] SORT_1 var_136_arg_0 = var_135; [L332] SORT_2 var_136_arg_1 = state_40; [L333] SORT_2 var_136_arg_2 = state_42; [L334] EXPR var_136_arg_0 ? var_136_arg_1 : var_136_arg_2 [L334] SORT_2 var_136 = var_136_arg_0 ? var_136_arg_1 : var_136_arg_2; [L335] SORT_1 var_137_arg_0 = var_134; [L336] SORT_2 var_137_arg_1 = state_38; [L337] SORT_2 var_137_arg_2 = var_136; [L338] EXPR var_137_arg_0 ? var_137_arg_1 : var_137_arg_2 [L338] SORT_2 var_137 = var_137_arg_0 ? var_137_arg_1 : var_137_arg_2; [L339] SORT_1 var_138_arg_0 = var_133; [L340] SORT_2 var_138_arg_1 = state_36; [L341] SORT_2 var_138_arg_2 = var_137; [L342] EXPR var_138_arg_0 ? var_138_arg_1 : var_138_arg_2 [L342] SORT_2 var_138 = var_138_arg_0 ? var_138_arg_1 : var_138_arg_2; [L343] SORT_1 var_139_arg_0 = var_132; [L344] SORT_2 var_139_arg_1 = state_34; [L345] SORT_2 var_139_arg_2 = var_138; [L346] EXPR var_139_arg_0 ? var_139_arg_1 : var_139_arg_2 [L346] SORT_2 var_139 = var_139_arg_0 ? var_139_arg_1 : var_139_arg_2; [L347] SORT_1 var_140_arg_0 = var_131; [L348] SORT_2 var_140_arg_1 = state_32; [L349] SORT_2 var_140_arg_2 = var_139; [L350] EXPR var_140_arg_0 ? var_140_arg_1 : var_140_arg_2 [L350] SORT_2 var_140 = var_140_arg_0 ? var_140_arg_1 : var_140_arg_2; [L351] SORT_1 var_141_arg_0 = var_130; [L352] SORT_2 var_141_arg_1 = state_30; [L353] SORT_2 var_141_arg_2 = var_140; [L354] EXPR var_141_arg_0 ? var_141_arg_1 : var_141_arg_2 [L354] SORT_2 var_141 = var_141_arg_0 ? var_141_arg_1 : var_141_arg_2; [L355] SORT_1 var_142_arg_0 = var_129; [L356] SORT_2 var_142_arg_1 = state_28; [L357] SORT_2 var_142_arg_2 = var_141; [L358] EXPR var_142_arg_0 ? var_142_arg_1 : var_142_arg_2 [L358] SORT_2 var_142 = var_142_arg_0 ? var_142_arg_1 : var_142_arg_2; [L359] SORT_1 var_143_arg_0 = var_127; [L360] SORT_2 var_143_arg_1 = var_128; [L361] SORT_2 var_143_arg_2 = var_142; [L362] EXPR var_143_arg_0 ? var_143_arg_1 : var_143_arg_2 [L362] SORT_2 var_143 = var_143_arg_0 ? var_143_arg_1 : var_143_arg_2; [L363] var_143 = var_143 & mask_SORT_2 [L364] SORT_3 var_144_arg_0 = var_95; [L365] SORT_2 var_144_arg_1 = var_90; [L366] SORT_4 var_144 = ((SORT_4)var_144_arg_0 << 8) | var_144_arg_1; [L367] SORT_4 var_145_arg_0 = var_144; [L368] SORT_4 var_145_arg_1 = var_97; [L369] SORT_4 var_145 = var_145_arg_0 - var_145_arg_1; [L370] var_145 = var_145 & mask_SORT_4 [L371] SORT_4 var_146_arg_0 = var_94; [L372] SORT_4 var_146_arg_1 = var_145; [L373] SORT_1 var_146 = var_146_arg_0 == var_146_arg_1; [L374] SORT_1 var_148_arg_0 = var_146; [L375] SORT_1 var_148_arg_1 = input_147; [L376] SORT_1 var_148 = var_148_arg_0 & var_148_arg_1; [L377] var_148 = var_148 & mask_SORT_1 [L378] SORT_1 var_150_arg_0 = input_149; [L379] SORT_1 var_150_arg_1 = var_146; [L380] SORT_1 var_150 = var_150_arg_0 & var_150_arg_1; [L381] var_150 = var_150 & mask_SORT_1 [L382] SORT_2 var_151_arg_0 = var_87; [L383] SORT_2 var_151_arg_1 = state_6; [L384] SORT_2 var_151 = var_151_arg_0 ^ var_151_arg_1; [L385] SORT_1 var_152_arg_0 = var_150; [L386] SORT_2 var_152_arg_1 = var_88; [L387] SORT_2 var_152_arg_2 = var_151; [L388] EXPR var_152_arg_0 ? var_152_arg_1 : var_152_arg_2 [L388] SORT_2 var_152 = var_152_arg_0 ? var_152_arg_1 : var_152_arg_2; [L389] SORT_1 var_153_arg_0 = var_148; [L390] SORT_2 var_153_arg_1 = var_88; [L391] SORT_2 var_153_arg_2 = var_152; [L392] EXPR var_153_arg_0 ? var_153_arg_1 : var_153_arg_2 [L392] SORT_2 var_153 = var_153_arg_0 ? var_153_arg_1 : var_153_arg_2; [L393] SORT_1 var_154_arg_0 = var_123; [L394] SORT_2 var_154_arg_1 = var_143; [L395] SORT_2 var_154_arg_2 = var_153; [L396] EXPR var_154_arg_0 ? var_154_arg_1 : var_154_arg_2 [L396] SORT_2 var_154 = var_154_arg_0 ? var_154_arg_1 : var_154_arg_2; [L397] SORT_1 var_155_arg_0 = var_93; [L398] SORT_2 var_155_arg_1 = var_121; [L399] SORT_2 var_155_arg_2 = var_154; [L400] EXPR var_155_arg_0 ? var_155_arg_1 : var_155_arg_2 [L400] SORT_2 var_155 = var_155_arg_0 ? var_155_arg_1 : var_155_arg_2; [L401] SORT_2 var_156_arg_0 = var_87; [L402] SORT_2 var_156_arg_1 = var_155; [L403] SORT_2 var_156 = var_156_arg_0 ^ var_156_arg_1; [L404] SORT_2 next_157_arg_1 = var_156; [L405] SORT_2 var_158_arg_0 = var_82; [L406] SORT_2 var_158_arg_1 = var_90; [L407] SORT_1 var_158 = var_158_arg_0 == var_158_arg_1; [L408] SORT_1 var_159_arg_0 = var_158; [L409] SORT_1 var_159_arg_1 = input_92; [L410] SORT_1 var_159 = var_159_arg_0 & var_159_arg_1; [L411] var_159 = var_159 & mask_SORT_1 [L412] SORT_1 var_160_arg_0 = input_122; [L413] SORT_1 var_160_arg_1 = var_158; [L414] SORT_1 var_160 = var_160_arg_0 & var_160_arg_1; [L415] var_160 = var_160 & mask_SORT_1 [L416] SORT_4 var_161_arg_0 = var_97; [L417] SORT_4 var_161_arg_1 = var_145; [L418] SORT_1 var_161 = var_161_arg_0 == var_161_arg_1; [L419] SORT_1 var_162_arg_0 = var_161; [L420] SORT_1 var_162_arg_1 = input_147; [L421] SORT_1 var_162 = var_162_arg_0 & var_162_arg_1; [L422] var_162 = var_162 & mask_SORT_1 [L423] SORT_1 var_163_arg_0 = input_149; [L424] SORT_1 var_163_arg_1 = var_161; [L425] SORT_1 var_163 = var_163_arg_0 & var_163_arg_1; [L426] var_163 = var_163 & mask_SORT_1 [L427] SORT_2 var_164_arg_0 = var_81; [L428] SORT_2 var_164_arg_1 = state_8; [L429] SORT_2 var_164 = var_164_arg_0 ^ var_164_arg_1; [L430] SORT_1 var_165_arg_0 = var_163; [L431] SORT_2 var_165_arg_1 = var_88; [L432] SORT_2 var_165_arg_2 = var_164; [L433] EXPR var_165_arg_0 ? var_165_arg_1 : var_165_arg_2 [L433] SORT_2 var_165 = var_165_arg_0 ? var_165_arg_1 : var_165_arg_2; [L434] SORT_1 var_166_arg_0 = var_162; [L435] SORT_2 var_166_arg_1 = var_88; [L436] SORT_2 var_166_arg_2 = var_165; [L437] EXPR var_166_arg_0 ? var_166_arg_1 : var_166_arg_2 [L437] SORT_2 var_166 = var_166_arg_0 ? var_166_arg_1 : var_166_arg_2; [L438] SORT_1 var_167_arg_0 = var_160; [L439] SORT_2 var_167_arg_1 = var_143; [L440] SORT_2 var_167_arg_2 = var_166; [L441] EXPR var_167_arg_0 ? var_167_arg_1 : var_167_arg_2 [L441] SORT_2 var_167 = var_167_arg_0 ? var_167_arg_1 : var_167_arg_2; [L442] SORT_1 var_168_arg_0 = var_159; [L443] SORT_2 var_168_arg_1 = var_121; [L444] SORT_2 var_168_arg_2 = var_167; [L445] EXPR var_168_arg_0 ? var_168_arg_1 : var_168_arg_2 [L445] SORT_2 var_168 = var_168_arg_0 ? var_168_arg_1 : var_168_arg_2; [L446] SORT_2 var_169_arg_0 = var_81; [L447] SORT_2 var_169_arg_1 = var_168; [L448] SORT_2 var_169 = var_169_arg_0 ^ var_169_arg_1; [L449] SORT_2 next_170_arg_1 = var_169; [L450] SORT_2 var_173_arg_0 = var_172; [L451] SORT_2 var_173_arg_1 = var_90; [L452] SORT_1 var_173 = var_173_arg_0 == var_173_arg_1; [L453] SORT_1 var_174_arg_0 = var_173; [L454] SORT_1 var_174_arg_1 = input_92; [L455] SORT_1 var_174 = var_174_arg_0 & var_174_arg_1; [L456] var_174 = var_174 & mask_SORT_1 [L457] SORT_1 var_175_arg_0 = input_122; [L458] SORT_1 var_175_arg_1 = var_173; [L459] SORT_1 var_175 = var_175_arg_0 & var_175_arg_1; [L460] var_175 = var_175 & mask_SORT_1 [L461] SORT_4 var_176_arg_0 = var_102; [L462] SORT_4 var_176_arg_1 = var_145; [L463] SORT_1 var_176 = var_176_arg_0 == var_176_arg_1; [L464] SORT_1 var_177_arg_0 = var_176; [L465] SORT_1 var_177_arg_1 = input_147; [L466] SORT_1 var_177 = var_177_arg_0 & var_177_arg_1; [L467] var_177 = var_177 & mask_SORT_1 [L468] SORT_1 var_178_arg_0 = input_149; [L469] SORT_1 var_178_arg_1 = var_176; [L470] SORT_1 var_178 = var_178_arg_0 & var_178_arg_1; [L471] var_178 = var_178 & mask_SORT_1 [L472] SORT_2 var_179_arg_0 = var_171; [L473] SORT_2 var_179_arg_1 = state_10; [L474] SORT_2 var_179 = var_179_arg_0 ^ var_179_arg_1; [L475] SORT_1 var_180_arg_0 = var_178; [L476] SORT_2 var_180_arg_1 = var_88; [L477] SORT_2 var_180_arg_2 = var_179; [L478] EXPR var_180_arg_0 ? var_180_arg_1 : var_180_arg_2 [L478] SORT_2 var_180 = var_180_arg_0 ? var_180_arg_1 : var_180_arg_2; [L479] SORT_1 var_181_arg_0 = var_177; [L480] SORT_2 var_181_arg_1 = var_88; [L481] SORT_2 var_181_arg_2 = var_180; [L482] EXPR var_181_arg_0 ? var_181_arg_1 : var_181_arg_2 [L482] SORT_2 var_181 = var_181_arg_0 ? var_181_arg_1 : var_181_arg_2; [L483] SORT_1 var_182_arg_0 = var_175; [L484] SORT_2 var_182_arg_1 = var_143; [L485] SORT_2 var_182_arg_2 = var_181; [L486] EXPR var_182_arg_0 ? var_182_arg_1 : var_182_arg_2 [L486] SORT_2 var_182 = var_182_arg_0 ? var_182_arg_1 : var_182_arg_2; [L487] SORT_1 var_183_arg_0 = var_174; [L488] SORT_2 var_183_arg_1 = var_121; [L489] SORT_2 var_183_arg_2 = var_182; [L490] EXPR var_183_arg_0 ? var_183_arg_1 : var_183_arg_2 [L490] SORT_2 var_183 = var_183_arg_0 ? var_183_arg_1 : var_183_arg_2; [L491] SORT_2 var_184_arg_0 = var_171; [L492] SORT_2 var_184_arg_1 = var_183; [L493] SORT_2 var_184 = var_184_arg_0 ^ var_184_arg_1; [L494] SORT_2 next_185_arg_1 = var_184; [L495] SORT_2 var_188_arg_0 = var_187; [L496] SORT_2 var_188_arg_1 = var_90; [L497] SORT_1 var_188 = var_188_arg_0 == var_188_arg_1; [L498] SORT_1 var_189_arg_0 = var_188; [L499] SORT_1 var_189_arg_1 = input_92; [L500] SORT_1 var_189 = var_189_arg_0 & var_189_arg_1; [L501] var_189 = var_189 & mask_SORT_1 [L502] SORT_1 var_190_arg_0 = input_122; [L503] SORT_1 var_190_arg_1 = var_188; [L504] SORT_1 var_190 = var_190_arg_0 & var_190_arg_1; [L505] var_190 = var_190 & mask_SORT_1 [L506] SORT_4 var_191_arg_0 = var_104; [L507] SORT_4 var_191_arg_1 = var_145; [L508] SORT_1 var_191 = var_191_arg_0 == var_191_arg_1; [L509] SORT_1 var_192_arg_0 = var_191; [L510] SORT_1 var_192_arg_1 = input_147; [L511] SORT_1 var_192 = var_192_arg_0 & var_192_arg_1; [L512] var_192 = var_192 & mask_SORT_1 [L513] SORT_1 var_193_arg_0 = input_149; [L514] SORT_1 var_193_arg_1 = var_191; [L515] SORT_1 var_193 = var_193_arg_0 & var_193_arg_1; [L516] var_193 = var_193 & mask_SORT_1 [L517] SORT_2 var_194_arg_0 = var_186; [L518] SORT_2 var_194_arg_1 = state_12; [L519] SORT_2 var_194 = var_194_arg_0 ^ var_194_arg_1; [L520] SORT_1 var_195_arg_0 = var_193; [L521] SORT_2 var_195_arg_1 = var_88; [L522] SORT_2 var_195_arg_2 = var_194; [L523] EXPR var_195_arg_0 ? var_195_arg_1 : var_195_arg_2 [L523] SORT_2 var_195 = var_195_arg_0 ? var_195_arg_1 : var_195_arg_2; [L524] SORT_1 var_196_arg_0 = var_192; [L525] SORT_2 var_196_arg_1 = var_88; [L526] SORT_2 var_196_arg_2 = var_195; [L527] EXPR var_196_arg_0 ? var_196_arg_1 : var_196_arg_2 [L527] SORT_2 var_196 = var_196_arg_0 ? var_196_arg_1 : var_196_arg_2; [L528] SORT_1 var_197_arg_0 = var_190; [L529] SORT_2 var_197_arg_1 = var_143; [L530] SORT_2 var_197_arg_2 = var_196; [L531] EXPR var_197_arg_0 ? var_197_arg_1 : var_197_arg_2 [L531] SORT_2 var_197 = var_197_arg_0 ? var_197_arg_1 : var_197_arg_2; [L532] SORT_1 var_198_arg_0 = var_189; [L533] SORT_2 var_198_arg_1 = var_121; [L534] SORT_2 var_198_arg_2 = var_197; [L535] EXPR var_198_arg_0 ? var_198_arg_1 : var_198_arg_2 [L535] SORT_2 var_198 = var_198_arg_0 ? var_198_arg_1 : var_198_arg_2; [L536] SORT_2 var_199_arg_0 = var_186; [L537] SORT_2 var_199_arg_1 = var_198; [L538] SORT_2 var_199 = var_199_arg_0 ^ var_199_arg_1; [L539] SORT_2 next_200_arg_1 = var_199; [L540] SORT_2 var_203_arg_0 = var_202; [L541] SORT_2 var_203_arg_1 = var_90; [L542] SORT_1 var_203 = var_203_arg_0 == var_203_arg_1; [L543] SORT_1 var_204_arg_0 = var_203; [L544] SORT_1 var_204_arg_1 = input_92; [L545] SORT_1 var_204 = var_204_arg_0 & var_204_arg_1; [L546] var_204 = var_204 & mask_SORT_1 [L547] SORT_1 var_205_arg_0 = input_122; [L548] SORT_1 var_205_arg_1 = var_203; [L549] SORT_1 var_205 = var_205_arg_0 & var_205_arg_1; [L550] var_205 = var_205 & mask_SORT_1 [L551] SORT_4 var_206_arg_0 = var_106; [L552] SORT_4 var_206_arg_1 = var_145; [L553] SORT_1 var_206 = var_206_arg_0 == var_206_arg_1; [L554] SORT_1 var_207_arg_0 = var_206; [L555] SORT_1 var_207_arg_1 = input_147; [L556] SORT_1 var_207 = var_207_arg_0 & var_207_arg_1; [L557] var_207 = var_207 & mask_SORT_1 [L558] SORT_1 var_208_arg_0 = input_149; [L559] SORT_1 var_208_arg_1 = var_206; [L560] SORT_1 var_208 = var_208_arg_0 & var_208_arg_1; [L561] var_208 = var_208 & mask_SORT_1 [L562] SORT_2 var_209_arg_0 = var_201; [L563] SORT_2 var_209_arg_1 = state_14; [L564] SORT_2 var_209 = var_209_arg_0 ^ var_209_arg_1; [L565] SORT_1 var_210_arg_0 = var_208; [L566] SORT_2 var_210_arg_1 = var_88; [L567] SORT_2 var_210_arg_2 = var_209; [L568] EXPR var_210_arg_0 ? var_210_arg_1 : var_210_arg_2 [L568] SORT_2 var_210 = var_210_arg_0 ? var_210_arg_1 : var_210_arg_2; [L569] SORT_1 var_211_arg_0 = var_207; [L570] SORT_2 var_211_arg_1 = var_88; [L571] SORT_2 var_211_arg_2 = var_210; [L572] EXPR var_211_arg_0 ? var_211_arg_1 : var_211_arg_2 [L572] SORT_2 var_211 = var_211_arg_0 ? var_211_arg_1 : var_211_arg_2; [L573] SORT_1 var_212_arg_0 = var_205; [L574] SORT_2 var_212_arg_1 = var_143; [L575] SORT_2 var_212_arg_2 = var_211; [L576] EXPR var_212_arg_0 ? var_212_arg_1 : var_212_arg_2 [L576] SORT_2 var_212 = var_212_arg_0 ? var_212_arg_1 : var_212_arg_2; [L577] SORT_1 var_213_arg_0 = var_204; [L578] SORT_2 var_213_arg_1 = var_121; [L579] SORT_2 var_213_arg_2 = var_212; [L580] EXPR var_213_arg_0 ? var_213_arg_1 : var_213_arg_2 [L580] SORT_2 var_213 = var_213_arg_0 ? var_213_arg_1 : var_213_arg_2; [L581] SORT_2 var_214_arg_0 = var_201; [L582] SORT_2 var_214_arg_1 = var_213; [L583] SORT_2 var_214 = var_214_arg_0 ^ var_214_arg_1; [L584] SORT_2 next_215_arg_1 = var_214; [L585] SORT_2 var_216_arg_0 = var_201; [L586] SORT_2 var_216_arg_1 = var_90; [L587] SORT_1 var_216 = var_216_arg_0 == var_216_arg_1; [L588] SORT_1 var_217_arg_0 = var_216; [L589] SORT_1 var_217_arg_1 = input_92; [L590] SORT_1 var_217 = var_217_arg_0 & var_217_arg_1; [L591] var_217 = var_217 & mask_SORT_1 [L592] SORT_1 var_218_arg_0 = input_122; [L593] SORT_1 var_218_arg_1 = var_216; [L594] SORT_1 var_218 = var_218_arg_0 & var_218_arg_1; [L595] var_218 = var_218 & mask_SORT_1 [L596] SORT_4 var_219_arg_0 = var_108; [L597] SORT_4 var_219_arg_1 = var_145; [L598] SORT_1 var_219 = var_219_arg_0 == var_219_arg_1; [L599] SORT_1 var_220_arg_0 = var_219; [L600] SORT_1 var_220_arg_1 = input_147; [L601] SORT_1 var_220 = var_220_arg_0 & var_220_arg_1; [L602] var_220 = var_220 & mask_SORT_1 [L603] SORT_1 var_221_arg_0 = input_149; [L604] SORT_1 var_221_arg_1 = var_219; [L605] SORT_1 var_221 = var_221_arg_0 & var_221_arg_1; [L606] var_221 = var_221 & mask_SORT_1 [L607] SORT_2 var_222_arg_0 = var_202; [L608] SORT_2 var_222_arg_1 = state_16; [L609] SORT_2 var_222 = var_222_arg_0 ^ var_222_arg_1; [L610] SORT_1 var_223_arg_0 = var_221; [L611] SORT_2 var_223_arg_1 = var_88; [L612] SORT_2 var_223_arg_2 = var_222; [L613] EXPR var_223_arg_0 ? var_223_arg_1 : var_223_arg_2 [L613] SORT_2 var_223 = var_223_arg_0 ? var_223_arg_1 : var_223_arg_2; [L614] SORT_1 var_224_arg_0 = var_220; [L615] SORT_2 var_224_arg_1 = var_88; [L616] SORT_2 var_224_arg_2 = var_223; [L617] EXPR var_224_arg_0 ? var_224_arg_1 : var_224_arg_2 [L617] SORT_2 var_224 = var_224_arg_0 ? var_224_arg_1 : var_224_arg_2; [L618] SORT_1 var_225_arg_0 = var_218; [L619] SORT_2 var_225_arg_1 = var_143; [L620] SORT_2 var_225_arg_2 = var_224; [L621] EXPR var_225_arg_0 ? var_225_arg_1 : var_225_arg_2 [L621] SORT_2 var_225 = var_225_arg_0 ? var_225_arg_1 : var_225_arg_2; [L622] SORT_1 var_226_arg_0 = var_217; [L623] SORT_2 var_226_arg_1 = var_121; [L624] SORT_2 var_226_arg_2 = var_225; [L625] EXPR var_226_arg_0 ? var_226_arg_1 : var_226_arg_2 [L625] SORT_2 var_226 = var_226_arg_0 ? var_226_arg_1 : var_226_arg_2; [L626] SORT_2 var_227_arg_0 = var_202; [L627] SORT_2 var_227_arg_1 = var_226; [L628] SORT_2 var_227 = var_227_arg_0 ^ var_227_arg_1; [L629] SORT_2 next_228_arg_1 = var_227; [L630] SORT_2 var_229_arg_0 = var_186; [L631] SORT_2 var_229_arg_1 = var_90; [L632] SORT_1 var_229 = var_229_arg_0 == var_229_arg_1; [L633] SORT_1 var_230_arg_0 = var_229; [L634] SORT_1 var_230_arg_1 = input_92; [L635] SORT_1 var_230 = var_230_arg_0 & var_230_arg_1; [L636] var_230 = var_230 & mask_SORT_1 [L637] SORT_1 var_231_arg_0 = input_122; [L638] SORT_1 var_231_arg_1 = var_229; [L639] SORT_1 var_231 = var_231_arg_0 & var_231_arg_1; [L640] var_231 = var_231 & mask_SORT_1 [L641] SORT_4 var_232_arg_0 = var_110; [L642] SORT_4 var_232_arg_1 = var_145; [L643] SORT_1 var_232 = var_232_arg_0 == var_232_arg_1; [L644] SORT_1 var_233_arg_0 = var_232; [L645] SORT_1 var_233_arg_1 = input_147; [L646] SORT_1 var_233 = var_233_arg_0 & var_233_arg_1; [L647] var_233 = var_233 & mask_SORT_1 [L648] SORT_1 var_234_arg_0 = input_149; [L649] SORT_1 var_234_arg_1 = var_232; [L650] SORT_1 var_234 = var_234_arg_0 & var_234_arg_1; [L651] var_234 = var_234 & mask_SORT_1 [L652] SORT_2 var_235_arg_0 = var_187; [L653] SORT_2 var_235_arg_1 = state_18; [L654] SORT_2 var_235 = var_235_arg_0 ^ var_235_arg_1; [L655] SORT_1 var_236_arg_0 = var_234; [L656] SORT_2 var_236_arg_1 = var_88; [L657] SORT_2 var_236_arg_2 = var_235; [L658] EXPR var_236_arg_0 ? var_236_arg_1 : var_236_arg_2 [L658] SORT_2 var_236 = var_236_arg_0 ? var_236_arg_1 : var_236_arg_2; [L659] SORT_1 var_237_arg_0 = var_233; [L660] SORT_2 var_237_arg_1 = var_88; [L661] SORT_2 var_237_arg_2 = var_236; [L662] EXPR var_237_arg_0 ? var_237_arg_1 : var_237_arg_2 [L662] SORT_2 var_237 = var_237_arg_0 ? var_237_arg_1 : var_237_arg_2; [L663] SORT_1 var_238_arg_0 = var_231; [L664] SORT_2 var_238_arg_1 = var_143; [L665] SORT_2 var_238_arg_2 = var_237; [L666] EXPR var_238_arg_0 ? var_238_arg_1 : var_238_arg_2 [L666] SORT_2 var_238 = var_238_arg_0 ? var_238_arg_1 : var_238_arg_2; [L667] SORT_1 var_239_arg_0 = var_230; [L668] SORT_2 var_239_arg_1 = var_121; [L669] SORT_2 var_239_arg_2 = var_238; [L670] EXPR var_239_arg_0 ? var_239_arg_1 : var_239_arg_2 [L670] SORT_2 var_239 = var_239_arg_0 ? var_239_arg_1 : var_239_arg_2; [L671] SORT_2 var_240_arg_0 = var_187; [L672] SORT_2 var_240_arg_1 = var_239; [L673] SORT_2 var_240 = var_240_arg_0 ^ var_240_arg_1; [L674] SORT_2 next_241_arg_1 = var_240; [L675] SORT_2 var_242_arg_0 = var_171; [L676] SORT_2 var_242_arg_1 = var_90; [L677] SORT_1 var_242 = var_242_arg_0 == var_242_arg_1; [L678] SORT_1 var_243_arg_0 = var_242; [L679] SORT_1 var_243_arg_1 = input_92; [L680] SORT_1 var_243 = var_243_arg_0 & var_243_arg_1; [L681] var_243 = var_243 & mask_SORT_1 [L682] SORT_1 var_244_arg_0 = input_122; [L683] SORT_1 var_244_arg_1 = var_242; [L684] SORT_1 var_244 = var_244_arg_0 & var_244_arg_1; [L685] var_244 = var_244 & mask_SORT_1 [L686] SORT_4 var_245_arg_0 = var_112; [L687] SORT_4 var_245_arg_1 = var_145; [L688] SORT_1 var_245 = var_245_arg_0 == var_245_arg_1; [L689] SORT_1 var_246_arg_0 = var_245; [L690] SORT_1 var_246_arg_1 = input_147; [L691] SORT_1 var_246 = var_246_arg_0 & var_246_arg_1; [L692] var_246 = var_246 & mask_SORT_1 [L693] SORT_1 var_247_arg_0 = input_149; [L694] SORT_1 var_247_arg_1 = var_245; [L695] SORT_1 var_247 = var_247_arg_0 & var_247_arg_1; [L696] var_247 = var_247 & mask_SORT_1 [L697] SORT_2 var_248_arg_0 = var_172; [L698] SORT_2 var_248_arg_1 = state_20; [L699] SORT_2 var_248 = var_248_arg_0 ^ var_248_arg_1; [L700] SORT_1 var_249_arg_0 = var_247; [L701] SORT_2 var_249_arg_1 = var_88; [L702] SORT_2 var_249_arg_2 = var_248; [L703] EXPR var_249_arg_0 ? var_249_arg_1 : var_249_arg_2 [L703] SORT_2 var_249 = var_249_arg_0 ? var_249_arg_1 : var_249_arg_2; [L704] SORT_1 var_250_arg_0 = var_246; [L705] SORT_2 var_250_arg_1 = var_88; [L706] SORT_2 var_250_arg_2 = var_249; [L707] EXPR var_250_arg_0 ? var_250_arg_1 : var_250_arg_2 [L707] SORT_2 var_250 = var_250_arg_0 ? var_250_arg_1 : var_250_arg_2; [L708] SORT_1 var_251_arg_0 = var_244; [L709] SORT_2 var_251_arg_1 = var_143; [L710] SORT_2 var_251_arg_2 = var_250; [L711] EXPR var_251_arg_0 ? var_251_arg_1 : var_251_arg_2 [L711] SORT_2 var_251 = var_251_arg_0 ? var_251_arg_1 : var_251_arg_2; [L712] SORT_1 var_252_arg_0 = var_243; [L713] SORT_2 var_252_arg_1 = var_121; [L714] SORT_2 var_252_arg_2 = var_251; [L715] EXPR var_252_arg_0 ? var_252_arg_1 : var_252_arg_2 [L715] SORT_2 var_252 = var_252_arg_0 ? var_252_arg_1 : var_252_arg_2; [L716] SORT_2 var_253_arg_0 = var_172; [L717] SORT_2 var_253_arg_1 = var_252; [L718] SORT_2 var_253 = var_253_arg_0 ^ var_253_arg_1; [L719] SORT_2 next_254_arg_1 = var_253; [L720] SORT_2 var_255_arg_0 = var_81; [L721] SORT_2 var_255_arg_1 = var_90; [L722] SORT_1 var_255 = var_255_arg_0 == var_255_arg_1; [L723] SORT_1 var_256_arg_0 = var_255; [L724] SORT_1 var_256_arg_1 = input_92; [L725] SORT_1 var_256 = var_256_arg_0 & var_256_arg_1; [L726] var_256 = var_256 & mask_SORT_1 [L727] SORT_1 var_257_arg_0 = input_122; [L728] SORT_1 var_257_arg_1 = var_255; [L729] SORT_1 var_257 = var_257_arg_0 & var_257_arg_1; [L730] var_257 = var_257 & mask_SORT_1 [L731] SORT_4 var_259_arg_0 = var_258; [L732] SORT_4 var_259_arg_1 = var_145; [L733] SORT_1 var_259 = var_259_arg_0 == var_259_arg_1; [L734] SORT_1 var_260_arg_0 = var_259; [L735] SORT_1 var_260_arg_1 = input_147; [L736] SORT_1 var_260 = var_260_arg_0 & var_260_arg_1; [L737] var_260 = var_260 & mask_SORT_1 [L738] SORT_1 var_261_arg_0 = input_149; [L739] SORT_1 var_261_arg_1 = var_259; [L740] SORT_1 var_261 = var_261_arg_0 & var_261_arg_1; [L741] var_261 = var_261 & mask_SORT_1 [L742] SORT_2 var_262_arg_0 = var_82; [L743] SORT_2 var_262_arg_1 = state_22; [L744] SORT_2 var_262 = var_262_arg_0 ^ var_262_arg_1; [L745] SORT_1 var_263_arg_0 = var_261; [L746] SORT_2 var_263_arg_1 = var_88; [L747] SORT_2 var_263_arg_2 = var_262; [L748] EXPR var_263_arg_0 ? var_263_arg_1 : var_263_arg_2 [L748] SORT_2 var_263 = var_263_arg_0 ? var_263_arg_1 : var_263_arg_2; [L749] SORT_1 var_264_arg_0 = var_260; [L750] SORT_2 var_264_arg_1 = var_88; [L751] SORT_2 var_264_arg_2 = var_263; [L752] EXPR var_264_arg_0 ? var_264_arg_1 : var_264_arg_2 [L752] SORT_2 var_264 = var_264_arg_0 ? var_264_arg_1 : var_264_arg_2; [L753] SORT_1 var_265_arg_0 = var_257; [L754] SORT_2 var_265_arg_1 = var_143; [L755] SORT_2 var_265_arg_2 = var_264; [L756] EXPR var_265_arg_0 ? var_265_arg_1 : var_265_arg_2 [L756] SORT_2 var_265 = var_265_arg_0 ? var_265_arg_1 : var_265_arg_2; [L757] SORT_1 var_266_arg_0 = var_256; [L758] SORT_2 var_266_arg_1 = var_121; [L759] SORT_2 var_266_arg_2 = var_265; [L760] EXPR var_266_arg_0 ? var_266_arg_1 : var_266_arg_2 [L760] SORT_2 var_266 = var_266_arg_0 ? var_266_arg_1 : var_266_arg_2; [L761] SORT_2 var_267_arg_0 = var_82; [L762] SORT_2 var_267_arg_1 = var_266; [L763] SORT_2 var_267 = var_267_arg_0 ^ var_267_arg_1; [L764] SORT_2 next_268_arg_1 = var_267; [L765] SORT_4 var_269_arg_0 = var_97; [L766] SORT_4 var_269_arg_1 = var_144; [L767] SORT_4 var_269 = var_269_arg_0 + var_269_arg_1; [L768] SORT_4 var_270_arg_0 = var_269; [L769] SORT_2 var_270 = var_270_arg_0 >> 0; [L770] SORT_4 var_271_arg_0 = var_145; [L771] SORT_2 var_271 = var_271_arg_0 >> 0; [L772] SORT_1 var_272_arg_0 = input_149; [L773] SORT_2 var_272_arg_1 = var_271; [L774] SORT_2 var_272_arg_2 = var_90; [L775] EXPR var_272_arg_0 ? var_272_arg_1 : var_272_arg_2 [L775] SORT_2 var_272 = var_272_arg_0 ? var_272_arg_1 : var_272_arg_2; [L776] SORT_1 var_273_arg_0 = input_147; [L777] SORT_2 var_273_arg_1 = var_271; [L778] SORT_2 var_273_arg_2 = var_272; [L779] EXPR var_273_arg_0 ? var_273_arg_1 : var_273_arg_2 [L779] SORT_2 var_273 = var_273_arg_0 ? var_273_arg_1 : var_273_arg_2; [L780] SORT_1 var_274_arg_0 = input_122; [L781] SORT_2 var_274_arg_1 = var_270; [L782] SORT_2 var_274_arg_2 = var_273; [L783] EXPR var_274_arg_0 ? var_274_arg_1 : var_274_arg_2 [L783] SORT_2 var_274 = var_274_arg_0 ? var_274_arg_1 : var_274_arg_2; [L784] SORT_1 var_275_arg_0 = input_92; [L785] SORT_2 var_275_arg_1 = var_270; [L786] SORT_2 var_275_arg_2 = var_274; [L787] EXPR var_275_arg_0 ? var_275_arg_1 : var_275_arg_2 [L787] SORT_2 var_275 = var_275_arg_0 ? var_275_arg_1 : var_275_arg_2; [L788] SORT_2 var_276_arg_0 = var_89; [L789] SORT_2 var_276_arg_1 = var_275; [L790] SORT_2 var_276 = var_276_arg_0 ^ var_276_arg_1; [L791] SORT_2 next_277_arg_1 = var_276; [L792] SORT_2 var_278_arg_0 = var_88; [L793] SORT_2 var_278_arg_1 = var_124; [L794] SORT_1 var_278 = var_278_arg_0 == var_278_arg_1; [L795] SORT_1 var_280_arg_0 = var_278; [L796] SORT_1 var_280_arg_1 = input_279; [L797] SORT_1 var_280 = var_280_arg_0 & var_280_arg_1; [L798] var_280 = var_280 & mask_SORT_1 [L799] SORT_1 var_282_arg_0 = var_127; [L800] SORT_1 var_282_arg_1 = input_281; [L801] SORT_1 var_282 = var_282_arg_0 & var_282_arg_1; [L802] var_282 = var_282 & mask_SORT_1 [L803] SORT_1 var_283_arg_0 = var_127; [L804] SORT_1 var_283_arg_1 = input_122; [L805] SORT_1 var_283 = var_283_arg_0 & var_283_arg_1; [L806] var_283 = var_283 & mask_SORT_1 [L807] SORT_1 var_284_arg_0 = input_149; [L808] SORT_1 var_284_arg_1 = var_278; [L809] SORT_1 var_284 = var_284_arg_0 & var_284_arg_1; [L810] var_284 = var_284 & mask_SORT_1 [L811] SORT_1 var_285_arg_0 = var_245; [L812] SORT_2 var_285_arg_1 = var_248; [L813] SORT_2 var_285_arg_2 = var_262; [L814] EXPR var_285_arg_0 ? var_285_arg_1 : var_285_arg_2 [L814] SORT_2 var_285 = var_285_arg_0 ? var_285_arg_1 : var_285_arg_2; [L815] SORT_1 var_286_arg_0 = var_232; [L816] SORT_2 var_286_arg_1 = var_235; [L817] SORT_2 var_286_arg_2 = var_285; [L818] EXPR var_286_arg_0 ? var_286_arg_1 : var_286_arg_2 [L818] SORT_2 var_286 = var_286_arg_0 ? var_286_arg_1 : var_286_arg_2; [L819] SORT_1 var_287_arg_0 = var_219; [L820] SORT_2 var_287_arg_1 = var_222; [L821] SORT_2 var_287_arg_2 = var_286; [L822] EXPR var_287_arg_0 ? var_287_arg_1 : var_287_arg_2 [L822] SORT_2 var_287 = var_287_arg_0 ? var_287_arg_1 : var_287_arg_2; [L823] SORT_1 var_288_arg_0 = var_206; [L824] SORT_2 var_288_arg_1 = var_209; [L825] SORT_2 var_288_arg_2 = var_287; [L826] EXPR var_288_arg_0 ? var_288_arg_1 : var_288_arg_2 [L826] SORT_2 var_288 = var_288_arg_0 ? var_288_arg_1 : var_288_arg_2; [L827] SORT_1 var_289_arg_0 = var_191; [L828] SORT_2 var_289_arg_1 = var_194; [L829] SORT_2 var_289_arg_2 = var_288; [L830] EXPR var_289_arg_0 ? var_289_arg_1 : var_289_arg_2 [L830] SORT_2 var_289 = var_289_arg_0 ? var_289_arg_1 : var_289_arg_2; [L831] SORT_1 var_290_arg_0 = var_176; [L832] SORT_2 var_290_arg_1 = var_179; [L833] SORT_2 var_290_arg_2 = var_289; [L834] EXPR var_290_arg_0 ? var_290_arg_1 : var_290_arg_2 [L834] SORT_2 var_290 = var_290_arg_0 ? var_290_arg_1 : var_290_arg_2; [L835] SORT_1 var_291_arg_0 = var_161; [L836] SORT_2 var_291_arg_1 = var_164; [L837] SORT_2 var_291_arg_2 = var_290; [L838] EXPR var_291_arg_0 ? var_291_arg_1 : var_291_arg_2 [L838] SORT_2 var_291 = var_291_arg_0 ? var_291_arg_1 : var_291_arg_2; [L839] SORT_1 var_292_arg_0 = var_146; [L840] SORT_2 var_292_arg_1 = var_151; [L841] SORT_2 var_292_arg_2 = var_291; [L842] EXPR var_292_arg_0 ? var_292_arg_1 : var_292_arg_2 [L842] SORT_2 var_292 = var_292_arg_0 ? var_292_arg_1 : var_292_arg_2; [L843] var_292 = var_292 & mask_SORT_2 [L844] SORT_1 var_293_arg_0 = var_284; [L845] SORT_2 var_293_arg_1 = var_292; [L846] SORT_2 var_293_arg_2 = var_128; [L847] EXPR var_293_arg_0 ? var_293_arg_1 : var_293_arg_2 [L847] SORT_2 var_293 = var_293_arg_0 ? var_293_arg_1 : var_293_arg_2; [L848] SORT_1 var_294_arg_0 = var_283; [L849] SORT_2 var_294_arg_1 = var_88; [L850] SORT_2 var_294_arg_2 = var_293; [L851] EXPR var_294_arg_0 ? var_294_arg_1 : var_294_arg_2 [L851] SORT_2 var_294 = var_294_arg_0 ? var_294_arg_1 : var_294_arg_2; [L852] SORT_1 var_295_arg_0 = var_282; [L853] SORT_2 var_295_arg_1 = var_88; [L854] SORT_2 var_295_arg_2 = var_294; [L855] EXPR var_295_arg_0 ? var_295_arg_1 : var_295_arg_2 [L855] SORT_2 var_295 = var_295_arg_0 ? var_295_arg_1 : var_295_arg_2; [L856] SORT_1 var_296_arg_0 = var_280; [L857] SORT_2 var_296_arg_1 = var_121; [L858] SORT_2 var_296_arg_2 = var_295; [L859] EXPR var_296_arg_0 ? var_296_arg_1 : var_296_arg_2 [L859] SORT_2 var_296 = var_296_arg_0 ? var_296_arg_1 : var_296_arg_2; [L860] SORT_2 var_297_arg_0 = var_87; [L861] SORT_2 var_297_arg_1 = var_296; [L862] SORT_2 var_297 = var_297_arg_0 ^ var_297_arg_1; [L863] SORT_2 next_298_arg_1 = var_297; [L864] SORT_2 var_299_arg_0 = var_82; [L865] SORT_2 var_299_arg_1 = var_124; [L866] SORT_1 var_299 = var_299_arg_0 == var_299_arg_1; [L867] SORT_1 var_300_arg_0 = var_299; [L868] SORT_1 var_300_arg_1 = input_279; [L869] SORT_1 var_300 = var_300_arg_0 & var_300_arg_1; [L870] var_300 = var_300 & mask_SORT_1 [L871] SORT_1 var_301_arg_0 = var_129; [L872] SORT_1 var_301_arg_1 = input_281; [L873] SORT_1 var_301 = var_301_arg_0 & var_301_arg_1; [L874] var_301 = var_301 & mask_SORT_1 [L875] SORT_1 var_302_arg_0 = var_129; [L876] SORT_1 var_302_arg_1 = input_122; [L877] SORT_1 var_302 = var_302_arg_0 & var_302_arg_1; [L878] var_302 = var_302 & mask_SORT_1 [L879] SORT_1 var_303_arg_0 = input_149; [L880] SORT_1 var_303_arg_1 = var_299; [L881] SORT_1 var_303 = var_303_arg_0 & var_303_arg_1; [L882] var_303 = var_303 & mask_SORT_1 [L883] SORT_1 var_304_arg_0 = var_303; [L884] SORT_2 var_304_arg_1 = var_292; [L885] SORT_2 var_304_arg_2 = state_28; [L886] EXPR var_304_arg_0 ? var_304_arg_1 : var_304_arg_2 [L886] SORT_2 var_304 = var_304_arg_0 ? var_304_arg_1 : var_304_arg_2; [L887] SORT_1 var_305_arg_0 = var_302; [L888] SORT_2 var_305_arg_1 = var_88; [L889] SORT_2 var_305_arg_2 = var_304; [L890] EXPR var_305_arg_0 ? var_305_arg_1 : var_305_arg_2 [L890] SORT_2 var_305 = var_305_arg_0 ? var_305_arg_1 : var_305_arg_2; [L891] SORT_1 var_306_arg_0 = var_301; [L892] SORT_2 var_306_arg_1 = var_88; [L893] SORT_2 var_306_arg_2 = var_305; [L894] EXPR var_306_arg_0 ? var_306_arg_1 : var_306_arg_2 [L894] SORT_2 var_306 = var_306_arg_0 ? var_306_arg_1 : var_306_arg_2; [L895] SORT_1 var_307_arg_0 = var_300; [L896] SORT_2 var_307_arg_1 = var_121; [L897] SORT_2 var_307_arg_2 = var_306; [L898] EXPR var_307_arg_0 ? var_307_arg_1 : var_307_arg_2 [L898] SORT_2 var_307 = var_307_arg_0 ? var_307_arg_1 : var_307_arg_2; [L899] SORT_2 next_308_arg_1 = var_307; [L900] SORT_2 var_309_arg_0 = var_172; [L901] SORT_2 var_309_arg_1 = var_124; [L902] SORT_1 var_309 = var_309_arg_0 == var_309_arg_1; [L903] SORT_1 var_310_arg_0 = var_309; [L904] SORT_1 var_310_arg_1 = input_279; [L905] SORT_1 var_310 = var_310_arg_0 & var_310_arg_1; [L906] var_310 = var_310 & mask_SORT_1 [L907] SORT_1 var_311_arg_0 = var_130; [L908] SORT_1 var_311_arg_1 = input_281; [L909] SORT_1 var_311 = var_311_arg_0 & var_311_arg_1; [L910] var_311 = var_311 & mask_SORT_1 [L911] SORT_1 var_312_arg_0 = var_130; [L912] SORT_1 var_312_arg_1 = input_122; [L913] SORT_1 var_312 = var_312_arg_0 & var_312_arg_1; [L914] var_312 = var_312 & mask_SORT_1 [L915] SORT_1 var_313_arg_0 = input_149; [L916] SORT_1 var_313_arg_1 = var_309; [L917] SORT_1 var_313 = var_313_arg_0 & var_313_arg_1; [L918] var_313 = var_313 & mask_SORT_1 [L919] SORT_1 var_314_arg_0 = var_313; [L920] SORT_2 var_314_arg_1 = var_292; [L921] SORT_2 var_314_arg_2 = state_30; [L922] EXPR var_314_arg_0 ? var_314_arg_1 : var_314_arg_2 [L922] SORT_2 var_314 = var_314_arg_0 ? var_314_arg_1 : var_314_arg_2; [L923] SORT_1 var_315_arg_0 = var_312; [L924] SORT_2 var_315_arg_1 = var_88; [L925] SORT_2 var_315_arg_2 = var_314; [L926] EXPR var_315_arg_0 ? var_315_arg_1 : var_315_arg_2 [L926] SORT_2 var_315 = var_315_arg_0 ? var_315_arg_1 : var_315_arg_2; [L927] SORT_1 var_316_arg_0 = var_311; [L928] SORT_2 var_316_arg_1 = var_88; [L929] SORT_2 var_316_arg_2 = var_315; [L930] EXPR var_316_arg_0 ? var_316_arg_1 : var_316_arg_2 [L930] SORT_2 var_316 = var_316_arg_0 ? var_316_arg_1 : var_316_arg_2; [L931] SORT_1 var_317_arg_0 = var_310; [L932] SORT_2 var_317_arg_1 = var_121; [L933] SORT_2 var_317_arg_2 = var_316; [L934] EXPR var_317_arg_0 ? var_317_arg_1 : var_317_arg_2 [L934] SORT_2 var_317 = var_317_arg_0 ? var_317_arg_1 : var_317_arg_2; [L935] SORT_2 next_318_arg_1 = var_317; [L936] SORT_2 var_319_arg_0 = var_187; [L937] SORT_2 var_319_arg_1 = var_124; [L938] SORT_1 var_319 = var_319_arg_0 == var_319_arg_1; [L939] SORT_1 var_320_arg_0 = var_319; [L940] SORT_1 var_320_arg_1 = input_279; [L941] SORT_1 var_320 = var_320_arg_0 & var_320_arg_1; [L942] var_320 = var_320 & mask_SORT_1 [L943] SORT_1 var_321_arg_0 = var_131; [L944] SORT_1 var_321_arg_1 = input_281; [L945] SORT_1 var_321 = var_321_arg_0 & var_321_arg_1; [L946] var_321 = var_321 & mask_SORT_1 [L947] SORT_1 var_322_arg_0 = var_131; [L948] SORT_1 var_322_arg_1 = input_122; [L949] SORT_1 var_322 = var_322_arg_0 & var_322_arg_1; [L950] var_322 = var_322 & mask_SORT_1 [L951] SORT_1 var_323_arg_0 = input_149; [L952] SORT_1 var_323_arg_1 = var_319; [L953] SORT_1 var_323 = var_323_arg_0 & var_323_arg_1; [L954] var_323 = var_323 & mask_SORT_1 [L955] SORT_1 var_324_arg_0 = var_323; [L956] SORT_2 var_324_arg_1 = var_292; [L957] SORT_2 var_324_arg_2 = state_32; [L958] EXPR var_324_arg_0 ? var_324_arg_1 : var_324_arg_2 [L958] SORT_2 var_324 = var_324_arg_0 ? var_324_arg_1 : var_324_arg_2; [L959] SORT_1 var_325_arg_0 = var_322; [L960] SORT_2 var_325_arg_1 = var_88; [L961] SORT_2 var_325_arg_2 = var_324; [L962] EXPR var_325_arg_0 ? var_325_arg_1 : var_325_arg_2 [L962] SORT_2 var_325 = var_325_arg_0 ? var_325_arg_1 : var_325_arg_2; [L963] SORT_1 var_326_arg_0 = var_321; [L964] SORT_2 var_326_arg_1 = var_88; [L965] SORT_2 var_326_arg_2 = var_325; [L966] EXPR var_326_arg_0 ? var_326_arg_1 : var_326_arg_2 [L966] SORT_2 var_326 = var_326_arg_0 ? var_326_arg_1 : var_326_arg_2; [L967] SORT_1 var_327_arg_0 = var_320; [L968] SORT_2 var_327_arg_1 = var_121; [L969] SORT_2 var_327_arg_2 = var_326; [L970] EXPR var_327_arg_0 ? var_327_arg_1 : var_327_arg_2 [L970] SORT_2 var_327 = var_327_arg_0 ? var_327_arg_1 : var_327_arg_2; [L971] SORT_2 next_328_arg_1 = var_327; [L972] SORT_2 var_329_arg_0 = var_202; [L973] SORT_2 var_329_arg_1 = var_124; [L974] SORT_1 var_329 = var_329_arg_0 == var_329_arg_1; [L975] SORT_1 var_330_arg_0 = var_329; [L976] SORT_1 var_330_arg_1 = input_279; [L977] SORT_1 var_330 = var_330_arg_0 & var_330_arg_1; [L978] var_330 = var_330 & mask_SORT_1 [L979] SORT_1 var_331_arg_0 = var_132; [L980] SORT_1 var_331_arg_1 = input_281; [L981] SORT_1 var_331 = var_331_arg_0 & var_331_arg_1; [L982] var_331 = var_331 & mask_SORT_1 [L983] SORT_1 var_332_arg_0 = var_132; [L984] SORT_1 var_332_arg_1 = input_122; [L985] SORT_1 var_332 = var_332_arg_0 & var_332_arg_1; [L986] var_332 = var_332 & mask_SORT_1 [L987] SORT_1 var_333_arg_0 = input_149; [L988] SORT_1 var_333_arg_1 = var_329; [L989] SORT_1 var_333 = var_333_arg_0 & var_333_arg_1; [L990] var_333 = var_333 & mask_SORT_1 [L991] SORT_1 var_334_arg_0 = var_333; [L992] SORT_2 var_334_arg_1 = var_292; [L993] SORT_2 var_334_arg_2 = state_34; [L994] EXPR var_334_arg_0 ? var_334_arg_1 : var_334_arg_2 [L994] SORT_2 var_334 = var_334_arg_0 ? var_334_arg_1 : var_334_arg_2; [L995] SORT_1 var_335_arg_0 = var_332; [L996] SORT_2 var_335_arg_1 = var_88; [L997] SORT_2 var_335_arg_2 = var_334; [L998] EXPR var_335_arg_0 ? var_335_arg_1 : var_335_arg_2 [L998] SORT_2 var_335 = var_335_arg_0 ? var_335_arg_1 : var_335_arg_2; [L999] SORT_1 var_336_arg_0 = var_331; [L1000] SORT_2 var_336_arg_1 = var_88; [L1001] SORT_2 var_336_arg_2 = var_335; [L1002] EXPR var_336_arg_0 ? var_336_arg_1 : var_336_arg_2 [L1002] SORT_2 var_336 = var_336_arg_0 ? var_336_arg_1 : var_336_arg_2; [L1003] SORT_1 var_337_arg_0 = var_330; [L1004] SORT_2 var_337_arg_1 = var_121; [L1005] SORT_2 var_337_arg_2 = var_336; [L1006] EXPR var_337_arg_0 ? var_337_arg_1 : var_337_arg_2 [L1006] SORT_2 var_337 = var_337_arg_0 ? var_337_arg_1 : var_337_arg_2; [L1007] SORT_2 next_338_arg_1 = var_337; [L1008] SORT_2 var_339_arg_0 = var_201; [L1009] SORT_2 var_339_arg_1 = var_124; [L1010] SORT_1 var_339 = var_339_arg_0 == var_339_arg_1; [L1011] SORT_1 var_340_arg_0 = var_339; [L1012] SORT_1 var_340_arg_1 = input_279; [L1013] SORT_1 var_340 = var_340_arg_0 & var_340_arg_1; [L1014] var_340 = var_340 & mask_SORT_1 [L1015] SORT_1 var_341_arg_0 = var_133; [L1016] SORT_1 var_341_arg_1 = input_281; [L1017] SORT_1 var_341 = var_341_arg_0 & var_341_arg_1; [L1018] var_341 = var_341 & mask_SORT_1 [L1019] SORT_1 var_342_arg_0 = var_133; [L1020] SORT_1 var_342_arg_1 = input_122; [L1021] SORT_1 var_342 = var_342_arg_0 & var_342_arg_1; [L1022] var_342 = var_342 & mask_SORT_1 [L1023] SORT_1 var_343_arg_0 = input_149; [L1024] SORT_1 var_343_arg_1 = var_339; [L1025] SORT_1 var_343 = var_343_arg_0 & var_343_arg_1; [L1026] var_343 = var_343 & mask_SORT_1 [L1027] SORT_1 var_344_arg_0 = var_343; [L1028] SORT_2 var_344_arg_1 = var_292; [L1029] SORT_2 var_344_arg_2 = state_36; [L1030] EXPR var_344_arg_0 ? var_344_arg_1 : var_344_arg_2 [L1030] SORT_2 var_344 = var_344_arg_0 ? var_344_arg_1 : var_344_arg_2; [L1031] SORT_1 var_345_arg_0 = var_342; [L1032] SORT_2 var_345_arg_1 = var_88; [L1033] SORT_2 var_345_arg_2 = var_344; [L1034] EXPR var_345_arg_0 ? var_345_arg_1 : var_345_arg_2 [L1034] SORT_2 var_345 = var_345_arg_0 ? var_345_arg_1 : var_345_arg_2; [L1035] SORT_1 var_346_arg_0 = var_341; [L1036] SORT_2 var_346_arg_1 = var_88; [L1037] SORT_2 var_346_arg_2 = var_345; [L1038] EXPR var_346_arg_0 ? var_346_arg_1 : var_346_arg_2 [L1038] SORT_2 var_346 = var_346_arg_0 ? var_346_arg_1 : var_346_arg_2; [L1039] SORT_1 var_347_arg_0 = var_340; [L1040] SORT_2 var_347_arg_1 = var_121; [L1041] SORT_2 var_347_arg_2 = var_346; [L1042] EXPR var_347_arg_0 ? var_347_arg_1 : var_347_arg_2 [L1042] SORT_2 var_347 = var_347_arg_0 ? var_347_arg_1 : var_347_arg_2; [L1043] SORT_2 next_348_arg_1 = var_347; [L1044] SORT_2 var_349_arg_0 = var_186; [L1045] SORT_2 var_349_arg_1 = var_124; [L1046] SORT_1 var_349 = var_349_arg_0 == var_349_arg_1; [L1047] SORT_1 var_350_arg_0 = var_349; [L1048] SORT_1 var_350_arg_1 = input_279; [L1049] SORT_1 var_350 = var_350_arg_0 & var_350_arg_1; [L1050] var_350 = var_350 & mask_SORT_1 [L1051] SORT_1 var_351_arg_0 = var_134; [L1052] SORT_1 var_351_arg_1 = input_281; [L1053] SORT_1 var_351 = var_351_arg_0 & var_351_arg_1; [L1054] var_351 = var_351 & mask_SORT_1 [L1055] SORT_1 var_352_arg_0 = var_134; [L1056] SORT_1 var_352_arg_1 = input_122; [L1057] SORT_1 var_352 = var_352_arg_0 & var_352_arg_1; [L1058] var_352 = var_352 & mask_SORT_1 [L1059] SORT_1 var_353_arg_0 = input_149; [L1060] SORT_1 var_353_arg_1 = var_349; [L1061] SORT_1 var_353 = var_353_arg_0 & var_353_arg_1; [L1062] var_353 = var_353 & mask_SORT_1 [L1063] SORT_1 var_354_arg_0 = var_353; [L1064] SORT_2 var_354_arg_1 = var_292; [L1065] SORT_2 var_354_arg_2 = state_38; [L1066] EXPR var_354_arg_0 ? var_354_arg_1 : var_354_arg_2 [L1066] SORT_2 var_354 = var_354_arg_0 ? var_354_arg_1 : var_354_arg_2; [L1067] SORT_1 var_355_arg_0 = var_352; [L1068] SORT_2 var_355_arg_1 = var_88; [L1069] SORT_2 var_355_arg_2 = var_354; [L1070] EXPR var_355_arg_0 ? var_355_arg_1 : var_355_arg_2 [L1070] SORT_2 var_355 = var_355_arg_0 ? var_355_arg_1 : var_355_arg_2; [L1071] SORT_1 var_356_arg_0 = var_351; [L1072] SORT_2 var_356_arg_1 = var_88; [L1073] SORT_2 var_356_arg_2 = var_355; [L1074] EXPR var_356_arg_0 ? var_356_arg_1 : var_356_arg_2 [L1074] SORT_2 var_356 = var_356_arg_0 ? var_356_arg_1 : var_356_arg_2; [L1075] SORT_1 var_357_arg_0 = var_350; [L1076] SORT_2 var_357_arg_1 = var_121; [L1077] SORT_2 var_357_arg_2 = var_356; [L1078] EXPR var_357_arg_0 ? var_357_arg_1 : var_357_arg_2 [L1078] SORT_2 var_357 = var_357_arg_0 ? var_357_arg_1 : var_357_arg_2; [L1079] SORT_2 next_358_arg_1 = var_357; [L1080] SORT_2 var_359_arg_0 = var_171; [L1081] SORT_2 var_359_arg_1 = var_124; [L1082] SORT_1 var_359 = var_359_arg_0 == var_359_arg_1; [L1083] SORT_1 var_360_arg_0 = var_359; [L1084] SORT_1 var_360_arg_1 = input_279; [L1085] SORT_1 var_360 = var_360_arg_0 & var_360_arg_1; [L1086] var_360 = var_360 & mask_SORT_1 [L1087] SORT_1 var_361_arg_0 = var_135; [L1088] SORT_1 var_361_arg_1 = input_281; [L1089] SORT_1 var_361 = var_361_arg_0 & var_361_arg_1; [L1090] var_361 = var_361 & mask_SORT_1 [L1091] SORT_1 var_362_arg_0 = var_135; [L1092] SORT_1 var_362_arg_1 = input_122; [L1093] SORT_1 var_362 = var_362_arg_0 & var_362_arg_1; [L1094] var_362 = var_362 & mask_SORT_1 [L1095] SORT_1 var_363_arg_0 = input_149; [L1096] SORT_1 var_363_arg_1 = var_359; [L1097] SORT_1 var_363 = var_363_arg_0 & var_363_arg_1; [L1098] var_363 = var_363 & mask_SORT_1 [L1099] SORT_1 var_364_arg_0 = var_363; [L1100] SORT_2 var_364_arg_1 = var_292; [L1101] SORT_2 var_364_arg_2 = state_40; [L1102] EXPR var_364_arg_0 ? var_364_arg_1 : var_364_arg_2 [L1102] SORT_2 var_364 = var_364_arg_0 ? var_364_arg_1 : var_364_arg_2; [L1103] SORT_1 var_365_arg_0 = var_362; [L1104] SORT_2 var_365_arg_1 = var_88; [L1105] SORT_2 var_365_arg_2 = var_364; [L1106] EXPR var_365_arg_0 ? var_365_arg_1 : var_365_arg_2 [L1106] SORT_2 var_365 = var_365_arg_0 ? var_365_arg_1 : var_365_arg_2; [L1107] SORT_1 var_366_arg_0 = var_361; [L1108] SORT_2 var_366_arg_1 = var_88; [L1109] SORT_2 var_366_arg_2 = var_365; [L1110] EXPR var_366_arg_0 ? var_366_arg_1 : var_366_arg_2 [L1110] SORT_2 var_366 = var_366_arg_0 ? var_366_arg_1 : var_366_arg_2; [L1111] SORT_1 var_367_arg_0 = var_360; [L1112] SORT_2 var_367_arg_1 = var_121; [L1113] SORT_2 var_367_arg_2 = var_366; [L1114] EXPR var_367_arg_0 ? var_367_arg_1 : var_367_arg_2 [L1114] SORT_2 var_367 = var_367_arg_0 ? var_367_arg_1 : var_367_arg_2; [L1115] SORT_2 next_368_arg_1 = var_367; [L1116] SORT_2 var_369_arg_0 = var_81; [L1117] SORT_2 var_369_arg_1 = var_124; [L1118] SORT_1 var_369 = var_369_arg_0 == var_369_arg_1; [L1119] SORT_1 var_370_arg_0 = var_369; [L1120] SORT_1 var_370_arg_1 = input_279; [L1121] SORT_1 var_370 = var_370_arg_0 & var_370_arg_1; [L1122] var_370 = var_370 & mask_SORT_1 [L1123] SORT_4 var_371_arg_0 = var_258; [L1124] SORT_4 var_371_arg_1 = var_126; [L1125] SORT_1 var_371 = var_371_arg_0 == var_371_arg_1; [L1126] SORT_1 var_372_arg_0 = var_371; [L1127] SORT_1 var_372_arg_1 = input_281; [L1128] SORT_1 var_372 = var_372_arg_0 & var_372_arg_1; [L1129] var_372 = var_372 & mask_SORT_1 [L1130] SORT_1 var_373_arg_0 = var_371; [L1131] SORT_1 var_373_arg_1 = input_122; [L1132] SORT_1 var_373 = var_373_arg_0 & var_373_arg_1; [L1133] var_373 = var_373 & mask_SORT_1 [L1134] SORT_1 var_374_arg_0 = input_149; [L1135] SORT_1 var_374_arg_1 = var_369; [L1136] SORT_1 var_374 = var_374_arg_0 & var_374_arg_1; [L1137] var_374 = var_374 & mask_SORT_1 [L1138] SORT_1 var_375_arg_0 = var_374; [L1139] SORT_2 var_375_arg_1 = var_292; [L1140] SORT_2 var_375_arg_2 = state_42; [L1141] EXPR var_375_arg_0 ? var_375_arg_1 : var_375_arg_2 [L1141] SORT_2 var_375 = var_375_arg_0 ? var_375_arg_1 : var_375_arg_2; [L1142] SORT_1 var_376_arg_0 = var_373; [L1143] SORT_2 var_376_arg_1 = var_88; [L1144] SORT_2 var_376_arg_2 = var_375; [L1145] EXPR var_376_arg_0 ? var_376_arg_1 : var_376_arg_2 [L1145] SORT_2 var_376 = var_376_arg_0 ? var_376_arg_1 : var_376_arg_2; [L1146] SORT_1 var_377_arg_0 = var_372; [L1147] SORT_2 var_377_arg_1 = var_88; [L1148] SORT_2 var_377_arg_2 = var_376; [L1149] EXPR var_377_arg_0 ? var_377_arg_1 : var_377_arg_2 [L1149] SORT_2 var_377 = var_377_arg_0 ? var_377_arg_1 : var_377_arg_2; [L1150] SORT_1 var_378_arg_0 = var_370; [L1151] SORT_2 var_378_arg_1 = var_121; [L1152] SORT_2 var_378_arg_2 = var_377; [L1153] EXPR var_378_arg_0 ? var_378_arg_1 : var_378_arg_2 [L1153] SORT_2 var_378 = var_378_arg_0 ? var_378_arg_1 : var_378_arg_2; [L1154] SORT_2 next_379_arg_1 = var_378; [L1155] SORT_4 var_380_arg_0 = var_97; [L1156] SORT_4 var_380_arg_1 = var_125; [L1157] SORT_4 var_380 = var_380_arg_0 + var_380_arg_1; [L1158] SORT_4 var_381_arg_0 = var_380; [L1159] SORT_2 var_381 = var_381_arg_0 >> 0; [L1160] SORT_4 var_382_arg_0 = var_126; [L1161] SORT_2 var_382 = var_382_arg_0 >> 0; [L1162] SORT_1 var_383_arg_0 = input_149; [L1163] SORT_2 var_383_arg_1 = var_381; [L1164] SORT_2 var_383_arg_2 = var_124; [L1165] EXPR var_383_arg_0 ? var_383_arg_1 : var_383_arg_2 [L1165] SORT_2 var_383 = var_383_arg_0 ? var_383_arg_1 : var_383_arg_2; [L1166] SORT_1 var_384_arg_0 = input_122; [L1167] SORT_2 var_384_arg_1 = var_382; [L1168] SORT_2 var_384_arg_2 = var_383; [L1169] EXPR var_384_arg_0 ? var_384_arg_1 : var_384_arg_2 [L1169] SORT_2 var_384 = var_384_arg_0 ? var_384_arg_1 : var_384_arg_2; [L1170] SORT_1 var_385_arg_0 = input_281; [L1171] SORT_2 var_385_arg_1 = var_382; [L1172] SORT_2 var_385_arg_2 = var_384; [L1173] EXPR var_385_arg_0 ? var_385_arg_1 : var_385_arg_2 [L1173] SORT_2 var_385 = var_385_arg_0 ? var_385_arg_1 : var_385_arg_2; [L1174] SORT_1 var_386_arg_0 = input_279; [L1175] SORT_2 var_386_arg_1 = var_381; [L1176] SORT_2 var_386_arg_2 = var_385; [L1177] EXPR var_386_arg_0 ? var_386_arg_1 : var_386_arg_2 [L1177] SORT_2 var_386 = var_386_arg_0 ? var_386_arg_1 : var_386_arg_2; [L1178] SORT_2 var_387_arg_0 = var_82; [L1179] SORT_2 var_387_arg_1 = var_386; [L1180] SORT_2 var_387 = var_387_arg_0 ^ var_387_arg_1; [L1181] SORT_2 next_388_arg_1 = var_387; [L1182] SORT_1 var_389_arg_0 = var_99; [L1183] SORT_1 var_389_arg_1 = input_279; [L1184] SORT_1 var_389 = var_389_arg_0 & var_389_arg_1; [L1185] var_389 = var_389 & mask_SORT_1 [L1186] SORT_1 var_390_arg_0 = var_99; [L1187] SORT_1 var_390_arg_1 = input_92; [L1188] SORT_1 var_390 = var_390_arg_0 & var_390_arg_1; [L1189] var_390 = var_390 & mask_SORT_1 [L1190] SORT_2 var_391_arg_0 = var_88; [L1191] SORT_2 var_391_arg_1 = var_83; [L1192] SORT_1 var_391 = var_391_arg_0 == var_391_arg_1; [L1193] SORT_1 var_392_arg_0 = var_391; [L1194] SORT_1 var_392_arg_1 = input_281; [L1195] SORT_1 var_392 = var_392_arg_0 & var_392_arg_1; [L1196] var_392 = var_392 & mask_SORT_1 [L1197] SORT_1 var_393_arg_0 = input_147; [L1198] SORT_1 var_393_arg_1 = var_391; [L1199] SORT_1 var_393 = var_393_arg_0 & var_393_arg_1; [L1200] var_393 = var_393 & mask_SORT_1 [L1201] SORT_1 var_394_arg_0 = var_393; [L1202] SORT_2 var_394_arg_1 = var_292; [L1203] SORT_2 var_394_arg_2 = var_100; [L1204] EXPR var_394_arg_0 ? var_394_arg_1 : var_394_arg_2 [L1204] SORT_2 var_394 = var_394_arg_0 ? var_394_arg_1 : var_394_arg_2; [L1205] SORT_1 var_395_arg_0 = var_392; [L1206] SORT_2 var_395_arg_1 = var_143; [L1207] SORT_2 var_395_arg_2 = var_394; [L1208] EXPR var_395_arg_0 ? var_395_arg_1 : var_395_arg_2 [L1208] SORT_2 var_395 = var_395_arg_0 ? var_395_arg_1 : var_395_arg_2; [L1209] SORT_1 var_396_arg_0 = var_390; [L1210] SORT_2 var_396_arg_1 = var_88; [L1211] SORT_2 var_396_arg_2 = var_395; [L1212] EXPR var_396_arg_0 ? var_396_arg_1 : var_396_arg_2 [L1212] SORT_2 var_396 = var_396_arg_0 ? var_396_arg_1 : var_396_arg_2; [L1213] SORT_1 var_397_arg_0 = var_389; [L1214] SORT_2 var_397_arg_1 = var_88; [L1215] SORT_2 var_397_arg_2 = var_396; [L1216] EXPR var_397_arg_0 ? var_397_arg_1 : var_397_arg_2 [L1216] SORT_2 var_397 = var_397_arg_0 ? var_397_arg_1 : var_397_arg_2; [L1217] SORT_2 var_398_arg_0 = var_87; [L1218] SORT_2 var_398_arg_1 = var_397; [L1219] SORT_2 var_398 = var_398_arg_0 ^ var_398_arg_1; [L1220] SORT_2 next_399_arg_1 = var_398; [L1221] SORT_1 var_400_arg_0 = var_101; [L1222] SORT_1 var_400_arg_1 = input_279; [L1223] SORT_1 var_400 = var_400_arg_0 & var_400_arg_1; [L1224] var_400 = var_400 & mask_SORT_1 [L1225] SORT_1 var_401_arg_0 = var_101; [L1226] SORT_1 var_401_arg_1 = input_92; [L1227] SORT_1 var_401 = var_401_arg_0 & var_401_arg_1; [L1228] var_401 = var_401 & mask_SORT_1 [L1229] SORT_2 var_402_arg_0 = var_82; [L1230] SORT_2 var_402_arg_1 = var_83; [L1231] SORT_1 var_402 = var_402_arg_0 == var_402_arg_1; [L1232] SORT_1 var_403_arg_0 = var_402; [L1233] SORT_1 var_403_arg_1 = input_281; [L1234] SORT_1 var_403 = var_403_arg_0 & var_403_arg_1; [L1235] var_403 = var_403 & mask_SORT_1 [L1236] SORT_1 var_404_arg_0 = input_147; [L1237] SORT_1 var_404_arg_1 = var_402; [L1238] SORT_1 var_404 = var_404_arg_0 & var_404_arg_1; [L1239] var_404 = var_404 & mask_SORT_1 [L1240] SORT_1 var_405_arg_0 = var_404; [L1241] SORT_2 var_405_arg_1 = var_292; [L1242] SORT_2 var_405_arg_2 = state_48; [L1243] EXPR var_405_arg_0 ? var_405_arg_1 : var_405_arg_2 [L1243] SORT_2 var_405 = var_405_arg_0 ? var_405_arg_1 : var_405_arg_2; [L1244] SORT_1 var_406_arg_0 = var_403; [L1245] SORT_2 var_406_arg_1 = var_143; [L1246] SORT_2 var_406_arg_2 = var_405; [L1247] EXPR var_406_arg_0 ? var_406_arg_1 : var_406_arg_2 [L1247] SORT_2 var_406 = var_406_arg_0 ? var_406_arg_1 : var_406_arg_2; [L1248] SORT_1 var_407_arg_0 = var_401; [L1249] SORT_2 var_407_arg_1 = var_88; [L1250] SORT_2 var_407_arg_2 = var_406; [L1251] EXPR var_407_arg_0 ? var_407_arg_1 : var_407_arg_2 [L1251] SORT_2 var_407 = var_407_arg_0 ? var_407_arg_1 : var_407_arg_2; [L1252] SORT_1 var_408_arg_0 = var_400; [L1253] SORT_2 var_408_arg_1 = var_88; [L1254] SORT_2 var_408_arg_2 = var_407; [L1255] EXPR var_408_arg_0 ? var_408_arg_1 : var_408_arg_2 [L1255] SORT_2 var_408 = var_408_arg_0 ? var_408_arg_1 : var_408_arg_2; [L1256] SORT_2 next_409_arg_1 = var_408; [L1257] SORT_1 var_410_arg_0 = var_103; [L1258] SORT_1 var_410_arg_1 = input_279; [L1259] SORT_1 var_410 = var_410_arg_0 & var_410_arg_1; [L1260] var_410 = var_410 & mask_SORT_1 [L1261] SORT_1 var_411_arg_0 = var_103; [L1262] SORT_1 var_411_arg_1 = input_92; [L1263] SORT_1 var_411 = var_411_arg_0 & var_411_arg_1; [L1264] var_411 = var_411 & mask_SORT_1 [L1265] SORT_2 var_412_arg_0 = var_172; [L1266] SORT_2 var_412_arg_1 = var_83; [L1267] SORT_1 var_412 = var_412_arg_0 == var_412_arg_1; [L1268] SORT_1 var_413_arg_0 = var_412; [L1269] SORT_1 var_413_arg_1 = input_281; [L1270] SORT_1 var_413 = var_413_arg_0 & var_413_arg_1; [L1271] var_413 = var_413 & mask_SORT_1 [L1272] SORT_1 var_414_arg_0 = input_147; [L1273] SORT_1 var_414_arg_1 = var_412; [L1274] SORT_1 var_414 = var_414_arg_0 & var_414_arg_1; [L1275] var_414 = var_414 & mask_SORT_1 [L1276] SORT_1 var_415_arg_0 = var_414; [L1277] SORT_2 var_415_arg_1 = var_292; [L1278] SORT_2 var_415_arg_2 = state_50; [L1279] EXPR var_415_arg_0 ? var_415_arg_1 : var_415_arg_2 [L1279] SORT_2 var_415 = var_415_arg_0 ? var_415_arg_1 : var_415_arg_2; [L1280] SORT_1 var_416_arg_0 = var_413; [L1281] SORT_2 var_416_arg_1 = var_143; [L1282] SORT_2 var_416_arg_2 = var_415; [L1283] EXPR var_416_arg_0 ? var_416_arg_1 : var_416_arg_2 [L1283] SORT_2 var_416 = var_416_arg_0 ? var_416_arg_1 : var_416_arg_2; [L1284] SORT_1 var_417_arg_0 = var_411; [L1285] SORT_2 var_417_arg_1 = var_88; [L1286] SORT_2 var_417_arg_2 = var_416; [L1287] EXPR var_417_arg_0 ? var_417_arg_1 : var_417_arg_2 [L1287] SORT_2 var_417 = var_417_arg_0 ? var_417_arg_1 : var_417_arg_2; [L1288] SORT_1 var_418_arg_0 = var_410; [L1289] SORT_2 var_418_arg_1 = var_88; [L1290] SORT_2 var_418_arg_2 = var_417; [L1291] EXPR var_418_arg_0 ? var_418_arg_1 : var_418_arg_2 [L1291] SORT_2 var_418 = var_418_arg_0 ? var_418_arg_1 : var_418_arg_2; [L1292] SORT_2 next_419_arg_1 = var_418; [L1293] SORT_1 var_420_arg_0 = var_105; [L1294] SORT_1 var_420_arg_1 = input_279; [L1295] SORT_1 var_420 = var_420_arg_0 & var_420_arg_1; [L1296] var_420 = var_420 & mask_SORT_1 [L1297] SORT_1 var_421_arg_0 = var_105; [L1298] SORT_1 var_421_arg_1 = input_92; [L1299] SORT_1 var_421 = var_421_arg_0 & var_421_arg_1; [L1300] var_421 = var_421 & mask_SORT_1 [L1301] SORT_2 var_422_arg_0 = var_187; [L1302] SORT_2 var_422_arg_1 = var_83; [L1303] SORT_1 var_422 = var_422_arg_0 == var_422_arg_1; [L1304] SORT_1 var_423_arg_0 = var_422; [L1305] SORT_1 var_423_arg_1 = input_281; [L1306] SORT_1 var_423 = var_423_arg_0 & var_423_arg_1; [L1307] var_423 = var_423 & mask_SORT_1 [L1308] SORT_1 var_424_arg_0 = input_147; [L1309] SORT_1 var_424_arg_1 = var_422; [L1310] SORT_1 var_424 = var_424_arg_0 & var_424_arg_1; [L1311] var_424 = var_424 & mask_SORT_1 [L1312] SORT_1 var_425_arg_0 = var_424; [L1313] SORT_2 var_425_arg_1 = var_292; [L1314] SORT_2 var_425_arg_2 = state_52; [L1315] EXPR var_425_arg_0 ? var_425_arg_1 : var_425_arg_2 [L1315] SORT_2 var_425 = var_425_arg_0 ? var_425_arg_1 : var_425_arg_2; [L1316] SORT_1 var_426_arg_0 = var_423; [L1317] SORT_2 var_426_arg_1 = var_143; [L1318] SORT_2 var_426_arg_2 = var_425; [L1319] EXPR var_426_arg_0 ? var_426_arg_1 : var_426_arg_2 [L1319] SORT_2 var_426 = var_426_arg_0 ? var_426_arg_1 : var_426_arg_2; [L1320] SORT_1 var_427_arg_0 = var_421; [L1321] SORT_2 var_427_arg_1 = var_88; [L1322] SORT_2 var_427_arg_2 = var_426; [L1323] EXPR var_427_arg_0 ? var_427_arg_1 : var_427_arg_2 [L1323] SORT_2 var_427 = var_427_arg_0 ? var_427_arg_1 : var_427_arg_2; [L1324] SORT_1 var_428_arg_0 = var_420; [L1325] SORT_2 var_428_arg_1 = var_88; [L1326] SORT_2 var_428_arg_2 = var_427; [L1327] EXPR var_428_arg_0 ? var_428_arg_1 : var_428_arg_2 [L1327] SORT_2 var_428 = var_428_arg_0 ? var_428_arg_1 : var_428_arg_2; [L1328] SORT_2 next_429_arg_1 = var_428; [L1329] SORT_1 var_430_arg_0 = var_107; [L1330] SORT_1 var_430_arg_1 = input_279; [L1331] SORT_1 var_430 = var_430_arg_0 & var_430_arg_1; [L1332] var_430 = var_430 & mask_SORT_1 [L1333] SORT_1 var_431_arg_0 = var_107; [L1334] SORT_1 var_431_arg_1 = input_92; [L1335] SORT_1 var_431 = var_431_arg_0 & var_431_arg_1; [L1336] var_431 = var_431 & mask_SORT_1 [L1337] SORT_2 var_432_arg_0 = var_202; [L1338] SORT_2 var_432_arg_1 = var_83; [L1339] SORT_1 var_432 = var_432_arg_0 == var_432_arg_1; [L1340] SORT_1 var_433_arg_0 = var_432; [L1341] SORT_1 var_433_arg_1 = input_281; [L1342] SORT_1 var_433 = var_433_arg_0 & var_433_arg_1; [L1343] var_433 = var_433 & mask_SORT_1 [L1344] SORT_1 var_434_arg_0 = input_147; [L1345] SORT_1 var_434_arg_1 = var_432; [L1346] SORT_1 var_434 = var_434_arg_0 & var_434_arg_1; [L1347] var_434 = var_434 & mask_SORT_1 [L1348] SORT_1 var_435_arg_0 = var_434; [L1349] SORT_2 var_435_arg_1 = var_292; [L1350] SORT_2 var_435_arg_2 = state_54; [L1351] EXPR var_435_arg_0 ? var_435_arg_1 : var_435_arg_2 [L1351] SORT_2 var_435 = var_435_arg_0 ? var_435_arg_1 : var_435_arg_2; [L1352] SORT_1 var_436_arg_0 = var_433; [L1353] SORT_2 var_436_arg_1 = var_143; [L1354] SORT_2 var_436_arg_2 = var_435; [L1355] EXPR var_436_arg_0 ? var_436_arg_1 : var_436_arg_2 [L1355] SORT_2 var_436 = var_436_arg_0 ? var_436_arg_1 : var_436_arg_2; [L1356] SORT_1 var_437_arg_0 = var_431; [L1357] SORT_2 var_437_arg_1 = var_88; [L1358] SORT_2 var_437_arg_2 = var_436; [L1359] EXPR var_437_arg_0 ? var_437_arg_1 : var_437_arg_2 [L1359] SORT_2 var_437 = var_437_arg_0 ? var_437_arg_1 : var_437_arg_2; [L1360] SORT_1 var_438_arg_0 = var_430; [L1361] SORT_2 var_438_arg_1 = var_88; [L1362] SORT_2 var_438_arg_2 = var_437; [L1363] EXPR var_438_arg_0 ? var_438_arg_1 : var_438_arg_2 [L1363] SORT_2 var_438 = var_438_arg_0 ? var_438_arg_1 : var_438_arg_2; [L1364] SORT_2 next_439_arg_1 = var_438; [L1365] SORT_1 var_440_arg_0 = var_109; [L1366] SORT_1 var_440_arg_1 = input_279; [L1367] SORT_1 var_440 = var_440_arg_0 & var_440_arg_1; [L1368] var_440 = var_440 & mask_SORT_1 [L1369] SORT_1 var_441_arg_0 = var_109; [L1370] SORT_1 var_441_arg_1 = input_92; [L1371] SORT_1 var_441 = var_441_arg_0 & var_441_arg_1; [L1372] var_441 = var_441 & mask_SORT_1 [L1373] SORT_2 var_442_arg_0 = var_201; [L1374] SORT_2 var_442_arg_1 = var_83; [L1375] SORT_1 var_442 = var_442_arg_0 == var_442_arg_1; [L1376] SORT_1 var_443_arg_0 = var_442; [L1377] SORT_1 var_443_arg_1 = input_281; [L1378] SORT_1 var_443 = var_443_arg_0 & var_443_arg_1; [L1379] var_443 = var_443 & mask_SORT_1 [L1380] SORT_1 var_444_arg_0 = input_147; [L1381] SORT_1 var_444_arg_1 = var_442; [L1382] SORT_1 var_444 = var_444_arg_0 & var_444_arg_1; [L1383] var_444 = var_444 & mask_SORT_1 [L1384] SORT_1 var_445_arg_0 = var_444; [L1385] SORT_2 var_445_arg_1 = var_292; [L1386] SORT_2 var_445_arg_2 = state_56; [L1387] EXPR var_445_arg_0 ? var_445_arg_1 : var_445_arg_2 [L1387] SORT_2 var_445 = var_445_arg_0 ? var_445_arg_1 : var_445_arg_2; [L1388] SORT_1 var_446_arg_0 = var_443; [L1389] SORT_2 var_446_arg_1 = var_143; [L1390] SORT_2 var_446_arg_2 = var_445; [L1391] EXPR var_446_arg_0 ? var_446_arg_1 : var_446_arg_2 [L1391] SORT_2 var_446 = var_446_arg_0 ? var_446_arg_1 : var_446_arg_2; [L1392] SORT_1 var_447_arg_0 = var_441; [L1393] SORT_2 var_447_arg_1 = var_88; [L1394] SORT_2 var_447_arg_2 = var_446; [L1395] EXPR var_447_arg_0 ? var_447_arg_1 : var_447_arg_2 [L1395] SORT_2 var_447 = var_447_arg_0 ? var_447_arg_1 : var_447_arg_2; [L1396] SORT_1 var_448_arg_0 = var_440; [L1397] SORT_2 var_448_arg_1 = var_88; [L1398] SORT_2 var_448_arg_2 = var_447; [L1399] EXPR var_448_arg_0 ? var_448_arg_1 : var_448_arg_2 [L1399] SORT_2 var_448 = var_448_arg_0 ? var_448_arg_1 : var_448_arg_2; [L1400] SORT_2 next_449_arg_1 = var_448; [L1401] SORT_1 var_450_arg_0 = var_111; [L1402] SORT_1 var_450_arg_1 = input_279; [L1403] SORT_1 var_450 = var_450_arg_0 & var_450_arg_1; [L1404] var_450 = var_450 & mask_SORT_1 [L1405] SORT_1 var_451_arg_0 = var_111; [L1406] SORT_1 var_451_arg_1 = input_92; [L1407] SORT_1 var_451 = var_451_arg_0 & var_451_arg_1; [L1408] var_451 = var_451 & mask_SORT_1 [L1409] SORT_2 var_452_arg_0 = var_186; [L1410] SORT_2 var_452_arg_1 = var_83; [L1411] SORT_1 var_452 = var_452_arg_0 == var_452_arg_1; [L1412] SORT_1 var_453_arg_0 = var_452; [L1413] SORT_1 var_453_arg_1 = input_281; [L1414] SORT_1 var_453 = var_453_arg_0 & var_453_arg_1; [L1415] var_453 = var_453 & mask_SORT_1 [L1416] SORT_1 var_454_arg_0 = input_147; [L1417] SORT_1 var_454_arg_1 = var_452; [L1418] SORT_1 var_454 = var_454_arg_0 & var_454_arg_1; [L1419] var_454 = var_454 & mask_SORT_1 [L1420] SORT_1 var_455_arg_0 = var_454; [L1421] SORT_2 var_455_arg_1 = var_292; [L1422] SORT_2 var_455_arg_2 = state_58; [L1423] EXPR var_455_arg_0 ? var_455_arg_1 : var_455_arg_2 [L1423] SORT_2 var_455 = var_455_arg_0 ? var_455_arg_1 : var_455_arg_2; [L1424] SORT_1 var_456_arg_0 = var_453; [L1425] SORT_2 var_456_arg_1 = var_143; [L1426] SORT_2 var_456_arg_2 = var_455; [L1427] EXPR var_456_arg_0 ? var_456_arg_1 : var_456_arg_2 [L1427] SORT_2 var_456 = var_456_arg_0 ? var_456_arg_1 : var_456_arg_2; [L1428] SORT_1 var_457_arg_0 = var_451; [L1429] SORT_2 var_457_arg_1 = var_88; [L1430] SORT_2 var_457_arg_2 = var_456; [L1431] EXPR var_457_arg_0 ? var_457_arg_1 : var_457_arg_2 [L1431] SORT_2 var_457 = var_457_arg_0 ? var_457_arg_1 : var_457_arg_2; [L1432] SORT_1 var_458_arg_0 = var_450; [L1433] SORT_2 var_458_arg_1 = var_88; [L1434] SORT_2 var_458_arg_2 = var_457; [L1435] EXPR var_458_arg_0 ? var_458_arg_1 : var_458_arg_2 [L1435] SORT_2 var_458 = var_458_arg_0 ? var_458_arg_1 : var_458_arg_2; [L1436] SORT_2 next_459_arg_1 = var_458; [L1437] SORT_1 var_460_arg_0 = var_113; [L1438] SORT_1 var_460_arg_1 = input_279; [L1439] SORT_1 var_460 = var_460_arg_0 & var_460_arg_1; [L1440] var_460 = var_460 & mask_SORT_1 [L1441] SORT_1 var_461_arg_0 = var_113; [L1442] SORT_1 var_461_arg_1 = input_92; [L1443] SORT_1 var_461 = var_461_arg_0 & var_461_arg_1; [L1444] var_461 = var_461 & mask_SORT_1 [L1445] SORT_2 var_462_arg_0 = var_171; [L1446] SORT_2 var_462_arg_1 = var_83; [L1447] SORT_1 var_462 = var_462_arg_0 == var_462_arg_1; [L1448] SORT_1 var_463_arg_0 = var_462; [L1449] SORT_1 var_463_arg_1 = input_281; [L1450] SORT_1 var_463 = var_463_arg_0 & var_463_arg_1; [L1451] var_463 = var_463 & mask_SORT_1 [L1452] SORT_1 var_464_arg_0 = input_147; [L1453] SORT_1 var_464_arg_1 = var_462; [L1454] SORT_1 var_464 = var_464_arg_0 & var_464_arg_1; [L1455] var_464 = var_464 & mask_SORT_1 [L1456] SORT_1 var_465_arg_0 = var_464; [L1457] SORT_2 var_465_arg_1 = var_292; [L1458] SORT_2 var_465_arg_2 = state_60; [L1459] EXPR var_465_arg_0 ? var_465_arg_1 : var_465_arg_2 [L1459] SORT_2 var_465 = var_465_arg_0 ? var_465_arg_1 : var_465_arg_2; [L1460] SORT_1 var_466_arg_0 = var_463; [L1461] SORT_2 var_466_arg_1 = var_143; [L1462] SORT_2 var_466_arg_2 = var_465; [L1463] EXPR var_466_arg_0 ? var_466_arg_1 : var_466_arg_2 [L1463] SORT_2 var_466 = var_466_arg_0 ? var_466_arg_1 : var_466_arg_2; [L1464] SORT_1 var_467_arg_0 = var_461; [L1465] SORT_2 var_467_arg_1 = var_88; [L1466] SORT_2 var_467_arg_2 = var_466; [L1467] EXPR var_467_arg_0 ? var_467_arg_1 : var_467_arg_2 [L1467] SORT_2 var_467 = var_467_arg_0 ? var_467_arg_1 : var_467_arg_2; [L1468] SORT_1 var_468_arg_0 = var_460; [L1469] SORT_2 var_468_arg_1 = var_88; [L1470] SORT_2 var_468_arg_2 = var_467; [L1471] EXPR var_468_arg_0 ? var_468_arg_1 : var_468_arg_2 [L1471] SORT_2 var_468 = var_468_arg_0 ? var_468_arg_1 : var_468_arg_2; [L1472] SORT_2 next_469_arg_1 = var_468; [L1473] SORT_4 var_470_arg_0 = var_258; [L1474] SORT_4 var_470_arg_1 = var_98; [L1475] SORT_1 var_470 = var_470_arg_0 == var_470_arg_1; [L1476] SORT_1 var_471_arg_0 = var_470; [L1477] SORT_1 var_471_arg_1 = input_279; [L1478] SORT_1 var_471 = var_471_arg_0 & var_471_arg_1; [L1479] var_471 = var_471 & mask_SORT_1 [L1480] SORT_1 var_472_arg_0 = var_470; [L1481] SORT_1 var_472_arg_1 = input_92; [L1482] SORT_1 var_472 = var_472_arg_0 & var_472_arg_1; [L1483] var_472 = var_472 & mask_SORT_1 [L1484] SORT_1 var_473_arg_0 = var_84; [L1485] SORT_1 var_473_arg_1 = input_281; [L1486] SORT_1 var_473 = var_473_arg_0 & var_473_arg_1; [L1487] var_473 = var_473 & mask_SORT_1 [L1488] SORT_1 var_474_arg_0 = input_147; [L1489] SORT_1 var_474_arg_1 = var_84; [L1490] SORT_1 var_474 = var_474_arg_0 & var_474_arg_1; [L1491] var_474 = var_474 & mask_SORT_1 [L1492] SORT_1 var_475_arg_0 = var_474; [L1493] SORT_2 var_475_arg_1 = var_292; [L1494] SORT_2 var_475_arg_2 = state_62; [L1495] EXPR var_475_arg_0 ? var_475_arg_1 : var_475_arg_2 [L1495] SORT_2 var_475 = var_475_arg_0 ? var_475_arg_1 : var_475_arg_2; [L1496] SORT_1 var_476_arg_0 = var_473; [L1497] SORT_2 var_476_arg_1 = var_143; [L1498] SORT_2 var_476_arg_2 = var_475; [L1499] EXPR var_476_arg_0 ? var_476_arg_1 : var_476_arg_2 [L1499] SORT_2 var_476 = var_476_arg_0 ? var_476_arg_1 : var_476_arg_2; [L1500] SORT_1 var_477_arg_0 = var_472; [L1501] SORT_2 var_477_arg_1 = var_88; [L1502] SORT_2 var_477_arg_2 = var_476; [L1503] EXPR var_477_arg_0 ? var_477_arg_1 : var_477_arg_2 [L1503] SORT_2 var_477 = var_477_arg_0 ? var_477_arg_1 : var_477_arg_2; [L1504] SORT_1 var_478_arg_0 = var_471; [L1505] SORT_2 var_478_arg_1 = var_88; [L1506] SORT_2 var_478_arg_2 = var_477; [L1507] EXPR var_478_arg_0 ? var_478_arg_1 : var_478_arg_2 [L1507] SORT_2 var_478 = var_478_arg_0 ? var_478_arg_1 : var_478_arg_2; [L1508] SORT_2 next_479_arg_1 = var_478; [L1509] SORT_4 var_480_arg_0 = var_98; [L1510] SORT_2 var_480 = var_480_arg_0 >> 0; [L1511] SORT_4 var_481_arg_0 = var_97; [L1512] SORT_4 var_481_arg_1 = var_96; [L1513] SORT_4 var_481 = var_481_arg_0 + var_481_arg_1; [L1514] SORT_4 var_482_arg_0 = var_481; [L1515] SORT_2 var_482 = var_482_arg_0 >> 0; [L1516] SORT_1 var_483_arg_0 = input_147; [L1517] SORT_2 var_483_arg_1 = var_482; [L1518] SORT_2 var_483_arg_2 = var_83; [L1519] EXPR var_483_arg_0 ? var_483_arg_1 : var_483_arg_2 [L1519] SORT_2 var_483 = var_483_arg_0 ? var_483_arg_1 : var_483_arg_2; [L1520] SORT_1 var_484_arg_0 = input_281; [L1521] SORT_2 var_484_arg_1 = var_482; [L1522] SORT_2 var_484_arg_2 = var_483; [L1523] EXPR var_484_arg_0 ? var_484_arg_1 : var_484_arg_2 [L1523] SORT_2 var_484 = var_484_arg_0 ? var_484_arg_1 : var_484_arg_2; [L1524] SORT_1 var_485_arg_0 = input_92; [L1525] SORT_2 var_485_arg_1 = var_480; [L1526] SORT_2 var_485_arg_2 = var_484; [L1527] EXPR var_485_arg_0 ? var_485_arg_1 : var_485_arg_2 [L1527] SORT_2 var_485 = var_485_arg_0 ? var_485_arg_1 : var_485_arg_2; [L1528] SORT_1 var_486_arg_0 = input_279; [L1529] SORT_2 var_486_arg_1 = var_480; [L1530] SORT_2 var_486_arg_2 = var_485; [L1531] EXPR var_486_arg_0 ? var_486_arg_1 : var_486_arg_2 [L1531] SORT_2 var_486 = var_486_arg_0 ? var_486_arg_1 : var_486_arg_2; [L1532] SORT_2 var_487_arg_0 = var_82; [L1533] SORT_2 var_487_arg_1 = var_486; [L1534] SORT_2 var_487 = var_487_arg_0 ^ var_487_arg_1; [L1535] SORT_2 next_488_arg_1 = var_487; [L1536] SORT_1 next_489_arg_1 = state_67; [L1537] SORT_1 next_490_arg_1 = state_69; [L1538] SORT_1 next_491_arg_1 = state_71; [L1539] SORT_1 next_492_arg_1 = state_73; [L1540] SORT_1 next_493_arg_1 = state_75; [L1541] SORT_1 next_494_arg_1 = state_77; [L1542] SORT_3 var_495_arg_0 = var_95; [L1543] SORT_2 var_495_arg_1 = var_143; [L1544] SORT_4 var_495 = ((SORT_4)var_495_arg_0 << 8) | var_495_arg_1; [L1545] var_495 = var_495 & mask_SORT_4 [L1546] SORT_3 var_496_arg_0 = var_95; [L1547] SORT_2 var_496_arg_1 = var_292; [L1548] SORT_4 var_496 = ((SORT_4)var_496_arg_0 << 8) | var_496_arg_1; [L1549] var_496 = var_496 & mask_SORT_4 [L1550] SORT_4 var_497_arg_0 = var_495; [L1551] SORT_4 var_497_arg_1 = var_496; [L1552] SORT_1 var_497 = var_497_arg_0 <= var_497_arg_1; [L1553] SORT_1 var_498_arg_0 = ~state_67; [L1554] var_498_arg_0 = var_498_arg_0 & mask_SORT_1 [L1555] SORT_1 var_498_arg_1 = ~var_497; [L1556] var_498_arg_1 = var_498_arg_1 & mask_SORT_1 [L1557] SORT_1 var_498 = var_498_arg_0 & var_498_arg_1; [L1558] SORT_1 var_499_arg_0 = ~input_149; [L1559] var_499_arg_0 = var_499_arg_0 & mask_SORT_1 [L1560] SORT_1 var_499_arg_1 = var_498; [L1561] SORT_1 var_499 = var_499_arg_0 | var_499_arg_1; [L1562] SORT_3 var_500_arg_0 = var_95; [L1563] SORT_2 var_500_arg_1 = var_121; [L1564] SORT_4 var_500 = ((SORT_4)var_500_arg_0 << 8) | var_500_arg_1; [L1565] var_500 = var_500 & mask_SORT_4 [L1566] SORT_4 var_501_arg_0 = var_500; [L1567] SORT_4 var_501_arg_1 = var_496; [L1568] SORT_1 var_501 = var_501_arg_0 <= var_501_arg_1; [L1569] SORT_1 var_502_arg_0 = ~state_69; [L1570] var_502_arg_0 = var_502_arg_0 & mask_SORT_1 [L1571] SORT_1 var_502_arg_1 = ~var_501; [L1572] var_502_arg_1 = var_502_arg_1 & mask_SORT_1 [L1573] SORT_1 var_502 = var_502_arg_0 & var_502_arg_1; [L1574] SORT_1 var_503_arg_0 = ~input_147; [L1575] var_503_arg_0 = var_503_arg_0 & mask_SORT_1 [L1576] SORT_1 var_503_arg_1 = var_502; [L1577] SORT_1 var_503 = var_503_arg_0 | var_503_arg_1; [L1578] SORT_1 var_504_arg_0 = var_499; [L1579] SORT_1 var_504_arg_1 = var_503; [L1580] SORT_1 var_504 = var_504_arg_0 & var_504_arg_1; [L1581] SORT_4 var_505_arg_0 = var_496; [L1582] SORT_4 var_505_arg_1 = var_495; [L1583] SORT_1 var_505 = var_505_arg_0 <= var_505_arg_1; [L1584] SORT_1 var_506_arg_0 = ~state_71; [L1585] var_506_arg_0 = var_506_arg_0 & mask_SORT_1 [L1586] SORT_1 var_506_arg_1 = ~var_505; [L1587] var_506_arg_1 = var_506_arg_1 & mask_SORT_1 [L1588] SORT_1 var_506 = var_506_arg_0 & var_506_arg_1; [L1589] SORT_1 var_507_arg_0 = ~input_122; [L1590] var_507_arg_0 = var_507_arg_0 & mask_SORT_1 [L1591] SORT_1 var_507_arg_1 = var_506; [L1592] SORT_1 var_507 = var_507_arg_0 | var_507_arg_1; [L1593] SORT_1 var_508_arg_0 = var_504; [L1594] SORT_1 var_508_arg_1 = var_507; [L1595] SORT_1 var_508 = var_508_arg_0 & var_508_arg_1; [L1596] SORT_4 var_509_arg_0 = var_500; [L1597] SORT_4 var_509_arg_1 = var_495; [L1598] SORT_1 var_509 = var_509_arg_0 <= var_509_arg_1; [L1599] SORT_1 var_510_arg_0 = ~state_73; [L1600] var_510_arg_0 = var_510_arg_0 & mask_SORT_1 [L1601] SORT_1 var_510_arg_1 = ~var_509; [L1602] var_510_arg_1 = var_510_arg_1 & mask_SORT_1 [L1603] SORT_1 var_510 = var_510_arg_0 & var_510_arg_1; [L1604] SORT_1 var_511_arg_0 = ~input_281; [L1605] var_511_arg_0 = var_511_arg_0 & mask_SORT_1 [L1606] SORT_1 var_511_arg_1 = var_510; [L1607] SORT_1 var_511 = var_511_arg_0 | var_511_arg_1; [L1608] SORT_1 var_512_arg_0 = var_508; [L1609] SORT_1 var_512_arg_1 = var_511; [L1610] SORT_1 var_512 = var_512_arg_0 & var_512_arg_1; [L1611] SORT_4 var_513_arg_0 = var_496; [L1612] SORT_4 var_513_arg_1 = var_500; [L1613] SORT_1 var_513 = var_513_arg_0 <= var_513_arg_1; [L1614] SORT_1 var_514_arg_0 = ~state_75; [L1615] var_514_arg_0 = var_514_arg_0 & mask_SORT_1 [L1616] SORT_1 var_514_arg_1 = ~var_513; [L1617] var_514_arg_1 = var_514_arg_1 & mask_SORT_1 [L1618] SORT_1 var_514 = var_514_arg_0 & var_514_arg_1; [L1619] SORT_1 var_515_arg_0 = ~input_92; [L1620] var_515_arg_0 = var_515_arg_0 & mask_SORT_1 [L1621] SORT_1 var_515_arg_1 = var_514; [L1622] SORT_1 var_515 = var_515_arg_0 | var_515_arg_1; [L1623] SORT_1 var_516_arg_0 = var_512; [L1624] SORT_1 var_516_arg_1 = var_515; [L1625] SORT_1 var_516 = var_516_arg_0 & var_516_arg_1; [L1626] SORT_4 var_517_arg_0 = var_495; [L1627] SORT_4 var_517_arg_1 = var_500; [L1628] SORT_1 var_517 = var_517_arg_0 <= var_517_arg_1; [L1629] SORT_1 var_518_arg_0 = ~state_77; [L1630] var_518_arg_0 = var_518_arg_0 & mask_SORT_1 [L1631] SORT_1 var_518_arg_1 = ~var_517; [L1632] var_518_arg_1 = var_518_arg_1 & mask_SORT_1 [L1633] SORT_1 var_518 = var_518_arg_0 & var_518_arg_1; [L1634] SORT_1 var_519_arg_0 = ~input_279; [L1635] var_519_arg_0 = var_519_arg_0 & mask_SORT_1 [L1636] SORT_1 var_519_arg_1 = var_518; [L1637] SORT_1 var_519 = var_519_arg_0 | var_519_arg_1; [L1638] SORT_1 var_520_arg_0 = var_516; [L1639] SORT_1 var_520_arg_1 = var_519; [L1640] SORT_1 var_520 = var_520_arg_0 & var_520_arg_1; [L1641] SORT_1 var_521_arg_0 = input_149; [L1642] SORT_1 var_521_arg_1 = input_147; [L1643] SORT_1 var_521 = var_521_arg_0 | var_521_arg_1; [L1644] SORT_1 var_522_arg_0 = input_122; [L1645] SORT_1 var_522_arg_1 = var_521; [L1646] SORT_1 var_522 = var_522_arg_0 | var_522_arg_1; [L1647] SORT_1 var_523_arg_0 = input_281; [L1648] SORT_1 var_523_arg_1 = var_522; [L1649] SORT_1 var_523 = var_523_arg_0 | var_523_arg_1; [L1650] SORT_1 var_524_arg_0 = input_92; [L1651] SORT_1 var_524_arg_1 = var_523; [L1652] SORT_1 var_524 = var_524_arg_0 | var_524_arg_1; [L1653] SORT_1 var_525_arg_0 = input_279; [L1654] SORT_1 var_525_arg_1 = var_524; [L1655] SORT_1 var_525 = var_525_arg_0 | var_525_arg_1; [L1656] SORT_1 var_526_arg_0 = var_520; [L1657] SORT_1 var_526_arg_1 = var_525; [L1658] SORT_1 var_526 = var_526_arg_0 & var_526_arg_1; [L1659] SORT_1 var_527_arg_0 = input_149; [L1660] SORT_1 var_527_arg_1 = input_147; [L1661] SORT_1 var_527 = var_527_arg_0 & var_527_arg_1; [L1662] SORT_1 var_528_arg_0 = input_122; [L1663] SORT_1 var_528_arg_1 = var_521; [L1664] SORT_1 var_528 = var_528_arg_0 & var_528_arg_1; [L1665] SORT_1 var_529_arg_0 = var_527; [L1666] SORT_1 var_529_arg_1 = var_528; [L1667] SORT_1 var_529 = var_529_arg_0 | var_529_arg_1; [L1668] SORT_1 var_530_arg_0 = input_281; [L1669] SORT_1 var_530_arg_1 = var_522; [L1670] SORT_1 var_530 = var_530_arg_0 & var_530_arg_1; [L1671] SORT_1 var_531_arg_0 = var_529; [L1672] SORT_1 var_531_arg_1 = var_530; [L1673] SORT_1 var_531 = var_531_arg_0 | var_531_arg_1; [L1674] SORT_1 var_532_arg_0 = input_92; [L1675] SORT_1 var_532_arg_1 = var_523; [L1676] SORT_1 var_532 = var_532_arg_0 & var_532_arg_1; [L1677] SORT_1 var_533_arg_0 = var_531; [L1678] SORT_1 var_533_arg_1 = var_532; [L1679] SORT_1 var_533 = var_533_arg_0 | var_533_arg_1; [L1680] SORT_1 var_534_arg_0 = input_279; [L1681] SORT_1 var_534_arg_1 = var_524; [L1682] SORT_1 var_534 = var_534_arg_0 & var_534_arg_1; [L1683] SORT_1 var_535_arg_0 = var_533; [L1684] SORT_1 var_535_arg_1 = var_534; [L1685] SORT_1 var_535 = var_535_arg_0 | var_535_arg_1; [L1686] SORT_1 var_536_arg_0 = var_526; [L1687] SORT_1 var_536_arg_1 = ~var_535; [L1688] var_536_arg_1 = var_536_arg_1 & mask_SORT_1 [L1689] SORT_1 var_536 = var_536_arg_0 & var_536_arg_1; [L1690] SORT_1 var_537_arg_0 = ~state_67; [L1691] var_537_arg_0 = var_537_arg_0 & mask_SORT_1 [L1692] SORT_1 var_537_arg_1 = ~state_69; [L1693] var_537_arg_1 = var_537_arg_1 & mask_SORT_1 [L1694] SORT_1 var_537 = var_537_arg_0 & var_537_arg_1; [L1695] SORT_1 var_538_arg_0 = var_537; [L1696] SORT_1 var_538_arg_1 = ~state_71; [L1697] var_538_arg_1 = var_538_arg_1 & mask_SORT_1 [L1698] SORT_1 var_538 = var_538_arg_0 & var_538_arg_1; [L1699] SORT_1 var_539_arg_0 = var_538; [L1700] SORT_1 var_539_arg_1 = ~state_73; [L1701] var_539_arg_1 = var_539_arg_1 & mask_SORT_1 [L1702] SORT_1 var_539 = var_539_arg_0 & var_539_arg_1; [L1703] SORT_1 var_540_arg_0 = var_539; [L1704] SORT_1 var_540_arg_1 = ~state_75; [L1705] var_540_arg_1 = var_540_arg_1 & mask_SORT_1 [L1706] SORT_1 var_540 = var_540_arg_0 & var_540_arg_1; [L1707] SORT_1 var_541_arg_0 = var_540; [L1708] SORT_1 var_541_arg_1 = ~state_77; [L1709] var_541_arg_1 = var_541_arg_1 & mask_SORT_1 [L1710] SORT_1 var_541 = var_541_arg_0 & var_541_arg_1; [L1711] SORT_1 var_542_arg_0 = var_536; [L1712] SORT_1 var_542_arg_1 = var_541; [L1713] SORT_1 var_542 = var_542_arg_0 & var_542_arg_1; [L1714] SORT_1 var_543_arg_0 = var_542; [L1715] SORT_1 var_543_arg_1 = ~state_79; [L1716] var_543_arg_1 = var_543_arg_1 & mask_SORT_1 [L1717] SORT_1 var_543 = var_543_arg_0 & var_543_arg_1; [L1718] SORT_1 next_544_arg_1 = ~var_543; [L1719] next_544_arg_1 = next_544_arg_1 & mask_SORT_1 [L1721] state_6 = next_157_arg_1 [L1722] state_8 = next_170_arg_1 [L1723] state_10 = next_185_arg_1 [L1724] state_12 = next_200_arg_1 [L1725] state_14 = next_215_arg_1 [L1726] state_16 = next_228_arg_1 [L1727] state_18 = next_241_arg_1 [L1728] state_20 = next_254_arg_1 [L1729] state_22 = next_268_arg_1 [L1730] state_24 = next_277_arg_1 [L1731] state_26 = next_298_arg_1 [L1732] state_28 = next_308_arg_1 [L1733] state_30 = next_318_arg_1 [L1734] state_32 = next_328_arg_1 [L1735] state_34 = next_338_arg_1 [L1736] state_36 = next_348_arg_1 [L1737] state_38 = next_358_arg_1 [L1738] state_40 = next_368_arg_1 [L1739] state_42 = next_379_arg_1 [L1740] state_44 = next_388_arg_1 [L1741] state_46 = next_399_arg_1 [L1742] state_48 = next_409_arg_1 [L1743] state_50 = next_419_arg_1 [L1744] state_52 = next_429_arg_1 [L1745] state_54 = next_439_arg_1 [L1746] state_56 = next_449_arg_1 [L1747] state_58 = next_459_arg_1 [L1748] state_60 = next_469_arg_1 [L1749] state_62 = next_479_arg_1 [L1750] state_64 = next_488_arg_1 [L1751] state_67 = next_489_arg_1 [L1752] state_69 = next_490_arg_1 [L1753] state_71 = next_491_arg_1 [L1754] state_73 = next_492_arg_1 [L1755] state_75 = next_493_arg_1 [L1756] state_77 = next_494_arg_1 [L1757] state_79 = next_544_arg_1 VAL [bad_86_arg_0=0, init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_9_arg_1=0, input_122=0, input_147=1, input_149=1, input_279=0, input_281=0, input_92=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, next_157_arg_1=100, next_170_arg_1=8, next_185_arg_1=7, next_200_arg_1=12, next_215_arg_1=5, next_228_arg_1=4, next_241_arg_1=6, next_254_arg_1=2, next_268_arg_1=0, next_277_arg_1=1, next_298_arg_1=7, next_308_arg_1=0, next_318_arg_1=0, next_328_arg_1=0, next_338_arg_1=0, next_348_arg_1=0, next_358_arg_1=0, next_368_arg_1=0, next_379_arg_1=0, next_388_arg_1=0, next_399_arg_1=100, next_409_arg_1=0, next_419_arg_1=0, next_429_arg_1=0, next_439_arg_1=0, next_449_arg_1=0, next_459_arg_1=0, next_469_arg_1=0, next_479_arg_1=0, next_488_arg_1=11, next_489_arg_1=0, next_490_arg_1=0, next_491_arg_1=0, next_492_arg_1=0, next_493_arg_1=0, next_494_arg_1=0, next_544_arg_1=0, state_10=7, state_12=12, state_14=5, state_16=4, state_18=6, state_20=2, state_22=0, state_24=1, state_26=7, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_46=100, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_58=0, state_6=100, state_60=0, state_62=0, state_64=11, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=8, var_100=100, var_100_arg_0=100, var_100_arg_1=0, var_101=0, var_101_arg_0=1, var_101_arg_1=0, var_102=2, var_103=0, var_103_arg_0=2, var_103_arg_1=0, var_104=3, var_105=0, var_105_arg_0=3, var_105_arg_1=0, var_106=4, var_107=0, var_107_arg_0=4, var_107_arg_1=0, var_108=5, var_109=0, var_109_arg_0=5, var_109_arg_1=0, var_110=6, var_111=0, var_111_arg_0=6, var_111_arg_1=0, var_112=7, var_113=0, var_113_arg_0=7, var_113_arg_1=0, var_114=0, var_114_arg_0=0, var_114_arg_1=0, var_114_arg_2=0, var_115=0, var_115_arg_0=0, var_115_arg_1=0, var_115_arg_2=0, var_116=0, var_116_arg_0=0, var_116_arg_1=0, var_116_arg_2=0, var_117=0, var_117_arg_0=0, var_117_arg_1=0, var_117_arg_2=0, var_118=0, var_118_arg_0=0, var_118_arg_1=0, var_118_arg_2=0, var_119=0, var_119_arg_0=0, var_119_arg_1=0, var_119_arg_2=0, var_120=0, var_120_arg_0=0, var_120_arg_1=0, var_120_arg_2=0, var_121=10, var_121_arg_0=1, var_121_arg_1=100, var_121_arg_2=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_124=1, var_124_arg_0=1, var_124_arg_1=0, var_125=1, var_125_arg_0=0, var_125_arg_1=1, var_126=0, var_126_arg_0=1, var_126_arg_1=1, var_127=1, var_127_arg_0=0, var_127_arg_1=0, var_128=100, var_128_arg_0=100, var_128_arg_1=0, var_129=0, var_129_arg_0=1, var_129_arg_1=0, var_130=0, var_130_arg_0=2, var_130_arg_1=0, var_131=0, var_131_arg_0=3, var_131_arg_1=0, var_132=0, var_132_arg_0=4, var_132_arg_1=0, var_133=0, var_133_arg_0=5, var_133_arg_1=0, var_134=0, var_134_arg_0=6, var_134_arg_1=0, var_135=0, var_135_arg_0=7, var_135_arg_1=0, var_136=0, var_136_arg_0=0, var_136_arg_1=0, var_136_arg_2=0, var_137=0, var_137_arg_0=0, var_137_arg_1=0, var_137_arg_2=0, var_138=0, var_138_arg_0=0, var_138_arg_1=0, var_138_arg_2=0, var_139=0, var_139_arg_0=0, var_139_arg_1=0, var_139_arg_2=0, var_140=0, var_140_arg_0=0, var_140_arg_1=0, var_140_arg_2=0, var_141=0, var_141_arg_0=0, var_141_arg_1=0, var_141_arg_2=0, var_142=0, var_142_arg_0=0, var_142_arg_1=0, var_142_arg_2=0, var_143=0, var_143_arg_0=1, var_143_arg_1=100, var_143_arg_2=0, var_144=4294967042, var_144_arg_0=0, var_144_arg_1=2, var_145=2, var_145_arg_0=4294967042, var_145_arg_1=1, var_146=0, var_146_arg_0=0, var_146_arg_1=2, var_148=0, var_148_arg_0=0, var_148_arg_1=1, var_150=0, var_150_arg_0=1, var_150_arg_1=0, var_151=100, var_151_arg_0=100, var_151_arg_1=0, var_152=100, var_152_arg_0=0, var_152_arg_1=0, var_152_arg_2=100, var_153=100, var_153_arg_0=0, var_153_arg_1=0, var_153_arg_2=100, var_154=100, var_154_arg_0=0, var_154_arg_1=0, var_154_arg_2=100, var_155=100, var_155_arg_0=0, var_155_arg_1=10, var_155_arg_2=100, var_156=100, var_156_arg_0=100, var_156_arg_1=100, var_158=0, var_158_arg_0=1, var_158_arg_1=2, var_159=0, var_159_arg_0=0, var_159_arg_1=0, var_160=0, var_160_arg_0=0, var_160_arg_1=0, var_161=0, var_161_arg_0=1, var_161_arg_1=2, var_162=0, var_162_arg_0=0, var_162_arg_1=1, var_163=0, var_163_arg_0=1, var_163_arg_1=0, var_164=8, var_164_arg_0=8, var_164_arg_1=0, var_165=8, var_165_arg_0=0, var_165_arg_1=0, var_165_arg_2=8, var_166=8, var_166_arg_0=0, var_166_arg_1=0, var_166_arg_2=8, var_167=8, var_167_arg_0=0, var_167_arg_1=0, var_167_arg_2=8, var_168=8, var_168_arg_0=0, var_168_arg_1=10, var_168_arg_2=8, var_169=8, var_169_arg_0=8, var_169_arg_1=8, var_171=7, var_172=2, var_173=1, var_173_arg_0=2, var_173_arg_1=2, var_174=0, var_174_arg_0=1, var_174_arg_1=0, var_175=0, var_175_arg_0=0, var_175_arg_1=1, var_176=1, var_176_arg_0=2, var_176_arg_1=2, var_177=1, var_177_arg_0=1, var_177_arg_1=1, var_178=1, var_178_arg_0=1, var_178_arg_1=1, var_179=7, var_179_arg_0=7, var_179_arg_1=0, var_180=0, var_180_arg_0=1, var_180_arg_1=0, var_180_arg_2=7, var_181=0, var_181_arg_0=1, var_181_arg_1=0, var_181_arg_2=0, var_182=0, var_182_arg_0=0, var_182_arg_1=0, var_182_arg_2=0, var_183=0, var_183_arg_0=0, var_183_arg_1=10, var_183_arg_2=0, var_184=7, var_184_arg_0=7, var_184_arg_1=0, var_186=6, var_187=3, var_188=0, var_188_arg_0=3, var_188_arg_1=2, var_189=0, var_189_arg_0=0, var_189_arg_1=0, var_190=0, var_190_arg_0=0, var_190_arg_1=0, var_191=0, var_191_arg_0=3, var_191_arg_1=2, var_192=0, var_192_arg_0=0, var_192_arg_1=1, var_193=0, var_193_arg_0=1, var_193_arg_1=0, var_194=6, var_194_arg_0=6, var_194_arg_1=0, var_195=6, var_195_arg_0=0, var_195_arg_1=0, var_195_arg_2=6, var_196=6, var_196_arg_0=0, var_196_arg_1=0, var_196_arg_2=6, var_197=6, var_197_arg_0=0, var_197_arg_1=0, var_197_arg_2=6, var_198=6, var_198_arg_0=0, var_198_arg_1=10, var_198_arg_2=6, var_199=12, var_199_arg_0=6, var_199_arg_1=6, var_201=5, var_202=4, var_203=0, var_203_arg_0=4, var_203_arg_1=2, var_204=0, var_204_arg_0=0, var_204_arg_1=0, var_205=0, var_205_arg_0=0, var_205_arg_1=0, var_206=0, var_206_arg_0=4, var_206_arg_1=2, var_207=0, var_207_arg_0=0, var_207_arg_1=1, var_208=0, var_208_arg_0=1, var_208_arg_1=0, var_209=5, var_209_arg_0=5, var_209_arg_1=0, var_210=5, var_210_arg_0=0, var_210_arg_1=0, var_210_arg_2=5, var_211=5, var_211_arg_0=0, var_211_arg_1=0, var_211_arg_2=5, var_212=5, var_212_arg_0=0, var_212_arg_1=0, var_212_arg_2=5, var_213=5, var_213_arg_0=0, var_213_arg_1=10, var_213_arg_2=5, var_214=5, var_214_arg_0=5, var_214_arg_1=5, var_216=0, var_216_arg_0=5, var_216_arg_1=2, var_217=0, var_217_arg_0=0, var_217_arg_1=0, var_218=0, var_218_arg_0=0, var_218_arg_1=0, var_219=0, var_219_arg_0=5, var_219_arg_1=2, var_220=0, var_220_arg_0=0, var_220_arg_1=1, var_221=0, var_221_arg_0=1, var_221_arg_1=0, var_222=4, var_222_arg_0=4, var_222_arg_1=0, var_223=4, var_223_arg_0=0, var_223_arg_1=0, var_223_arg_2=4, var_224=4, var_224_arg_0=0, var_224_arg_1=0, var_224_arg_2=4, var_225=4, var_225_arg_0=0, var_225_arg_1=0, var_225_arg_2=4, var_226=4, var_226_arg_0=0, var_226_arg_1=10, var_226_arg_2=4, var_227=4, var_227_arg_0=4, var_227_arg_1=4, var_229=0, var_229_arg_0=6, var_229_arg_1=2, var_230=0, var_230_arg_0=0, var_230_arg_1=0, var_231=0, var_231_arg_0=0, var_231_arg_1=0, var_232=0, var_232_arg_0=6, var_232_arg_1=2, var_233=0, var_233_arg_0=0, var_233_arg_1=1, var_234=0, var_234_arg_0=1, var_234_arg_1=0, var_235=3, var_235_arg_0=3, var_235_arg_1=0, var_236=3, var_236_arg_0=0, var_236_arg_1=0, var_236_arg_2=3, var_237=3, var_237_arg_0=0, var_237_arg_1=0, var_237_arg_2=3, var_238=3, var_238_arg_0=0, var_238_arg_1=0, var_238_arg_2=3, var_239=3, var_239_arg_0=0, var_239_arg_1=10, var_239_arg_2=3, var_240=6, var_240_arg_0=3, var_240_arg_1=3, var_242=0, var_242_arg_0=7, var_242_arg_1=2, var_243=0, var_243_arg_0=0, var_243_arg_1=0, var_244=0, var_244_arg_0=0, var_244_arg_1=0, var_245=0, var_245_arg_0=7, var_245_arg_1=2, var_246=0, var_246_arg_0=0, var_246_arg_1=1, var_247=0, var_247_arg_0=1, var_247_arg_1=0, var_248=2, var_248_arg_0=2, var_248_arg_1=0, var_249=2, var_249_arg_0=0, var_249_arg_1=0, var_249_arg_2=2, var_250=2, var_250_arg_0=0, var_250_arg_1=0, var_250_arg_2=2, var_251=2, var_251_arg_0=0, var_251_arg_1=0, var_251_arg_2=2, var_252=2, var_252_arg_0=0, var_252_arg_1=10, var_252_arg_2=2, var_253=2, var_253_arg_0=2, var_253_arg_1=2, var_255=0, var_255_arg_0=8, var_255_arg_1=2, var_256=0, var_256_arg_0=0, var_256_arg_1=0, var_257=0, var_257_arg_0=0, var_257_arg_1=0, var_258=8, var_259=0, var_259_arg_0=8, var_259_arg_1=2, var_260=0, var_260_arg_0=0, var_260_arg_1=1, var_261=0, var_261_arg_0=1, var_261_arg_1=0, var_262=1, var_262_arg_0=1, var_262_arg_1=0, var_263=1, var_263_arg_0=0, var_263_arg_1=0, var_263_arg_2=1, var_264=1, var_264_arg_0=0, var_264_arg_1=0, var_264_arg_2=1, var_265=1, var_265_arg_0=0, var_265_arg_1=0, var_265_arg_2=1, var_266=1, var_266_arg_0=0, var_266_arg_1=10, var_266_arg_2=1, var_267=0, var_267_arg_0=1, var_267_arg_1=1, var_269=4294967043, var_269_arg_0=1, var_269_arg_1=4294967042, var_270=3, var_270_arg_0=4294967043, var_271=2, var_271_arg_0=2, var_272=2, var_272_arg_0=1, var_272_arg_1=2, var_272_arg_2=2, var_273=2, var_273_arg_0=1, var_273_arg_1=2, var_273_arg_2=2, var_274=2, var_274_arg_0=0, var_274_arg_1=3, var_274_arg_2=2, var_275=2, var_275_arg_0=0, var_275_arg_1=3, var_275_arg_2=2, var_276=1, var_276_arg_0=9, var_276_arg_1=2, var_278=0, var_278_arg_0=0, var_278_arg_1=1, var_280=0, var_280_arg_0=0, var_280_arg_1=0, var_282=0, var_282_arg_0=1, var_282_arg_1=0, var_283=0, var_283_arg_0=1, var_283_arg_1=0, var_284=0, var_284_arg_0=1, var_284_arg_1=0, var_285=1, var_285_arg_0=0, var_285_arg_1=2, var_285_arg_2=1, var_286=1, var_286_arg_0=0, var_286_arg_1=3, var_286_arg_2=1, var_287=1, var_287_arg_0=0, var_287_arg_1=4, var_287_arg_2=1, var_288=1, var_288_arg_0=0, var_288_arg_1=5, var_288_arg_2=1, var_289=1, var_289_arg_0=0, var_289_arg_1=6, var_289_arg_2=1, var_290=7, var_290_arg_0=1, var_290_arg_1=7, var_290_arg_2=1, var_291=7, var_291_arg_0=0, var_291_arg_1=8, var_291_arg_2=7, var_292=0, var_292_arg_0=0, var_292_arg_1=100, var_292_arg_2=7, var_293=100, var_293_arg_0=0, var_293_arg_1=0, var_293_arg_2=100, var_294=100, var_294_arg_0=0, var_294_arg_1=0, var_294_arg_2=100, var_295=100, var_295_arg_0=0, var_295_arg_1=0, var_295_arg_2=100, var_296=100, var_296_arg_0=0, var_296_arg_1=10, var_296_arg_2=100, var_297=7, var_297_arg_0=100, var_297_arg_1=100, var_299=1, var_299_arg_0=1, var_299_arg_1=1, var_300=0, var_300_arg_0=1, var_300_arg_1=0, var_301=0, var_301_arg_0=0, var_301_arg_1=0, var_302=0, var_302_arg_0=0, var_302_arg_1=0, var_303=1, var_303_arg_0=1, var_303_arg_1=1, var_304=0, var_304_arg_0=1, var_304_arg_1=0, var_304_arg_2=0, var_305=0, var_305_arg_0=0, var_305_arg_1=0, var_305_arg_2=0, var_306=0, var_306_arg_0=0, var_306_arg_1=0, var_306_arg_2=0, var_307=0, var_307_arg_0=0, var_307_arg_1=10, var_307_arg_2=0, var_309=0, var_309_arg_0=2, var_309_arg_1=1, var_310=0, var_310_arg_0=0, var_310_arg_1=0, var_311=0, var_311_arg_0=0, var_311_arg_1=0, var_312=0, var_312_arg_0=0, var_312_arg_1=0, var_313=0, var_313_arg_0=1, var_313_arg_1=0, var_314=0, var_314_arg_0=0, var_314_arg_1=0, var_314_arg_2=0, var_315=0, var_315_arg_0=0, var_315_arg_1=0, var_315_arg_2=0, var_316=0, var_316_arg_0=0, var_316_arg_1=0, var_316_arg_2=0, var_317=0, var_317_arg_0=0, var_317_arg_1=10, var_317_arg_2=0, var_319=0, var_319_arg_0=3, var_319_arg_1=1, var_320=0, var_320_arg_0=0, var_320_arg_1=0, var_321=0, var_321_arg_0=0, var_321_arg_1=0, var_322=0, var_322_arg_0=0, var_322_arg_1=0, var_323=0, var_323_arg_0=1, var_323_arg_1=0, var_324=0, var_324_arg_0=0, var_324_arg_1=0, var_324_arg_2=0, var_325=0, var_325_arg_0=0, var_325_arg_1=0, var_325_arg_2=0, var_326=0, var_326_arg_0=0, var_326_arg_1=0, var_326_arg_2=0, var_327=0, var_327_arg_0=0, var_327_arg_1=10, var_327_arg_2=0, var_329=0, var_329_arg_0=4, var_329_arg_1=1, var_330=0, var_330_arg_0=0, var_330_arg_1=0, var_331=0, var_331_arg_0=0, var_331_arg_1=0, var_332=0, var_332_arg_0=0, var_332_arg_1=0, var_333=0, var_333_arg_0=1, var_333_arg_1=0, var_334=0, var_334_arg_0=0, var_334_arg_1=0, var_334_arg_2=0, var_335=0, var_335_arg_0=0, var_335_arg_1=0, var_335_arg_2=0, var_336=0, var_336_arg_0=0, var_336_arg_1=0, var_336_arg_2=0, var_337=0, var_337_arg_0=0, var_337_arg_1=10, var_337_arg_2=0, var_339=0, var_339_arg_0=5, var_339_arg_1=1, var_340=0, var_340_arg_0=0, var_340_arg_1=0, var_341=0, var_341_arg_0=0, var_341_arg_1=0, var_342=0, var_342_arg_0=0, var_342_arg_1=0, var_343=0, var_343_arg_0=1, var_343_arg_1=0, var_344=0, var_344_arg_0=0, var_344_arg_1=0, var_344_arg_2=0, var_345=0, var_345_arg_0=0, var_345_arg_1=0, var_345_arg_2=0, var_346=0, var_346_arg_0=0, var_346_arg_1=0, var_346_arg_2=0, var_347=0, var_347_arg_0=0, var_347_arg_1=10, var_347_arg_2=0, var_349=0, var_349_arg_0=6, var_349_arg_1=1, var_350=0, var_350_arg_0=0, var_350_arg_1=0, var_351=0, var_351_arg_0=0, var_351_arg_1=0, var_352=0, var_352_arg_0=0, var_352_arg_1=0, var_353=0, var_353_arg_0=1, var_353_arg_1=0, var_354=0, var_354_arg_0=0, var_354_arg_1=0, var_354_arg_2=0, var_355=0, var_355_arg_0=0, var_355_arg_1=0, var_355_arg_2=0, var_356=0, var_356_arg_0=0, var_356_arg_1=0, var_356_arg_2=0, var_357=0, var_357_arg_0=0, var_357_arg_1=10, var_357_arg_2=0, var_359=0, var_359_arg_0=7, var_359_arg_1=1, var_360=0, var_360_arg_0=0, var_360_arg_1=0, var_361=0, var_361_arg_0=0, var_361_arg_1=0, var_362=0, var_362_arg_0=0, var_362_arg_1=0, var_363=0, var_363_arg_0=1, var_363_arg_1=0, var_364=0, var_364_arg_0=0, var_364_arg_1=0, var_364_arg_2=0, var_365=0, var_365_arg_0=0, var_365_arg_1=0, var_365_arg_2=0, var_366=0, var_366_arg_0=0, var_366_arg_1=0, var_366_arg_2=0, var_367=0, var_367_arg_0=0, var_367_arg_1=10, var_367_arg_2=0, var_369=0, var_369_arg_0=8, var_369_arg_1=1, var_370=0, var_370_arg_0=0, var_370_arg_1=0, var_371=0, var_371_arg_0=8, var_371_arg_1=0, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_373=0, var_373_arg_0=0, var_373_arg_1=0, var_374=0, var_374_arg_0=1, var_374_arg_1=0, var_375=0, var_375_arg_0=0, var_375_arg_1=0, var_375_arg_2=0, var_376=0, var_376_arg_0=0, var_376_arg_1=0, var_376_arg_2=0, var_377=0, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=0, var_378=0, var_378_arg_0=0, var_378_arg_1=10, var_378_arg_2=0, var_380=2, var_380_arg_0=1, var_380_arg_1=1, var_381=2, var_381_arg_0=2, var_382=0, var_382_arg_0=0, var_383=2, var_383_arg_0=1, var_383_arg_1=2, var_383_arg_2=1, var_384=2, var_384_arg_0=0, var_384_arg_1=0, var_384_arg_2=2, var_385=2, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=2, var_386=2, var_386_arg_0=0, var_386_arg_1=2, var_386_arg_2=2, var_387=0, var_387_arg_0=1, var_387_arg_1=2, var_389=0, var_389_arg_0=1, var_389_arg_1=0, var_390=0, var_390_arg_0=1, var_390_arg_1=0, var_391=0, var_391_arg_0=0, var_391_arg_1=1, var_392=0, var_392_arg_0=0, var_392_arg_1=0, var_393=0, var_393_arg_0=1, var_393_arg_1=0, var_394=100, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=100, var_395=100, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=100, var_396=100, var_396_arg_0=0, var_396_arg_1=0, var_396_arg_2=100, var_397=100, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=100, var_398=100, var_398_arg_0=100, var_398_arg_1=100, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_402=1, var_402_arg_0=1, var_402_arg_1=1, var_403=0, var_403_arg_0=1, var_403_arg_1=0, var_404=1, var_404_arg_0=1, var_404_arg_1=1, var_405=0, var_405_arg_0=1, var_405_arg_1=0, var_405_arg_2=0, var_406=0, var_406_arg_0=0, var_406_arg_1=0, var_406_arg_2=0, var_407=0, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=0, var_408=0, var_408_arg_0=0, var_408_arg_1=0, var_408_arg_2=0, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_411=0, var_411_arg_0=0, var_411_arg_1=0, var_412=0, var_412_arg_0=2, var_412_arg_1=1, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_414=0, var_414_arg_0=1, var_414_arg_1=0, var_415=0, var_415_arg_0=0, var_415_arg_1=0, var_415_arg_2=0, var_416=0, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=0, var_417=0, var_417_arg_0=0, var_417_arg_1=0, var_417_arg_2=0, var_418=0, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=0, var_420=0, var_420_arg_0=0, var_420_arg_1=0, var_421=0, var_421_arg_0=0, var_421_arg_1=0, var_422=0, var_422_arg_0=3, var_422_arg_1=1, var_423=0, var_423_arg_0=0, var_423_arg_1=0, var_424=0, var_424_arg_0=1, var_424_arg_1=0, var_425=0, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=0, var_426=0, var_426_arg_0=0, var_426_arg_1=0, var_426_arg_2=0, var_427=0, var_427_arg_0=0, var_427_arg_1=0, var_427_arg_2=0, var_428=0, var_428_arg_0=0, var_428_arg_1=0, var_428_arg_2=0, var_430=0, var_430_arg_0=0, var_430_arg_1=0, var_431=0, var_431_arg_0=0, var_431_arg_1=0, var_432=0, var_432_arg_0=4, var_432_arg_1=1, var_433=0, var_433_arg_0=0, var_433_arg_1=0, var_434=0, var_434_arg_0=1, var_434_arg_1=0, var_435=0, var_435_arg_0=0, var_435_arg_1=0, var_435_arg_2=0, var_436=0, var_436_arg_0=0, var_436_arg_1=0, var_436_arg_2=0, var_437=0, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=0, var_438=0, var_438_arg_0=0, var_438_arg_1=0, var_438_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_441=0, var_441_arg_0=0, var_441_arg_1=0, var_442=0, var_442_arg_0=5, var_442_arg_1=1, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_444=0, var_444_arg_0=1, var_444_arg_1=0, var_445=0, var_445_arg_0=0, var_445_arg_1=0, var_445_arg_2=0, var_446=0, var_446_arg_0=0, var_446_arg_1=0, var_446_arg_2=0, var_447=0, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=0, var_448=0, var_448_arg_0=0, var_448_arg_1=0, var_448_arg_2=0, var_450=0, var_450_arg_0=0, var_450_arg_1=0, var_451=0, var_451_arg_0=0, var_451_arg_1=0, var_452=0, var_452_arg_0=6, var_452_arg_1=1, var_453=0, var_453_arg_0=0, var_453_arg_1=0, var_454=0, var_454_arg_0=1, var_454_arg_1=0, var_455=0, var_455_arg_0=0, var_455_arg_1=0, var_455_arg_2=0, var_456=0, var_456_arg_0=0, var_456_arg_1=0, var_456_arg_2=0, var_457=0, var_457_arg_0=0, var_457_arg_1=0, var_457_arg_2=0, var_458=0, var_458_arg_0=0, var_458_arg_1=0, var_458_arg_2=0, var_460=0, var_460_arg_0=0, var_460_arg_1=0, var_461=0, var_461_arg_0=0, var_461_arg_1=0, var_462=0, var_462_arg_0=7, var_462_arg_1=1, var_463=0, var_463_arg_0=0, var_463_arg_1=0, var_464=0, var_464_arg_0=1, var_464_arg_1=0, var_465=0, var_465_arg_0=0, var_465_arg_1=0, var_465_arg_2=0, var_466=0, var_466_arg_0=0, var_466_arg_1=0, var_466_arg_2=0, var_467=0, var_467_arg_0=0, var_467_arg_1=0, var_467_arg_2=0, var_468=0, var_468_arg_0=0, var_468_arg_1=0, var_468_arg_2=0, var_470=0, var_470_arg_0=8, var_470_arg_1=0, var_471=0, var_471_arg_0=0, var_471_arg_1=0, var_472=0, var_472_arg_0=0, var_472_arg_1=0, var_473=0, var_473_arg_0=0, var_473_arg_1=0, var_474=0, var_474_arg_0=1, var_474_arg_1=0, var_475=0, var_475_arg_0=0, var_475_arg_1=0, var_475_arg_2=0, var_476=0, var_476_arg_0=0, var_476_arg_1=0, var_476_arg_2=0, var_477=0, var_477_arg_0=0, var_477_arg_1=0, var_477_arg_2=0, var_478=0, var_478_arg_0=0, var_478_arg_1=0, var_478_arg_2=0, var_480=0, var_480_arg_0=0, var_481=2, var_481_arg_0=1, var_481_arg_1=1, var_482=2, var_482_arg_0=2, var_483=2, var_483_arg_0=1, var_483_arg_1=2, var_483_arg_2=1, var_484=2, var_484_arg_0=0, var_484_arg_1=2, var_484_arg_2=2, var_485=2, var_485_arg_0=0, var_485_arg_1=0, var_485_arg_2=2, var_486=2, var_486_arg_0=0, var_486_arg_1=0, var_486_arg_2=2, var_487=11, var_487_arg_0=1, var_487_arg_1=2, var_495=0, var_495_arg_0=0, var_495_arg_1=0, var_496=0, var_496_arg_0=0, var_496_arg_1=0, var_497=1, var_497_arg_0=0, var_497_arg_1=0, var_498=0, var_498_arg_0=0, var_498_arg_1=0, var_499=1, var_499_arg_0=1, var_499_arg_1=0, var_5=0, var_500=0, var_500_arg_0=0, var_500_arg_1=10, var_501=1, var_501_arg_0=0, var_501_arg_1=0, var_502=1, var_502_arg_0=1, var_502_arg_1=1, var_503=1, var_503_arg_0=1, var_503_arg_1=1, var_504=1, var_504_arg_0=1, var_504_arg_1=1, var_505=1, var_505_arg_0=0, var_505_arg_1=0, var_506=0, var_506_arg_0=1, var_506_arg_1=0, var_507=1, var_507_arg_0=1, var_507_arg_1=0, var_508=1, var_508_arg_0=1, var_508_arg_1=1, var_509=1, var_509_arg_0=0, var_509_arg_1=0, var_510=0, var_510_arg_0=1, var_510_arg_1=0, var_511=0, var_511_arg_0=0, var_511_arg_1=0, var_512=0, var_512_arg_0=1, var_512_arg_1=0, var_513=1, var_513_arg_0=0, var_513_arg_1=0, var_514=0, var_514_arg_0=0, var_514_arg_1=0, var_515=0, var_515_arg_0=0, var_515_arg_1=0, var_516=0, var_516_arg_0=0, var_516_arg_1=0, var_517=1, var_517_arg_0=0, var_517_arg_1=0, var_518=0, var_518_arg_0=0, var_518_arg_1=0, var_519=1, var_519_arg_0=1, var_519_arg_1=0, var_520=0, var_520_arg_0=0, var_520_arg_1=1, var_521=1, var_521_arg_0=1, var_521_arg_1=1, var_522=1, var_522_arg_0=0, var_522_arg_1=1, var_523=1, var_523_arg_0=0, var_523_arg_1=1, var_524=1, var_524_arg_0=0, var_524_arg_1=1, var_525=1, var_525_arg_0=0, var_525_arg_1=1, var_526=0, var_526_arg_0=0, var_526_arg_1=1, var_527=1, var_527_arg_0=1, var_527_arg_1=1, var_528=0, var_528_arg_0=0, var_528_arg_1=1, var_529=1, var_529_arg_0=1, var_529_arg_1=0, var_530=0, var_530_arg_0=0, var_530_arg_1=1, var_531=1, var_531_arg_0=1, var_531_arg_1=0, var_532=0, var_532_arg_0=0, var_532_arg_1=1, var_533=1, var_533_arg_0=1, var_533_arg_1=0, var_534=0, var_534_arg_0=0, var_534_arg_1=1, var_535=1, var_535_arg_0=1, var_535_arg_1=0, var_536=0, var_536_arg_0=0, var_536_arg_1=0, var_537=0, var_537_arg_0=1, var_537_arg_1=0, var_538=0, var_538_arg_0=0, var_538_arg_1=0, var_539=0, var_539_arg_0=0, var_539_arg_1=1, var_540=0, var_540_arg_0=0, var_540_arg_1=0, var_541=0, var_541_arg_0=0, var_541_arg_1=1, var_542=0, var_542_arg_0=0, var_542_arg_1=0, var_543=0, var_543_arg_0=0, var_543_arg_1=1, var_66=0, var_81=8, var_82=1, var_83=1, var_83_arg_0=1, var_83_arg_1=0, var_84=0, var_84_arg_0=8, var_84_arg_1=1, var_85=0, var_85_arg_0=0, var_85_arg_1=1, var_87=100, var_88=0, var_89=9, var_90=2, var_90_arg_0=9, var_90_arg_1=0, var_91=0, var_91_arg_0=0, var_91_arg_1=2, var_93=0, var_93_arg_0=0, var_93_arg_1=0, var_94=0, var_95=0, var_96=1, var_96_arg_0=0, var_96_arg_1=1, var_97=1, var_98=0, var_98_arg_0=1, var_98_arg_1=1, var_99=1, var_99_arg_0=0, var_99_arg_1=0] [L182] input_92 = __VERIFIER_nondet_uchar() [L183] input_92 = input_92 & mask_SORT_1 [L184] input_122 = __VERIFIER_nondet_uchar() [L185] input_122 = input_122 & mask_SORT_1 [L186] input_147 = __VERIFIER_nondet_uchar() [L187] input_147 = input_147 & mask_SORT_1 [L188] input_149 = __VERIFIER_nondet_uchar() [L189] input_149 = input_149 & mask_SORT_1 [L190] input_279 = __VERIFIER_nondet_uchar() [L191] input_279 = input_279 & mask_SORT_1 [L192] input_281 = __VERIFIER_nondet_uchar() [L193] input_281 = input_281 & mask_SORT_1 [L196] SORT_2 var_83_arg_0 = var_82; [L197] SORT_2 var_83_arg_1 = state_64; [L198] SORT_2 var_83 = var_83_arg_0 ^ var_83_arg_1; [L199] var_83 = var_83 & mask_SORT_2 [L200] SORT_2 var_84_arg_0 = var_81; [L201] SORT_2 var_84_arg_1 = var_83; [L202] SORT_1 var_84 = var_84_arg_0 == var_84_arg_1; [L203] SORT_1 var_85_arg_0 = var_84; [L204] SORT_1 var_85_arg_1 = ~state_79; [L205] var_85_arg_1 = var_85_arg_1 & mask_SORT_1 [L206] SORT_1 var_85 = var_85_arg_0 & var_85_arg_1; [L207] var_85 = var_85 & mask_SORT_1 [L208] SORT_1 bad_86_arg_0 = var_85; [L209] CALL __VERIFIER_assert(!(bad_86_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 508.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=1, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 300.5s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 02:21:34,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 356d4a12962a540140ebba68874ce6eceea0c4ac73970f06eb56d210b432d6ba --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:21:37,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:21:37,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:21:37,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:21:37,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:21:37,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:21:37,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:21:37,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:21:37,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:21:37,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:21:37,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:21:37,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:21:37,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:21:37,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:21:37,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:21:37,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:21:37,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:21:37,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:21:37,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:21:37,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:21:37,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:21:37,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:21:37,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:21:37,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:21:37,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:21:37,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:21:37,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:21:37,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:21:37,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:21:37,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:21:37,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:21:37,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:21:37,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:21:37,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:21:37,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:21:37,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:21:37,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:21:37,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:21:37,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:21:37,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:21:37,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:21:37,944 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 02:21:38,005 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:21:38,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:21:38,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:21:38,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:21:38,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:21:38,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:21:38,009 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:21:38,009 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:21:38,009 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:21:38,009 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:21:38,010 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:21:38,011 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:21:38,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:21:38,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:21:38,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:21:38,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:21:38,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:21:38,014 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:21:38,014 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 02:21:38,014 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 02:21:38,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:21:38,014 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:21:38,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:21:38,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:21:38,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 02:21:38,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:21:38,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:21:38,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:21:38,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:21:38,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:21:38,016 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 02:21:38,017 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 02:21:38,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:21:38,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:21:38,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 02:21:38,018 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 356d4a12962a540140ebba68874ce6eceea0c4ac73970f06eb56d210b432d6ba [2022-11-03 02:21:38,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:21:38,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:21:38,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:21:38,495 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:21:38,496 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:21:38,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c [2022-11-03 02:21:38,590 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/data/c72bf4aea/df499f45fa2e495e8e6834b1e113503a/FLAG28865845d [2022-11-03 02:21:39,474 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:21:39,475 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c [2022-11-03 02:21:39,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/data/c72bf4aea/df499f45fa2e495e8e6834b1e113503a/FLAG28865845d [2022-11-03 02:21:39,674 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/data/c72bf4aea/df499f45fa2e495e8e6834b1e113503a [2022-11-03 02:21:39,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:21:39,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:21:39,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:21:39,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:21:39,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:21:39,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:21:39" (1/1) ... [2022-11-03 02:21:39,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7884a6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:39, skipping insertion in model container [2022-11-03 02:21:39,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:21:39" (1/1) ... [2022-11-03 02:21:39,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:21:39,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:21:40,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c[1014,1027] [2022-11-03 02:21:40,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:21:40,467 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:21:40,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.1.prop1-func-interl.c[1014,1027] [2022-11-03 02:21:40,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:21:40,641 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:21:40,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40 WrapperNode [2022-11-03 02:21:40,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:21:40,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:21:40,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:21:40,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:21:40,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (1/1) ... [2022-11-03 02:21:40,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (1/1) ... [2022-11-03 02:21:40,791 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2352 [2022-11-03 02:21:40,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:21:40,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:21:40,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:21:40,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:21:40,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (1/1) ... [2022-11-03 02:21:40,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (1/1) ... [2022-11-03 02:21:40,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (1/1) ... [2022-11-03 02:21:40,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (1/1) ... [2022-11-03 02:21:40,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (1/1) ... [2022-11-03 02:21:40,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (1/1) ... [2022-11-03 02:21:40,949 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (1/1) ... [2022-11-03 02:21:40,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (1/1) ... [2022-11-03 02:21:40,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:21:40,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:21:40,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:21:40,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:21:40,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (1/1) ... [2022-11-03 02:21:41,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:21:41,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:41,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:21:41,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:21:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:21:41,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:21:41,612 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:21:41,614 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:21:43,659 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:21:43,670 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:21:43,671 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:21:43,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:21:43 BoogieIcfgContainer [2022-11-03 02:21:43,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:21:43,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:21:43,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:21:43,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:21:43,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:21:39" (1/3) ... [2022-11-03 02:21:43,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51183458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:21:43, skipping insertion in model container [2022-11-03 02:21:43,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:21:40" (2/3) ... [2022-11-03 02:21:43,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51183458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:21:43, skipping insertion in model container [2022-11-03 02:21:43,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:21:43" (3/3) ... [2022-11-03 02:21:43,682 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.hanoi.1.prop1-func-interl.c [2022-11-03 02:21:43,703 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:21:43,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:21:43,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:21:43,771 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5492ceb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:21:43,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:21:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 299 states, 297 states have (on average 1.4983164983164983) internal successors, (445), 298 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:43,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 02:21:43,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:43,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 02:21:43,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:43,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:43,792 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-03 02:21:43,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:21:43,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734121781] [2022-11-03 02:21:43,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:43,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:21:43,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:21:43,814 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:21:43,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 02:21:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:44,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:21:44,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:21:44,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:44,628 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:21:44,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734121781] [2022-11-03 02:21:44,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734121781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:44,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:44,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:21:44,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443434601] [2022-11-03 02:21:44,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:44,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:21:44,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:21:44,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:21:44,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:21:44,692 INFO L87 Difference]: Start difference. First operand has 299 states, 297 states have (on average 1.4983164983164983) internal successors, (445), 298 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:45,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:45,218 INFO L93 Difference]: Finished difference Result 884 states and 1326 transitions. [2022-11-03 02:21:45,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:21:45,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-03 02:21:45,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:45,249 INFO L225 Difference]: With dead ends: 884 [2022-11-03 02:21:45,253 INFO L226 Difference]: Without dead ends: 587 [2022-11-03 02:21:45,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:21:45,266 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 867 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:45,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1249 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:21:45,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-11-03 02:21:45,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 297. [2022-11-03 02:21:45,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.489864864864865) internal successors, (441), 296 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:45,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 441 transitions. [2022-11-03 02:21:45,360 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 441 transitions. Word has length 5 [2022-11-03 02:21:45,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:45,361 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 441 transitions. [2022-11-03 02:21:45,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:45,361 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 441 transitions. [2022-11-03 02:21:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:21:45,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:45,383 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:45,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:45,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:21:45,608 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:45,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:45,608 INFO L85 PathProgramCache]: Analyzing trace with hash -793396281, now seen corresponding path program 1 times [2022-11-03 02:21:45,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:21:45,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508438436] [2022-11-03 02:21:45,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:45,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:21:45,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:21:45,619 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:21:45,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 02:21:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:46,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:21:46,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:46,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:21:46,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:46,962 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:21:46,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508438436] [2022-11-03 02:21:46,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508438436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:46,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:46,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:21:46,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131101681] [2022-11-03 02:21:46,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:46,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:21:46,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:21:46,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:21:46,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:21:46,968 INFO L87 Difference]: Start difference. First operand 297 states and 441 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:47,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:47,444 INFO L93 Difference]: Finished difference Result 1172 states and 1747 transitions. [2022-11-03 02:21:47,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:21:47,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:21:47,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:47,449 INFO L225 Difference]: With dead ends: 1172 [2022-11-03 02:21:47,450 INFO L226 Difference]: Without dead ends: 879 [2022-11-03 02:21:47,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:21:47,453 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 1729 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:47,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 2530 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:21:47,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2022-11-03 02:21:47,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 299. [2022-11-03 02:21:47,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.4865771812080537) internal successors, (443), 298 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:47,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 443 transitions. [2022-11-03 02:21:47,478 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 443 transitions. Word has length 296 [2022-11-03 02:21:47,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:47,480 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 443 transitions. [2022-11-03 02:21:47,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:47,487 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 443 transitions. [2022-11-03 02:21:47,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:21:47,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:47,496 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:47,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:47,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:21:47,717 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:47,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:47,717 INFO L85 PathProgramCache]: Analyzing trace with hash 7535433, now seen corresponding path program 1 times [2022-11-03 02:21:47,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:21:47,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606890301] [2022-11-03 02:21:47,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:47,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:21:47,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:21:47,723 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:21:47,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 02:21:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:48,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:21:48,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:48,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:21:48,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:48,913 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:21:48,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606890301] [2022-11-03 02:21:48,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606890301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:48,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:48,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:21:48,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872713681] [2022-11-03 02:21:48,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:48,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:21:48,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:21:48,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:21:48,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:21:48,923 INFO L87 Difference]: Start difference. First operand 299 states and 443 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:49,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:49,461 INFO L93 Difference]: Finished difference Result 1176 states and 1750 transitions. [2022-11-03 02:21:49,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:21:49,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:21:49,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:49,466 INFO L225 Difference]: With dead ends: 1176 [2022-11-03 02:21:49,466 INFO L226 Difference]: Without dead ends: 883 [2022-11-03 02:21:49,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:21:49,468 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 2155 mSDsluCounter, 2958 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:49,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 3382 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:21:49,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-11-03 02:21:49,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 303. [2022-11-03 02:21:49,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.4834437086092715) internal successors, (448), 302 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:49,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 448 transitions. [2022-11-03 02:21:49,484 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 448 transitions. Word has length 296 [2022-11-03 02:21:49,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:49,485 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 448 transitions. [2022-11-03 02:21:49,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:49,485 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 448 transitions. [2022-11-03 02:21:49,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:21:49,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:49,491 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:49,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:49,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:21:49,715 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:49,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash -399488053, now seen corresponding path program 1 times [2022-11-03 02:21:49,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:21:49,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884297308] [2022-11-03 02:21:49,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:49,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:21:49,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:21:49,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:21:49,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 02:21:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:50,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:21:50,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:21:50,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:50,969 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:21:50,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884297308] [2022-11-03 02:21:50,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884297308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:50,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:50,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:21:50,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727681964] [2022-11-03 02:21:50,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:50,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:21:50,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:21:50,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:21:50,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:21:50,973 INFO L87 Difference]: Start difference. First operand 303 states and 448 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:51,490 INFO L93 Difference]: Finished difference Result 1176 states and 1749 transitions. [2022-11-03 02:21:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:21:51,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:21:51,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:51,494 INFO L225 Difference]: With dead ends: 1176 [2022-11-03 02:21:51,494 INFO L226 Difference]: Without dead ends: 883 [2022-11-03 02:21:51,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:21:51,496 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 2147 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2147 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:51,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2147 Valid, 3375 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:21:51,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-11-03 02:21:51,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 305. [2022-11-03 02:21:51,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 1.480263157894737) internal successors, (450), 304 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:51,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 450 transitions. [2022-11-03 02:21:51,509 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 450 transitions. Word has length 296 [2022-11-03 02:21:51,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:51,510 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 450 transitions. [2022-11-03 02:21:51,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:51,510 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 450 transitions. [2022-11-03 02:21:51,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:21:51,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:51,515 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:51,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:51,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:21:51,733 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:51,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:51,734 INFO L85 PathProgramCache]: Analyzing trace with hash 11261133, now seen corresponding path program 1 times [2022-11-03 02:21:51,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:21:51,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967121949] [2022-11-03 02:21:51,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:51,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:21:51,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:21:51,737 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:21:51,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 02:21:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:52,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:21:52,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:52,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:21:52,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:52,826 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:21:52,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967121949] [2022-11-03 02:21:52,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967121949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:52,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:52,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:21:52,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079326593] [2022-11-03 02:21:52,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:52,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:21:52,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:21:52,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:21:52,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:21:52,829 INFO L87 Difference]: Start difference. First operand 305 states and 450 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:53,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:53,323 INFO L93 Difference]: Finished difference Result 1176 states and 1748 transitions. [2022-11-03 02:21:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:21:53,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:21:53,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:53,327 INFO L225 Difference]: With dead ends: 1176 [2022-11-03 02:21:53,327 INFO L226 Difference]: Without dead ends: 883 [2022-11-03 02:21:53,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:21:53,328 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 2139 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:53,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 3368 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:21:53,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-11-03 02:21:53,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 307. [2022-11-03 02:21:53,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.477124183006536) internal successors, (452), 306 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:53,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 452 transitions. [2022-11-03 02:21:53,341 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 452 transitions. Word has length 296 [2022-11-03 02:21:53,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:53,341 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 452 transitions. [2022-11-03 02:21:53,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:53,342 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 452 transitions. [2022-11-03 02:21:53,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:21:53,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:53,347 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:53,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:53,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:21:53,572 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:53,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:53,573 INFO L85 PathProgramCache]: Analyzing trace with hash 2098837071, now seen corresponding path program 1 times [2022-11-03 02:21:53,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:21:53,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448625265] [2022-11-03 02:21:53,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:53,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:21:53,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:21:53,575 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:21:53,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 02:21:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:54,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:21:54,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:21:54,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:54,605 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:21:54,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448625265] [2022-11-03 02:21:54,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448625265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:54,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:54,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:21:54,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694325269] [2022-11-03 02:21:54,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:54,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:21:54,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:21:54,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:21:54,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:21:54,608 INFO L87 Difference]: Start difference. First operand 307 states and 452 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:55,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:55,128 INFO L93 Difference]: Finished difference Result 1176 states and 1747 transitions. [2022-11-03 02:21:55,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:21:55,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:21:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:55,133 INFO L225 Difference]: With dead ends: 1176 [2022-11-03 02:21:55,133 INFO L226 Difference]: Without dead ends: 883 [2022-11-03 02:21:55,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:21:55,135 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 2131 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2131 SdHoareTripleChecker+Valid, 3361 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:55,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2131 Valid, 3361 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:21:55,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-11-03 02:21:55,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 309. [2022-11-03 02:21:55,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.474025974025974) internal successors, (454), 308 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:55,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 454 transitions. [2022-11-03 02:21:55,153 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 454 transitions. Word has length 296 [2022-11-03 02:21:55,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:55,153 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 454 transitions. [2022-11-03 02:21:55,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:55,154 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 454 transitions. [2022-11-03 02:21:55,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:21:55,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:55,161 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:55,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:55,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:21:55,388 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:55,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:55,389 INFO L85 PathProgramCache]: Analyzing trace with hash 255201361, now seen corresponding path program 1 times [2022-11-03 02:21:55,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:21:55,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92154616] [2022-11-03 02:21:55,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:55,391 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:21:55,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:21:55,392 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:21:55,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 02:21:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:56,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:21:56,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:21:56,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:56,490 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:21:56,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92154616] [2022-11-03 02:21:56,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92154616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:56,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:56,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:21:56,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486693264] [2022-11-03 02:21:56,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:56,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:21:56,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:21:56,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:21:56,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:21:56,494 INFO L87 Difference]: Start difference. First operand 309 states and 454 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:56,948 INFO L93 Difference]: Finished difference Result 1176 states and 1746 transitions. [2022-11-03 02:21:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:21:56,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:21:56,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:56,952 INFO L225 Difference]: With dead ends: 1176 [2022-11-03 02:21:56,953 INFO L226 Difference]: Without dead ends: 883 [2022-11-03 02:21:56,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:21:56,955 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 2123 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2123 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:56,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2123 Valid, 3359 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:21:56,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-11-03 02:21:56,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 311. [2022-11-03 02:21:56,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.4709677419354839) internal successors, (456), 310 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:56,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 456 transitions. [2022-11-03 02:21:56,968 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 456 transitions. Word has length 296 [2022-11-03 02:21:56,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:56,968 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 456 transitions. [2022-11-03 02:21:56,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 456 transitions. [2022-11-03 02:21:56,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:21:56,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:56,971 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:56,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:57,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:21:57,183 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:57,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:57,183 INFO L85 PathProgramCache]: Analyzing trace with hash -381353261, now seen corresponding path program 1 times [2022-11-03 02:21:57,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:21:57,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110529902] [2022-11-03 02:21:57,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:57,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:21:57,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:21:57,188 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:21:57,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 02:21:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:58,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:21:58,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:58,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:21:58,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:58,539 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:21:58,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110529902] [2022-11-03 02:21:58,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110529902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:58,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:21:58,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:21:58,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866979622] [2022-11-03 02:21:58,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:58,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:21:58,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:21:58,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:21:58,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:21:58,542 INFO L87 Difference]: Start difference. First operand 311 states and 456 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:58,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:58,875 INFO L93 Difference]: Finished difference Result 1192 states and 1769 transitions. [2022-11-03 02:21:58,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:21:58,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:21:58,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:58,880 INFO L225 Difference]: With dead ends: 1192 [2022-11-03 02:21:58,880 INFO L226 Difference]: Without dead ends: 899 [2022-11-03 02:21:58,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:21:58,881 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 1708 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:58,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1708 Valid, 2554 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:21:58,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-11-03 02:21:58,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 317. [2022-11-03 02:21:58,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.4683544303797469) internal successors, (464), 316 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:58,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 464 transitions. [2022-11-03 02:21:58,903 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 464 transitions. Word has length 296 [2022-11-03 02:21:58,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:58,903 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 464 transitions. [2022-11-03 02:21:58,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:58,904 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 464 transitions. [2022-11-03 02:21:58,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:21:58,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:58,906 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:58,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:59,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:21:59,131 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:59,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:59,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1813282517, now seen corresponding path program 1 times [2022-11-03 02:21:59,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:21:59,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008988936] [2022-11-03 02:21:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:59,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:21:59,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:21:59,139 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:21:59,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 02:21:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:59,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:22:00,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:00,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:00,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:00,328 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:00,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008988936] [2022-11-03 02:22:00,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008988936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:00,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:00,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:22:00,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185456430] [2022-11-03 02:22:00,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:00,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:22:00,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:00,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:22:00,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:00,331 INFO L87 Difference]: Start difference. First operand 317 states and 464 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:00,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:00,646 INFO L93 Difference]: Finished difference Result 1192 states and 1768 transitions. [2022-11-03 02:22:00,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:00,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:00,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:00,651 INFO L225 Difference]: With dead ends: 1192 [2022-11-03 02:22:00,651 INFO L226 Difference]: Without dead ends: 899 [2022-11-03 02:22:00,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:22:00,653 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 1701 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:00,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 2550 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:22:00,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-11-03 02:22:00,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 319. [2022-11-03 02:22:00,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 318 states have (on average 1.4654088050314464) internal successors, (466), 318 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 466 transitions. [2022-11-03 02:22:00,668 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 466 transitions. Word has length 296 [2022-11-03 02:22:00,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:00,669 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 466 transitions. [2022-11-03 02:22:00,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:00,669 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 466 transitions. [2022-11-03 02:22:00,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:00,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:00,671 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:00,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:00,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:00,887 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:00,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:00,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1388899497, now seen corresponding path program 1 times [2022-11-03 02:22:00,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:00,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543480012] [2022-11-03 02:22:00,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:00,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:00,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:00,890 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:00,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 02:22:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:01,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:22:01,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:02,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:02,054 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:02,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543480012] [2022-11-03 02:22:02,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543480012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:02,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:02,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:22:02,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352408448] [2022-11-03 02:22:02,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:02,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:22:02,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:02,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:22:02,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:02,058 INFO L87 Difference]: Start difference. First operand 319 states and 466 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:02,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:02,407 INFO L93 Difference]: Finished difference Result 1192 states and 1767 transitions. [2022-11-03 02:22:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:02,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:02,412 INFO L225 Difference]: With dead ends: 1192 [2022-11-03 02:22:02,412 INFO L226 Difference]: Without dead ends: 899 [2022-11-03 02:22:02,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:22:02,414 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 1694 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:02,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 2546 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:22:02,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-11-03 02:22:02,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 321. [2022-11-03 02:22:02,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.4625) internal successors, (468), 320 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:02,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 468 transitions. [2022-11-03 02:22:02,429 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 468 transitions. Word has length 296 [2022-11-03 02:22:02,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:02,430 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 468 transitions. [2022-11-03 02:22:02,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:02,430 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 468 transitions. [2022-11-03 02:22:02,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:02,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:02,432 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:02,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:02,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:02,643 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:02,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:02,644 INFO L85 PathProgramCache]: Analyzing trace with hash -6758311, now seen corresponding path program 1 times [2022-11-03 02:22:02,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:02,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973074871] [2022-11-03 02:22:02,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:02,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:02,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:02,646 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:02,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 02:22:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:03,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:22:03,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:03,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:03,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:03,891 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:03,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973074871] [2022-11-03 02:22:03,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973074871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:03,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:03,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:22:03,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094954614] [2022-11-03 02:22:03,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:03,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:22:03,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:03,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:22:03,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:03,895 INFO L87 Difference]: Start difference. First operand 321 states and 468 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:04,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:04,246 INFO L93 Difference]: Finished difference Result 1192 states and 1766 transitions. [2022-11-03 02:22:04,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:04,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:04,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:04,252 INFO L225 Difference]: With dead ends: 1192 [2022-11-03 02:22:04,252 INFO L226 Difference]: Without dead ends: 899 [2022-11-03 02:22:04,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:22:04,254 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1687 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:04,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1687 Valid, 2542 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:22:04,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-11-03 02:22:04,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 323. [2022-11-03 02:22:04,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.4596273291925466) internal successors, (470), 322 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:04,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 470 transitions. [2022-11-03 02:22:04,268 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 470 transitions. Word has length 296 [2022-11-03 02:22:04,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:04,269 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 470 transitions. [2022-11-03 02:22:04,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:04,270 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 470 transitions. [2022-11-03 02:22:04,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:04,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:04,272 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:04,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:04,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:04,487 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:04,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:04,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1028782629, now seen corresponding path program 1 times [2022-11-03 02:22:04,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:04,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178810409] [2022-11-03 02:22:04,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:04,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:04,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:04,492 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:04,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 02:22:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:05,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:22:05,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:05,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:05,763 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:05,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178810409] [2022-11-03 02:22:05,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178810409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:05,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:05,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:22:05,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372067039] [2022-11-03 02:22:05,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:05,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:22:05,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:05,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:22:05,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:05,767 INFO L87 Difference]: Start difference. First operand 323 states and 470 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:06,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:06,107 INFO L93 Difference]: Finished difference Result 1192 states and 1765 transitions. [2022-11-03 02:22:06,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:06,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:06,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:06,113 INFO L225 Difference]: With dead ends: 1192 [2022-11-03 02:22:06,113 INFO L226 Difference]: Without dead ends: 899 [2022-11-03 02:22:06,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:22:06,115 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 1680 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:06,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 2538 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:22:06,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-11-03 02:22:06,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 325. [2022-11-03 02:22:06,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 1.4567901234567902) internal successors, (472), 324 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:06,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 472 transitions. [2022-11-03 02:22:06,132 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 472 transitions. Word has length 296 [2022-11-03 02:22:06,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:06,133 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 472 transitions. [2022-11-03 02:22:06,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:06,134 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 472 transitions. [2022-11-03 02:22:06,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:06,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:06,136 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:06,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:06,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:06,359 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:06,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:06,359 INFO L85 PathProgramCache]: Analyzing trace with hash -462248995, now seen corresponding path program 1 times [2022-11-03 02:22:06,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:06,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539453280] [2022-11-03 02:22:06,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:06,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:06,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:06,362 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:06,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 02:22:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:07,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:22:07,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:07,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:07,437 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:07,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539453280] [2022-11-03 02:22:07,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539453280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:07,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:07,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:22:07,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850682067] [2022-11-03 02:22:07,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:07,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:22:07,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:07,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:22:07,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:07,440 INFO L87 Difference]: Start difference. First operand 325 states and 472 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:07,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:07,692 INFO L93 Difference]: Finished difference Result 1192 states and 1764 transitions. [2022-11-03 02:22:07,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:07,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:07,697 INFO L225 Difference]: With dead ends: 1192 [2022-11-03 02:22:07,697 INFO L226 Difference]: Without dead ends: 899 [2022-11-03 02:22:07,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:22:07,699 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 1673 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:07,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 2538 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:22:07,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-11-03 02:22:07,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 327. [2022-11-03 02:22:07,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 326 states have (on average 1.4539877300613497) internal successors, (474), 326 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:07,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 474 transitions. [2022-11-03 02:22:07,709 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 474 transitions. Word has length 296 [2022-11-03 02:22:07,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:07,710 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 474 transitions. [2022-11-03 02:22:07,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:07,710 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 474 transitions. [2022-11-03 02:22:07,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:07,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:07,712 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:07,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:07,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:07,936 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:07,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:07,936 INFO L85 PathProgramCache]: Analyzing trace with hash -479536545, now seen corresponding path program 1 times [2022-11-03 02:22:07,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:07,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202764368] [2022-11-03 02:22:07,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:07,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:07,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:07,939 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:07,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 02:22:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:08,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:22:08,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:09,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:09,294 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:09,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202764368] [2022-11-03 02:22:09,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202764368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:09,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:09,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:22:09,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771207914] [2022-11-03 02:22:09,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:09,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:22:09,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:09,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:22:09,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:09,297 INFO L87 Difference]: Start difference. First operand 327 states and 474 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:10,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:10,013 INFO L93 Difference]: Finished difference Result 1176 states and 1739 transitions. [2022-11-03 02:22:10,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:10,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:10,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:10,017 INFO L225 Difference]: With dead ends: 1176 [2022-11-03 02:22:10,017 INFO L226 Difference]: Without dead ends: 883 [2022-11-03 02:22:10,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:22:10,019 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 1630 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:10,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 2385 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:22:10,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-11-03 02:22:10,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 331. [2022-11-03 02:22:10,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 330 states have (on average 1.4515151515151514) internal successors, (479), 330 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:10,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 479 transitions. [2022-11-03 02:22:10,031 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 479 transitions. Word has length 296 [2022-11-03 02:22:10,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:10,032 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 479 transitions. [2022-11-03 02:22:10,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:10,033 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 479 transitions. [2022-11-03 02:22:10,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:10,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:10,035 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:10,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:10,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:10,258 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:10,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:10,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1685496289, now seen corresponding path program 1 times [2022-11-03 02:22:10,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:10,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284415800] [2022-11-03 02:22:10,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:10,260 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:10,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:10,262 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:10,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 02:22:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:11,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:11,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:11,369 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:11,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:11,370 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:11,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284415800] [2022-11-03 02:22:11,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284415800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:11,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:11,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:11,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644539486] [2022-11-03 02:22:11,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:11,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:11,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:11,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:11,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:11,373 INFO L87 Difference]: Start difference. First operand 331 states and 479 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:12,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:12,244 INFO L93 Difference]: Finished difference Result 1192 states and 1762 transitions. [2022-11-03 02:22:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:12,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:12,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:12,250 INFO L225 Difference]: With dead ends: 1192 [2022-11-03 02:22:12,251 INFO L226 Difference]: Without dead ends: 899 [2022-11-03 02:22:12,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:12,253 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 2069 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:12,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 3094 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:22:12,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-11-03 02:22:12,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 335. [2022-11-03 02:22:12,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.4491017964071857) internal successors, (484), 334 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:12,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 484 transitions. [2022-11-03 02:22:12,265 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 484 transitions. Word has length 296 [2022-11-03 02:22:12,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:12,266 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 484 transitions. [2022-11-03 02:22:12,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:12,267 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 484 transitions. [2022-11-03 02:22:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:12,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:12,269 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:12,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:12,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:12,479 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:12,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:12,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1510373987, now seen corresponding path program 1 times [2022-11-03 02:22:12,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:12,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353166735] [2022-11-03 02:22:12,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:12,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:12,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:12,482 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:12,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-03 02:22:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:13,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:13,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:13,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:13,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:13,573 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:13,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353166735] [2022-11-03 02:22:13,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353166735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:13,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:13,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:22:13,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600104814] [2022-11-03 02:22:13,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:13,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:22:13,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:13,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:22:13,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:13,576 INFO L87 Difference]: Start difference. First operand 335 states and 484 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:14,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:14,151 INFO L93 Difference]: Finished difference Result 1176 states and 1737 transitions. [2022-11-03 02:22:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:14,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:14,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:14,156 INFO L225 Difference]: With dead ends: 1176 [2022-11-03 02:22:14,156 INFO L226 Difference]: Without dead ends: 883 [2022-11-03 02:22:14,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:22:14,158 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1612 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:14,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 2310 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:22:14,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-11-03 02:22:14,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 337. [2022-11-03 02:22:14,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 336 states have (on average 1.4464285714285714) internal successors, (486), 336 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:14,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 486 transitions. [2022-11-03 02:22:14,170 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 486 transitions. Word has length 296 [2022-11-03 02:22:14,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:14,170 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 486 transitions. [2022-11-03 02:22:14,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:14,171 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 486 transitions. [2022-11-03 02:22:14,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:14,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:14,173 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:14,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:14,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:14,390 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:14,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:14,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1666616165, now seen corresponding path program 1 times [2022-11-03 02:22:14,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:14,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025401270] [2022-11-03 02:22:14,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:14,393 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:14,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:14,393 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:14,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-03 02:22:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:15,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:22:15,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:15,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:15,828 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:15,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025401270] [2022-11-03 02:22:15,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025401270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:15,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:15,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:15,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515491069] [2022-11-03 02:22:15,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:15,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:15,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:15,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:15,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:15,833 INFO L87 Difference]: Start difference. First operand 337 states and 486 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:16,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:16,306 INFO L93 Difference]: Finished difference Result 924 states and 1361 transitions. [2022-11-03 02:22:16,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:22:16,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:16,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:16,309 INFO L225 Difference]: With dead ends: 924 [2022-11-03 02:22:16,310 INFO L226 Difference]: Without dead ends: 631 [2022-11-03 02:22:16,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:22:16,312 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 494 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:16,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 2157 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 74 Unchecked, 0.4s Time] [2022-11-03 02:22:16,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-11-03 02:22:16,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 339. [2022-11-03 02:22:16,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 1.4437869822485208) internal successors, (488), 338 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:16,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 488 transitions. [2022-11-03 02:22:16,327 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 488 transitions. Word has length 296 [2022-11-03 02:22:16,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:16,328 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 488 transitions. [2022-11-03 02:22:16,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:16,329 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 488 transitions. [2022-11-03 02:22:16,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:16,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:16,331 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:16,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:16,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:16,549 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:16,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:16,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1944390425, now seen corresponding path program 1 times [2022-11-03 02:22:16,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:16,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74178586] [2022-11-03 02:22:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:16,552 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:16,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:16,553 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:16,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 02:22:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:17,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:22:17,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:18,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:18,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:18,036 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:18,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74178586] [2022-11-03 02:22:18,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74178586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:18,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:18,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:22:18,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326670673] [2022-11-03 02:22:18,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:18,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:22:18,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:18,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:22:18,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:22:18,041 INFO L87 Difference]: Start difference. First operand 339 states and 488 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:18,475 INFO L93 Difference]: Finished difference Result 1216 states and 1795 transitions. [2022-11-03 02:22:18,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:22:18,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:18,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:18,479 INFO L225 Difference]: With dead ends: 1216 [2022-11-03 02:22:18,479 INFO L226 Difference]: Without dead ends: 923 [2022-11-03 02:22:18,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:22:18,481 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1359 mSDsluCounter, 2542 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 3024 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:18,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 3024 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 73 Unchecked, 0.3s Time] [2022-11-03 02:22:18,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2022-11-03 02:22:18,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 341. [2022-11-03 02:22:18,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.4411764705882353) internal successors, (490), 340 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:18,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 490 transitions. [2022-11-03 02:22:18,492 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 490 transitions. Word has length 296 [2022-11-03 02:22:18,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:18,492 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 490 transitions. [2022-11-03 02:22:18,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 490 transitions. [2022-11-03 02:22:18,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:18,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:18,495 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:18,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:18,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:18,708 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:18,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:18,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2123355881, now seen corresponding path program 1 times [2022-11-03 02:22:18,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:18,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495951115] [2022-11-03 02:22:18,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:18,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:18,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:18,711 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:18,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-03 02:22:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:19,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:19,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:19,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:19,989 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:19,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495951115] [2022-11-03 02:22:19,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495951115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:19,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:19,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:19,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838016572] [2022-11-03 02:22:19,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:19,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:19,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:19,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:19,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:19,994 INFO L87 Difference]: Start difference. First operand 341 states and 490 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:20,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:20,692 INFO L93 Difference]: Finished difference Result 1216 states and 1794 transitions. [2022-11-03 02:22:20,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:20,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:20,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:20,696 INFO L225 Difference]: With dead ends: 1216 [2022-11-03 02:22:20,696 INFO L226 Difference]: Without dead ends: 923 [2022-11-03 02:22:20,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:20,697 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 2082 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2082 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:20,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2082 Valid, 3231 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:22:20,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2022-11-03 02:22:20,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 343. [2022-11-03 02:22:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 342 states have (on average 1.4385964912280702) internal successors, (492), 342 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:20,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 492 transitions. [2022-11-03 02:22:20,708 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 492 transitions. Word has length 296 [2022-11-03 02:22:20,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:20,708 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 492 transitions. [2022-11-03 02:22:20,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:20,709 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 492 transitions. [2022-11-03 02:22:20,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:20,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:20,711 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:20,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:20,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:20,927 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:20,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:20,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2055646869, now seen corresponding path program 1 times [2022-11-03 02:22:20,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:20,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297011883] [2022-11-03 02:22:20,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:20,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:20,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:20,931 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:20,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 02:22:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:21,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:21,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:22,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:22,035 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:22,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297011883] [2022-11-03 02:22:22,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297011883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:22,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:22,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:22,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802786535] [2022-11-03 02:22:22,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:22,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:22,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:22,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:22,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:22,038 INFO L87 Difference]: Start difference. First operand 343 states and 492 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:22,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:22,631 INFO L93 Difference]: Finished difference Result 1216 states and 1793 transitions. [2022-11-03 02:22:22,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:22,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:22,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:22,636 INFO L225 Difference]: With dead ends: 1216 [2022-11-03 02:22:22,636 INFO L226 Difference]: Without dead ends: 923 [2022-11-03 02:22:22,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:22,638 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 2074 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:22,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 3224 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:22:22,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2022-11-03 02:22:22,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 345. [2022-11-03 02:22:22,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 1.436046511627907) internal successors, (494), 344 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:22,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 494 transitions. [2022-11-03 02:22:22,649 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 494 transitions. Word has length 296 [2022-11-03 02:22:22,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:22,650 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 494 transitions. [2022-11-03 02:22:22,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:22,650 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 494 transitions. [2022-11-03 02:22:22,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:22,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:22,652 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:22,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:22,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:22,868 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:22,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:22,868 INFO L85 PathProgramCache]: Analyzing trace with hash 237208685, now seen corresponding path program 1 times [2022-11-03 02:22:22,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:22,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074437414] [2022-11-03 02:22:22,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:22,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:22,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:22,872 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:22,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-03 02:22:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:23,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:22:23,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:24,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:24,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:24,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074437414] [2022-11-03 02:22:24,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074437414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:24,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:24,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:22:24,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532020197] [2022-11-03 02:22:24,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:24,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:22:24,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:24,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:22:24,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:22:24,570 INFO L87 Difference]: Start difference. First operand 345 states and 494 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:25,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:25,009 INFO L93 Difference]: Finished difference Result 1224 states and 1804 transitions. [2022-11-03 02:22:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:25,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:25,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:25,015 INFO L225 Difference]: With dead ends: 1224 [2022-11-03 02:22:25,015 INFO L226 Difference]: Without dead ends: 931 [2022-11-03 02:22:25,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:22:25,016 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1360 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 3047 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:25,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 3047 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 68 Unchecked, 0.3s Time] [2022-11-03 02:22:25,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-11-03 02:22:25,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 349. [2022-11-03 02:22:25,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.4339080459770115) internal successors, (499), 348 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:25,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 499 transitions. [2022-11-03 02:22:25,028 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 499 transitions. Word has length 296 [2022-11-03 02:22:25,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:25,028 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 499 transitions. [2022-11-03 02:22:25,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:25,028 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 499 transitions. [2022-11-03 02:22:25,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:25,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:25,032 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:25,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:25,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:25,241 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:25,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:25,242 INFO L85 PathProgramCache]: Analyzing trace with hash -162297745, now seen corresponding path program 1 times [2022-11-03 02:22:25,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:25,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421099739] [2022-11-03 02:22:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:25,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:25,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:25,245 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:25,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-03 02:22:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:26,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:26,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:26,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:26,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:26,592 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:26,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421099739] [2022-11-03 02:22:26,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421099739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:26,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:26,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:26,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445226470] [2022-11-03 02:22:26,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:26,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:26,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:26,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:26,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:26,594 INFO L87 Difference]: Start difference. First operand 349 states and 499 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:27,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:27,274 INFO L93 Difference]: Finished difference Result 1224 states and 1803 transitions. [2022-11-03 02:22:27,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:27,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:27,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:27,280 INFO L225 Difference]: With dead ends: 1224 [2022-11-03 02:22:27,280 INFO L226 Difference]: Without dead ends: 931 [2022-11-03 02:22:27,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:27,281 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 2069 mSDsluCounter, 2755 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:27,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 3218 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:22:27,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-11-03 02:22:27,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 351. [2022-11-03 02:22:27,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.4314285714285715) internal successors, (501), 350 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:27,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 501 transitions. [2022-11-03 02:22:27,293 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 501 transitions. Word has length 296 [2022-11-03 02:22:27,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:27,293 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 501 transitions. [2022-11-03 02:22:27,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:27,294 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 501 transitions. [2022-11-03 02:22:27,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:27,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:27,296 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:27,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:27,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:27,511 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:27,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:27,511 INFO L85 PathProgramCache]: Analyzing trace with hash 190358769, now seen corresponding path program 1 times [2022-11-03 02:22:27,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:27,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574799520] [2022-11-03 02:22:27,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:27,513 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:27,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:27,514 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:27,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-03 02:22:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:28,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:28,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:28,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:28,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:28,727 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:28,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574799520] [2022-11-03 02:22:28,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574799520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:28,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:28,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:28,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359366297] [2022-11-03 02:22:28,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:28,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:28,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:28,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:28,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:28,730 INFO L87 Difference]: Start difference. First operand 351 states and 501 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:29,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:29,352 INFO L93 Difference]: Finished difference Result 1224 states and 1802 transitions. [2022-11-03 02:22:29,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:29,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:29,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:29,358 INFO L225 Difference]: With dead ends: 1224 [2022-11-03 02:22:29,359 INFO L226 Difference]: Without dead ends: 931 [2022-11-03 02:22:29,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:29,360 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 2061 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2061 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:29,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2061 Valid, 3211 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:22:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-11-03 02:22:29,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 353. [2022-11-03 02:22:29,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 1.4289772727272727) internal successors, (503), 352 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:29,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 503 transitions. [2022-11-03 02:22:29,371 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 503 transitions. Word has length 296 [2022-11-03 02:22:29,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:29,371 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 503 transitions. [2022-11-03 02:22:29,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:29,372 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 503 transitions. [2022-11-03 02:22:29,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:29,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:29,374 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:29,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:29,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:29,595 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:29,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:29,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1486813683, now seen corresponding path program 1 times [2022-11-03 02:22:29,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:29,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476378661] [2022-11-03 02:22:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:29,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:29,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:29,599 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:29,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 02:22:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:30,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:22:30,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:31,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:31,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:31,142 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:31,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476378661] [2022-11-03 02:22:31,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476378661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:31,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:31,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:31,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236940269] [2022-11-03 02:22:31,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:31,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:31,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:31,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:31,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:31,145 INFO L87 Difference]: Start difference. First operand 353 states and 503 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:31,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:31,503 INFO L93 Difference]: Finished difference Result 940 states and 1378 transitions. [2022-11-03 02:22:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:31,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:31,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:31,506 INFO L225 Difference]: With dead ends: 940 [2022-11-03 02:22:31,507 INFO L226 Difference]: Without dead ends: 647 [2022-11-03 02:22:31,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:22:31,508 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 495 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:31,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 2203 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 72 Unchecked, 0.3s Time] [2022-11-03 02:22:31,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-11-03 02:22:31,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 355. [2022-11-03 02:22:31,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 1.426553672316384) internal successors, (505), 354 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:31,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 505 transitions. [2022-11-03 02:22:31,515 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 505 transitions. Word has length 296 [2022-11-03 02:22:31,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:31,515 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 505 transitions. [2022-11-03 02:22:31,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:31,515 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 505 transitions. [2022-11-03 02:22:31,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:31,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:31,517 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:31,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:31,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:31,717 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:31,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:31,718 INFO L85 PathProgramCache]: Analyzing trace with hash 370845557, now seen corresponding path program 1 times [2022-11-03 02:22:31,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:31,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726749612] [2022-11-03 02:22:31,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:31,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:31,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:31,720 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:31,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-03 02:22:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:32,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:22:32,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:33,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:33,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:33,436 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:33,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726749612] [2022-11-03 02:22:33,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726749612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:33,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:33,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:22:33,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511043989] [2022-11-03 02:22:33,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:33,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:22:33,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:33,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:22:33,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:22:33,440 INFO L87 Difference]: Start difference. First operand 355 states and 505 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:33,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:33,921 INFO L93 Difference]: Finished difference Result 1232 states and 1812 transitions. [2022-11-03 02:22:33,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:33,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:33,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:33,925 INFO L225 Difference]: With dead ends: 1232 [2022-11-03 02:22:33,926 INFO L226 Difference]: Without dead ends: 939 [2022-11-03 02:22:33,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:22:33,927 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1360 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:33,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 3066 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 71 Unchecked, 0.4s Time] [2022-11-03 02:22:33,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-11-03 02:22:33,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 357. [2022-11-03 02:22:33,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 1.4241573033707866) internal successors, (507), 356 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:33,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 507 transitions. [2022-11-03 02:22:33,940 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 507 transitions. Word has length 296 [2022-11-03 02:22:33,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:33,940 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 507 transitions. [2022-11-03 02:22:33,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 507 transitions. [2022-11-03 02:22:33,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:33,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:33,944 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:33,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:34,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:34,159 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:34,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:34,159 INFO L85 PathProgramCache]: Analyzing trace with hash 709348727, now seen corresponding path program 1 times [2022-11-03 02:22:34,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:34,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710640373] [2022-11-03 02:22:34,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:34,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:34,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:34,162 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:34,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-03 02:22:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:35,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:35,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:35,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:35,446 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:35,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710640373] [2022-11-03 02:22:35,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710640373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:35,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:35,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:35,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476532305] [2022-11-03 02:22:35,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:35,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:35,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:35,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:35,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:35,449 INFO L87 Difference]: Start difference. First operand 357 states and 507 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:36,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:36,085 INFO L93 Difference]: Finished difference Result 1232 states and 1811 transitions. [2022-11-03 02:22:36,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:36,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:36,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:36,088 INFO L225 Difference]: With dead ends: 1232 [2022-11-03 02:22:36,088 INFO L226 Difference]: Without dead ends: 939 [2022-11-03 02:22:36,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:36,089 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 2052 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:36,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 3202 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:22:36,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-11-03 02:22:36,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 359. [2022-11-03 02:22:36,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.4217877094972067) internal successors, (509), 358 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 509 transitions. [2022-11-03 02:22:36,100 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 509 transitions. Word has length 296 [2022-11-03 02:22:36,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:36,101 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 509 transitions. [2022-11-03 02:22:36,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:36,101 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 509 transitions. [2022-11-03 02:22:36,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:36,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:36,104 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:36,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:36,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:36,327 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:36,327 INFO L85 PathProgramCache]: Analyzing trace with hash 740985849, now seen corresponding path program 1 times [2022-11-03 02:22:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:36,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069444495] [2022-11-03 02:22:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:36,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:36,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:36,330 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:36,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-03 02:22:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:37,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:37,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:37,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:37,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:37,534 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:37,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069444495] [2022-11-03 02:22:37,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069444495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:37,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:37,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:37,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098608279] [2022-11-03 02:22:37,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:37,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:37,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:37,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:37,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:37,537 INFO L87 Difference]: Start difference. First operand 359 states and 509 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:38,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:38,179 INFO L93 Difference]: Finished difference Result 1232 states and 1810 transitions. [2022-11-03 02:22:38,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:38,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:38,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:38,183 INFO L225 Difference]: With dead ends: 1232 [2022-11-03 02:22:38,183 INFO L226 Difference]: Without dead ends: 939 [2022-11-03 02:22:38,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:38,184 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 2044 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:38,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2044 Valid, 3195 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:22:38,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-11-03 02:22:38,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 361. [2022-11-03 02:22:38,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.4194444444444445) internal successors, (511), 360 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:38,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 511 transitions. [2022-11-03 02:22:38,196 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 511 transitions. Word has length 296 [2022-11-03 02:22:38,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:38,196 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 511 transitions. [2022-11-03 02:22:38,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:38,197 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 511 transitions. [2022-11-03 02:22:38,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:38,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:38,199 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:38,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:38,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:38,419 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:38,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:38,419 INFO L85 PathProgramCache]: Analyzing trace with hash -447806725, now seen corresponding path program 1 times [2022-11-03 02:22:38,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:38,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614082201] [2022-11-03 02:22:38,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:38,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:38,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:38,422 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:38,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-03 02:22:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:39,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:22:39,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:40,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:40,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:40,149 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:40,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614082201] [2022-11-03 02:22:40,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614082201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:40,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:40,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:40,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768009079] [2022-11-03 02:22:40,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:40,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:40,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:40,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:40,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:40,151 INFO L87 Difference]: Start difference. First operand 361 states and 511 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:40,578 INFO L93 Difference]: Finished difference Result 948 states and 1386 transitions. [2022-11-03 02:22:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:40,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:40,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:40,582 INFO L225 Difference]: With dead ends: 948 [2022-11-03 02:22:40,583 INFO L226 Difference]: Without dead ends: 655 [2022-11-03 02:22:40,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:22:40,584 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 495 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:40,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 2225 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 71 Unchecked, 0.4s Time] [2022-11-03 02:22:40,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2022-11-03 02:22:40,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 363. [2022-11-03 02:22:40,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 1.4171270718232045) internal successors, (513), 362 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:40,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 513 transitions. [2022-11-03 02:22:40,595 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 513 transitions. Word has length 296 [2022-11-03 02:22:40,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:40,595 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 513 transitions. [2022-11-03 02:22:40,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:40,596 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 513 transitions. [2022-11-03 02:22:40,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:40,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:40,598 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:40,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:40,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:40,824 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:40,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:40,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1405702781, now seen corresponding path program 1 times [2022-11-03 02:22:40,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:40,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683249383] [2022-11-03 02:22:40,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:40,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:40,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:40,827 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:40,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-03 02:22:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:41,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:41,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:42,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:42,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:42,096 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:42,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683249383] [2022-11-03 02:22:42,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683249383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:42,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:42,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:42,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942764181] [2022-11-03 02:22:42,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:42,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:42,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:42,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:42,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:42,098 INFO L87 Difference]: Start difference. First operand 363 states and 513 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:42,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:42,684 INFO L93 Difference]: Finished difference Result 1240 states and 1820 transitions. [2022-11-03 02:22:42,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:42,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:42,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:42,688 INFO L225 Difference]: With dead ends: 1240 [2022-11-03 02:22:42,688 INFO L226 Difference]: Without dead ends: 947 [2022-11-03 02:22:42,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:42,690 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 2039 mSDsluCounter, 2707 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2039 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:42,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2039 Valid, 3187 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:22:42,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-11-03 02:22:42,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 367. [2022-11-03 02:22:42,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 366 states have (on average 1.4153005464480874) internal successors, (518), 366 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:42,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 518 transitions. [2022-11-03 02:22:42,700 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 518 transitions. Word has length 296 [2022-11-03 02:22:42,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:42,701 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 518 transitions. [2022-11-03 02:22:42,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:42,701 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 518 transitions. [2022-11-03 02:22:42,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:42,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:42,703 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:42,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-11-03 02:22:42,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:42,927 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:42,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash 55292671, now seen corresponding path program 1 times [2022-11-03 02:22:42,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:42,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115573393] [2022-11-03 02:22:42,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:42,929 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:42,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:42,930 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:42,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-03 02:22:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:43,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:43,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:44,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:44,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:44,121 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:44,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115573393] [2022-11-03 02:22:44,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115573393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:44,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:44,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:44,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23874384] [2022-11-03 02:22:44,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:44,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:44,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:44,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:44,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:44,123 INFO L87 Difference]: Start difference. First operand 367 states and 518 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:44,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:44,718 INFO L93 Difference]: Finished difference Result 1240 states and 1819 transitions. [2022-11-03 02:22:44,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:44,719 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:44,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:44,721 INFO L225 Difference]: With dead ends: 1240 [2022-11-03 02:22:44,722 INFO L226 Difference]: Without dead ends: 947 [2022-11-03 02:22:44,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:44,723 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 2031 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:44,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 3180 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:22:44,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-11-03 02:22:44,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 369. [2022-11-03 02:22:44,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 368 states have (on average 1.4130434782608696) internal successors, (520), 368 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:44,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 520 transitions. [2022-11-03 02:22:44,736 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 520 transitions. Word has length 296 [2022-11-03 02:22:44,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:44,737 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 520 transitions. [2022-11-03 02:22:44,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:44,737 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 520 transitions. [2022-11-03 02:22:44,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:44,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:44,739 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:44,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:44,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:44,947 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:44,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:44,947 INFO L85 PathProgramCache]: Analyzing trace with hash 831540225, now seen corresponding path program 1 times [2022-11-03 02:22:44,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:44,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150654767] [2022-11-03 02:22:44,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:44,949 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:44,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:44,950 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:44,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-03 02:22:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:45,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:22:45,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:46,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:46,679 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:46,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150654767] [2022-11-03 02:22:46,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150654767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:46,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:46,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:46,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218467298] [2022-11-03 02:22:46,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:46,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:46,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:46,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:46,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:46,681 INFO L87 Difference]: Start difference. First operand 369 states and 520 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:47,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:47,080 INFO L93 Difference]: Finished difference Result 956 states and 1395 transitions. [2022-11-03 02:22:47,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:47,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:47,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:47,082 INFO L225 Difference]: With dead ends: 956 [2022-11-03 02:22:47,082 INFO L226 Difference]: Without dead ends: 663 [2022-11-03 02:22:47,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:22:47,083 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 496 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:47,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 2249 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 74 Unchecked, 0.3s Time] [2022-11-03 02:22:47,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2022-11-03 02:22:47,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 371. [2022-11-03 02:22:47,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 370 states have (on average 1.4108108108108108) internal successors, (522), 370 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:47,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 522 transitions. [2022-11-03 02:22:47,090 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 522 transitions. Word has length 296 [2022-11-03 02:22:47,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:47,091 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 522 transitions. [2022-11-03 02:22:47,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:47,091 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 522 transitions. [2022-11-03 02:22:47,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:47,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:47,093 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:47,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:47,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:47,299 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:47,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:47,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1026867837, now seen corresponding path program 1 times [2022-11-03 02:22:47,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:47,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896878970] [2022-11-03 02:22:47,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:47,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:47,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:47,302 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:47,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-03 02:22:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:48,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:22:48,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:48,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:48,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:48,990 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:48,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896878970] [2022-11-03 02:22:48,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [896878970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:48,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:48,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:22:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067371031] [2022-11-03 02:22:48,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:48,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:22:48,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:48,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:22:48,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:22:48,993 INFO L87 Difference]: Start difference. First operand 371 states and 522 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:49,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:49,420 INFO L93 Difference]: Finished difference Result 1248 states and 1829 transitions. [2022-11-03 02:22:49,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:49,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:49,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:49,422 INFO L225 Difference]: With dead ends: 1248 [2022-11-03 02:22:49,422 INFO L226 Difference]: Without dead ends: 955 [2022-11-03 02:22:49,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:22:49,423 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 1361 mSDsluCounter, 2603 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:49,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 3115 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 76 Unchecked, 0.3s Time] [2022-11-03 02:22:49,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-11-03 02:22:49,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 373. [2022-11-03 02:22:49,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.4086021505376345) internal successors, (524), 372 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:49,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 524 transitions. [2022-11-03 02:22:49,434 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 524 transitions. Word has length 296 [2022-11-03 02:22:49,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:49,434 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 524 transitions. [2022-11-03 02:22:49,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:49,435 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 524 transitions. [2022-11-03 02:22:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:49,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:49,437 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:49,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-03 02:22:49,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:49,654 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:49,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:49,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1505273733, now seen corresponding path program 1 times [2022-11-03 02:22:49,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:49,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942555561] [2022-11-03 02:22:49,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:49,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:49,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:49,658 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:49,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-03 02:22:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:50,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:50,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:51,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:51,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:51,008 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:51,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942555561] [2022-11-03 02:22:51,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942555561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:51,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:51,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:51,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582237848] [2022-11-03 02:22:51,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:51,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:51,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:51,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:51,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:51,011 INFO L87 Difference]: Start difference. First operand 373 states and 524 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:51,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:51,679 INFO L93 Difference]: Finished difference Result 1248 states and 1828 transitions. [2022-11-03 02:22:51,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:51,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:51,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:51,681 INFO L225 Difference]: With dead ends: 1248 [2022-11-03 02:22:51,681 INFO L226 Difference]: Without dead ends: 955 [2022-11-03 02:22:51,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:51,682 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 2022 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:51,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 3171 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:22:51,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-11-03 02:22:51,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 375. [2022-11-03 02:22:51,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 374 states have (on average 1.4064171122994653) internal successors, (526), 374 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 526 transitions. [2022-11-03 02:22:51,692 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 526 transitions. Word has length 296 [2022-11-03 02:22:51,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:51,692 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 526 transitions. [2022-11-03 02:22:51,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 526 transitions. [2022-11-03 02:22:51,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:51,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:51,695 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:51,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2022-11-03 02:22:51,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:51,904 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:51,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:51,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1503439367, now seen corresponding path program 1 times [2022-11-03 02:22:51,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:51,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98632188] [2022-11-03 02:22:51,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:51,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:51,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:51,907 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:51,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-03 02:22:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:52,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:52,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:53,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:53,161 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:53,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98632188] [2022-11-03 02:22:53,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98632188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:53,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:53,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:53,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148441705] [2022-11-03 02:22:53,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:53,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:53,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:53,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:53,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:53,164 INFO L87 Difference]: Start difference. First operand 375 states and 526 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:53,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:53,731 INFO L93 Difference]: Finished difference Result 1248 states and 1827 transitions. [2022-11-03 02:22:53,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:53,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:53,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:53,733 INFO L225 Difference]: With dead ends: 1248 [2022-11-03 02:22:53,733 INFO L226 Difference]: Without dead ends: 955 [2022-11-03 02:22:53,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:53,734 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 2014 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2014 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:53,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2014 Valid, 3164 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:22:53,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-11-03 02:22:53,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 377. [2022-11-03 02:22:53,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 376 states have (on average 1.4042553191489362) internal successors, (528), 376 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:53,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 528 transitions. [2022-11-03 02:22:53,742 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 528 transitions. Word has length 296 [2022-11-03 02:22:53,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:53,742 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 528 transitions. [2022-11-03 02:22:53,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:53,742 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 528 transitions. [2022-11-03 02:22:53,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:53,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:53,744 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:53,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2022-11-03 02:22:53,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:53,959 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:53,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:53,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1749247241, now seen corresponding path program 1 times [2022-11-03 02:22:53,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:53,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952724315] [2022-11-03 02:22:53,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:53,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:53,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:53,961 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:53,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-03 02:22:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:54,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:22:54,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:55,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:55,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:55,733 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:55,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952724315] [2022-11-03 02:22:55,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952724315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:55,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:55,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:22:55,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789314137] [2022-11-03 02:22:55,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:55,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:22:55,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:55,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:22:55,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:22:55,735 INFO L87 Difference]: Start difference. First operand 377 states and 528 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:56,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:56,156 INFO L93 Difference]: Finished difference Result 1256 states and 1838 transitions. [2022-11-03 02:22:56,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:56,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:56,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:56,158 INFO L225 Difference]: With dead ends: 1256 [2022-11-03 02:22:56,158 INFO L226 Difference]: Without dead ends: 963 [2022-11-03 02:22:56,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:22:56,159 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 1362 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 3129 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:56,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 3129 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 82 Unchecked, 0.3s Time] [2022-11-03 02:22:56,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-11-03 02:22:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 381. [2022-11-03 02:22:56,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.4026315789473685) internal successors, (533), 380 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:56,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 533 transitions. [2022-11-03 02:22:56,168 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 533 transitions. Word has length 296 [2022-11-03 02:22:56,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:56,169 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 533 transitions. [2022-11-03 02:22:56,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:56,169 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 533 transitions. [2022-11-03 02:22:56,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:56,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:56,172 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:56,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2022-11-03 02:22:56,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:56,388 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:56,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:56,389 INFO L85 PathProgramCache]: Analyzing trace with hash 435417355, now seen corresponding path program 1 times [2022-11-03 02:22:56,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:56,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887333131] [2022-11-03 02:22:56,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:56,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:56,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:56,391 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:56,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-03 02:22:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:57,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:57,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:57,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:57,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:57,803 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:57,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887333131] [2022-11-03 02:22:57,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887333131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:57,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:57,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:57,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307832823] [2022-11-03 02:22:57,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:57,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:57,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:57,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:57,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:57,806 INFO L87 Difference]: Start difference. First operand 381 states and 533 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:58,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:58,425 INFO L93 Difference]: Finished difference Result 1256 states and 1837 transitions. [2022-11-03 02:22:58,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:22:58,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:22:58,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:58,427 INFO L225 Difference]: With dead ends: 1256 [2022-11-03 02:22:58,427 INFO L226 Difference]: Without dead ends: 963 [2022-11-03 02:22:58,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:22:58,428 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 2009 mSDsluCounter, 2659 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:58,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 3156 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:22:58,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-11-03 02:22:58,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 383. [2022-11-03 02:22:58,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.4005235602094241) internal successors, (535), 382 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:58,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 535 transitions. [2022-11-03 02:22:58,439 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 535 transitions. Word has length 296 [2022-11-03 02:22:58,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:58,439 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 535 transitions. [2022-11-03 02:22:58,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:58,440 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 535 transitions. [2022-11-03 02:22:58,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:22:58,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:58,441 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:58,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2022-11-03 02:22:58,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:58,642 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:58,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:58,642 INFO L85 PathProgramCache]: Analyzing trace with hash -285502067, now seen corresponding path program 1 times [2022-11-03 02:22:58,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:58,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949066634] [2022-11-03 02:22:58,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:58,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:58,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:58,645 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:58,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-03 02:22:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:59,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:22:59,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:59,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:59,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:59,986 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:59,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949066634] [2022-11-03 02:22:59,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949066634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:59,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:59,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:22:59,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258023960] [2022-11-03 02:22:59,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:59,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:59,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:59,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:59,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:59,989 INFO L87 Difference]: Start difference. First operand 383 states and 535 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:00,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:00,580 INFO L93 Difference]: Finished difference Result 1256 states and 1836 transitions. [2022-11-03 02:23:00,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:00,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:00,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:00,583 INFO L225 Difference]: With dead ends: 1256 [2022-11-03 02:23:00,583 INFO L226 Difference]: Without dead ends: 963 [2022-11-03 02:23:00,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:00,584 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 2001 mSDsluCounter, 2650 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2001 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:00,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2001 Valid, 3149 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:23:00,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-11-03 02:23:00,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 385. [2022-11-03 02:23:00,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.3984375) internal successors, (537), 384 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:00,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 537 transitions. [2022-11-03 02:23:00,594 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 537 transitions. Word has length 296 [2022-11-03 02:23:00,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:00,595 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 537 transitions. [2022-11-03 02:23:00,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:00,595 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 537 transitions. [2022-11-03 02:23:00,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:00,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:00,597 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:00,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-11-03 02:23:00,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:00,811 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:00,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:00,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1421446513, now seen corresponding path program 1 times [2022-11-03 02:23:00,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:00,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305537895] [2022-11-03 02:23:00,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:00,813 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:00,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:00,815 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:00,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-03 02:23:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:01,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:23:01,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:02,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:02,595 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:02,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305537895] [2022-11-03 02:23:02,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305537895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:02,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:02,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:02,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617273069] [2022-11-03 02:23:02,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:02,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:02,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:02,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:02,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:02,598 INFO L87 Difference]: Start difference. First operand 385 states and 537 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:02,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:02,969 INFO L93 Difference]: Finished difference Result 972 states and 1412 transitions. [2022-11-03 02:23:02,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:02,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:02,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:02,971 INFO L225 Difference]: With dead ends: 972 [2022-11-03 02:23:02,971 INFO L226 Difference]: Without dead ends: 679 [2022-11-03 02:23:02,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:23:02,974 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 497 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:02,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 2293 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 45 Unchecked, 0.3s Time] [2022-11-03 02:23:02,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-11-03 02:23:02,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 387. [2022-11-03 02:23:02,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 1.3963730569948187) internal successors, (539), 386 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:02,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 539 transitions. [2022-11-03 02:23:02,981 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 539 transitions. Word has length 296 [2022-11-03 02:23:02,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:02,981 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 539 transitions. [2022-11-03 02:23:02,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 539 transitions. [2022-11-03 02:23:02,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:02,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:02,984 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:03,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:03,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:03,195 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:03,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:03,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1598597137, now seen corresponding path program 1 times [2022-11-03 02:23:03,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:03,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875371264] [2022-11-03 02:23:03,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:03,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:03,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:03,199 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:03,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-03 02:23:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:03,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:23:03,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:05,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:05,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:05,024 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:05,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875371264] [2022-11-03 02:23:05,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875371264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:05,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:05,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:23:05,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420913033] [2022-11-03 02:23:05,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:05,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:23:05,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:05,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:23:05,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:23:05,027 INFO L87 Difference]: Start difference. First operand 387 states and 539 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:05,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:05,476 INFO L93 Difference]: Finished difference Result 1264 states and 1846 transitions. [2022-11-03 02:23:05,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:05,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:05,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:05,478 INFO L225 Difference]: With dead ends: 1264 [2022-11-03 02:23:05,478 INFO L226 Difference]: Without dead ends: 971 [2022-11-03 02:23:05,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:23:05,479 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 1362 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 83 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:05,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 3149 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 83 Unchecked, 0.4s Time] [2022-11-03 02:23:05,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-11-03 02:23:05,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 389. [2022-11-03 02:23:05,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 388 states have (on average 1.3943298969072164) internal successors, (541), 388 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:05,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 541 transitions. [2022-11-03 02:23:05,486 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 541 transitions. Word has length 296 [2022-11-03 02:23:05,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:05,487 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 541 transitions. [2022-11-03 02:23:05,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 541 transitions. [2022-11-03 02:23:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:05,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:05,490 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:05,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:05,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:05,703 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:05,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:05,703 INFO L85 PathProgramCache]: Analyzing trace with hash -369207789, now seen corresponding path program 1 times [2022-11-03 02:23:05,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:05,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610869398] [2022-11-03 02:23:05,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:05,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:05,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:05,706 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:05,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-03 02:23:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:06,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:23:06,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:07,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:07,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:07,201 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:07,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610869398] [2022-11-03 02:23:07,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610869398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:07,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:07,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:07,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385722524] [2022-11-03 02:23:07,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:07,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:07,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:07,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:07,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:07,205 INFO L87 Difference]: Start difference. First operand 389 states and 541 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:07,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:07,846 INFO L93 Difference]: Finished difference Result 1264 states and 1845 transitions. [2022-11-03 02:23:07,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:07,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:07,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:07,848 INFO L225 Difference]: With dead ends: 1264 [2022-11-03 02:23:07,848 INFO L226 Difference]: Without dead ends: 971 [2022-11-03 02:23:07,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:07,849 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 1992 mSDsluCounter, 2635 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:07,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 3140 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:23:07,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-11-03 02:23:07,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 391. [2022-11-03 02:23:07,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 390 states have (on average 1.3923076923076922) internal successors, (543), 390 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:07,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 543 transitions. [2022-11-03 02:23:07,861 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 543 transitions. Word has length 296 [2022-11-03 02:23:07,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:07,861 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 543 transitions. [2022-11-03 02:23:07,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:07,862 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 543 transitions. [2022-11-03 02:23:07,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:07,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:07,864 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:07,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2022-11-03 02:23:08,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:08,087 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:08,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:08,087 INFO L85 PathProgramCache]: Analyzing trace with hash -85222251, now seen corresponding path program 1 times [2022-11-03 02:23:08,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:08,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407744518] [2022-11-03 02:23:08,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:08,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:08,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:08,089 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:08,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-03 02:23:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:08,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:23:08,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:09,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:09,375 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:09,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407744518] [2022-11-03 02:23:09,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407744518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:09,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:09,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:09,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128033696] [2022-11-03 02:23:09,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:09,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:09,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:09,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:09,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:09,378 INFO L87 Difference]: Start difference. First operand 391 states and 543 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:10,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:10,006 INFO L93 Difference]: Finished difference Result 1264 states and 1844 transitions. [2022-11-03 02:23:10,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:10,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:10,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:10,008 INFO L225 Difference]: With dead ends: 1264 [2022-11-03 02:23:10,008 INFO L226 Difference]: Without dead ends: 971 [2022-11-03 02:23:10,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:10,009 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 1984 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:10,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1984 Valid, 3133 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:23:10,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-11-03 02:23:10,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 393. [2022-11-03 02:23:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 392 states have (on average 1.3903061224489797) internal successors, (545), 392 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:10,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 545 transitions. [2022-11-03 02:23:10,018 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 545 transitions. Word has length 296 [2022-11-03 02:23:10,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:10,019 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 545 transitions. [2022-11-03 02:23:10,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:10,019 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 545 transitions. [2022-11-03 02:23:10,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:10,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:10,021 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:10,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:10,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:10,243 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:10,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:10,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1810064489, now seen corresponding path program 1 times [2022-11-03 02:23:10,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:10,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055362849] [2022-11-03 02:23:10,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:10,245 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:10,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:10,247 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:10,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-03 02:23:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:11,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:23:11,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:11,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:11,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:11,729 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:11,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055362849] [2022-11-03 02:23:11,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055362849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:11,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:11,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:11,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825798060] [2022-11-03 02:23:11,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:11,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:11,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:11,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:11,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:11,732 INFO L87 Difference]: Start difference. First operand 393 states and 545 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:12,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:12,438 INFO L93 Difference]: Finished difference Result 1272 states and 1855 transitions. [2022-11-03 02:23:12,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:12,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:12,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:12,441 INFO L225 Difference]: With dead ends: 1272 [2022-11-03 02:23:12,441 INFO L226 Difference]: Without dead ends: 979 [2022-11-03 02:23:12,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:12,443 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 1982 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1982 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:12,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1982 Valid, 3126 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:23:12,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2022-11-03 02:23:12,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 399. [2022-11-03 02:23:12,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 398 states have (on average 1.3894472361809045) internal successors, (553), 398 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:12,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 553 transitions. [2022-11-03 02:23:12,454 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 553 transitions. Word has length 296 [2022-11-03 02:23:12,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:12,455 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 553 transitions. [2022-11-03 02:23:12,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:12,455 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 553 transitions. [2022-11-03 02:23:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:12,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:12,457 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:12,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:12,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:12,684 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:12,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:12,685 INFO L85 PathProgramCache]: Analyzing trace with hash 699499545, now seen corresponding path program 1 times [2022-11-03 02:23:12,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:12,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858564525] [2022-11-03 02:23:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:12,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:12,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:12,687 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:12,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-03 02:23:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:13,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:23:13,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:14,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:14,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:14,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:14,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858564525] [2022-11-03 02:23:14,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858564525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:14,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:14,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:14,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170740895] [2022-11-03 02:23:14,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:14,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:14,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:14,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:14,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:14,181 INFO L87 Difference]: Start difference. First operand 399 states and 553 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:14,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:14,829 INFO L93 Difference]: Finished difference Result 1272 states and 1854 transitions. [2022-11-03 02:23:14,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:14,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:14,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:14,832 INFO L225 Difference]: With dead ends: 1272 [2022-11-03 02:23:14,832 INFO L226 Difference]: Without dead ends: 979 [2022-11-03 02:23:14,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:14,833 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 1974 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:14,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1974 Valid, 3119 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:23:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2022-11-03 02:23:14,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 401. [2022-11-03 02:23:14,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.3875) internal successors, (555), 400 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:14,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 555 transitions. [2022-11-03 02:23:14,842 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 555 transitions. Word has length 296 [2022-11-03 02:23:14,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:14,843 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 555 transitions. [2022-11-03 02:23:14,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:14,843 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 555 transitions. [2022-11-03 02:23:14,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:14,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:14,846 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:14,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:15,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:15,059 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:15,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:15,059 INFO L85 PathProgramCache]: Analyzing trace with hash 822781211, now seen corresponding path program 1 times [2022-11-03 02:23:15,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:15,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094400105] [2022-11-03 02:23:15,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:15,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:15,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:15,062 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:15,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-03 02:23:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:15,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-03 02:23:15,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:17,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:17,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:17,657 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:17,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094400105] [2022-11-03 02:23:17,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094400105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:17,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:17,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:23:17,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061028051] [2022-11-03 02:23:17,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:17,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 02:23:17,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:17,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 02:23:17,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:23:17,659 INFO L87 Difference]: Start difference. First operand 401 states and 555 transitions. Second operand has 10 states, 10 states have (on average 29.6) internal successors, (296), 10 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:17,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:17,812 INFO L93 Difference]: Finished difference Result 702 states and 1002 transitions. [2022-11-03 02:23:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:23:17,813 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 29.6) internal successors, (296), 10 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:17,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:17,814 INFO L225 Difference]: With dead ends: 702 [2022-11-03 02:23:17,814 INFO L226 Difference]: Without dead ends: 409 [2022-11-03 02:23:17,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:23:17,816 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 12 mSDsluCounter, 3245 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3667 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 131 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:17,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3667 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 131 Unchecked, 0.1s Time] [2022-11-03 02:23:17,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-11-03 02:23:17,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2022-11-03 02:23:17,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 408 states have (on average 1.3823529411764706) internal successors, (564), 408 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:17,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 564 transitions. [2022-11-03 02:23:17,826 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 564 transitions. Word has length 296 [2022-11-03 02:23:17,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:17,826 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 564 transitions. [2022-11-03 02:23:17,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 29.6) internal successors, (296), 10 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:17,827 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 564 transitions. [2022-11-03 02:23:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:17,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:17,829 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:17,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:18,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:18,043 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:18,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:18,043 INFO L85 PathProgramCache]: Analyzing trace with hash 814782237, now seen corresponding path program 1 times [2022-11-03 02:23:18,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:18,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901730179] [2022-11-03 02:23:18,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:18,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:18,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:18,048 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:18,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-03 02:23:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:18,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 02:23:18,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:19,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:19,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:19,707 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:19,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901730179] [2022-11-03 02:23:19,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [901730179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:19,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:19,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:23:19,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955623544] [2022-11-03 02:23:19,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:19,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:23:19,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:19,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:23:19,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:23:19,709 INFO L87 Difference]: Start difference. First operand 409 states and 564 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:19,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:19,988 INFO L93 Difference]: Finished difference Result 1264 states and 1838 transitions. [2022-11-03 02:23:19,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:19,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:19,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:19,991 INFO L225 Difference]: With dead ends: 1264 [2022-11-03 02:23:19,991 INFO L226 Difference]: Without dead ends: 971 [2022-11-03 02:23:19,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:23:19,992 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 1273 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:19,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 3303 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 39 Unchecked, 0.2s Time] [2022-11-03 02:23:19,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-11-03 02:23:20,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 421. [2022-11-03 02:23:20,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.3833333333333333) internal successors, (581), 420 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:20,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 581 transitions. [2022-11-03 02:23:20,003 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 581 transitions. Word has length 296 [2022-11-03 02:23:20,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:20,003 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 581 transitions. [2022-11-03 02:23:20,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:20,004 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 581 transitions. [2022-11-03 02:23:20,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:20,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:20,005 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:20,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:20,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:20,219 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:20,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:20,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1881036001, now seen corresponding path program 1 times [2022-11-03 02:23:20,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:20,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154737521] [2022-11-03 02:23:20,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:20,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:20,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:20,221 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:20,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-03 02:23:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:20,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 02:23:20,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:21,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:21,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:21,661 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:21,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154737521] [2022-11-03 02:23:21,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154737521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:21,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:21,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:23:21,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491477132] [2022-11-03 02:23:21,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:21,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:23:21,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:21,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:23:21,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:23:21,663 INFO L87 Difference]: Start difference. First operand 421 states and 581 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:21,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:21,971 INFO L93 Difference]: Finished difference Result 1256 states and 1825 transitions. [2022-11-03 02:23:21,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:21,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:21,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:21,974 INFO L225 Difference]: With dead ends: 1256 [2022-11-03 02:23:21,974 INFO L226 Difference]: Without dead ends: 963 [2022-11-03 02:23:21,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:23:21,975 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 1243 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 3305 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:21,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 3305 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 39 Unchecked, 0.2s Time] [2022-11-03 02:23:21,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-11-03 02:23:21,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 423. [2022-11-03 02:23:21,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 1.3815165876777251) internal successors, (583), 422 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:21,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 583 transitions. [2022-11-03 02:23:21,985 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 583 transitions. Word has length 296 [2022-11-03 02:23:21,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:21,985 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 583 transitions. [2022-11-03 02:23:21,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:21,986 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 583 transitions. [2022-11-03 02:23:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:21,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:21,987 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:22,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:22,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:22,203 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:22,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:22,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1861494879, now seen corresponding path program 1 times [2022-11-03 02:23:22,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:22,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181864267] [2022-11-03 02:23:22,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:22,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:22,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:22,206 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:22,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-03 02:23:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:22,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 02:23:22,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:23,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:23,607 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:23,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181864267] [2022-11-03 02:23:23,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181864267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:23,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:23,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:23:23,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794431373] [2022-11-03 02:23:23,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:23,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:23:23,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:23,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:23:23,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:23:23,609 INFO L87 Difference]: Start difference. First operand 423 states and 583 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:23,910 INFO L93 Difference]: Finished difference Result 1248 states and 1812 transitions. [2022-11-03 02:23:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:23,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:23,912 INFO L225 Difference]: With dead ends: 1248 [2022-11-03 02:23:23,912 INFO L226 Difference]: Without dead ends: 955 [2022-11-03 02:23:23,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:23:23,914 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 1213 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 3307 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:23,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 3307 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 32 Unchecked, 0.2s Time] [2022-11-03 02:23:23,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-11-03 02:23:23,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 425. [2022-11-03 02:23:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 424 states have (on average 1.3797169811320755) internal successors, (585), 424 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:23,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 585 transitions. [2022-11-03 02:23:23,924 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 585 transitions. Word has length 296 [2022-11-03 02:23:23,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:23,925 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 585 transitions. [2022-11-03 02:23:23,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:23,925 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 585 transitions. [2022-11-03 02:23:23,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:23,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:23,927 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:23,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:24,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:24,151 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:24,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:24,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1334100829, now seen corresponding path program 1 times [2022-11-03 02:23:24,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:24,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640014106] [2022-11-03 02:23:24,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:24,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:24,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:24,153 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:24,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-03 02:23:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:24,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 02:23:24,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:25,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:25,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:25,579 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:25,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640014106] [2022-11-03 02:23:25,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [640014106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:25,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:25,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:23:25,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166237989] [2022-11-03 02:23:25,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:25,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:23:25,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:25,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:23:25,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:23:25,581 INFO L87 Difference]: Start difference. First operand 425 states and 585 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:25,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:25,904 INFO L93 Difference]: Finished difference Result 1240 states and 1799 transitions. [2022-11-03 02:23:25,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:25,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:25,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:25,906 INFO L225 Difference]: With dead ends: 1240 [2022-11-03 02:23:25,906 INFO L226 Difference]: Without dead ends: 947 [2022-11-03 02:23:25,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:23:25,908 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 1183 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 3307 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:25,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 3307 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 34 Unchecked, 0.2s Time] [2022-11-03 02:23:25,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-11-03 02:23:25,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 427. [2022-11-03 02:23:25,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.3779342723004695) internal successors, (587), 426 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:25,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 587 transitions. [2022-11-03 02:23:25,918 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 587 transitions. Word has length 296 [2022-11-03 02:23:25,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:25,918 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 587 transitions. [2022-11-03 02:23:25,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:25,918 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 587 transitions. [2022-11-03 02:23:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:25,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:25,920 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:25,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Ended with exit code 0 [2022-11-03 02:23:26,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:26,120 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:26,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:26,121 INFO L85 PathProgramCache]: Analyzing trace with hash -685508059, now seen corresponding path program 1 times [2022-11-03 02:23:26,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:26,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441914737] [2022-11-03 02:23:26,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:26,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:26,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:26,125 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:26,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-11-03 02:23:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:26,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 02:23:26,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:27,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:27,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:27,497 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:27,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441914737] [2022-11-03 02:23:27,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441914737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:27,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:27,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:23:27,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636623846] [2022-11-03 02:23:27,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:27,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:23:27,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:27,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:23:27,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:23:27,512 INFO L87 Difference]: Start difference. First operand 427 states and 587 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:27,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:27,824 INFO L93 Difference]: Finished difference Result 1232 states and 1786 transitions. [2022-11-03 02:23:27,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:27,824 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:27,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:27,826 INFO L225 Difference]: With dead ends: 1232 [2022-11-03 02:23:27,826 INFO L226 Difference]: Without dead ends: 939 [2022-11-03 02:23:27,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:23:27,827 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 1153 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 3313 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:27,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 3313 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 39 Unchecked, 0.2s Time] [2022-11-03 02:23:27,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-11-03 02:23:27,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 429. [2022-11-03 02:23:27,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 428 states have (on average 1.3761682242990654) internal successors, (589), 428 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:27,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 589 transitions. [2022-11-03 02:23:27,836 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 589 transitions. Word has length 296 [2022-11-03 02:23:27,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:27,836 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 589 transitions. [2022-11-03 02:23:27,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:27,836 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 589 transitions. [2022-11-03 02:23:27,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:27,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:27,838 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:27,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:28,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:28,055 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:28,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:28,055 INFO L85 PathProgramCache]: Analyzing trace with hash -595447769, now seen corresponding path program 1 times [2022-11-03 02:23:28,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:28,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541492497] [2022-11-03 02:23:28,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:28,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:28,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:28,058 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:28,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-03 02:23:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:28,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:23:28,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:29,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:29,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:29,288 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:29,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541492497] [2022-11-03 02:23:29,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541492497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:29,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:29,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:23:29,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096790805] [2022-11-03 02:23:29,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:29,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:23:29,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:29,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:23:29,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:23:29,290 INFO L87 Difference]: Start difference. First operand 429 states and 589 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:29,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:29,633 INFO L93 Difference]: Finished difference Result 1224 states and 1773 transitions. [2022-11-03 02:23:29,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:23:29,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:29,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:29,635 INFO L225 Difference]: With dead ends: 1224 [2022-11-03 02:23:29,635 INFO L226 Difference]: Without dead ends: 931 [2022-11-03 02:23:29,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:23:29,636 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 1123 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 3313 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:29,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 3313 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 35 Unchecked, 0.3s Time] [2022-11-03 02:23:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-11-03 02:23:29,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 431. [2022-11-03 02:23:29,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.3744186046511628) internal successors, (591), 430 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:29,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 591 transitions. [2022-11-03 02:23:29,644 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 591 transitions. Word has length 296 [2022-11-03 02:23:29,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:29,644 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 591 transitions. [2022-11-03 02:23:29,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:29,645 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 591 transitions. [2022-11-03 02:23:29,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:29,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:29,647 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:29,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:29,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:29,863 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:29,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:29,863 INFO L85 PathProgramCache]: Analyzing trace with hash -2003173719, now seen corresponding path program 1 times [2022-11-03 02:23:29,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:29,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433309137] [2022-11-03 02:23:29,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:29,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:29,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:29,865 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:29,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-11-03 02:23:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:30,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 02:23:30,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:31,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:31,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:31,186 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:31,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433309137] [2022-11-03 02:23:31,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433309137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:31,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:31,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:31,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445406091] [2022-11-03 02:23:31,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:31,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:31,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:31,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:31,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:31,188 INFO L87 Difference]: Start difference. First operand 431 states and 591 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:31,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:31,639 INFO L93 Difference]: Finished difference Result 1216 states and 1760 transitions. [2022-11-03 02:23:31,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:31,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:31,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:31,650 INFO L225 Difference]: With dead ends: 1216 [2022-11-03 02:23:31,650 INFO L226 Difference]: Without dead ends: 923 [2022-11-03 02:23:31,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:31,653 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 1769 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:31,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 3037 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:23:31,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2022-11-03 02:23:31,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 433. [2022-11-03 02:23:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 432 states have (on average 1.3726851851851851) internal successors, (593), 432 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:31,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 593 transitions. [2022-11-03 02:23:31,663 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 593 transitions. Word has length 296 [2022-11-03 02:23:31,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:31,664 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 593 transitions. [2022-11-03 02:23:31,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:31,665 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 593 transitions. [2022-11-03 02:23:31,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:31,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:31,666 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:31,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:31,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:31,891 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:31,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:31,891 INFO L85 PathProgramCache]: Analyzing trace with hash 368543147, now seen corresponding path program 1 times [2022-11-03 02:23:31,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:31,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476224635] [2022-11-03 02:23:31,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:31,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:31,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:31,895 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:31,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-03 02:23:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:32,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:23:32,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:33,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:33,472 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:33,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476224635] [2022-11-03 02:23:33,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476224635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:33,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:33,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:33,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169151187] [2022-11-03 02:23:33,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:33,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:33,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:33,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:33,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:33,474 INFO L87 Difference]: Start difference. First operand 433 states and 593 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:34,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:34,501 INFO L93 Difference]: Finished difference Result 1296 states and 1879 transitions. [2022-11-03 02:23:34,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:34,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:34,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:34,505 INFO L225 Difference]: With dead ends: 1296 [2022-11-03 02:23:34,505 INFO L226 Difference]: Without dead ends: 1003 [2022-11-03 02:23:34,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:34,509 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 1917 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1917 SdHoareTripleChecker+Valid, 2852 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:34,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1917 Valid, 2852 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:23:34,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-11-03 02:23:34,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 435. [2022-11-03 02:23:34,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 434 states have (on average 1.3709677419354838) internal successors, (595), 434 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:34,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 595 transitions. [2022-11-03 02:23:34,523 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 595 transitions. Word has length 296 [2022-11-03 02:23:34,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:34,524 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 595 transitions. [2022-11-03 02:23:34,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:34,525 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 595 transitions. [2022-11-03 02:23:34,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:34,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:34,527 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:34,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:34,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:34,751 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:34,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:34,751 INFO L85 PathProgramCache]: Analyzing trace with hash 867099949, now seen corresponding path program 1 times [2022-11-03 02:23:34,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:34,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524933723] [2022-11-03 02:23:34,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:34,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:34,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:34,755 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:34,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-11-03 02:23:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:35,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-03 02:23:35,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:37,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:37,061 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:37,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524933723] [2022-11-03 02:23:37,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524933723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:37,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:37,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:23:37,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659327276] [2022-11-03 02:23:37,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:37,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:23:37,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:37,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:23:37,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:23:37,063 INFO L87 Difference]: Start difference. First operand 435 states and 595 transitions. Second operand has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:37,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:37,224 INFO L93 Difference]: Finished difference Result 750 states and 1057 transitions. [2022-11-03 02:23:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:37,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:37,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:37,226 INFO L225 Difference]: With dead ends: 750 [2022-11-03 02:23:37,226 INFO L226 Difference]: Without dead ends: 457 [2022-11-03 02:23:37,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:23:37,228 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 36 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:37,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2241 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 48 Unchecked, 0.1s Time] [2022-11-03 02:23:37,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-11-03 02:23:37,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2022-11-03 02:23:37,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 456 states have (on average 1.3574561403508771) internal successors, (619), 456 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 619 transitions. [2022-11-03 02:23:37,236 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 619 transitions. Word has length 296 [2022-11-03 02:23:37,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:37,237 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 619 transitions. [2022-11-03 02:23:37,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:37,237 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 619 transitions. [2022-11-03 02:23:37,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:37,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:37,243 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:37,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (54)] Ended with exit code 0 [2022-11-03 02:23:37,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:37,451 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:37,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:37,451 INFO L85 PathProgramCache]: Analyzing trace with hash -536769237, now seen corresponding path program 1 times [2022-11-03 02:23:37,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:37,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098259005] [2022-11-03 02:23:37,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:37,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:37,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:37,454 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:37,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-03 02:23:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:38,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:23:38,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:39,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:39,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:39,020 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:39,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098259005] [2022-11-03 02:23:39,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098259005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:39,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:39,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:39,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822509282] [2022-11-03 02:23:39,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:39,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:39,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:39,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:39,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:39,022 INFO L87 Difference]: Start difference. First operand 457 states and 619 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:39,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:39,879 INFO L93 Difference]: Finished difference Result 1318 states and 1902 transitions. [2022-11-03 02:23:39,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:39,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:39,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:39,881 INFO L225 Difference]: With dead ends: 1318 [2022-11-03 02:23:39,882 INFO L226 Difference]: Without dead ends: 1025 [2022-11-03 02:23:39,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:39,882 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 1899 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:39,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1899 Valid, 2833 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:23:39,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-11-03 02:23:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 463. [2022-11-03 02:23:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.3571428571428572) internal successors, (627), 462 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:39,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 627 transitions. [2022-11-03 02:23:39,889 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 627 transitions. Word has length 296 [2022-11-03 02:23:39,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:39,890 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 627 transitions. [2022-11-03 02:23:39,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:39,890 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 627 transitions. [2022-11-03 02:23:39,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:39,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:39,891 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:39,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:40,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:40,092 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:40,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:40,092 INFO L85 PathProgramCache]: Analyzing trace with hash -191941075, now seen corresponding path program 1 times [2022-11-03 02:23:40,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:40,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403265717] [2022-11-03 02:23:40,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:40,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:40,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:40,096 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:40,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-11-03 02:23:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:40,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 02:23:40,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:41,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:41,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:41,597 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:41,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403265717] [2022-11-03 02:23:41,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403265717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:41,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:41,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:41,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229780855] [2022-11-03 02:23:41,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:41,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:41,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:41,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:41,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:41,599 INFO L87 Difference]: Start difference. First operand 463 states and 627 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:42,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:42,232 INFO L93 Difference]: Finished difference Result 1342 states and 1937 transitions. [2022-11-03 02:23:42,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:42,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:42,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:42,235 INFO L225 Difference]: With dead ends: 1342 [2022-11-03 02:23:42,236 INFO L226 Difference]: Without dead ends: 1049 [2022-11-03 02:23:42,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:42,237 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 1931 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:42,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 3071 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:23:42,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2022-11-03 02:23:42,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 467. [2022-11-03 02:23:42,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 466 states have (on average 1.3562231759656653) internal successors, (632), 466 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:42,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 632 transitions. [2022-11-03 02:23:42,247 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 632 transitions. Word has length 296 [2022-11-03 02:23:42,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:42,248 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 632 transitions. [2022-11-03 02:23:42,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 632 transitions. [2022-11-03 02:23:42,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:42,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:42,250 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:42,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (56)] Ended with exit code 0 [2022-11-03 02:23:42,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:42,467 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:42,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:42,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1597132753, now seen corresponding path program 1 times [2022-11-03 02:23:42,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:42,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591494330] [2022-11-03 02:23:42,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:42,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:42,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:42,470 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:42,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-03 02:23:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:43,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 02:23:43,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:43,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:43,995 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:43,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591494330] [2022-11-03 02:23:43,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591494330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:43,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:43,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:43,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545493330] [2022-11-03 02:23:43,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:43,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:43,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:43,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:43,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:43,997 INFO L87 Difference]: Start difference. First operand 467 states and 632 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:44,703 INFO L93 Difference]: Finished difference Result 1342 states and 1936 transitions. [2022-11-03 02:23:44,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:44,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:44,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:44,707 INFO L225 Difference]: With dead ends: 1342 [2022-11-03 02:23:44,707 INFO L226 Difference]: Without dead ends: 1049 [2022-11-03 02:23:44,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:44,708 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 1923 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 3064 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:44,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 3064 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:23:44,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2022-11-03 02:23:44,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 469. [2022-11-03 02:23:44,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 1.3547008547008548) internal successors, (634), 468 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 634 transitions. [2022-11-03 02:23:44,718 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 634 transitions. Word has length 296 [2022-11-03 02:23:44,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:44,719 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 634 transitions. [2022-11-03 02:23:44,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:44,719 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 634 transitions. [2022-11-03 02:23:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:44,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:44,721 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:44,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Ended with exit code 0 [2022-11-03 02:23:44,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:44,935 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:44,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:44,935 INFO L85 PathProgramCache]: Analyzing trace with hash -150551887, now seen corresponding path program 1 times [2022-11-03 02:23:44,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:44,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387588939] [2022-11-03 02:23:44,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:44,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:44,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:44,939 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:44,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2022-11-03 02:23:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:45,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:23:45,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:46,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:46,483 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:46,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387588939] [2022-11-03 02:23:46,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1387588939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:46,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:46,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:46,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904627539] [2022-11-03 02:23:46,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:46,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:46,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:46,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:46,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:46,484 INFO L87 Difference]: Start difference. First operand 469 states and 634 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:47,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:47,088 INFO L93 Difference]: Finished difference Result 1350 states and 1947 transitions. [2022-11-03 02:23:47,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:47,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:47,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:47,091 INFO L225 Difference]: With dead ends: 1350 [2022-11-03 02:23:47,091 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:23:47,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:47,091 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 1919 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:47,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 3057 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:23:47,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:23:47,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 475. [2022-11-03 02:23:47,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.3544303797468353) internal successors, (642), 474 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 642 transitions. [2022-11-03 02:23:47,097 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 642 transitions. Word has length 296 [2022-11-03 02:23:47,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:47,097 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 642 transitions. [2022-11-03 02:23:47,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:47,097 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 642 transitions. [2022-11-03 02:23:47,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:47,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:47,098 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:47,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:47,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:47,303 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:47,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:47,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1746427571, now seen corresponding path program 1 times [2022-11-03 02:23:47,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:47,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990356911] [2022-11-03 02:23:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:47,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:47,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:47,305 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:47,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-03 02:23:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:48,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:23:48,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:48,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:48,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:48,816 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:48,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990356911] [2022-11-03 02:23:48,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990356911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:48,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:48,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:48,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439972916] [2022-11-03 02:23:48,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:48,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:48,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:48,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:48,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:48,818 INFO L87 Difference]: Start difference. First operand 475 states and 642 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:49,421 INFO L93 Difference]: Finished difference Result 1350 states and 1946 transitions. [2022-11-03 02:23:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:49,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:49,424 INFO L225 Difference]: With dead ends: 1350 [2022-11-03 02:23:49,424 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:23:49,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:49,426 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 1911 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:49,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 3050 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:23:49,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:23:49,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 477. [2022-11-03 02:23:49,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 1.3529411764705883) internal successors, (644), 476 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 644 transitions. [2022-11-03 02:23:49,436 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 644 transitions. Word has length 296 [2022-11-03 02:23:49,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:49,436 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 644 transitions. [2022-11-03 02:23:49,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:49,441 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 644 transitions. [2022-11-03 02:23:49,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:49,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:49,443 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:49,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:49,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:49,659 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:49,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:49,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2121985227, now seen corresponding path program 1 times [2022-11-03 02:23:49,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:49,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826004130] [2022-11-03 02:23:49,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:49,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:49,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:49,662 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:49,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-11-03 02:23:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:50,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:23:50,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:51,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:51,515 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:51,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826004130] [2022-11-03 02:23:51,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826004130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:51,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:51,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:51,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886241249] [2022-11-03 02:23:51,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:51,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:51,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:51,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:51,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:51,517 INFO L87 Difference]: Start difference. First operand 477 states and 644 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:51,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:51,765 INFO L93 Difference]: Finished difference Result 1350 states and 1945 transitions. [2022-11-03 02:23:51,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:23:51,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:51,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:51,767 INFO L225 Difference]: With dead ends: 1350 [2022-11-03 02:23:51,767 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:23:51,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:23:51,768 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 1326 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 111 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:51,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 2820 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 111 Unchecked, 0.2s Time] [2022-11-03 02:23:51,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:23:51,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 479. [2022-11-03 02:23:51,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 478 states have (on average 1.3514644351464435) internal successors, (646), 478 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:51,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 646 transitions. [2022-11-03 02:23:51,775 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 646 transitions. Word has length 296 [2022-11-03 02:23:51,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:51,775 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 646 transitions. [2022-11-03 02:23:51,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:51,775 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 646 transitions. [2022-11-03 02:23:51,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:51,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:51,777 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:51,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (60)] Ended with exit code 0 [2022-11-03 02:23:51,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:51,977 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:51,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:51,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2017001527, now seen corresponding path program 1 times [2022-11-03 02:23:51,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:51,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759252146] [2022-11-03 02:23:51,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:51,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:51,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:51,981 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:51,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-03 02:23:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:52,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:23:52,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:53,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:53,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:53,999 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:53,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759252146] [2022-11-03 02:23:53,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759252146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:53,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:54,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:23:54,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135898047] [2022-11-03 02:23:54,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:54,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:23:54,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:54,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:23:54,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:23:54,002 INFO L87 Difference]: Start difference. First operand 479 states and 646 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:54,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:54,303 INFO L93 Difference]: Finished difference Result 1066 states and 1521 transitions. [2022-11-03 02:23:54,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:23:54,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:54,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:54,305 INFO L225 Difference]: With dead ends: 1066 [2022-11-03 02:23:54,305 INFO L226 Difference]: Without dead ends: 773 [2022-11-03 02:23:54,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:54,305 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 473 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:54,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1980 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 51 Unchecked, 0.3s Time] [2022-11-03 02:23:54,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-11-03 02:23:54,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 481. [2022-11-03 02:23:54,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.35) internal successors, (648), 480 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 648 transitions. [2022-11-03 02:23:54,312 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 648 transitions. Word has length 296 [2022-11-03 02:23:54,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:54,312 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 648 transitions. [2022-11-03 02:23:54,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:54,313 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 648 transitions. [2022-11-03 02:23:54,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:54,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:54,314 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:54,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Ended with exit code 0 [2022-11-03 02:23:54,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:54,515 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:54,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:54,516 INFO L85 PathProgramCache]: Analyzing trace with hash 229131705, now seen corresponding path program 1 times [2022-11-03 02:23:54,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:54,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889361181] [2022-11-03 02:23:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:54,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:54,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:54,519 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:54,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-11-03 02:23:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:55,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:23:55,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:56,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:56,143 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:56,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889361181] [2022-11-03 02:23:56,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889361181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:56,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:56,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:56,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133701477] [2022-11-03 02:23:56,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:56,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:56,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:56,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:56,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:56,144 INFO L87 Difference]: Start difference. First operand 481 states and 648 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:56,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:56,778 INFO L93 Difference]: Finished difference Result 1358 states and 1955 transitions. [2022-11-03 02:23:56,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:56,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:56,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:56,784 INFO L225 Difference]: With dead ends: 1358 [2022-11-03 02:23:56,784 INFO L226 Difference]: Without dead ends: 1065 [2022-11-03 02:23:56,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:56,785 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 1902 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 3041 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:56,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1902 Valid, 3041 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:23:56,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2022-11-03 02:23:56,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 483. [2022-11-03 02:23:56,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.3485477178423237) internal successors, (650), 482 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:56,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 650 transitions. [2022-11-03 02:23:56,791 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 650 transitions. Word has length 296 [2022-11-03 02:23:56,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:56,791 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 650 transitions. [2022-11-03 02:23:56,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 650 transitions. [2022-11-03 02:23:56,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:56,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:56,793 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:56,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (62)] Ended with exit code 0 [2022-11-03 02:23:56,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:56,993 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:56,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:56,994 INFO L85 PathProgramCache]: Analyzing trace with hash 298779579, now seen corresponding path program 1 times [2022-11-03 02:23:56,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:56,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480793441] [2022-11-03 02:23:56,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:56,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:56,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:56,996 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:56,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-03 02:23:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:57,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:23:57,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:58,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:58,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:58,594 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:58,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480793441] [2022-11-03 02:23:58,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480793441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:58,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:58,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:58,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461137104] [2022-11-03 02:23:58,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:58,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:58,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:58,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:58,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:58,596 INFO L87 Difference]: Start difference. First operand 483 states and 650 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:59,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:59,229 INFO L93 Difference]: Finished difference Result 1358 states and 1954 transitions. [2022-11-03 02:23:59,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:59,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:23:59,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:59,231 INFO L225 Difference]: With dead ends: 1358 [2022-11-03 02:23:59,231 INFO L226 Difference]: Without dead ends: 1065 [2022-11-03 02:23:59,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:23:59,232 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 1894 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 3034 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:59,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1894 Valid, 3034 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:23:59,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2022-11-03 02:23:59,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 485. [2022-11-03 02:23:59,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 1.3471074380165289) internal successors, (652), 484 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:59,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 652 transitions. [2022-11-03 02:23:59,241 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 652 transitions. Word has length 296 [2022-11-03 02:23:59,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:59,241 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 652 transitions. [2022-11-03 02:23:59,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:59,241 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 652 transitions. [2022-11-03 02:23:59,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:23:59,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:59,243 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:59,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Ended with exit code 0 [2022-11-03 02:23:59,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:59,444 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:59,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:59,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1697733181, now seen corresponding path program 1 times [2022-11-03 02:23:59,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:59,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955348684] [2022-11-03 02:23:59,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:59,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:59,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:59,447 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:59,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2022-11-03 02:24:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:00,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:24:00,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:01,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:01,352 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:01,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955348684] [2022-11-03 02:24:01,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955348684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:01,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:01,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:01,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654436721] [2022-11-03 02:24:01,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:01,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:01,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:01,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:01,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:01,354 INFO L87 Difference]: Start difference. First operand 485 states and 652 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:01,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:01,642 INFO L93 Difference]: Finished difference Result 1358 states and 1953 transitions. [2022-11-03 02:24:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:24:01,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:01,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:01,643 INFO L225 Difference]: With dead ends: 1358 [2022-11-03 02:24:01,644 INFO L226 Difference]: Without dead ends: 1065 [2022-11-03 02:24:01,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:24:01,645 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1326 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 2854 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 83 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:01,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 2854 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 83 Unchecked, 0.2s Time] [2022-11-03 02:24:01,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2022-11-03 02:24:01,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 487. [2022-11-03 02:24:01,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 486 states have (on average 1.345679012345679) internal successors, (654), 486 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 654 transitions. [2022-11-03 02:24:01,655 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 654 transitions. Word has length 296 [2022-11-03 02:24:01,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:01,656 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 654 transitions. [2022-11-03 02:24:01,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:01,656 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 654 transitions. [2022-11-03 02:24:01,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:01,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:01,658 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:01,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (64)] Ended with exit code 0 [2022-11-03 02:24:01,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:01,867 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:01,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:01,867 INFO L85 PathProgramCache]: Analyzing trace with hash 2061199679, now seen corresponding path program 1 times [2022-11-03 02:24:01,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:01,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33482846] [2022-11-03 02:24:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:01,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:01,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:01,870 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:01,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-03 02:24:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:02,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:24:02,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:03,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:03,807 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:03,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33482846] [2022-11-03 02:24:03,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33482846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:03,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:03,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:24:03,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241457400] [2022-11-03 02:24:03,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:03,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:03,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:03,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:03,810 INFO L87 Difference]: Start difference. First operand 487 states and 654 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:04,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:04,084 INFO L93 Difference]: Finished difference Result 1074 states and 1529 transitions. [2022-11-03 02:24:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:24:04,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:04,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:04,086 INFO L225 Difference]: With dead ends: 1074 [2022-11-03 02:24:04,086 INFO L226 Difference]: Without dead ends: 781 [2022-11-03 02:24:04,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:04,087 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 473 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:04,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1982 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 80 Unchecked, 0.2s Time] [2022-11-03 02:24:04,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-11-03 02:24:04,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 489. [2022-11-03 02:24:04,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 1.3442622950819672) internal successors, (656), 488 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 656 transitions. [2022-11-03 02:24:04,097 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 656 transitions. Word has length 296 [2022-11-03 02:24:04,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:04,097 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 656 transitions. [2022-11-03 02:24:04,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:04,098 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 656 transitions. [2022-11-03 02:24:04,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:04,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:04,100 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:04,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:04,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:04,311 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:04,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1516327105, now seen corresponding path program 1 times [2022-11-03 02:24:04,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:04,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341719402] [2022-11-03 02:24:04,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:04,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:04,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:04,314 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:04,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-11-03 02:24:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:05,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:24:05,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:06,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:06,025 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:06,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341719402] [2022-11-03 02:24:06,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341719402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:06,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:06,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:06,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227983964] [2022-11-03 02:24:06,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:06,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:06,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:06,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:06,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:06,027 INFO L87 Difference]: Start difference. First operand 489 states and 656 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:06,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:06,754 INFO L93 Difference]: Finished difference Result 1366 states and 1963 transitions. [2022-11-03 02:24:06,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:24:06,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:06,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:06,756 INFO L225 Difference]: With dead ends: 1366 [2022-11-03 02:24:06,756 INFO L226 Difference]: Without dead ends: 1073 [2022-11-03 02:24:06,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:24:06,757 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 1881 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:06,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1881 Valid, 3019 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:24:06,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-11-03 02:24:06,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 493. [2022-11-03 02:24:06,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 492 states have (on average 1.3434959349593496) internal successors, (661), 492 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 661 transitions. [2022-11-03 02:24:06,763 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 661 transitions. Word has length 296 [2022-11-03 02:24:06,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:06,764 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 661 transitions. [2022-11-03 02:24:06,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:06,764 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 661 transitions. [2022-11-03 02:24:06,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:06,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:06,765 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:06,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (66)] Ended with exit code 0 [2022-11-03 02:24:06,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:06,966 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:06,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:06,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1081821507, now seen corresponding path program 1 times [2022-11-03 02:24:06,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:06,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744936200] [2022-11-03 02:24:06,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:06,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:06,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:06,969 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:06,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-03 02:24:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:07,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:24:07,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:08,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:08,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:08,938 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:08,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744936200] [2022-11-03 02:24:08,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744936200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:08,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:08,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:08,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360774832] [2022-11-03 02:24:08,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:08,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:08,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:08,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:08,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:08,940 INFO L87 Difference]: Start difference. First operand 493 states and 661 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:09,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:09,214 INFO L93 Difference]: Finished difference Result 1366 states and 1962 transitions. [2022-11-03 02:24:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:24:09,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:09,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:09,216 INFO L225 Difference]: With dead ends: 1366 [2022-11-03 02:24:09,216 INFO L226 Difference]: Without dead ends: 1073 [2022-11-03 02:24:09,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:24:09,217 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 1327 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:09,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2845 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 79 Unchecked, 0.2s Time] [2022-11-03 02:24:09,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-11-03 02:24:09,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 495. [2022-11-03 02:24:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.3421052631578947) internal successors, (663), 494 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 663 transitions. [2022-11-03 02:24:09,223 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 663 transitions. Word has length 296 [2022-11-03 02:24:09,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:09,224 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 663 transitions. [2022-11-03 02:24:09,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:09,224 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 663 transitions. [2022-11-03 02:24:09,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:09,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:09,225 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:09,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Ended with exit code 0 [2022-11-03 02:24:09,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:09,426 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:09,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:09,426 INFO L85 PathProgramCache]: Analyzing trace with hash 375224901, now seen corresponding path program 1 times [2022-11-03 02:24:09,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:09,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453631412] [2022-11-03 02:24:09,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:09,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:09,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:09,429 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:09,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2022-11-03 02:24:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:10,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:24:10,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:11,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:11,476 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:11,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453631412] [2022-11-03 02:24:11,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453631412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:11,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:11,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:24:11,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205200084] [2022-11-03 02:24:11,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:11,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:11,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:11,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:11,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:11,478 INFO L87 Difference]: Start difference. First operand 495 states and 663 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:11,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:11,709 INFO L93 Difference]: Finished difference Result 1082 states and 1538 transitions. [2022-11-03 02:24:11,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:24:11,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:11,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:11,710 INFO L225 Difference]: With dead ends: 1082 [2022-11-03 02:24:11,710 INFO L226 Difference]: Without dead ends: 789 [2022-11-03 02:24:11,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:11,711 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 474 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:11,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 2010 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 52 Unchecked, 0.2s Time] [2022-11-03 02:24:11,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-03 02:24:11,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 497. [2022-11-03 02:24:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.340725806451613) internal successors, (665), 496 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:11,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 665 transitions. [2022-11-03 02:24:11,718 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 665 transitions. Word has length 296 [2022-11-03 02:24:11,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:11,719 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 665 transitions. [2022-11-03 02:24:11,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:11,719 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 665 transitions. [2022-11-03 02:24:11,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:11,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:11,720 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:11,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (68)] Ended with exit code 0 [2022-11-03 02:24:11,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:11,921 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:11,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:11,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1237058503, now seen corresponding path program 1 times [2022-11-03 02:24:11,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:11,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435153967] [2022-11-03 02:24:11,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:11,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:11,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:11,924 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:11,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-11-03 02:24:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:12,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:24:12,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:13,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:13,554 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:13,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435153967] [2022-11-03 02:24:13,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435153967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:13,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:13,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:13,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540541630] [2022-11-03 02:24:13,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:13,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:13,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:13,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:13,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:13,555 INFO L87 Difference]: Start difference. First operand 497 states and 665 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:14,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:14,207 INFO L93 Difference]: Finished difference Result 1374 states and 1972 transitions. [2022-11-03 02:24:14,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:24:14,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:14,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:14,210 INFO L225 Difference]: With dead ends: 1374 [2022-11-03 02:24:14,210 INFO L226 Difference]: Without dead ends: 1081 [2022-11-03 02:24:14,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:24:14,211 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 1872 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:14,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 3010 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:24:14,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-11-03 02:24:14,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 499. [2022-11-03 02:24:14,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 498 states have (on average 1.3393574297188755) internal successors, (667), 498 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 667 transitions. [2022-11-03 02:24:14,217 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 667 transitions. Word has length 296 [2022-11-03 02:24:14,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:14,217 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 667 transitions. [2022-11-03 02:24:14,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:14,217 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 667 transitions. [2022-11-03 02:24:14,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:14,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:14,219 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:14,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Ended with exit code 0 [2022-11-03 02:24:14,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:14,419 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:14,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:14,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1725105609, now seen corresponding path program 1 times [2022-11-03 02:24:14,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:14,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362578091] [2022-11-03 02:24:14,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:14,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:14,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:14,422 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:14,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2022-11-03 02:24:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:15,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:24:15,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:15,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:15,981 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:15,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362578091] [2022-11-03 02:24:15,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362578091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:15,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:15,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:15,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443143901] [2022-11-03 02:24:15,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:15,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:15,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:15,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:15,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:15,983 INFO L87 Difference]: Start difference. First operand 499 states and 667 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:16,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:16,589 INFO L93 Difference]: Finished difference Result 1374 states and 1971 transitions. [2022-11-03 02:24:16,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:24:16,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:16,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:16,592 INFO L225 Difference]: With dead ends: 1374 [2022-11-03 02:24:16,592 INFO L226 Difference]: Without dead ends: 1081 [2022-11-03 02:24:16,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:24:16,592 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 1864 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:16,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 3003 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:24:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-11-03 02:24:16,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 501. [2022-11-03 02:24:16,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.338) internal successors, (669), 500 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:16,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 669 transitions. [2022-11-03 02:24:16,603 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 669 transitions. Word has length 296 [2022-11-03 02:24:16,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:16,603 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 669 transitions. [2022-11-03 02:24:16,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:16,604 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 669 transitions. [2022-11-03 02:24:16,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:16,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:16,606 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:16,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (70)] Ended with exit code 0 [2022-11-03 02:24:16,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:16,819 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:16,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:16,819 INFO L85 PathProgramCache]: Analyzing trace with hash 442933323, now seen corresponding path program 1 times [2022-11-03 02:24:16,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:16,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834931161] [2022-11-03 02:24:16,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:16,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:16,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:16,821 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:16,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-03 02:24:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:17,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:24:17,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:18,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:18,737 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:18,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834931161] [2022-11-03 02:24:18,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834931161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:18,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:18,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:18,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939599402] [2022-11-03 02:24:18,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:18,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:18,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:18,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:18,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:18,738 INFO L87 Difference]: Start difference. First operand 501 states and 669 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:19,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:19,001 INFO L93 Difference]: Finished difference Result 1374 states and 1970 transitions. [2022-11-03 02:24:19,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:24:19,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:19,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:19,003 INFO L225 Difference]: With dead ends: 1374 [2022-11-03 02:24:19,003 INFO L226 Difference]: Without dead ends: 1081 [2022-11-03 02:24:19,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:24:19,005 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 1327 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 99 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:19,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2881 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 99 Unchecked, 0.2s Time] [2022-11-03 02:24:19,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-11-03 02:24:19,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 503. [2022-11-03 02:24:19,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 502 states have (on average 1.3366533864541832) internal successors, (671), 502 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 671 transitions. [2022-11-03 02:24:19,016 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 671 transitions. Word has length 296 [2022-11-03 02:24:19,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:19,016 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 671 transitions. [2022-11-03 02:24:19,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 671 transitions. [2022-11-03 02:24:19,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:19,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:19,018 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:19,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Ended with exit code 0 [2022-11-03 02:24:19,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:19,235 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:19,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:19,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1279069363, now seen corresponding path program 1 times [2022-11-03 02:24:19,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:19,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916157423] [2022-11-03 02:24:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:19,237 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:19,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:19,238 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:19,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2022-11-03 02:24:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:20,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:24:20,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:21,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:21,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:21,021 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:21,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916157423] [2022-11-03 02:24:21,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916157423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:21,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:21,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:21,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191618524] [2022-11-03 02:24:21,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:21,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:21,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:21,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:21,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:21,023 INFO L87 Difference]: Start difference. First operand 503 states and 671 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:21,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:21,735 INFO L93 Difference]: Finished difference Result 1382 states and 1981 transitions. [2022-11-03 02:24:21,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:24:21,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:21,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:21,738 INFO L225 Difference]: With dead ends: 1382 [2022-11-03 02:24:21,738 INFO L226 Difference]: Without dead ends: 1089 [2022-11-03 02:24:21,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:24:21,739 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 1859 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 2995 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:21,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 2995 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:24:21,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2022-11-03 02:24:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 507. [2022-11-03 02:24:21,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 506 states have (on average 1.3359683794466404) internal successors, (676), 506 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 676 transitions. [2022-11-03 02:24:21,746 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 676 transitions. Word has length 296 [2022-11-03 02:24:21,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:21,746 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 676 transitions. [2022-11-03 02:24:21,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:21,747 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 676 transitions. [2022-11-03 02:24:21,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:21,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:21,748 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:21,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (72)] Ended with exit code 0 [2022-11-03 02:24:21,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:21,949 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:21,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:21,949 INFO L85 PathProgramCache]: Analyzing trace with hash 448075599, now seen corresponding path program 1 times [2022-11-03 02:24:21,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:21,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935933985] [2022-11-03 02:24:21,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:21,951 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:21,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:21,952 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:21,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-03 02:24:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:22,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:24:22,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:23,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:23,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:23,813 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:23,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935933985] [2022-11-03 02:24:23,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935933985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:23,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:23,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:23,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102029734] [2022-11-03 02:24:23,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:23,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:23,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:23,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:23,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:23,815 INFO L87 Difference]: Start difference. First operand 507 states and 676 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:24,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:24,520 INFO L93 Difference]: Finished difference Result 1382 states and 1980 transitions. [2022-11-03 02:24:24,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:24:24,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:24,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:24,524 INFO L225 Difference]: With dead ends: 1382 [2022-11-03 02:24:24,524 INFO L226 Difference]: Without dead ends: 1089 [2022-11-03 02:24:24,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:24:24,525 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 1851 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:24,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 2988 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:24:24,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2022-11-03 02:24:24,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 509. [2022-11-03 02:24:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 508 states have (on average 1.3346456692913387) internal successors, (678), 508 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 678 transitions. [2022-11-03 02:24:24,537 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 678 transitions. Word has length 296 [2022-11-03 02:24:24,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:24,538 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 678 transitions. [2022-11-03 02:24:24,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:24,538 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 678 transitions. [2022-11-03 02:24:24,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:24,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:24,540 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:24,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:24,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:24,742 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:24,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:24,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1199287343, now seen corresponding path program 1 times [2022-11-03 02:24:24,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:24,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297486371] [2022-11-03 02:24:24,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:24,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:24,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:24,745 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:24,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2022-11-03 02:24:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:25,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:24:25,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:26,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:26,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:26,792 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:26,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297486371] [2022-11-03 02:24:26,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297486371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:26,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:26,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:26,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488012390] [2022-11-03 02:24:26,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:26,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:26,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:26,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:26,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:26,794 INFO L87 Difference]: Start difference. First operand 509 states and 678 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:27,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:27,031 INFO L93 Difference]: Finished difference Result 1382 states and 1979 transitions. [2022-11-03 02:24:27,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:24:27,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:27,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:27,032 INFO L225 Difference]: With dead ends: 1382 [2022-11-03 02:24:27,033 INFO L226 Difference]: Without dead ends: 1089 [2022-11-03 02:24:27,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:24:27,033 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 1328 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 2901 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 118 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:27,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 2901 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 118 Unchecked, 0.2s Time] [2022-11-03 02:24:27,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2022-11-03 02:24:27,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 511. [2022-11-03 02:24:27,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 510 states have (on average 1.3333333333333333) internal successors, (680), 510 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:27,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 680 transitions. [2022-11-03 02:24:27,038 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 680 transitions. Word has length 296 [2022-11-03 02:24:27,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:27,039 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 680 transitions. [2022-11-03 02:24:27,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 680 transitions. [2022-11-03 02:24:27,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:27,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:27,040 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:27,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (74)] Ended with exit code 0 [2022-11-03 02:24:27,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:27,241 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:27,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:27,241 INFO L85 PathProgramCache]: Analyzing trace with hash 2057095379, now seen corresponding path program 1 times [2022-11-03 02:24:27,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:27,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712086159] [2022-11-03 02:24:27,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:27,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:27,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:27,243 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:27,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-11-03 02:24:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:27,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:24:27,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:29,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:29,089 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:29,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712086159] [2022-11-03 02:24:29,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712086159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:29,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:29,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:24:29,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374825271] [2022-11-03 02:24:29,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:29,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:29,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:29,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:29,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:29,090 INFO L87 Difference]: Start difference. First operand 511 states and 680 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:29,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:29,299 INFO L93 Difference]: Finished difference Result 1098 states and 1555 transitions. [2022-11-03 02:24:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:24:29,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:29,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:29,300 INFO L225 Difference]: With dead ends: 1098 [2022-11-03 02:24:29,300 INFO L226 Difference]: Without dead ends: 805 [2022-11-03 02:24:29,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:29,301 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 475 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:29,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 2025 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 70 Unchecked, 0.2s Time] [2022-11-03 02:24:29,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2022-11-03 02:24:29,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 513. [2022-11-03 02:24:29,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 512 states have (on average 1.33203125) internal successors, (682), 512 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:29,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 682 transitions. [2022-11-03 02:24:29,306 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 682 transitions. Word has length 296 [2022-11-03 02:24:29,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:29,306 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 682 transitions. [2022-11-03 02:24:29,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:29,306 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 682 transitions. [2022-11-03 02:24:29,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:29,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:29,308 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:29,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:29,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:29,509 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:29,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:29,509 INFO L85 PathProgramCache]: Analyzing trace with hash -84765099, now seen corresponding path program 1 times [2022-11-03 02:24:29,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:29,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566288656] [2022-11-03 02:24:29,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:29,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:29,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:29,511 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:29,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2022-11-03 02:24:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:30,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:24:30,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:31,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:31,034 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:31,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566288656] [2022-11-03 02:24:31,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566288656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:31,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:31,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:31,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136324912] [2022-11-03 02:24:31,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:31,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:31,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:31,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:31,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:31,035 INFO L87 Difference]: Start difference. First operand 513 states and 682 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:31,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:31,605 INFO L93 Difference]: Finished difference Result 1390 states and 1989 transitions. [2022-11-03 02:24:31,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:24:31,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:31,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:31,607 INFO L225 Difference]: With dead ends: 1390 [2022-11-03 02:24:31,607 INFO L226 Difference]: Without dead ends: 1097 [2022-11-03 02:24:31,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:24:31,608 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 1842 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:31,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 2983 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:24:31,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2022-11-03 02:24:31,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 515. [2022-11-03 02:24:31,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.3307392996108949) internal successors, (684), 514 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:31,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 684 transitions. [2022-11-03 02:24:31,615 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 684 transitions. Word has length 296 [2022-11-03 02:24:31,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:31,615 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 684 transitions. [2022-11-03 02:24:31,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:31,615 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 684 transitions. [2022-11-03 02:24:31,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:31,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:31,616 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:31,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (76)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:31,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:31,817 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:31,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:31,817 INFO L85 PathProgramCache]: Analyzing trace with hash 33676375, now seen corresponding path program 1 times [2022-11-03 02:24:31,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:31,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391114702] [2022-11-03 02:24:31,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:31,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:31,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:31,819 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:31,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-03 02:24:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:32,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:24:32,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:33,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:33,346 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:33,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391114702] [2022-11-03 02:24:33,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391114702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:33,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:33,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:33,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465741959] [2022-11-03 02:24:33,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:33,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:33,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:33,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:33,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:33,347 INFO L87 Difference]: Start difference. First operand 515 states and 684 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:33,945 INFO L93 Difference]: Finished difference Result 1390 states and 1988 transitions. [2022-11-03 02:24:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:24:33,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:33,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:33,947 INFO L225 Difference]: With dead ends: 1390 [2022-11-03 02:24:33,947 INFO L226 Difference]: Without dead ends: 1097 [2022-11-03 02:24:33,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:24:33,948 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 1834 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1834 SdHoareTripleChecker+Valid, 2976 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:33,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1834 Valid, 2976 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:24:33,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2022-11-03 02:24:33,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 517. [2022-11-03 02:24:33,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 516 states have (on average 1.3294573643410852) internal successors, (686), 516 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:33,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 686 transitions. [2022-11-03 02:24:33,958 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 686 transitions. Word has length 296 [2022-11-03 02:24:33,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:33,958 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 686 transitions. [2022-11-03 02:24:33,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:33,958 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 686 transitions. [2022-11-03 02:24:33,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:33,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:33,960 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:33,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:34,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:34,174 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:34,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:34,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1999717671, now seen corresponding path program 1 times [2022-11-03 02:24:34,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:34,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876330904] [2022-11-03 02:24:34,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:34,176 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:34,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:34,177 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:34,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2022-11-03 02:24:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:34,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:24:34,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:36,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:36,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:36,184 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:36,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876330904] [2022-11-03 02:24:36,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876330904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:36,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:36,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:36,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826711262] [2022-11-03 02:24:36,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:36,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:36,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:36,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:36,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:36,186 INFO L87 Difference]: Start difference. First operand 517 states and 686 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:36,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:36,466 INFO L93 Difference]: Finished difference Result 1390 states and 1987 transitions. [2022-11-03 02:24:36,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:24:36,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:36,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:36,467 INFO L225 Difference]: With dead ends: 1390 [2022-11-03 02:24:36,468 INFO L226 Difference]: Without dead ends: 1097 [2022-11-03 02:24:36,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:24:36,468 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 1328 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 2913 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:36,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 2913 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 55 Unchecked, 0.2s Time] [2022-11-03 02:24:36,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2022-11-03 02:24:36,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 519. [2022-11-03 02:24:36,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 518 states have (on average 1.3281853281853282) internal successors, (688), 518 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 688 transitions. [2022-11-03 02:24:36,476 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 688 transitions. Word has length 296 [2022-11-03 02:24:36,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:36,476 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 688 transitions. [2022-11-03 02:24:36,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:36,476 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 688 transitions. [2022-11-03 02:24:36,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:36,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:36,478 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:36,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (78)] Ended with exit code 0 [2022-11-03 02:24:36,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:36,679 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:36,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:36,679 INFO L85 PathProgramCache]: Analyzing trace with hash 988107227, now seen corresponding path program 1 times [2022-11-03 02:24:36,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:36,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371435190] [2022-11-03 02:24:36,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:36,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:36,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:36,682 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:36,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-03 02:24:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:37,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:24:37,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:38,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:38,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:38,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371435190] [2022-11-03 02:24:38,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371435190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:38,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:38,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:24:38,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619814548] [2022-11-03 02:24:38,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:38,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:38,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:38,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:38,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:38,683 INFO L87 Difference]: Start difference. First operand 519 states and 688 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:38,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:38,920 INFO L93 Difference]: Finished difference Result 1106 states and 1563 transitions. [2022-11-03 02:24:38,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:24:38,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:38,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:38,921 INFO L225 Difference]: With dead ends: 1106 [2022-11-03 02:24:38,921 INFO L226 Difference]: Without dead ends: 813 [2022-11-03 02:24:38,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:38,922 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 475 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:38,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 2053 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 57 Unchecked, 0.2s Time] [2022-11-03 02:24:38,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2022-11-03 02:24:38,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 521. [2022-11-03 02:24:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 520 states have (on average 1.3269230769230769) internal successors, (690), 520 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 690 transitions. [2022-11-03 02:24:38,928 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 690 transitions. Word has length 296 [2022-11-03 02:24:38,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:38,928 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 690 transitions. [2022-11-03 02:24:38,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:38,929 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 690 transitions. [2022-11-03 02:24:38,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:38,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:38,932 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:38,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Ended with exit code 0 [2022-11-03 02:24:39,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:39,132 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:39,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:39,133 INFO L85 PathProgramCache]: Analyzing trace with hash 2019148125, now seen corresponding path program 1 times [2022-11-03 02:24:39,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:39,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366573340] [2022-11-03 02:24:39,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:39,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:39,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:39,135 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:39,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2022-11-03 02:24:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:39,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:24:39,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:41,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:41,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:41,683 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:41,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366573340] [2022-11-03 02:24:41,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366573340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:41,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:41,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:41,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681061725] [2022-11-03 02:24:41,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:41,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:41,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:41,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:41,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:41,686 INFO L87 Difference]: Start difference. First operand 521 states and 690 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:41,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:41,997 INFO L93 Difference]: Finished difference Result 1398 states and 1997 transitions. [2022-11-03 02:24:41,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:24:41,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:41,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:41,999 INFO L225 Difference]: With dead ends: 1398 [2022-11-03 02:24:41,999 INFO L226 Difference]: Without dead ends: 1105 [2022-11-03 02:24:41,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:24:41,999 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 1335 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 106 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:41,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 2890 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 106 Unchecked, 0.3s Time] [2022-11-03 02:24:42,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2022-11-03 02:24:42,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 525. [2022-11-03 02:24:42,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 524 states have (on average 1.3263358778625953) internal successors, (695), 524 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:42,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 695 transitions. [2022-11-03 02:24:42,005 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 695 transitions. Word has length 296 [2022-11-03 02:24:42,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:42,006 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 695 transitions. [2022-11-03 02:24:42,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:42,006 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 695 transitions. [2022-11-03 02:24:42,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:42,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:42,007 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:42,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (80)] Ended with exit code 0 [2022-11-03 02:24:42,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:42,208 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:42,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:42,208 INFO L85 PathProgramCache]: Analyzing trace with hash -924433953, now seen corresponding path program 1 times [2022-11-03 02:24:42,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:42,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255692228] [2022-11-03 02:24:42,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:42,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:42,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:42,212 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:42,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-11-03 02:24:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:42,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:24:42,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:44,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:44,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:44,176 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:44,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255692228] [2022-11-03 02:24:44,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255692228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:44,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:44,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:44,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457295014] [2022-11-03 02:24:44,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:44,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:44,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:44,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:44,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:44,177 INFO L87 Difference]: Start difference. First operand 525 states and 695 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:44,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:44,456 INFO L93 Difference]: Finished difference Result 1398 states and 1996 transitions. [2022-11-03 02:24:44,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:24:44,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:44,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:44,457 INFO L225 Difference]: With dead ends: 1398 [2022-11-03 02:24:44,457 INFO L226 Difference]: Without dead ends: 1105 [2022-11-03 02:24:44,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:24:44,458 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 1329 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:44,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 2930 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 56 Unchecked, 0.2s Time] [2022-11-03 02:24:44,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2022-11-03 02:24:44,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 527. [2022-11-03 02:24:44,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.3250950570342206) internal successors, (697), 526 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:44,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 697 transitions. [2022-11-03 02:24:44,464 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 697 transitions. Word has length 296 [2022-11-03 02:24:44,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:44,465 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 697 transitions. [2022-11-03 02:24:44,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:44,465 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 697 transitions. [2022-11-03 02:24:44,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:44,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:44,467 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:44,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Ended with exit code 0 [2022-11-03 02:24:44,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:44,667 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:44,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:44,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1807942943, now seen corresponding path program 1 times [2022-11-03 02:24:44,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:44,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874985122] [2022-11-03 02:24:44,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:44,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:44,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:44,671 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:44,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2022-11-03 02:24:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:45,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:24:45,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:46,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:46,673 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:46,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874985122] [2022-11-03 02:24:46,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874985122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:46,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:46,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:46,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510447880] [2022-11-03 02:24:46,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:46,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:46,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:46,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:46,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:46,675 INFO L87 Difference]: Start difference. First operand 527 states and 697 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:47,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:47,481 INFO L93 Difference]: Finished difference Result 1414 states and 2019 transitions. [2022-11-03 02:24:47,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:24:47,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:47,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:47,484 INFO L225 Difference]: With dead ends: 1414 [2022-11-03 02:24:47,484 INFO L226 Difference]: Without dead ends: 1121 [2022-11-03 02:24:47,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:24:47,485 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 1799 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:47,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1799 Valid, 2695 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 02:24:47,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2022-11-03 02:24:47,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 539. [2022-11-03 02:24:47,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 538 states have (on average 1.3271375464684014) internal successors, (714), 538 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:47,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 714 transitions. [2022-11-03 02:24:47,494 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 714 transitions. Word has length 296 [2022-11-03 02:24:47,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:47,494 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 714 transitions. [2022-11-03 02:24:47,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:47,495 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 714 transitions. [2022-11-03 02:24:47,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:47,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:47,497 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:47,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:47,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:47,703 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:47,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:47,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1429186275, now seen corresponding path program 1 times [2022-11-03 02:24:47,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:47,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928432890] [2022-11-03 02:24:47,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:47,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:47,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:47,706 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:47,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-03 02:24:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:48,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:24:48,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:50,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:50,075 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:50,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928432890] [2022-11-03 02:24:50,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928432890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:50,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:50,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:24:50,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709160716] [2022-11-03 02:24:50,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:50,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:24:50,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:50,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:24:50,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:24:50,077 INFO L87 Difference]: Start difference. First operand 539 states and 714 transitions. Second operand has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:51,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:51,117 INFO L93 Difference]: Finished difference Result 1078 states and 1472 transitions. [2022-11-03 02:24:51,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:24:51,117 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:51,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:51,120 INFO L225 Difference]: With dead ends: 1078 [2022-11-03 02:24:51,120 INFO L226 Difference]: Without dead ends: 785 [2022-11-03 02:24:51,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:24:51,121 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 2172 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 47 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:51,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 3858 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 287 Invalid, 0 Unknown, 47 Unchecked, 0.7s Time] [2022-11-03 02:24:51,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2022-11-03 02:24:51,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 671. [2022-11-03 02:24:51,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 670 states have (on average 1.2925373134328357) internal successors, (866), 670 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 866 transitions. [2022-11-03 02:24:51,146 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 866 transitions. Word has length 296 [2022-11-03 02:24:51,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:51,146 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 866 transitions. [2022-11-03 02:24:51,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:51,146 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 866 transitions. [2022-11-03 02:24:51,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:51,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:51,148 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:51,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:51,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:51,363 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:51,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:51,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1131676571, now seen corresponding path program 1 times [2022-11-03 02:24:51,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:51,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847646021] [2022-11-03 02:24:51,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:51,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:51,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:51,366 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:51,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2022-11-03 02:24:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:52,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 02:24:52,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:52,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:52,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:52,991 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:52,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847646021] [2022-11-03 02:24:52,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847646021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:52,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:52,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:24:52,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161687352] [2022-11-03 02:24:52,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:52,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:24:52,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:52,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:24:52,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:24:52,992 INFO L87 Difference]: Start difference. First operand 671 states and 866 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:53,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:53,728 INFO L93 Difference]: Finished difference Result 1554 states and 2182 transitions. [2022-11-03 02:24:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:24:53,729 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:53,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:53,730 INFO L225 Difference]: With dead ends: 1554 [2022-11-03 02:24:53,730 INFO L226 Difference]: Without dead ends: 1261 [2022-11-03 02:24:53,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:24:53,731 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 2138 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:53,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2138 Valid, 3390 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:24:53,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2022-11-03 02:24:53,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 681. [2022-11-03 02:24:53,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 680 states have (on average 1.2941176470588236) internal successors, (880), 680 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 880 transitions. [2022-11-03 02:24:53,756 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 880 transitions. Word has length 296 [2022-11-03 02:24:53,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:53,756 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 880 transitions. [2022-11-03 02:24:53,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:53,756 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 880 transitions. [2022-11-03 02:24:53,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:53,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:53,759 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:53,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (84)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:53,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:53,972 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:53,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:53,972 INFO L85 PathProgramCache]: Analyzing trace with hash -2099027225, now seen corresponding path program 1 times [2022-11-03 02:24:53,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:53,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430263225] [2022-11-03 02:24:53,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:53,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:53,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:53,975 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:53,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-03 02:24:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:54,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 02:24:54,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:55,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:55,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:55,635 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:55,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430263225] [2022-11-03 02:24:55,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430263225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:55,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:55,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:24:55,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197042486] [2022-11-03 02:24:55,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:55,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:24:55,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:55,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:24:55,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:24:55,637 INFO L87 Difference]: Start difference. First operand 681 states and 880 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:56,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:56,436 INFO L93 Difference]: Finished difference Result 1554 states and 2181 transitions. [2022-11-03 02:24:56,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:24:56,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:24:56,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:56,439 INFO L225 Difference]: With dead ends: 1554 [2022-11-03 02:24:56,439 INFO L226 Difference]: Without dead ends: 1261 [2022-11-03 02:24:56,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:24:56,440 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 2129 mSDsluCounter, 2724 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 3380 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:56,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 3380 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 02:24:56,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2022-11-03 02:24:56,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 683. [2022-11-03 02:24:56,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 682 states have (on average 1.2932551319648093) internal successors, (882), 682 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:56,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 882 transitions. [2022-11-03 02:24:56,452 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 882 transitions. Word has length 296 [2022-11-03 02:24:56,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:56,452 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 882 transitions. [2022-11-03 02:24:56,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:24:56,453 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 882 transitions. [2022-11-03 02:24:56,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:24:56,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:56,455 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:56,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Ended with exit code 0 [2022-11-03 02:24:56,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:56,679 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:56,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:56,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1703313897, now seen corresponding path program 1 times [2022-11-03 02:24:56,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:56,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911637990] [2022-11-03 02:24:56,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:56,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:56,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:56,682 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:56,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2022-11-03 02:24:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:57,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:24:57,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:59,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:59,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:59,152 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:59,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911637990] [2022-11-03 02:24:59,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911637990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:59,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:59,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:24:59,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612845355] [2022-11-03 02:24:59,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:59,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:24:59,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:59,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:24:59,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:24:59,153 INFO L87 Difference]: Start difference. First operand 683 states and 882 transitions. Second operand has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:00,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:00,182 INFO L93 Difference]: Finished difference Result 1086 states and 1479 transitions. [2022-11-03 02:25:00,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:25:00,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:00,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:00,184 INFO L225 Difference]: With dead ends: 1086 [2022-11-03 02:25:00,184 INFO L226 Difference]: Without dead ends: 793 [2022-11-03 02:25:00,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:25:00,185 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 2208 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 3827 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 47 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:00,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2208 Valid, 3827 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 286 Invalid, 0 Unknown, 47 Unchecked, 0.7s Time] [2022-11-03 02:25:00,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-11-03 02:25:00,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 691. [2022-11-03 02:25:00,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 690 states have (on average 1.291304347826087) internal successors, (891), 690 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:00,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 891 transitions. [2022-11-03 02:25:00,194 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 891 transitions. Word has length 296 [2022-11-03 02:25:00,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:00,195 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 891 transitions. [2022-11-03 02:25:00,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:00,195 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 891 transitions. [2022-11-03 02:25:00,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:00,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:00,197 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:00,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (86)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:00,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:00,399 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:00,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:00,399 INFO L85 PathProgramCache]: Analyzing trace with hash 487160171, now seen corresponding path program 1 times [2022-11-03 02:25:00,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:00,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457735424] [2022-11-03 02:25:00,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:00,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:00,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:00,404 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:00,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-03 02:25:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:01,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:01,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:02,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:02,143 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:02,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457735424] [2022-11-03 02:25:02,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457735424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:02,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:02,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:02,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098346349] [2022-11-03 02:25:02,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:02,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:02,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:02,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:02,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:02,145 INFO L87 Difference]: Start difference. First operand 691 states and 891 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:02,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:02,876 INFO L93 Difference]: Finished difference Result 1570 states and 2201 transitions. [2022-11-03 02:25:02,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:02,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:02,878 INFO L225 Difference]: With dead ends: 1570 [2022-11-03 02:25:02,878 INFO L226 Difference]: Without dead ends: 1277 [2022-11-03 02:25:02,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:02,879 INFO L413 NwaCegarLoop]: 664 mSDtfsCounter, 2124 mSDsluCounter, 2701 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2124 SdHoareTripleChecker+Valid, 3365 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:02,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2124 Valid, 3365 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:25:02,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2022-11-03 02:25:02,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 697. [2022-11-03 02:25:02,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 1.2916666666666667) internal successors, (899), 696 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:02,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 899 transitions. [2022-11-03 02:25:02,893 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 899 transitions. Word has length 296 [2022-11-03 02:25:02,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:02,894 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 899 transitions. [2022-11-03 02:25:02,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:02,894 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 899 transitions. [2022-11-03 02:25:02,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:02,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:02,896 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:02,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:03,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:03,122 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:03,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:03,123 INFO L85 PathProgramCache]: Analyzing trace with hash 69763565, now seen corresponding path program 1 times [2022-11-03 02:25:03,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:03,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229841387] [2022-11-03 02:25:03,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:03,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:03,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:03,126 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:03,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2022-11-03 02:25:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:03,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:03,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:04,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:04,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:04,820 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:04,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229841387] [2022-11-03 02:25:04,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229841387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:04,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:04,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:04,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480175653] [2022-11-03 02:25:04,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:04,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:04,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:04,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:04,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:04,822 INFO L87 Difference]: Start difference. First operand 697 states and 899 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:05,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:05,555 INFO L93 Difference]: Finished difference Result 1570 states and 2200 transitions. [2022-11-03 02:25:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:05,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:05,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:05,557 INFO L225 Difference]: With dead ends: 1570 [2022-11-03 02:25:05,557 INFO L226 Difference]: Without dead ends: 1277 [2022-11-03 02:25:05,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:05,558 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 2115 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:05,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 3355 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:25:05,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2022-11-03 02:25:05,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 699. [2022-11-03 02:25:05,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.2908309455587392) internal successors, (901), 698 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:05,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 901 transitions. [2022-11-03 02:25:05,567 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 901 transitions. Word has length 296 [2022-11-03 02:25:05,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:05,567 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 901 transitions. [2022-11-03 02:25:05,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:05,567 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 901 transitions. [2022-11-03 02:25:05,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:05,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:05,569 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:05,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (88)] Ended with exit code 0 [2022-11-03 02:25:05,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:05,770 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:05,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:05,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2031338223, now seen corresponding path program 1 times [2022-11-03 02:25:05,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:05,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309382156] [2022-11-03 02:25:05,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:05,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:05,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:05,773 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:05,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2022-11-03 02:25:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:06,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:25:06,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:08,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:08,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:08,238 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:08,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309382156] [2022-11-03 02:25:08,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309382156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:08,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:08,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:25:08,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994844134] [2022-11-03 02:25:08,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:08,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:25:08,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:08,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:25:08,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:25:08,240 INFO L87 Difference]: Start difference. First operand 699 states and 901 transitions. Second operand has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:09,315 INFO L93 Difference]: Finished difference Result 1094 states and 1486 transitions. [2022-11-03 02:25:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:25:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:09,317 INFO L225 Difference]: With dead ends: 1094 [2022-11-03 02:25:09,317 INFO L226 Difference]: Without dead ends: 801 [2022-11-03 02:25:09,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:25:09,318 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 2244 mSDsluCounter, 3263 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 3793 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:09,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2244 Valid, 3793 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 285 Invalid, 0 Unknown, 62 Unchecked, 0.8s Time] [2022-11-03 02:25:09,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2022-11-03 02:25:09,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 707. [2022-11-03 02:25:09,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 706 states have (on average 1.2889518413597734) internal successors, (910), 706 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:09,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 910 transitions. [2022-11-03 02:25:09,328 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 910 transitions. Word has length 296 [2022-11-03 02:25:09,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:09,329 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 910 transitions. [2022-11-03 02:25:09,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:09,329 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 910 transitions. [2022-11-03 02:25:09,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:09,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:09,331 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:09,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (89)] Ended with exit code 0 [2022-11-03 02:25:09,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:09,532 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:09,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:09,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1702929295, now seen corresponding path program 1 times [2022-11-03 02:25:09,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:09,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732731608] [2022-11-03 02:25:09,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:09,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:09,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:09,535 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:09,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-11-03 02:25:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:10,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:25:10,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:11,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:11,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:11,940 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:11,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732731608] [2022-11-03 02:25:11,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732731608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:11,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:11,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:25:11,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846457781] [2022-11-03 02:25:11,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:11,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:25:11,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:11,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:25:11,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:25:11,942 INFO L87 Difference]: Start difference. First operand 707 states and 910 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:12,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:12,204 INFO L93 Difference]: Finished difference Result 1586 states and 2220 transitions. [2022-11-03 02:25:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:25:12,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:12,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:12,206 INFO L225 Difference]: With dead ends: 1586 [2022-11-03 02:25:12,206 INFO L226 Difference]: Without dead ends: 1293 [2022-11-03 02:25:12,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:25:12,207 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 1337 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 2974 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:12,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 2974 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 91 Unchecked, 0.2s Time] [2022-11-03 02:25:12,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2022-11-03 02:25:12,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 711. [2022-11-03 02:25:12,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 710 states have (on average 1.2887323943661972) internal successors, (915), 710 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:12,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 915 transitions. [2022-11-03 02:25:12,219 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 915 transitions. Word has length 296 [2022-11-03 02:25:12,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:12,220 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 915 transitions. [2022-11-03 02:25:12,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:12,220 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 915 transitions. [2022-11-03 02:25:12,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:12,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:12,222 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:12,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (90)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:12,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:12,447 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:12,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:12,447 INFO L85 PathProgramCache]: Analyzing trace with hash -442012045, now seen corresponding path program 1 times [2022-11-03 02:25:12,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:12,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497683460] [2022-11-03 02:25:12,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:12,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:12,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:12,449 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:12,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2022-11-03 02:25:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:13,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:13,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:14,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:14,077 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:14,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497683460] [2022-11-03 02:25:14,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497683460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:14,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:14,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:14,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433931751] [2022-11-03 02:25:14,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:14,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:14,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:14,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:14,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:14,078 INFO L87 Difference]: Start difference. First operand 711 states and 915 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:14,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:14,776 INFO L93 Difference]: Finished difference Result 1586 states and 2219 transitions. [2022-11-03 02:25:14,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:14,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:14,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:14,777 INFO L225 Difference]: With dead ends: 1586 [2022-11-03 02:25:14,778 INFO L226 Difference]: Without dead ends: 1293 [2022-11-03 02:25:14,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:14,778 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 2106 mSDsluCounter, 2666 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:14,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2106 Valid, 3339 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:25:14,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2022-11-03 02:25:14,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 713. [2022-11-03 02:25:14,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 1.2879213483146068) internal successors, (917), 712 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 917 transitions. [2022-11-03 02:25:14,785 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 917 transitions. Word has length 296 [2022-11-03 02:25:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:14,786 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 917 transitions. [2022-11-03 02:25:14,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 917 transitions. [2022-11-03 02:25:14,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:14,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:14,787 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:14,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (91)] Ended with exit code 0 [2022-11-03 02:25:14,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:14,988 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:14,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:14,988 INFO L85 PathProgramCache]: Analyzing trace with hash 944773365, now seen corresponding path program 1 times [2022-11-03 02:25:14,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:14,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601220926] [2022-11-03 02:25:14,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:14,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:14,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:14,990 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:14,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2022-11-03 02:25:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:15,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:15,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:16,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:16,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:16,618 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:16,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601220926] [2022-11-03 02:25:16,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601220926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:16,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:16,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:16,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501959634] [2022-11-03 02:25:16,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:16,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:16,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:16,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:16,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:16,620 INFO L87 Difference]: Start difference. First operand 713 states and 917 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:17,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:17,334 INFO L93 Difference]: Finished difference Result 1586 states and 2218 transitions. [2022-11-03 02:25:17,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:17,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:17,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:17,336 INFO L225 Difference]: With dead ends: 1586 [2022-11-03 02:25:17,337 INFO L226 Difference]: Without dead ends: 1293 [2022-11-03 02:25:17,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:17,337 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 2097 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2097 SdHoareTripleChecker+Valid, 3329 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:17,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2097 Valid, 3329 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:25:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2022-11-03 02:25:17,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 715. [2022-11-03 02:25:17,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.2871148459383754) internal successors, (919), 714 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 919 transitions. [2022-11-03 02:25:17,346 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 919 transitions. Word has length 296 [2022-11-03 02:25:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:17,347 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 919 transitions. [2022-11-03 02:25:17,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 919 transitions. [2022-11-03 02:25:17,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:17,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:17,349 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:17,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (92)] Ended with exit code 0 [2022-11-03 02:25:17,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:17,549 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:17,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:17,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1388674039, now seen corresponding path program 1 times [2022-11-03 02:25:17,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:17,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741116412] [2022-11-03 02:25:17,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:17,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:17,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:17,552 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:17,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2022-11-03 02:25:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:18,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:25:18,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:19,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:19,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:19,773 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:19,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741116412] [2022-11-03 02:25:19,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741116412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:19,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:19,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:25:19,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172168386] [2022-11-03 02:25:19,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:19,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:25:19,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:19,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:25:19,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:25:19,775 INFO L87 Difference]: Start difference. First operand 715 states and 919 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:19,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:19,989 INFO L93 Difference]: Finished difference Result 1594 states and 2229 transitions. [2022-11-03 02:25:19,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:25:19,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:19,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:19,991 INFO L225 Difference]: With dead ends: 1594 [2022-11-03 02:25:19,991 INFO L226 Difference]: Without dead ends: 1301 [2022-11-03 02:25:19,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:25:19,992 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 1338 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 93 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:19,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 3057 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 93 Unchecked, 0.2s Time] [2022-11-03 02:25:19,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2022-11-03 02:25:19,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 719. [2022-11-03 02:25:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 718 states have (on average 1.286908077994429) internal successors, (924), 718 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:19,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 924 transitions. [2022-11-03 02:25:19,999 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 924 transitions. Word has length 296 [2022-11-03 02:25:19,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:19,999 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 924 transitions. [2022-11-03 02:25:19,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:19,999 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 924 transitions. [2022-11-03 02:25:20,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:20,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:20,001 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:20,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (93)] Ended with exit code 0 [2022-11-03 02:25:20,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:20,201 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:20,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:20,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1373155321, now seen corresponding path program 1 times [2022-11-03 02:25:20,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:20,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509682406] [2022-11-03 02:25:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:20,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:20,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:20,204 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:20,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (94)] Waiting until timeout for monitored process [2022-11-03 02:25:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:20,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:20,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:21,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:21,873 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:21,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509682406] [2022-11-03 02:25:21,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509682406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:21,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:21,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:21,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515780661] [2022-11-03 02:25:21,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:21,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:21,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:21,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:21,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:21,874 INFO L87 Difference]: Start difference. First operand 719 states and 924 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:22,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:22,564 INFO L93 Difference]: Finished difference Result 1594 states and 2228 transitions. [2022-11-03 02:25:22,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:22,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:22,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:22,566 INFO L225 Difference]: With dead ends: 1594 [2022-11-03 02:25:22,566 INFO L226 Difference]: Without dead ends: 1301 [2022-11-03 02:25:22,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:22,567 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 2089 mSDsluCounter, 2631 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 3313 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:22,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2089 Valid, 3313 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:25:22,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2022-11-03 02:25:22,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 721. [2022-11-03 02:25:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 720 states have (on average 1.2861111111111112) internal successors, (926), 720 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:22,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 926 transitions. [2022-11-03 02:25:22,573 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 926 transitions. Word has length 296 [2022-11-03 02:25:22,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:22,574 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 926 transitions. [2022-11-03 02:25:22,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:22,574 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 926 transitions. [2022-11-03 02:25:22,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:22,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:22,575 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:22,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (94)] Ended with exit code 0 [2022-11-03 02:25:22,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:22,776 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:22,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:22,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1020066939, now seen corresponding path program 1 times [2022-11-03 02:25:22,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:22,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019353579] [2022-11-03 02:25:22,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:22,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:22,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:22,778 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:22,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (95)] Waiting until timeout for monitored process [2022-11-03 02:25:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:23,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:23,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:24,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:24,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:24,450 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:24,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019353579] [2022-11-03 02:25:24,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019353579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:24,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:24,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:24,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884773634] [2022-11-03 02:25:24,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:24,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:24,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:24,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:24,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:24,452 INFO L87 Difference]: Start difference. First operand 721 states and 926 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:25,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:25,160 INFO L93 Difference]: Finished difference Result 1594 states and 2227 transitions. [2022-11-03 02:25:25,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:25,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:25,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:25,162 INFO L225 Difference]: With dead ends: 1594 [2022-11-03 02:25:25,162 INFO L226 Difference]: Without dead ends: 1301 [2022-11-03 02:25:25,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:25,163 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 2080 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:25,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2080 Valid, 3303 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:25:25,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2022-11-03 02:25:25,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 723. [2022-11-03 02:25:25,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 1.2853185595567866) internal successors, (928), 722 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 928 transitions. [2022-11-03 02:25:25,169 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 928 transitions. Word has length 296 [2022-11-03 02:25:25,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:25,169 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 928 transitions. [2022-11-03 02:25:25,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:25,169 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 928 transitions. [2022-11-03 02:25:25,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:25,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:25,171 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:25,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (95)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:25,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:25,371 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:25,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:25,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1913553277, now seen corresponding path program 1 times [2022-11-03 02:25:25,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:25,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338561587] [2022-11-03 02:25:25,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:25,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:25,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:25,374 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:25,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2022-11-03 02:25:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:26,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:25:26,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:27,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:27,704 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:27,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338561587] [2022-11-03 02:25:27,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338561587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:27,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:27,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:25:27,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653361780] [2022-11-03 02:25:27,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:27,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:25:27,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:27,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:25:27,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:25:27,705 INFO L87 Difference]: Start difference. First operand 723 states and 928 transitions. Second operand has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:28,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:28,668 INFO L93 Difference]: Finished difference Result 1110 states and 1497 transitions. [2022-11-03 02:25:28,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:25:28,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:28,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:28,669 INFO L225 Difference]: With dead ends: 1110 [2022-11-03 02:25:28,670 INFO L226 Difference]: Without dead ends: 817 [2022-11-03 02:25:28,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:25:28,670 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 2300 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2300 SdHoareTripleChecker+Valid, 3718 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:28,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2300 Valid, 3718 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 283 Invalid, 0 Unknown, 64 Unchecked, 0.7s Time] [2022-11-03 02:25:28,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2022-11-03 02:25:28,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 739. [2022-11-03 02:25:28,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 738 states have (on average 1.2804878048780488) internal successors, (945), 738 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:28,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 945 transitions. [2022-11-03 02:25:28,678 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 945 transitions. Word has length 296 [2022-11-03 02:25:28,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:28,678 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 945 transitions. [2022-11-03 02:25:28,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:28,678 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 945 transitions. [2022-11-03 02:25:28,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:28,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:28,679 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:28,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (96)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:28,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:28,880 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:28,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:28,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1016159999, now seen corresponding path program 1 times [2022-11-03 02:25:28,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:28,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124218793] [2022-11-03 02:25:28,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:28,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:28,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:28,883 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:28,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (97)] Waiting until timeout for monitored process [2022-11-03 02:25:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:29,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:25:29,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:31,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:31,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:31,133 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:31,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124218793] [2022-11-03 02:25:31,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2124218793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:31,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:31,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:25:31,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039268793] [2022-11-03 02:25:31,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:31,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:25:31,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:31,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:25:31,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:25:31,135 INFO L87 Difference]: Start difference. First operand 739 states and 945 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:31,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:31,365 INFO L93 Difference]: Finished difference Result 1370 states and 1883 transitions. [2022-11-03 02:25:31,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:25:31,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:31,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:31,367 INFO L225 Difference]: With dead ends: 1370 [2022-11-03 02:25:31,367 INFO L226 Difference]: Without dead ends: 1077 [2022-11-03 02:25:31,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:25:31,368 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 966 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:31,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [966 Valid, 2700 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 101 Unchecked, 0.2s Time] [2022-11-03 02:25:31,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-11-03 02:25:31,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 743. [2022-11-03 02:25:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 742 states have (on average 1.280323450134771) internal successors, (950), 742 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:31,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 950 transitions. [2022-11-03 02:25:31,382 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 950 transitions. Word has length 296 [2022-11-03 02:25:31,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:31,383 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 950 transitions. [2022-11-03 02:25:31,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 950 transitions. [2022-11-03 02:25:31,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:31,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:31,384 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:31,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (97)] Ended with exit code 0 [2022-11-03 02:25:31,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:31,585 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:31,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:31,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1439806721, now seen corresponding path program 1 times [2022-11-03 02:25:31,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:31,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776752623] [2022-11-03 02:25:31,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:31,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:31,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:31,588 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:31,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (98)] Waiting until timeout for monitored process [2022-11-03 02:25:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:32,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:32,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:33,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:33,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:33,233 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:33,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776752623] [2022-11-03 02:25:33,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776752623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:33,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:33,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:33,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395791177] [2022-11-03 02:25:33,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:33,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:33,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:33,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:33,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:33,235 INFO L87 Difference]: Start difference. First operand 743 states and 950 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:33,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:33,923 INFO L93 Difference]: Finished difference Result 1618 states and 2254 transitions. [2022-11-03 02:25:33,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:33,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:33,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:33,925 INFO L225 Difference]: With dead ends: 1618 [2022-11-03 02:25:33,925 INFO L226 Difference]: Without dead ends: 1325 [2022-11-03 02:25:33,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:33,926 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 2072 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:33,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 3287 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:25:33,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2022-11-03 02:25:33,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 745. [2022-11-03 02:25:33,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 744 states have (on average 1.2795698924731183) internal successors, (952), 744 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:33,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 952 transitions. [2022-11-03 02:25:33,933 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 952 transitions. Word has length 296 [2022-11-03 02:25:33,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:33,933 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 952 transitions. [2022-11-03 02:25:33,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:33,934 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 952 transitions. [2022-11-03 02:25:33,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:33,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:33,935 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:33,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (98)] Ended with exit code 0 [2022-11-03 02:25:34,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:34,135 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:34,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:34,136 INFO L85 PathProgramCache]: Analyzing trace with hash -405560445, now seen corresponding path program 1 times [2022-11-03 02:25:34,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:34,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994871481] [2022-11-03 02:25:34,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:34,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:34,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:34,138 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:34,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2022-11-03 02:25:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:34,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:34,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:35,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:35,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:35,758 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:35,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994871481] [2022-11-03 02:25:35,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994871481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:35,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:35,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:35,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871646676] [2022-11-03 02:25:35,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:35,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:35,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:35,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:35,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:35,759 INFO L87 Difference]: Start difference. First operand 745 states and 952 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:36,415 INFO L93 Difference]: Finished difference Result 1618 states and 2253 transitions. [2022-11-03 02:25:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:36,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:36,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:36,417 INFO L225 Difference]: With dead ends: 1618 [2022-11-03 02:25:36,417 INFO L226 Difference]: Without dead ends: 1325 [2022-11-03 02:25:36,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:36,418 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 2063 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2063 SdHoareTripleChecker+Valid, 3277 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:36,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2063 Valid, 3277 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:25:36,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2022-11-03 02:25:36,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 747. [2022-11-03 02:25:36,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 746 states have (on average 1.2788203753351206) internal successors, (954), 746 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:36,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 954 transitions. [2022-11-03 02:25:36,425 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 954 transitions. Word has length 296 [2022-11-03 02:25:36,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:36,425 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 954 transitions. [2022-11-03 02:25:36,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:36,425 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 954 transitions. [2022-11-03 02:25:36,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:36,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:36,427 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:36,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (99)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:36,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:36,631 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:36,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:36,631 INFO L85 PathProgramCache]: Analyzing trace with hash 253971077, now seen corresponding path program 1 times [2022-11-03 02:25:36,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:36,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456191465] [2022-11-03 02:25:36,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:36,632 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:36,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:36,633 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:36,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (100)] Waiting until timeout for monitored process [2022-11-03 02:25:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:37,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:25:37,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:38,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:38,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:38,887 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:38,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456191465] [2022-11-03 02:25:38,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456191465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:38,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:38,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:25:38,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519432937] [2022-11-03 02:25:38,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:38,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:38,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:38,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:38,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:25:38,888 INFO L87 Difference]: Start difference. First operand 747 states and 954 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:39,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:39,095 INFO L93 Difference]: Finished difference Result 1334 states and 1829 transitions. [2022-11-03 02:25:39,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:25:39,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:39,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:39,099 INFO L225 Difference]: With dead ends: 1334 [2022-11-03 02:25:39,099 INFO L226 Difference]: Without dead ends: 1041 [2022-11-03 02:25:39,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:25:39,100 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 474 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 93 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:39,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 2191 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 93 Unchecked, 0.2s Time] [2022-11-03 02:25:39,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2022-11-03 02:25:39,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 749. [2022-11-03 02:25:39,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 748 states have (on average 1.2780748663101604) internal successors, (956), 748 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:39,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 956 transitions. [2022-11-03 02:25:39,111 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 956 transitions. Word has length 296 [2022-11-03 02:25:39,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:39,112 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 956 transitions. [2022-11-03 02:25:39,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:39,112 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 956 transitions. [2022-11-03 02:25:39,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:39,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:39,116 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:39,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (100)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:39,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:39,339 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:39,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:39,340 INFO L85 PathProgramCache]: Analyzing trace with hash -590034425, now seen corresponding path program 1 times [2022-11-03 02:25:39,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:39,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437548880] [2022-11-03 02:25:39,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:39,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:39,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:39,343 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:39,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (101)] Waiting until timeout for monitored process [2022-11-03 02:25:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:40,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:40,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:40,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:40,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:40,980 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:40,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437548880] [2022-11-03 02:25:40,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437548880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:40,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:40,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:40,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299497015] [2022-11-03 02:25:40,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:40,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:40,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:40,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:40,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:40,981 INFO L87 Difference]: Start difference. First operand 749 states and 956 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:41,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:41,660 INFO L93 Difference]: Finished difference Result 1626 states and 2263 transitions. [2022-11-03 02:25:41,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:41,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:41,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:41,662 INFO L225 Difference]: With dead ends: 1626 [2022-11-03 02:25:41,662 INFO L226 Difference]: Without dead ends: 1333 [2022-11-03 02:25:41,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:41,663 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 2055 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2055 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:41,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2055 Valid, 3261 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:25:41,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2022-11-03 02:25:41,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 753. [2022-11-03 02:25:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 752 states have (on average 1.2779255319148937) internal successors, (961), 752 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 961 transitions. [2022-11-03 02:25:41,672 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 961 transitions. Word has length 296 [2022-11-03 02:25:41,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:41,672 INFO L495 AbstractCegarLoop]: Abstraction has 753 states and 961 transitions. [2022-11-03 02:25:41,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 961 transitions. [2022-11-03 02:25:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:41,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:41,674 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:41,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (101)] Ended with exit code 0 [2022-11-03 02:25:41,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:41,874 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:41,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:41,875 INFO L85 PathProgramCache]: Analyzing trace with hash 111565449, now seen corresponding path program 1 times [2022-11-03 02:25:41,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:41,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421811476] [2022-11-03 02:25:41,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:41,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:41,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:41,877 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:41,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2022-11-03 02:25:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:42,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:42,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:43,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:43,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:43,552 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:43,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421811476] [2022-11-03 02:25:43,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421811476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:43,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:43,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:43,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466156478] [2022-11-03 02:25:43,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:43,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:43,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:43,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:43,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:43,554 INFO L87 Difference]: Start difference. First operand 753 states and 961 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:44,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:44,244 INFO L93 Difference]: Finished difference Result 1626 states and 2262 transitions. [2022-11-03 02:25:44,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:44,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:44,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:44,246 INFO L225 Difference]: With dead ends: 1626 [2022-11-03 02:25:44,246 INFO L226 Difference]: Without dead ends: 1333 [2022-11-03 02:25:44,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:44,246 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 2046 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 3251 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:44,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2046 Valid, 3251 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:25:44,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2022-11-03 02:25:44,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 755. [2022-11-03 02:25:44,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 754 states have (on average 1.2771883289124668) internal successors, (963), 754 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:44,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 963 transitions. [2022-11-03 02:25:44,256 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 963 transitions. Word has length 296 [2022-11-03 02:25:44,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:44,256 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 963 transitions. [2022-11-03 02:25:44,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:44,256 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 963 transitions. [2022-11-03 02:25:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:44,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:44,257 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:44,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (102)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:44,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:44,463 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:44,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:44,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1497768843, now seen corresponding path program 1 times [2022-11-03 02:25:44,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:44,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628679884] [2022-11-03 02:25:44,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:44,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:44,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:44,469 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:44,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (103)] Waiting until timeout for monitored process [2022-11-03 02:25:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:45,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:25:45,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:46,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:46,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:46,848 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:46,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628679884] [2022-11-03 02:25:46,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628679884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:46,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:46,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:25:46,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395862077] [2022-11-03 02:25:46,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:46,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:25:46,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:46,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:25:46,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:25:46,850 INFO L87 Difference]: Start difference. First operand 755 states and 963 transitions. Second operand has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:47,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:47,861 INFO L93 Difference]: Finished difference Result 1126 states and 1508 transitions. [2022-11-03 02:25:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:25:47,862 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:47,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:47,863 INFO L225 Difference]: With dead ends: 1126 [2022-11-03 02:25:47,863 INFO L226 Difference]: Without dead ends: 833 [2022-11-03 02:25:47,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:25:47,864 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 2356 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2356 SdHoareTripleChecker+Valid, 3662 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:47,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2356 Valid, 3662 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 281 Invalid, 0 Unknown, 48 Unchecked, 0.7s Time] [2022-11-03 02:25:47,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2022-11-03 02:25:47,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 771. [2022-11-03 02:25:47,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 770 states have (on average 1.2727272727272727) internal successors, (980), 770 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:47,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 980 transitions. [2022-11-03 02:25:47,881 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 980 transitions. Word has length 296 [2022-11-03 02:25:47,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:47,881 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 980 transitions. [2022-11-03 02:25:47,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:47,882 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 980 transitions. [2022-11-03 02:25:47,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:47,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:47,883 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:47,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (103)] Ended with exit code 0 [2022-11-03 02:25:48,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:48,087 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:48,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:48,087 INFO L85 PathProgramCache]: Analyzing trace with hash -873970419, now seen corresponding path program 1 times [2022-11-03 02:25:48,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:48,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600079096] [2022-11-03 02:25:48,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:48,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:48,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:48,089 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:48,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (104)] Waiting until timeout for monitored process [2022-11-03 02:25:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:48,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:25:48,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:50,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:50,421 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:50,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600079096] [2022-11-03 02:25:50,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600079096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:50,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:50,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:25:50,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93091213] [2022-11-03 02:25:50,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:50,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:25:50,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:50,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:25:50,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:25:50,424 INFO L87 Difference]: Start difference. First operand 771 states and 980 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:50,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:50,642 INFO L93 Difference]: Finished difference Result 1650 states and 2290 transitions. [2022-11-03 02:25:50,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:25:50,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:50,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:50,644 INFO L225 Difference]: With dead ends: 1650 [2022-11-03 02:25:50,644 INFO L226 Difference]: Without dead ends: 1357 [2022-11-03 02:25:50,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:25:50,645 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 1341 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 96 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:50,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1341 Valid, 3105 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 96 Unchecked, 0.2s Time] [2022-11-03 02:25:50,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-11-03 02:25:50,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 775. [2022-11-03 02:25:50,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 774 states have (on average 1.272609819121447) internal successors, (985), 774 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 985 transitions. [2022-11-03 02:25:50,652 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 985 transitions. Word has length 296 [2022-11-03 02:25:50,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:50,653 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 985 transitions. [2022-11-03 02:25:50,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:50,653 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 985 transitions. [2022-11-03 02:25:50,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:50,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:50,654 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:50,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (104)] Ended with exit code 0 [2022-11-03 02:25:50,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:50,855 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:50,855 INFO L85 PathProgramCache]: Analyzing trace with hash -733421809, now seen corresponding path program 1 times [2022-11-03 02:25:50,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:50,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468813762] [2022-11-03 02:25:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:50,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:50,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:50,857 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:50,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2022-11-03 02:25:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:51,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:51,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:52,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:52,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:52,654 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:52,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468813762] [2022-11-03 02:25:52,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468813762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:52,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:52,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:52,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937084505] [2022-11-03 02:25:52,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:52,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:52,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:52,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:52,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:52,655 INFO L87 Difference]: Start difference. First operand 775 states and 985 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:53,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:53,344 INFO L93 Difference]: Finished difference Result 1650 states and 2289 transitions. [2022-11-03 02:25:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:53,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:53,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:53,345 INFO L225 Difference]: With dead ends: 1650 [2022-11-03 02:25:53,346 INFO L226 Difference]: Without dead ends: 1357 [2022-11-03 02:25:53,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:53,346 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 2038 mSDsluCounter, 2529 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:53,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 3239 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:25:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-11-03 02:25:53,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 777. [2022-11-03 02:25:53,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 776 states have (on average 1.2719072164948453) internal successors, (987), 776 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:53,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 987 transitions. [2022-11-03 02:25:53,354 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 987 transitions. Word has length 296 [2022-11-03 02:25:53,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:53,354 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 987 transitions. [2022-11-03 02:25:53,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:53,355 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 987 transitions. [2022-11-03 02:25:53,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:53,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:53,356 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:53,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (105)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:53,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:53,557 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:53,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:53,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1756107153, now seen corresponding path program 1 times [2022-11-03 02:25:53,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:53,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836712679] [2022-11-03 02:25:53,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:53,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:53,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:53,559 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:53,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (106)] Waiting until timeout for monitored process [2022-11-03 02:25:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:54,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:54,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:55,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:55,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:55,252 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:55,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836712679] [2022-11-03 02:25:55,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836712679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:55,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:55,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:25:55,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825632083] [2022-11-03 02:25:55,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:55,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:25:55,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:55,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:25:55,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:55,254 INFO L87 Difference]: Start difference. First operand 777 states and 987 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:55,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:55,918 INFO L93 Difference]: Finished difference Result 1650 states and 2288 transitions. [2022-11-03 02:25:55,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:25:55,918 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:55,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:55,919 INFO L225 Difference]: With dead ends: 1650 [2022-11-03 02:25:55,919 INFO L226 Difference]: Without dead ends: 1357 [2022-11-03 02:25:55,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:25:55,920 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 2029 mSDsluCounter, 2517 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:55,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 3229 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:25:55,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-11-03 02:25:55,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 779. [2022-11-03 02:25:55,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 778 states have (on average 1.2712082262210798) internal successors, (989), 778 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:55,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 989 transitions. [2022-11-03 02:25:55,927 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 989 transitions. Word has length 296 [2022-11-03 02:25:55,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:55,927 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 989 transitions. [2022-11-03 02:25:55,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:55,927 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 989 transitions. [2022-11-03 02:25:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:55,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:55,929 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:55,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (106)] Ended with exit code 0 [2022-11-03 02:25:56,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:56,129 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:56,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:56,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2116158317, now seen corresponding path program 1 times [2022-11-03 02:25:56,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:56,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354413442] [2022-11-03 02:25:56,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:56,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:56,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:56,132 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:56,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (107)] Waiting until timeout for monitored process [2022-11-03 02:25:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:56,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 02:25:56,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:57,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:57,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:57,773 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:57,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354413442] [2022-11-03 02:25:57,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354413442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:57,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:57,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:25:57,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932916313] [2022-11-03 02:25:57,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:57,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:25:57,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:57,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:25:57,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:25:57,774 INFO L87 Difference]: Start difference. First operand 779 states and 989 transitions. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:58,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:58,295 INFO L93 Difference]: Finished difference Result 1658 states and 2299 transitions. [2022-11-03 02:25:58,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:25:58,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:25:58,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:58,298 INFO L225 Difference]: With dead ends: 1658 [2022-11-03 02:25:58,299 INFO L226 Difference]: Without dead ends: 1365 [2022-11-03 02:25:58,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:25:58,306 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 1695 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:58,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 2811 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:25:58,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2022-11-03 02:25:58,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 783. [2022-11-03 02:25:58,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 782 states have (on average 1.2710997442455243) internal successors, (994), 782 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 994 transitions. [2022-11-03 02:25:58,313 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 994 transitions. Word has length 296 [2022-11-03 02:25:58,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:58,313 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 994 transitions. [2022-11-03 02:25:58,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:58,314 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 994 transitions. [2022-11-03 02:25:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:25:58,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:58,315 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:58,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (107)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:58,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:58,515 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:58,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:58,516 INFO L85 PathProgramCache]: Analyzing trace with hash 590461077, now seen corresponding path program 1 times [2022-11-03 02:25:58,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:58,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417491427] [2022-11-03 02:25:58,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:58,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:58,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:58,518 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:58,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2022-11-03 02:25:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:59,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:25:59,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:26:01,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:26:01,342 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:26:01,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417491427] [2022-11-03 02:26:01,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417491427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:01,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:01,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:26:01,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295787779] [2022-11-03 02:26:01,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:01,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:26:01,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:26:01,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:26:01,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:26:01,343 INFO L87 Difference]: Start difference. First operand 783 states and 994 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:01,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:01,689 INFO L93 Difference]: Finished difference Result 1658 states and 2298 transitions. [2022-11-03 02:26:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:26:01,690 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:26:01,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:01,691 INFO L225 Difference]: With dead ends: 1658 [2022-11-03 02:26:01,691 INFO L226 Difference]: Without dead ends: 1365 [2022-11-03 02:26:01,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:26:01,692 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 1372 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 3772 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:01,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 3772 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 101 Unchecked, 0.3s Time] [2022-11-03 02:26:01,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2022-11-03 02:26:01,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 785. [2022-11-03 02:26:01,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 784 states have (on average 1.2704081632653061) internal successors, (996), 784 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:01,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 996 transitions. [2022-11-03 02:26:01,699 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 996 transitions. Word has length 296 [2022-11-03 02:26:01,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:01,700 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 996 transitions. [2022-11-03 02:26:01,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:01,700 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 996 transitions. [2022-11-03 02:26:01,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:26:01,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:01,701 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:01,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (108)] Ended with exit code 0 [2022-11-03 02:26:01,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:26:01,902 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:01,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:01,902 INFO L85 PathProgramCache]: Analyzing trace with hash -689402601, now seen corresponding path program 1 times [2022-11-03 02:26:01,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:26:01,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185788974] [2022-11-03 02:26:01,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:01,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:26:01,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:26:01,904 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:26:01,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (109)] Waiting until timeout for monitored process [2022-11-03 02:26:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:02,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:26:02,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:26:05,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:26:05,129 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:26:05,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185788974] [2022-11-03 02:26:05,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [185788974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:05,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:05,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:26:05,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863811337] [2022-11-03 02:26:05,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:05,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:26:05,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:26:05,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:26:05,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:26:05,131 INFO L87 Difference]: Start difference. First operand 785 states and 996 transitions. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:05,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:05,544 INFO L93 Difference]: Finished difference Result 1658 states and 2297 transitions. [2022-11-03 02:26:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:26:05,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:26:05,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:05,546 INFO L225 Difference]: With dead ends: 1658 [2022-11-03 02:26:05,547 INFO L226 Difference]: Without dead ends: 1365 [2022-11-03 02:26:05,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:26:05,547 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 1366 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 3776 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:05,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 3776 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 101 Unchecked, 0.3s Time] [2022-11-03 02:26:05,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2022-11-03 02:26:05,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 787. [2022-11-03 02:26:05,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.2697201017811706) internal successors, (998), 786 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:05,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 998 transitions. [2022-11-03 02:26:05,557 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 998 transitions. Word has length 296 [2022-11-03 02:26:05,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:05,557 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 998 transitions. [2022-11-03 02:26:05,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:05,557 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 998 transitions. [2022-11-03 02:26:05,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:26:05,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:05,558 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:05,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (109)] Ended with exit code 0 [2022-11-03 02:26:05,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:26:05,759 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:05,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:05,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1276208615, now seen corresponding path program 1 times [2022-11-03 02:26:05,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:26:05,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796228637] [2022-11-03 02:26:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:05,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:26:05,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:26:05,762 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:26:05,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (110)] Waiting until timeout for monitored process [2022-11-03 02:26:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:06,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-03 02:26:06,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:08,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:26:08,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:26:08,875 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:26:08,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796228637] [2022-11-03 02:26:08,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796228637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:08,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:08,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:26:08,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027702297] [2022-11-03 02:26:08,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:08,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 02:26:08,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:26:08,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 02:26:08,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:26:08,877 INFO L87 Difference]: Start difference. First operand 787 states and 998 transitions. Second operand has 10 states, 10 states have (on average 29.6) internal successors, (296), 10 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:08,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:08,892 INFO L93 Difference]: Finished difference Result 1096 states and 1453 transitions. [2022-11-03 02:26:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:26:08,893 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 29.6) internal successors, (296), 10 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-11-03 02:26:08,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:08,894 INFO L225 Difference]: With dead ends: 1096 [2022-11-03 02:26:08,894 INFO L226 Difference]: Without dead ends: 803 [2022-11-03 02:26:08,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:26:08,895 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 35 mSDsluCounter, 3235 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3647 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 113 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:08,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3647 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 113 Unchecked, 0.0s Time] [2022-11-03 02:26:08,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2022-11-03 02:26:08,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2022-11-03 02:26:08,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 802 states have (on average 1.2655860349127181) internal successors, (1015), 802 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:08,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1015 transitions. [2022-11-03 02:26:08,902 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1015 transitions. Word has length 296 [2022-11-03 02:26:08,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:08,903 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1015 transitions. [2022-11-03 02:26:08,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 29.6) internal successors, (296), 10 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:08,903 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1015 transitions. [2022-11-03 02:26:08,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-03 02:26:08,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:08,904 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:08,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (110)] Ended with exit code 0 [2022-11-03 02:26:09,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:26:09,105 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:09,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:09,105 INFO L85 PathProgramCache]: Analyzing trace with hash -575144037, now seen corresponding path program 1 times [2022-11-03 02:26:09,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:26:09,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644658797] [2022-11-03 02:26:09,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:09,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:26:09,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:26:09,108 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:26:09,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524548-18a6-454e-94a4-262c0856a817/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (111)] Waiting until timeout for monitored process [2022-11-03 02:26:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:09,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-03 02:26:09,883 INFO L286 TraceCheckSpWp]: Computing forward predicates...