./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/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 9e4bb58ce6081c5c3bdbf18ab57dfed9e7c7ba7bbaedd0780c65b0306c06c8c4 --- 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 01:53:36,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:53:36,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:53:36,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:53:36,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:53:36,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:53:37,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:53:37,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:53:37,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:53:37,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:53:37,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:53:37,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:53:37,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:53:37,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:53:37,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:53:37,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:53:37,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:53:37,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:53:37,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:53:37,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:53:37,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:53:37,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:53:37,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:53:37,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:53:37,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:53:37,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:53:37,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:53:37,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:53:37,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:53:37,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:53:37,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:53:37,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:53:37,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:53:37,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:53:37,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:53:37,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:53:37,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:53:37,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:53:37,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:53:37,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:53:37,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:53:37,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:53:37,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:53:37,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:53:37,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:53:37,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:53:37,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:53:37,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:53:37,097 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:53:37,097 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:53:37,097 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:53:37,097 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:53:37,098 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:53:37,098 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:53:37,098 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:53:37,098 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:53:37,098 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:53:37,099 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:53:37,099 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:53:37,099 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:53:37,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:53:37,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:53:37,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:53:37,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:53:37,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:53:37,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:53:37,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:53:37,101 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:53:37,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:53:37,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:53:37,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:53:37,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:53:37,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:53:37,106 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:53:37,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:53:37,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:53:37,107 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:53:37,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:53:37,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:53:37,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:53:37,108 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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4bb58ce6081c5c3bdbf18ab57dfed9e7c7ba7bbaedd0780c65b0306c06c8c4 [2022-11-03 01:53:37,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:53:37,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:53:37,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:53:37,431 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:53:37,433 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:53:37,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c [2022-11-03 01:53:37,522 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/data/4c0d0833b/6b8bbb039cbc43b196d8469f9b870610/FLAGf28fa327e [2022-11-03 01:53:38,147 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:53:38,152 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c [2022-11-03 01:53:38,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/data/4c0d0833b/6b8bbb039cbc43b196d8469f9b870610/FLAGf28fa327e [2022-11-03 01:53:38,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/data/4c0d0833b/6b8bbb039cbc43b196d8469f9b870610 [2022-11-03 01:53:38,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:53:38,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:53:38,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:53:38,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:53:38,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:53:38,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:53:38" (1/1) ... [2022-11-03 01:53:38,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6657c347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:38, skipping insertion in model container [2022-11-03 01:53:38,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:53:38" (1/1) ... [2022-11-03 01:53:38,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:53:38,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:53:38,718 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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c[1116,1129] [2022-11-03 01:53:39,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:53:39,015 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:53:39,028 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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c[1116,1129] [2022-11-03 01:53:39,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:53:39,162 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:53:39,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39 WrapperNode [2022-11-03 01:53:39,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:53:39,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:53:39,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:53:39,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:53:39,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (1/1) ... [2022-11-03 01:53:39,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (1/1) ... [2022-11-03 01:53:39,356 INFO L138 Inliner]: procedures = 11, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1142 [2022-11-03 01:53:39,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:53:39,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:53:39,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:53:39,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:53:39,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (1/1) ... [2022-11-03 01:53:39,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (1/1) ... [2022-11-03 01:53:39,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (1/1) ... [2022-11-03 01:53:39,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (1/1) ... [2022-11-03 01:53:39,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (1/1) ... [2022-11-03 01:53:39,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (1/1) ... [2022-11-03 01:53:39,459 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (1/1) ... [2022-11-03 01:53:39,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (1/1) ... [2022-11-03 01:53:39,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:53:39,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:53:39,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:53:39,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:53:39,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (1/1) ... [2022-11-03 01:53:39,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:53:39,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:39,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:53:39,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:53:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:53:39,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:53:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:53:39,586 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:53:39,993 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:53:39,995 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:53:42,034 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:53:44,110 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:53:44,110 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:53:44,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:53:44 BoogieIcfgContainer [2022-11-03 01:53:44,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:53:44,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:53:44,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:53:44,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:53:44,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:53:38" (1/3) ... [2022-11-03 01:53:44,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3258d962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:53:44, skipping insertion in model container [2022-11-03 01:53:44,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:39" (2/3) ... [2022-11-03 01:53:44,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3258d962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:53:44, skipping insertion in model container [2022-11-03 01:53:44,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:53:44" (3/3) ... [2022-11-03 01:53:44,128 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c [2022-11-03 01:53:44,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:53:44,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:53:44,212 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:53:44,231 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;@4a3a3ca5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:53:44,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:53:44,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:53:44,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 01:53:44,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:44,249 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:44,250 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:44,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:44,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1478196790, now seen corresponding path program 1 times [2022-11-03 01:53:44,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:44,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592909467] [2022-11-03 01:53:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:44,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 01:53:50,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:50,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592909467] [2022-11-03 01:53:50,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592909467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:50,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:50,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:53:50,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183694759] [2022-11-03 01:53:50,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:50,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:53:50,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:50,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:53:50,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:53:50,505 INFO L87 Difference]: Start difference. First operand has 15 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:53:52,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:52,423 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2022-11-03 01:53:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:53:52,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2022-11-03 01:53:52,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:52,434 INFO L225 Difference]: With dead ends: 37 [2022-11-03 01:53:52,434 INFO L226 Difference]: Without dead ends: 23 [2022-11-03 01:53:52,437 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 01:53:52,441 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 7 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:52,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 39 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 01:53:52,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-03 01:53:52,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-11-03 01:53:52,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:53:52,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-03 01:53:52,481 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 16 [2022-11-03 01:53:52,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:52,483 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-03 01:53:52,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:53:52,484 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-03 01:53:52,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 01:53:52,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:52,486 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-03 01:53:52,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:53:52,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:53:52,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:52,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1208692764, now seen corresponding path program 1 times [2022-11-03 01:53:52,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:52,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263806833] [2022-11-03 01:53:52,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:52,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:54:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:54:11,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 01:54:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:54:28,646 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 01:54:28,647 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 01:54:28,649 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:54:28,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:54:28,654 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 01:54:28,658 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:54:28,792 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 01:54:28,792 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 01:54:28,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:54:28 BoogieIcfgContainer [2022-11-03 01:54:28,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:54:28,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:54:28,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:54:28,835 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:54:28,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:53:44" (3/4) ... [2022-11-03 01:54:28,839 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 01:54:28,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:54:28,840 INFO L158 Benchmark]: Toolchain (without parser) took 50396.43ms. Allocated memory was 130.0MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 92.0MB in the beginning and 775.2MB in the end (delta: -683.2MB). Peak memory consumption was 856.7MB. Max. memory is 16.1GB. [2022-11-03 01:54:28,841 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 130.0MB. Free memory is still 109.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:54:28,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.70ms. Allocated memory is still 130.0MB. Free memory was 91.8MB in the beginning and 84.8MB in the end (delta: 7.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 01:54:28,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 192.49ms. Allocated memory is still 130.0MB. Free memory was 84.8MB in the beginning and 70.0MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 01:54:28,844 INFO L158 Benchmark]: Boogie Preprocessor took 130.78ms. Allocated memory is still 130.0MB. Free memory was 70.0MB in the beginning and 61.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 01:54:28,845 INFO L158 Benchmark]: RCFGBuilder took 4626.76ms. Allocated memory was 130.0MB in the beginning and 423.6MB in the end (delta: 293.6MB). Free memory was 61.6MB in the beginning and 241.7MB in the end (delta: -180.1MB). Peak memory consumption was 118.3MB. Max. memory is 16.1GB. [2022-11-03 01:54:28,848 INFO L158 Benchmark]: TraceAbstraction took 44715.74ms. Allocated memory was 423.6MB in the beginning and 1.7GB in the end (delta: 1.2GB). Free memory was 240.7MB in the beginning and 776.3MB in the end (delta: -535.6MB). Peak memory consumption was 717.5MB. Max. memory is 16.1GB. [2022-11-03 01:54:28,849 INFO L158 Benchmark]: Witness Printer took 4.90ms. Allocated memory is still 1.7GB. Free memory was 776.3MB in the beginning and 775.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:54:28,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 130.0MB. Free memory is still 109.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.70ms. Allocated memory is still 130.0MB. Free memory was 91.8MB in the beginning and 84.8MB in the end (delta: 7.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 192.49ms. Allocated memory is still 130.0MB. Free memory was 84.8MB in the beginning and 70.0MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 130.78ms. Allocated memory is still 130.0MB. Free memory was 70.0MB in the beginning and 61.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 4626.76ms. Allocated memory was 130.0MB in the beginning and 423.6MB in the end (delta: 293.6MB). Free memory was 61.6MB in the beginning and 241.7MB in the end (delta: -180.1MB). Peak memory consumption was 118.3MB. Max. memory is 16.1GB. * TraceAbstraction took 44715.74ms. Allocated memory was 423.6MB in the beginning and 1.7GB in the end (delta: 1.2GB). Free memory was 240.7MB in the beginning and 776.3MB in the end (delta: -535.6MB). Peak memory consumption was 717.5MB. Max. memory is 16.1GB. * Witness Printer took 4.90ms. Allocated memory is still 1.7GB. Free memory was 776.3MB in the beginning and 775.2MB in the end (delta: 1.0MB). 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 388, overapproximation of bitwiseComplement at line 173, overapproximation of bitwiseAnd at line 176. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 64); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (64 - 1); [L31] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 6); [L32] const SORT_11 msb_SORT_11 = (SORT_11)1 << (6 - 1); [L34] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 5); [L35] const SORT_13 msb_SORT_13 = (SORT_13)1 << (5 - 1); [L37] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 4); [L38] const SORT_19 msb_SORT_19 = (SORT_19)1 << (4 - 1); [L40] const SORT_60 mask_SORT_60 = (SORT_60)-1 >> (sizeof(SORT_60) * 8 - 3); [L41] const SORT_60 msb_SORT_60 = (SORT_60)1 << (3 - 1); [L43] const SORT_81 mask_SORT_81 = (SORT_81)-1 >> (sizeof(SORT_81) * 8 - 2); [L44] const SORT_81 msb_SORT_81 = (SORT_81)1 << (2 - 1); [L46] const SORT_13 var_15 = 16; [L47] const SORT_19 var_20 = 15; [L48] const SORT_19 var_25 = 14; [L49] const SORT_19 var_30 = 13; [L50] const SORT_19 var_35 = 12; [L51] const SORT_19 var_40 = 11; [L52] const SORT_19 var_45 = 10; [L53] const SORT_19 var_50 = 9; [L54] const SORT_19 var_55 = 8; [L55] const SORT_60 var_61 = 7; [L56] const SORT_60 var_66 = 6; [L57] const SORT_60 var_71 = 5; [L58] const SORT_60 var_76 = 4; [L59] const SORT_81 var_82 = 3; [L60] const SORT_81 var_87 = 2; [L61] const SORT_1 var_92 = 1; [L62] const SORT_13 var_105 = 17; [L63] const SORT_11 var_122 = 0; [L64] const SORT_1 var_152 = 0; [L65] const SORT_3 var_373 = 0; [L67] SORT_1 input_2; [L68] SORT_3 input_4; [L69] SORT_1 input_5; [L70] SORT_1 input_6; [L71] SORT_1 input_7; [L72] SORT_1 input_8; [L73] SORT_3 input_9; [L74] SORT_1 input_150; [L76] SORT_3 state_10 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L77] SORT_11 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L78] SORT_3 state_18 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L79] SORT_3 state_24 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L80] SORT_3 state_29 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L81] SORT_3 state_34 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L82] SORT_3 state_39 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L83] SORT_3 state_44 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L84] SORT_3 state_49 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L85] SORT_3 state_54 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L86] SORT_3 state_59 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L87] SORT_3 state_65 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L88] SORT_3 state_70 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L89] SORT_3 state_75 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L90] SORT_3 state_80 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L91] SORT_3 state_86 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L92] SORT_3 state_91 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L93] SORT_3 state_96 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L94] SORT_11 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L95] SORT_1 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] SORT_1 state_110 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] SORT_11 state_113 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L98] SORT_3 state_128 = __VERIFIER_nondet_ulong() & mask_SORT_3; [L99] SORT_1 state_132 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] SORT_11 state_185 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L102] SORT_1 init_133_arg_1 = var_92; [L103] state_132 = init_133_arg_1 VAL [init_133_arg_1=1, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=0, state_113=21, state_12=4, state_128=0, state_132=1, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_105=17, var_122=0, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L106] input_2 = __VERIFIER_nondet_uchar() [L107] input_4 = __VERIFIER_nondet_ulong() [L108] input_5 = __VERIFIER_nondet_uchar() [L109] input_6 = __VERIFIER_nondet_uchar() [L110] input_7 = __VERIFIER_nondet_uchar() [L111] input_7 = input_7 & mask_SORT_1 [L112] input_8 = __VERIFIER_nondet_uchar() [L113] input_9 = __VERIFIER_nondet_ulong() [L114] input_150 = __VERIFIER_nondet_uchar() [L116] SORT_1 var_134_arg_0 = input_7; [L117] SORT_1 var_134_arg_1 = state_132; [L118] SORT_1 var_134 = var_134_arg_0 == var_134_arg_1; [L119] SORT_1 var_135_arg_0 = var_92; [L120] SORT_1 var_135 = ~var_135_arg_0; [L121] SORT_1 var_136_arg_0 = var_134; [L122] SORT_1 var_136_arg_1 = var_135; [L123] SORT_1 var_136 = var_136_arg_0 | var_136_arg_1; [L124] var_136 = var_136 & mask_SORT_1 [L125] SORT_1 constr_137_arg_0 = var_136; VAL [constr_137_arg_0=1, init_133_arg_1=1, input_150=1, input_2=25, input_4=0, input_5=1, input_6=2, input_7=0, input_8=0, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=0, state_113=21, state_12=4, state_128=0, state_132=1, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_105=17, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=1, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L126] CALL assume_abort_if_not(constr_137_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L126] RET assume_abort_if_not(constr_137_arg_0) VAL [constr_137_arg_0=1, init_133_arg_1=1, input_150=1, input_2=25, input_4=0, input_5=1, input_6=2, input_7=0, input_8=0, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=0, state_113=21, state_12=4, state_128=0, state_132=1, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_105=17, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=1, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L127] SORT_13 var_106_arg_0 = var_105; [L128] var_106_arg_0 = var_106_arg_0 & mask_SORT_13 [L129] SORT_11 var_106 = var_106_arg_0; [L130] SORT_11 var_107_arg_0 = state_101; [L131] SORT_11 var_107_arg_1 = var_106; [L132] SORT_1 var_107 = var_107_arg_0 == var_107_arg_1; [L133] SORT_1 var_138_arg_0 = var_107; [L134] SORT_1 var_138 = ~var_138_arg_0; [L135] SORT_1 var_139_arg_0 = input_6; [L136] SORT_1 var_139 = ~var_139_arg_0; [L137] SORT_1 var_140_arg_0 = var_138; [L138] SORT_1 var_140_arg_1 = var_139; [L139] SORT_1 var_140 = var_140_arg_0 | var_140_arg_1; [L140] SORT_1 var_141_arg_0 = var_92; [L141] SORT_1 var_141 = ~var_141_arg_0; [L142] SORT_1 var_142_arg_0 = var_140; [L143] SORT_1 var_142_arg_1 = var_141; [L144] SORT_1 var_142 = var_142_arg_0 | var_142_arg_1; [L145] var_142 = var_142 & mask_SORT_1 [L146] SORT_1 constr_143_arg_0 = var_142; VAL [constr_137_arg_0=1, constr_143_arg_0=1, init_133_arg_1=1, input_150=1, input_2=25, input_4=0, input_5=1, input_6=2, input_7=0, input_8=0, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=0, state_113=21, state_12=4, state_128=0, state_132=1, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_105=17, var_106=0, var_106_arg_0=0, var_107=1, var_107_arg_0=0, var_107_arg_1=0, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=1, var_138=0, var_138_arg_0=1, var_139=26, var_139_arg_0=2, var_140=1, var_140_arg_0=0, var_140_arg_1=26, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L147] CALL assume_abort_if_not(constr_143_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L147] RET assume_abort_if_not(constr_143_arg_0) VAL [constr_137_arg_0=1, constr_143_arg_0=1, init_133_arg_1=1, input_150=1, input_2=25, input_4=0, input_5=1, input_6=2, input_7=0, input_8=0, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=0, state_113=21, state_12=4, state_128=0, state_132=1, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_105=17, var_106=0, var_106_arg_0=0, var_107=1, var_107_arg_0=0, var_107_arg_1=0, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=1, var_138=0, var_138_arg_0=1, var_139=26, var_139_arg_0=2, var_140=1, var_140_arg_0=0, var_140_arg_1=26, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L148] SORT_11 var_102_arg_0 = state_101; [L149] SORT_1 var_102 = var_102_arg_0 != 0; [L150] SORT_1 var_103_arg_0 = var_102; [L151] SORT_1 var_103 = ~var_103_arg_0; [L152] SORT_1 var_144_arg_0 = var_103; [L153] SORT_1 var_144 = ~var_144_arg_0; [L154] SORT_1 var_145_arg_0 = input_5; [L155] SORT_1 var_145 = ~var_145_arg_0; [L156] SORT_1 var_146_arg_0 = var_144; [L157] SORT_1 var_146_arg_1 = var_145; [L158] SORT_1 var_146 = var_146_arg_0 | var_146_arg_1; [L159] SORT_1 var_147_arg_0 = var_92; [L160] SORT_1 var_147 = ~var_147_arg_0; [L161] SORT_1 var_148_arg_0 = var_146; [L162] SORT_1 var_148_arg_1 = var_147; [L163] SORT_1 var_148 = var_148_arg_0 | var_148_arg_1; [L164] var_148 = var_148 & mask_SORT_1 [L165] SORT_1 constr_149_arg_0 = var_148; VAL [constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=25, input_4=0, input_5=1, input_6=2, input_7=0, input_8=0, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=0, state_113=21, state_12=4, state_128=0, state_132=1, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=0, var_102_arg_0=0, var_103=9, var_103_arg_0=0, var_105=17, var_106=0, var_106_arg_0=0, var_107=1, var_107_arg_0=0, var_107_arg_1=0, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=1, var_138=0, var_138_arg_0=1, var_139=26, var_139_arg_0=2, var_140=1, var_140_arg_0=0, var_140_arg_1=26, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=0, var_144_arg_0=9, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=0, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L166] CALL assume_abort_if_not(constr_149_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L166] RET assume_abort_if_not(constr_149_arg_0) VAL [constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=25, input_4=0, input_5=1, input_6=2, input_7=0, input_8=0, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=0, state_113=21, state_12=4, state_128=0, state_132=1, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=0, var_102_arg_0=0, var_103=9, var_103_arg_0=0, var_105=17, var_106=0, var_106_arg_0=0, var_107=1, var_107_arg_0=0, var_107_arg_1=0, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=1, var_138=0, var_138_arg_0=1, var_139=26, var_139_arg_0=2, var_140=1, var_140_arg_0=0, var_140_arg_1=26, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=0, var_144_arg_0=9, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=0, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L168] SORT_1 var_153_arg_0 = state_132; [L169] SORT_1 var_153_arg_1 = var_152; [L170] SORT_1 var_153_arg_2 = var_92; [L171] EXPR var_153_arg_0 ? var_153_arg_1 : var_153_arg_2 [L171] SORT_1 var_153 = var_153_arg_0 ? var_153_arg_1 : var_153_arg_2; [L172] SORT_1 var_111_arg_0 = state_110; [L173] SORT_1 var_111 = ~var_111_arg_0; [L174] SORT_1 var_112_arg_0 = state_109; [L175] SORT_1 var_112_arg_1 = var_111; [L176] SORT_1 var_112 = var_112_arg_0 & var_112_arg_1; [L177] SORT_11 var_114_arg_0 = state_113; [L178] SORT_1 var_114 = var_114_arg_0 != 0; [L179] SORT_1 var_115_arg_0 = var_112; [L180] SORT_1 var_115_arg_1 = var_114; [L181] SORT_1 var_115 = var_115_arg_0 & var_115_arg_1; [L182] SORT_1 var_116_arg_0 = state_109; [L183] SORT_1 var_116 = ~var_116_arg_0; [L184] SORT_1 var_117_arg_0 = input_6; [L185] SORT_1 var_117_arg_1 = var_116; [L186] SORT_1 var_117 = var_117_arg_0 & var_117_arg_1; [L187] SORT_1 var_118_arg_0 = var_117; [L188] var_118_arg_0 = var_118_arg_0 & mask_SORT_1 [L189] SORT_11 var_118 = var_118_arg_0; [L190] SORT_11 var_119_arg_0 = state_113; [L191] SORT_11 var_119_arg_1 = var_118; [L192] SORT_11 var_119 = var_119_arg_0 + var_119_arg_1; [L193] SORT_1 var_120_arg_0 = input_5; [L194] var_120_arg_0 = var_120_arg_0 & mask_SORT_1 [L195] SORT_11 var_120 = var_120_arg_0; [L196] SORT_11 var_121_arg_0 = var_119; [L197] SORT_11 var_121_arg_1 = var_120; [L198] SORT_11 var_121 = var_121_arg_0 - var_121_arg_1; [L199] SORT_1 var_123_arg_0 = input_7; [L200] SORT_11 var_123_arg_1 = var_122; [L201] SORT_11 var_123_arg_2 = var_121; [L202] EXPR var_123_arg_0 ? var_123_arg_1 : var_123_arg_2 [L202] SORT_11 var_123 = var_123_arg_0 ? var_123_arg_1 : var_123_arg_2; [L203] var_123 = var_123 & mask_SORT_11 [L204] SORT_11 var_124_arg_0 = var_123; [L205] SORT_1 var_124 = var_124_arg_0 != 0; [L206] SORT_1 var_125_arg_0 = var_124; [L207] SORT_1 var_125 = ~var_125_arg_0; [L208] SORT_1 var_126_arg_0 = var_115; [L209] SORT_1 var_126_arg_1 = var_125; [L210] SORT_1 var_126 = var_126_arg_0 & var_126_arg_1; [L211] SORT_1 var_127_arg_0 = var_126; [L212] SORT_1 var_127 = ~var_127_arg_0; [L213] SORT_11 var_14_arg_0 = state_12; [L214] SORT_13 var_14 = var_14_arg_0 >> 0; [L215] var_14 = var_14 & mask_SORT_13 [L216] SORT_13 var_97_arg_0 = var_14; [L217] SORT_1 var_97 = var_97_arg_0 != 0; [L218] SORT_1 var_98_arg_0 = var_97; [L219] SORT_1 var_98 = ~var_98_arg_0; [L220] var_98 = var_98 & mask_SORT_1 [L221] SORT_1 var_93_arg_0 = var_92; [L222] var_93_arg_0 = var_93_arg_0 & mask_SORT_1 [L223] SORT_13 var_93 = var_93_arg_0; [L224] SORT_13 var_94_arg_0 = var_14; [L225] SORT_13 var_94_arg_1 = var_93; [L226] SORT_1 var_94 = var_94_arg_0 == var_94_arg_1; [L227] SORT_81 var_88_arg_0 = var_87; [L228] var_88_arg_0 = var_88_arg_0 & mask_SORT_81 [L229] SORT_13 var_88 = var_88_arg_0; [L230] SORT_13 var_89_arg_0 = var_14; [L231] SORT_13 var_89_arg_1 = var_88; [L232] SORT_1 var_89 = var_89_arg_0 == var_89_arg_1; [L233] SORT_81 var_83_arg_0 = var_82; [L234] var_83_arg_0 = var_83_arg_0 & mask_SORT_81 [L235] SORT_13 var_83 = var_83_arg_0; [L236] SORT_13 var_84_arg_0 = var_14; [L237] SORT_13 var_84_arg_1 = var_83; [L238] SORT_1 var_84 = var_84_arg_0 == var_84_arg_1; [L239] SORT_60 var_77_arg_0 = var_76; [L240] var_77_arg_0 = var_77_arg_0 & mask_SORT_60 [L241] SORT_13 var_77 = var_77_arg_0; [L242] SORT_13 var_78_arg_0 = var_14; [L243] SORT_13 var_78_arg_1 = var_77; [L244] SORT_1 var_78 = var_78_arg_0 == var_78_arg_1; [L245] SORT_60 var_72_arg_0 = var_71; [L246] var_72_arg_0 = var_72_arg_0 & mask_SORT_60 [L247] SORT_13 var_72 = var_72_arg_0; [L248] SORT_13 var_73_arg_0 = var_14; [L249] SORT_13 var_73_arg_1 = var_72; [L250] SORT_1 var_73 = var_73_arg_0 == var_73_arg_1; [L251] SORT_60 var_67_arg_0 = var_66; [L252] var_67_arg_0 = var_67_arg_0 & mask_SORT_60 [L253] SORT_13 var_67 = var_67_arg_0; [L254] SORT_13 var_68_arg_0 = var_14; [L255] SORT_13 var_68_arg_1 = var_67; [L256] SORT_1 var_68 = var_68_arg_0 == var_68_arg_1; [L257] SORT_60 var_62_arg_0 = var_61; [L258] var_62_arg_0 = var_62_arg_0 & mask_SORT_60 [L259] SORT_13 var_62 = var_62_arg_0; [L260] SORT_13 var_63_arg_0 = var_14; [L261] SORT_13 var_63_arg_1 = var_62; [L262] SORT_1 var_63 = var_63_arg_0 == var_63_arg_1; [L263] SORT_19 var_56_arg_0 = var_55; [L264] var_56_arg_0 = var_56_arg_0 & mask_SORT_19 [L265] SORT_13 var_56 = var_56_arg_0; [L266] SORT_13 var_57_arg_0 = var_14; [L267] SORT_13 var_57_arg_1 = var_56; [L268] SORT_1 var_57 = var_57_arg_0 == var_57_arg_1; [L269] SORT_19 var_51_arg_0 = var_50; [L270] var_51_arg_0 = var_51_arg_0 & mask_SORT_19 [L271] SORT_13 var_51 = var_51_arg_0; [L272] SORT_13 var_52_arg_0 = var_14; [L273] SORT_13 var_52_arg_1 = var_51; [L274] SORT_1 var_52 = var_52_arg_0 == var_52_arg_1; [L275] SORT_19 var_46_arg_0 = var_45; [L276] var_46_arg_0 = var_46_arg_0 & mask_SORT_19 [L277] SORT_13 var_46 = var_46_arg_0; [L278] SORT_13 var_47_arg_0 = var_14; [L279] SORT_13 var_47_arg_1 = var_46; [L280] SORT_1 var_47 = var_47_arg_0 == var_47_arg_1; [L281] SORT_19 var_41_arg_0 = var_40; [L282] var_41_arg_0 = var_41_arg_0 & mask_SORT_19 [L283] SORT_13 var_41 = var_41_arg_0; [L284] SORT_13 var_42_arg_0 = var_14; [L285] SORT_13 var_42_arg_1 = var_41; [L286] SORT_1 var_42 = var_42_arg_0 == var_42_arg_1; [L287] SORT_19 var_36_arg_0 = var_35; [L288] var_36_arg_0 = var_36_arg_0 & mask_SORT_19 [L289] SORT_13 var_36 = var_36_arg_0; [L290] SORT_13 var_37_arg_0 = var_14; [L291] SORT_13 var_37_arg_1 = var_36; [L292] SORT_1 var_37 = var_37_arg_0 == var_37_arg_1; [L293] SORT_19 var_31_arg_0 = var_30; [L294] var_31_arg_0 = var_31_arg_0 & mask_SORT_19 [L295] SORT_13 var_31 = var_31_arg_0; [L296] SORT_13 var_32_arg_0 = var_14; [L297] SORT_13 var_32_arg_1 = var_31; [L298] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L299] SORT_19 var_26_arg_0 = var_25; [L300] var_26_arg_0 = var_26_arg_0 & mask_SORT_19 [L301] SORT_13 var_26 = var_26_arg_0; [L302] SORT_13 var_27_arg_0 = var_14; [L303] SORT_13 var_27_arg_1 = var_26; [L304] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L305] SORT_19 var_21_arg_0 = var_20; [L306] var_21_arg_0 = var_21_arg_0 & mask_SORT_19 [L307] SORT_13 var_21 = var_21_arg_0; [L308] SORT_13 var_22_arg_0 = var_14; [L309] SORT_13 var_22_arg_1 = var_21; [L310] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L311] SORT_13 var_16_arg_0 = var_14; [L312] SORT_13 var_16_arg_1 = var_15; [L313] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L314] SORT_1 var_17_arg_0 = var_16; [L315] SORT_3 var_17_arg_1 = state_10; [L316] SORT_3 var_17_arg_2 = input_9; [L317] EXPR var_17_arg_0 ? var_17_arg_1 : var_17_arg_2 [L317] SORT_3 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L318] SORT_1 var_23_arg_0 = var_22; [L319] SORT_3 var_23_arg_1 = state_18; [L320] SORT_3 var_23_arg_2 = var_17; [L321] EXPR var_23_arg_0 ? var_23_arg_1 : var_23_arg_2 [L321] SORT_3 var_23 = var_23_arg_0 ? var_23_arg_1 : var_23_arg_2; [L322] SORT_1 var_28_arg_0 = var_27; [L323] SORT_3 var_28_arg_1 = state_24; [L324] SORT_3 var_28_arg_2 = var_23; [L325] EXPR var_28_arg_0 ? var_28_arg_1 : var_28_arg_2 [L325] SORT_3 var_28 = var_28_arg_0 ? var_28_arg_1 : var_28_arg_2; [L326] SORT_1 var_33_arg_0 = var_32; [L327] SORT_3 var_33_arg_1 = state_29; [L328] SORT_3 var_33_arg_2 = var_28; [L329] EXPR var_33_arg_0 ? var_33_arg_1 : var_33_arg_2 [L329] SORT_3 var_33 = var_33_arg_0 ? var_33_arg_1 : var_33_arg_2; [L330] SORT_1 var_38_arg_0 = var_37; [L331] SORT_3 var_38_arg_1 = state_34; [L332] SORT_3 var_38_arg_2 = var_33; [L333] EXPR var_38_arg_0 ? var_38_arg_1 : var_38_arg_2 [L333] SORT_3 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L334] SORT_1 var_43_arg_0 = var_42; [L335] SORT_3 var_43_arg_1 = state_39; [L336] SORT_3 var_43_arg_2 = var_38; [L337] EXPR var_43_arg_0 ? var_43_arg_1 : var_43_arg_2 [L337] SORT_3 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L338] SORT_1 var_48_arg_0 = var_47; [L339] SORT_3 var_48_arg_1 = state_44; [L340] SORT_3 var_48_arg_2 = var_43; [L341] EXPR var_48_arg_0 ? var_48_arg_1 : var_48_arg_2 [L341] SORT_3 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L342] SORT_1 var_53_arg_0 = var_52; [L343] SORT_3 var_53_arg_1 = state_49; [L344] SORT_3 var_53_arg_2 = var_48; [L345] EXPR var_53_arg_0 ? var_53_arg_1 : var_53_arg_2 [L345] SORT_3 var_53 = var_53_arg_0 ? var_53_arg_1 : var_53_arg_2; [L346] SORT_1 var_58_arg_0 = var_57; [L347] SORT_3 var_58_arg_1 = state_54; [L348] SORT_3 var_58_arg_2 = var_53; [L349] EXPR var_58_arg_0 ? var_58_arg_1 : var_58_arg_2 [L349] SORT_3 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L350] SORT_1 var_64_arg_0 = var_63; [L351] SORT_3 var_64_arg_1 = state_59; [L352] SORT_3 var_64_arg_2 = var_58; [L353] EXPR var_64_arg_0 ? var_64_arg_1 : var_64_arg_2 [L353] SORT_3 var_64 = var_64_arg_0 ? var_64_arg_1 : var_64_arg_2; [L354] SORT_1 var_69_arg_0 = var_68; [L355] SORT_3 var_69_arg_1 = state_65; [L356] SORT_3 var_69_arg_2 = var_64; [L357] EXPR var_69_arg_0 ? var_69_arg_1 : var_69_arg_2 [L357] SORT_3 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L358] SORT_1 var_74_arg_0 = var_73; [L359] SORT_3 var_74_arg_1 = state_70; [L360] SORT_3 var_74_arg_2 = var_69; [L361] EXPR var_74_arg_0 ? var_74_arg_1 : var_74_arg_2 [L361] SORT_3 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L362] SORT_1 var_79_arg_0 = var_78; [L363] SORT_3 var_79_arg_1 = state_75; [L364] SORT_3 var_79_arg_2 = var_74; [L365] EXPR var_79_arg_0 ? var_79_arg_1 : var_79_arg_2 [L365] SORT_3 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L366] SORT_1 var_85_arg_0 = var_84; [L367] SORT_3 var_85_arg_1 = state_80; [L368] SORT_3 var_85_arg_2 = var_79; [L369] EXPR var_85_arg_0 ? var_85_arg_1 : var_85_arg_2 [L369] SORT_3 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L370] SORT_1 var_90_arg_0 = var_89; [L371] SORT_3 var_90_arg_1 = state_86; [L372] SORT_3 var_90_arg_2 = var_85; [L373] EXPR var_90_arg_0 ? var_90_arg_1 : var_90_arg_2 [L373] SORT_3 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L374] SORT_1 var_95_arg_0 = var_94; [L375] SORT_3 var_95_arg_1 = state_91; [L376] SORT_3 var_95_arg_2 = var_90; [L377] EXPR var_95_arg_0 ? var_95_arg_1 : var_95_arg_2 [L377] SORT_3 var_95 = var_95_arg_0 ? var_95_arg_1 : var_95_arg_2; [L378] SORT_1 var_99_arg_0 = var_98; [L379] SORT_3 var_99_arg_1 = state_96; [L380] SORT_3 var_99_arg_2 = var_95; [L381] EXPR var_99_arg_0 ? var_99_arg_1 : var_99_arg_2 [L381] SORT_3 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L382] var_99 = var_99 & mask_SORT_3 [L383] SORT_3 var_129_arg_0 = state_128; [L384] SORT_3 var_129_arg_1 = var_99; [L385] SORT_1 var_129 = var_129_arg_0 == var_129_arg_1; [L386] SORT_1 var_130_arg_0 = var_127; [L387] SORT_1 var_130_arg_1 = var_129; [L388] SORT_1 var_130 = var_130_arg_0 | var_130_arg_1; [L389] SORT_1 var_151_arg_0 = state_132; [L390] SORT_1 var_151_arg_1 = input_150; [L391] SORT_1 var_151_arg_2 = var_130; [L392] EXPR var_151_arg_0 ? var_151_arg_1 : var_151_arg_2 [L392] SORT_1 var_151 = var_151_arg_0 ? var_151_arg_1 : var_151_arg_2; [L393] SORT_1 var_154_arg_0 = var_151; [L394] SORT_1 var_154 = ~var_154_arg_0; [L395] SORT_1 var_155_arg_0 = var_153; [L396] SORT_1 var_155_arg_1 = var_154; [L397] SORT_1 var_155 = var_155_arg_0 & var_155_arg_1; [L398] var_155 = var_155 & mask_SORT_1 [L399] SORT_1 bad_156_arg_0 = var_155; [L400] CALL __VERIFIER_assert(!(bad_156_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L400] RET __VERIFIER_assert(!(bad_156_arg_0)) [L402] SORT_11 var_186_arg_0 = state_185; [L403] SORT_13 var_186 = var_186_arg_0 >> 0; [L404] var_186 = var_186 & mask_SORT_13 [L405] SORT_13 var_236_arg_0 = var_186; [L406] SORT_13 var_236_arg_1 = var_15; [L407] SORT_1 var_236 = var_236_arg_0 == var_236_arg_1; [L408] SORT_1 var_237_arg_0 = input_6; [L409] SORT_1 var_237_arg_1 = var_236; [L410] SORT_1 var_237 = var_237_arg_0 & var_237_arg_1; [L411] var_237 = var_237 & mask_SORT_1 [L412] SORT_1 var_372_arg_0 = var_237; [L413] SORT_3 var_372_arg_1 = input_4; [L414] SORT_3 var_372_arg_2 = state_10; [L415] EXPR var_372_arg_0 ? var_372_arg_1 : var_372_arg_2 [L415] SORT_3 var_372 = var_372_arg_0 ? var_372_arg_1 : var_372_arg_2; [L416] SORT_1 var_374_arg_0 = input_7; [L417] SORT_3 var_374_arg_1 = var_373; [L418] SORT_3 var_374_arg_2 = var_372; [L419] EXPR var_374_arg_0 ? var_374_arg_1 : var_374_arg_2 [L419] SORT_3 var_374 = var_374_arg_0 ? var_374_arg_1 : var_374_arg_2; [L420] SORT_3 next_375_arg_1 = var_374; [L421] SORT_1 var_160_arg_0 = input_6; [L422] SORT_1 var_160_arg_1 = input_5; [L423] SORT_1 var_160 = var_160_arg_0 | var_160_arg_1; [L424] SORT_1 var_161_arg_0 = var_160; [L425] SORT_1 var_161_arg_1 = input_7; [L426] SORT_1 var_161 = var_161_arg_0 | var_161_arg_1; [L427] var_161 = var_161 & mask_SORT_1 [L428] SORT_1 var_303_arg_0 = input_5; [L429] var_303_arg_0 = var_303_arg_0 & mask_SORT_1 [L430] SORT_11 var_303 = var_303_arg_0; [L431] SORT_11 var_304_arg_0 = state_12; [L432] SORT_11 var_304_arg_1 = var_303; [L433] SORT_11 var_304 = var_304_arg_0 + var_304_arg_1; [L434] SORT_1 var_376_arg_0 = var_161; [L435] SORT_11 var_376_arg_1 = var_304; [L436] SORT_11 var_376_arg_2 = state_12; [L437] EXPR var_376_arg_0 ? var_376_arg_1 : var_376_arg_2 [L437] SORT_11 var_376 = var_376_arg_0 ? var_376_arg_1 : var_376_arg_2; [L438] SORT_1 var_377_arg_0 = input_7; [L439] SORT_11 var_377_arg_1 = var_122; [L440] SORT_11 var_377_arg_2 = var_376; [L441] EXPR var_377_arg_0 ? var_377_arg_1 : var_377_arg_2 [L441] SORT_11 var_377 = var_377_arg_0 ? var_377_arg_1 : var_377_arg_2; [L442] SORT_11 next_378_arg_1 = var_377; [L443] SORT_19 var_229_arg_0 = var_20; [L444] var_229_arg_0 = var_229_arg_0 & mask_SORT_19 [L445] SORT_13 var_229 = var_229_arg_0; [L446] SORT_13 var_230_arg_0 = var_186; [L447] SORT_13 var_230_arg_1 = var_229; [L448] SORT_1 var_230 = var_230_arg_0 == var_230_arg_1; [L449] SORT_1 var_231_arg_0 = input_6; [L450] SORT_1 var_231_arg_1 = var_230; [L451] SORT_1 var_231 = var_231_arg_0 & var_231_arg_1; [L452] var_231 = var_231 & mask_SORT_1 [L453] SORT_1 var_379_arg_0 = var_231; [L454] SORT_3 var_379_arg_1 = input_4; [L455] SORT_3 var_379_arg_2 = state_18; [L456] EXPR var_379_arg_0 ? var_379_arg_1 : var_379_arg_2 [L456] SORT_3 var_379 = var_379_arg_0 ? var_379_arg_1 : var_379_arg_2; [L457] SORT_1 var_380_arg_0 = input_7; [L458] SORT_3 var_380_arg_1 = var_373; [L459] SORT_3 var_380_arg_2 = var_379; [L460] EXPR var_380_arg_0 ? var_380_arg_1 : var_380_arg_2 [L460] SORT_3 var_380 = var_380_arg_0 ? var_380_arg_1 : var_380_arg_2; [L461] SORT_3 next_381_arg_1 = var_380; [L462] SORT_19 var_222_arg_0 = var_25; [L463] var_222_arg_0 = var_222_arg_0 & mask_SORT_19 [L464] SORT_13 var_222 = var_222_arg_0; [L465] SORT_13 var_223_arg_0 = var_186; [L466] SORT_13 var_223_arg_1 = var_222; [L467] SORT_1 var_223 = var_223_arg_0 == var_223_arg_1; [L468] SORT_1 var_224_arg_0 = input_6; [L469] SORT_1 var_224_arg_1 = var_223; [L470] SORT_1 var_224 = var_224_arg_0 & var_224_arg_1; [L471] var_224 = var_224 & mask_SORT_1 [L472] SORT_1 var_382_arg_0 = var_224; [L473] SORT_3 var_382_arg_1 = input_4; [L474] SORT_3 var_382_arg_2 = state_24; [L475] EXPR var_382_arg_0 ? var_382_arg_1 : var_382_arg_2 [L475] SORT_3 var_382 = var_382_arg_0 ? var_382_arg_1 : var_382_arg_2; [L476] SORT_1 var_383_arg_0 = input_7; [L477] SORT_3 var_383_arg_1 = var_373; [L478] SORT_3 var_383_arg_2 = var_382; [L479] EXPR var_383_arg_0 ? var_383_arg_1 : var_383_arg_2 [L479] SORT_3 var_383 = var_383_arg_0 ? var_383_arg_1 : var_383_arg_2; [L480] SORT_3 next_384_arg_1 = var_383; [L481] SORT_19 var_215_arg_0 = var_30; [L482] var_215_arg_0 = var_215_arg_0 & mask_SORT_19 [L483] SORT_13 var_215 = var_215_arg_0; [L484] SORT_13 var_216_arg_0 = var_186; [L485] SORT_13 var_216_arg_1 = var_215; [L486] SORT_1 var_216 = var_216_arg_0 == var_216_arg_1; [L487] SORT_1 var_217_arg_0 = input_6; [L488] SORT_1 var_217_arg_1 = var_216; [L489] SORT_1 var_217 = var_217_arg_0 & var_217_arg_1; [L490] var_217 = var_217 & mask_SORT_1 [L491] SORT_1 var_385_arg_0 = var_217; [L492] SORT_3 var_385_arg_1 = input_4; [L493] SORT_3 var_385_arg_2 = state_29; [L494] EXPR var_385_arg_0 ? var_385_arg_1 : var_385_arg_2 [L494] SORT_3 var_385 = var_385_arg_0 ? var_385_arg_1 : var_385_arg_2; [L495] SORT_1 var_386_arg_0 = input_7; [L496] SORT_3 var_386_arg_1 = var_373; [L497] SORT_3 var_386_arg_2 = var_385; [L498] EXPR var_386_arg_0 ? var_386_arg_1 : var_386_arg_2 [L498] SORT_3 var_386 = var_386_arg_0 ? var_386_arg_1 : var_386_arg_2; [L499] SORT_3 next_387_arg_1 = var_386; [L500] SORT_19 var_208_arg_0 = var_35; [L501] var_208_arg_0 = var_208_arg_0 & mask_SORT_19 [L502] SORT_13 var_208 = var_208_arg_0; [L503] SORT_13 var_209_arg_0 = var_186; [L504] SORT_13 var_209_arg_1 = var_208; [L505] SORT_1 var_209 = var_209_arg_0 == var_209_arg_1; [L506] SORT_1 var_210_arg_0 = input_6; [L507] SORT_1 var_210_arg_1 = var_209; [L508] SORT_1 var_210 = var_210_arg_0 & var_210_arg_1; [L509] var_210 = var_210 & mask_SORT_1 [L510] SORT_1 var_388_arg_0 = var_210; [L511] SORT_3 var_388_arg_1 = input_4; [L512] SORT_3 var_388_arg_2 = state_34; [L513] EXPR var_388_arg_0 ? var_388_arg_1 : var_388_arg_2 [L513] SORT_3 var_388 = var_388_arg_0 ? var_388_arg_1 : var_388_arg_2; [L514] SORT_1 var_389_arg_0 = input_7; [L515] SORT_3 var_389_arg_1 = var_373; [L516] SORT_3 var_389_arg_2 = var_388; [L517] EXPR var_389_arg_0 ? var_389_arg_1 : var_389_arg_2 [L517] SORT_3 var_389 = var_389_arg_0 ? var_389_arg_1 : var_389_arg_2; [L518] SORT_3 next_390_arg_1 = var_389; [L519] SORT_19 var_201_arg_0 = var_40; [L520] var_201_arg_0 = var_201_arg_0 & mask_SORT_19 [L521] SORT_13 var_201 = var_201_arg_0; [L522] SORT_13 var_202_arg_0 = var_186; [L523] SORT_13 var_202_arg_1 = var_201; [L524] SORT_1 var_202 = var_202_arg_0 == var_202_arg_1; [L525] SORT_1 var_203_arg_0 = input_6; [L526] SORT_1 var_203_arg_1 = var_202; [L527] SORT_1 var_203 = var_203_arg_0 & var_203_arg_1; [L528] var_203 = var_203 & mask_SORT_1 [L529] SORT_1 var_391_arg_0 = var_203; [L530] SORT_3 var_391_arg_1 = input_4; [L531] SORT_3 var_391_arg_2 = state_39; [L532] EXPR var_391_arg_0 ? var_391_arg_1 : var_391_arg_2 [L532] SORT_3 var_391 = var_391_arg_0 ? var_391_arg_1 : var_391_arg_2; [L533] SORT_1 var_392_arg_0 = input_7; [L534] SORT_3 var_392_arg_1 = var_373; [L535] SORT_3 var_392_arg_2 = var_391; [L536] EXPR var_392_arg_0 ? var_392_arg_1 : var_392_arg_2 [L536] SORT_3 var_392 = var_392_arg_0 ? var_392_arg_1 : var_392_arg_2; [L537] SORT_3 next_393_arg_1 = var_392; [L538] SORT_19 var_194_arg_0 = var_45; [L539] var_194_arg_0 = var_194_arg_0 & mask_SORT_19 [L540] SORT_13 var_194 = var_194_arg_0; [L541] SORT_13 var_195_arg_0 = var_186; [L542] SORT_13 var_195_arg_1 = var_194; [L543] SORT_1 var_195 = var_195_arg_0 == var_195_arg_1; [L544] SORT_1 var_196_arg_0 = input_6; [L545] SORT_1 var_196_arg_1 = var_195; [L546] SORT_1 var_196 = var_196_arg_0 & var_196_arg_1; [L547] var_196 = var_196 & mask_SORT_1 [L548] SORT_1 var_394_arg_0 = var_196; [L549] SORT_3 var_394_arg_1 = input_4; [L550] SORT_3 var_394_arg_2 = state_44; [L551] EXPR var_394_arg_0 ? var_394_arg_1 : var_394_arg_2 [L551] SORT_3 var_394 = var_394_arg_0 ? var_394_arg_1 : var_394_arg_2; [L552] SORT_1 var_395_arg_0 = input_7; [L553] SORT_3 var_395_arg_1 = var_373; [L554] SORT_3 var_395_arg_2 = var_394; [L555] EXPR var_395_arg_0 ? var_395_arg_1 : var_395_arg_2 [L555] SORT_3 var_395 = var_395_arg_0 ? var_395_arg_1 : var_395_arg_2; [L556] SORT_3 next_396_arg_1 = var_395; [L557] SORT_19 var_298_arg_0 = var_50; [L558] var_298_arg_0 = var_298_arg_0 & mask_SORT_19 [L559] SORT_13 var_298 = var_298_arg_0; [L560] SORT_13 var_299_arg_0 = var_186; [L561] SORT_13 var_299_arg_1 = var_298; [L562] SORT_1 var_299 = var_299_arg_0 == var_299_arg_1; [L563] SORT_1 var_300_arg_0 = input_6; [L564] SORT_1 var_300_arg_1 = var_299; [L565] SORT_1 var_300 = var_300_arg_0 & var_300_arg_1; [L566] var_300 = var_300 & mask_SORT_1 [L567] SORT_1 var_397_arg_0 = var_300; [L568] SORT_3 var_397_arg_1 = input_4; [L569] SORT_3 var_397_arg_2 = state_49; [L570] EXPR var_397_arg_0 ? var_397_arg_1 : var_397_arg_2 [L570] SORT_3 var_397 = var_397_arg_0 ? var_397_arg_1 : var_397_arg_2; [L571] SORT_1 var_398_arg_0 = input_7; [L572] SORT_3 var_398_arg_1 = var_373; [L573] SORT_3 var_398_arg_2 = var_397; [L574] EXPR var_398_arg_0 ? var_398_arg_1 : var_398_arg_2 [L574] SORT_3 var_398 = var_398_arg_0 ? var_398_arg_1 : var_398_arg_2; [L575] SORT_3 next_399_arg_1 = var_398; [L576] SORT_19 var_291_arg_0 = var_55; [L577] var_291_arg_0 = var_291_arg_0 & mask_SORT_19 [L578] SORT_13 var_291 = var_291_arg_0; [L579] SORT_13 var_292_arg_0 = var_186; [L580] SORT_13 var_292_arg_1 = var_291; [L581] SORT_1 var_292 = var_292_arg_0 == var_292_arg_1; [L582] SORT_1 var_293_arg_0 = input_6; [L583] SORT_1 var_293_arg_1 = var_292; [L584] SORT_1 var_293 = var_293_arg_0 & var_293_arg_1; [L585] var_293 = var_293 & mask_SORT_1 [L586] SORT_1 var_400_arg_0 = var_293; [L587] SORT_3 var_400_arg_1 = input_4; [L588] SORT_3 var_400_arg_2 = state_54; [L589] EXPR var_400_arg_0 ? var_400_arg_1 : var_400_arg_2 [L589] SORT_3 var_400 = var_400_arg_0 ? var_400_arg_1 : var_400_arg_2; [L590] SORT_1 var_401_arg_0 = input_7; [L591] SORT_3 var_401_arg_1 = var_373; [L592] SORT_3 var_401_arg_2 = var_400; [L593] EXPR var_401_arg_0 ? var_401_arg_1 : var_401_arg_2 [L593] SORT_3 var_401 = var_401_arg_0 ? var_401_arg_1 : var_401_arg_2; [L594] SORT_3 next_402_arg_1 = var_401; [L595] SORT_60 var_284_arg_0 = var_61; [L596] var_284_arg_0 = var_284_arg_0 & mask_SORT_60 [L597] SORT_13 var_284 = var_284_arg_0; [L598] SORT_13 var_285_arg_0 = var_186; [L599] SORT_13 var_285_arg_1 = var_284; [L600] SORT_1 var_285 = var_285_arg_0 == var_285_arg_1; [L601] SORT_1 var_286_arg_0 = input_6; [L602] SORT_1 var_286_arg_1 = var_285; [L603] SORT_1 var_286 = var_286_arg_0 & var_286_arg_1; [L604] var_286 = var_286 & mask_SORT_1 [L605] SORT_1 var_403_arg_0 = var_286; [L606] SORT_3 var_403_arg_1 = input_4; [L607] SORT_3 var_403_arg_2 = state_59; [L608] EXPR var_403_arg_0 ? var_403_arg_1 : var_403_arg_2 [L608] SORT_3 var_403 = var_403_arg_0 ? var_403_arg_1 : var_403_arg_2; [L609] SORT_1 var_404_arg_0 = input_7; [L610] SORT_3 var_404_arg_1 = var_373; [L611] SORT_3 var_404_arg_2 = var_403; [L612] EXPR var_404_arg_0 ? var_404_arg_1 : var_404_arg_2 [L612] SORT_3 var_404 = var_404_arg_0 ? var_404_arg_1 : var_404_arg_2; [L613] SORT_3 next_405_arg_1 = var_404; [L614] SORT_60 var_277_arg_0 = var_66; [L615] var_277_arg_0 = var_277_arg_0 & mask_SORT_60 [L616] SORT_13 var_277 = var_277_arg_0; [L617] SORT_13 var_278_arg_0 = var_186; [L618] SORT_13 var_278_arg_1 = var_277; [L619] SORT_1 var_278 = var_278_arg_0 == var_278_arg_1; [L620] SORT_1 var_279_arg_0 = input_6; [L621] SORT_1 var_279_arg_1 = var_278; [L622] SORT_1 var_279 = var_279_arg_0 & var_279_arg_1; [L623] var_279 = var_279 & mask_SORT_1 [L624] SORT_1 var_406_arg_0 = var_279; [L625] SORT_3 var_406_arg_1 = input_4; [L626] SORT_3 var_406_arg_2 = state_65; [L627] EXPR var_406_arg_0 ? var_406_arg_1 : var_406_arg_2 [L627] SORT_3 var_406 = var_406_arg_0 ? var_406_arg_1 : var_406_arg_2; [L628] SORT_1 var_407_arg_0 = input_7; [L629] SORT_3 var_407_arg_1 = var_373; [L630] SORT_3 var_407_arg_2 = var_406; [L631] EXPR var_407_arg_0 ? var_407_arg_1 : var_407_arg_2 [L631] SORT_3 var_407 = var_407_arg_0 ? var_407_arg_1 : var_407_arg_2; [L632] SORT_3 next_408_arg_1 = var_407; [L633] SORT_60 var_270_arg_0 = var_71; [L634] var_270_arg_0 = var_270_arg_0 & mask_SORT_60 [L635] SORT_13 var_270 = var_270_arg_0; [L636] SORT_13 var_271_arg_0 = var_186; [L637] SORT_13 var_271_arg_1 = var_270; [L638] SORT_1 var_271 = var_271_arg_0 == var_271_arg_1; [L639] SORT_1 var_272_arg_0 = input_6; [L640] SORT_1 var_272_arg_1 = var_271; [L641] SORT_1 var_272 = var_272_arg_0 & var_272_arg_1; [L642] var_272 = var_272 & mask_SORT_1 [L643] SORT_1 var_409_arg_0 = var_272; [L644] SORT_3 var_409_arg_1 = input_4; [L645] SORT_3 var_409_arg_2 = state_70; [L646] EXPR var_409_arg_0 ? var_409_arg_1 : var_409_arg_2 [L646] SORT_3 var_409 = var_409_arg_0 ? var_409_arg_1 : var_409_arg_2; [L647] SORT_1 var_410_arg_0 = input_7; [L648] SORT_3 var_410_arg_1 = var_373; [L649] SORT_3 var_410_arg_2 = var_409; [L650] EXPR var_410_arg_0 ? var_410_arg_1 : var_410_arg_2 [L650] SORT_3 var_410 = var_410_arg_0 ? var_410_arg_1 : var_410_arg_2; [L651] SORT_3 next_411_arg_1 = var_410; [L652] SORT_60 var_263_arg_0 = var_76; [L653] var_263_arg_0 = var_263_arg_0 & mask_SORT_60 [L654] SORT_13 var_263 = var_263_arg_0; [L655] SORT_13 var_264_arg_0 = var_186; [L656] SORT_13 var_264_arg_1 = var_263; [L657] SORT_1 var_264 = var_264_arg_0 == var_264_arg_1; [L658] SORT_1 var_265_arg_0 = input_6; [L659] SORT_1 var_265_arg_1 = var_264; [L660] SORT_1 var_265 = var_265_arg_0 & var_265_arg_1; [L661] var_265 = var_265 & mask_SORT_1 [L662] SORT_1 var_412_arg_0 = var_265; [L663] SORT_3 var_412_arg_1 = input_4; [L664] SORT_3 var_412_arg_2 = state_75; [L665] EXPR var_412_arg_0 ? var_412_arg_1 : var_412_arg_2 [L665] SORT_3 var_412 = var_412_arg_0 ? var_412_arg_1 : var_412_arg_2; [L666] SORT_1 var_413_arg_0 = input_7; [L667] SORT_3 var_413_arg_1 = var_373; [L668] SORT_3 var_413_arg_2 = var_412; [L669] EXPR var_413_arg_0 ? var_413_arg_1 : var_413_arg_2 [L669] SORT_3 var_413 = var_413_arg_0 ? var_413_arg_1 : var_413_arg_2; [L670] SORT_3 next_414_arg_1 = var_413; [L671] SORT_81 var_256_arg_0 = var_82; [L672] var_256_arg_0 = var_256_arg_0 & mask_SORT_81 [L673] SORT_13 var_256 = var_256_arg_0; [L674] SORT_13 var_257_arg_0 = var_186; [L675] SORT_13 var_257_arg_1 = var_256; [L676] SORT_1 var_257 = var_257_arg_0 == var_257_arg_1; [L677] SORT_1 var_258_arg_0 = input_6; [L678] SORT_1 var_258_arg_1 = var_257; [L679] SORT_1 var_258 = var_258_arg_0 & var_258_arg_1; [L680] var_258 = var_258 & mask_SORT_1 [L681] SORT_1 var_415_arg_0 = var_258; [L682] SORT_3 var_415_arg_1 = input_4; [L683] SORT_3 var_415_arg_2 = state_80; [L684] EXPR var_415_arg_0 ? var_415_arg_1 : var_415_arg_2 [L684] SORT_3 var_415 = var_415_arg_0 ? var_415_arg_1 : var_415_arg_2; [L685] SORT_1 var_416_arg_0 = input_7; [L686] SORT_3 var_416_arg_1 = var_373; [L687] SORT_3 var_416_arg_2 = var_415; [L688] EXPR var_416_arg_0 ? var_416_arg_1 : var_416_arg_2 [L688] SORT_3 var_416 = var_416_arg_0 ? var_416_arg_1 : var_416_arg_2; [L689] SORT_3 next_417_arg_1 = var_416; [L690] SORT_81 var_249_arg_0 = var_87; [L691] var_249_arg_0 = var_249_arg_0 & mask_SORT_81 [L692] SORT_13 var_249 = var_249_arg_0; [L693] SORT_13 var_250_arg_0 = var_186; [L694] SORT_13 var_250_arg_1 = var_249; [L695] SORT_1 var_250 = var_250_arg_0 == var_250_arg_1; [L696] SORT_1 var_251_arg_0 = input_6; [L697] SORT_1 var_251_arg_1 = var_250; [L698] SORT_1 var_251 = var_251_arg_0 & var_251_arg_1; [L699] var_251 = var_251 & mask_SORT_1 [L700] SORT_1 var_418_arg_0 = var_251; [L701] SORT_3 var_418_arg_1 = input_4; [L702] SORT_3 var_418_arg_2 = state_86; [L703] EXPR var_418_arg_0 ? var_418_arg_1 : var_418_arg_2 [L703] SORT_3 var_418 = var_418_arg_0 ? var_418_arg_1 : var_418_arg_2; [L704] SORT_1 var_419_arg_0 = input_7; [L705] SORT_3 var_419_arg_1 = var_373; [L706] SORT_3 var_419_arg_2 = var_418; [L707] EXPR var_419_arg_0 ? var_419_arg_1 : var_419_arg_2 [L707] SORT_3 var_419 = var_419_arg_0 ? var_419_arg_1 : var_419_arg_2; [L708] SORT_3 next_420_arg_1 = var_419; [L709] SORT_1 var_242_arg_0 = var_92; [L710] var_242_arg_0 = var_242_arg_0 & mask_SORT_1 [L711] SORT_13 var_242 = var_242_arg_0; [L712] SORT_13 var_243_arg_0 = var_186; [L713] SORT_13 var_243_arg_1 = var_242; [L714] SORT_1 var_243 = var_243_arg_0 == var_243_arg_1; [L715] SORT_1 var_244_arg_0 = input_6; [L716] SORT_1 var_244_arg_1 = var_243; [L717] SORT_1 var_244 = var_244_arg_0 & var_244_arg_1; [L718] var_244 = var_244 & mask_SORT_1 [L719] SORT_1 var_421_arg_0 = var_244; [L720] SORT_3 var_421_arg_1 = input_4; [L721] SORT_3 var_421_arg_2 = state_91; [L722] EXPR var_421_arg_0 ? var_421_arg_1 : var_421_arg_2 [L722] SORT_3 var_421 = var_421_arg_0 ? var_421_arg_1 : var_421_arg_2; [L723] SORT_1 var_422_arg_0 = input_7; [L724] SORT_3 var_422_arg_1 = var_373; [L725] SORT_3 var_422_arg_2 = var_421; [L726] EXPR var_422_arg_0 ? var_422_arg_1 : var_422_arg_2 [L726] SORT_3 var_422 = var_422_arg_0 ? var_422_arg_1 : var_422_arg_2; [L727] SORT_3 next_423_arg_1 = var_422; [L728] SORT_13 var_187_arg_0 = var_186; [L729] SORT_1 var_187 = var_187_arg_0 != 0; [L730] SORT_1 var_188_arg_0 = var_187; [L731] SORT_1 var_188 = ~var_188_arg_0; [L732] SORT_1 var_189_arg_0 = input_6; [L733] SORT_1 var_189_arg_1 = var_188; [L734] SORT_1 var_189 = var_189_arg_0 & var_189_arg_1; [L735] var_189 = var_189 & mask_SORT_1 [L736] SORT_1 var_424_arg_0 = var_189; [L737] SORT_3 var_424_arg_1 = input_4; [L738] SORT_3 var_424_arg_2 = state_96; [L739] EXPR var_424_arg_0 ? var_424_arg_1 : var_424_arg_2 [L739] SORT_3 var_424 = var_424_arg_0 ? var_424_arg_1 : var_424_arg_2; [L740] SORT_1 var_425_arg_0 = input_7; [L741] SORT_3 var_425_arg_1 = var_373; [L742] SORT_3 var_425_arg_2 = var_424; [L743] EXPR var_425_arg_0 ? var_425_arg_1 : var_425_arg_2 [L743] SORT_3 var_425 = var_425_arg_0 ? var_425_arg_1 : var_425_arg_2; [L744] SORT_3 next_426_arg_1 = var_425; [L745] SORT_1 var_427_arg_0 = input_6; [L746] var_427_arg_0 = var_427_arg_0 & mask_SORT_1 [L747] SORT_11 var_427 = var_427_arg_0; [L748] SORT_11 var_428_arg_0 = state_101; [L749] SORT_11 var_428_arg_1 = var_427; [L750] SORT_11 var_428 = var_428_arg_0 + var_428_arg_1; [L751] SORT_1 var_429_arg_0 = input_5; [L752] var_429_arg_0 = var_429_arg_0 & mask_SORT_1 [L753] SORT_11 var_429 = var_429_arg_0; [L754] SORT_11 var_430_arg_0 = var_428; [L755] SORT_11 var_430_arg_1 = var_429; [L756] SORT_11 var_430 = var_430_arg_0 - var_430_arg_1; [L757] SORT_1 var_431_arg_0 = input_7; [L758] SORT_11 var_431_arg_1 = var_122; [L759] SORT_11 var_431_arg_2 = var_430; [L760] EXPR var_431_arg_0 ? var_431_arg_1 : var_431_arg_2 [L760] SORT_11 var_431 = var_431_arg_0 ? var_431_arg_1 : var_431_arg_2; [L761] var_431 = var_431 & mask_SORT_11 [L762] SORT_11 next_432_arg_1 = var_431; [L763] SORT_1 var_333_arg_0 = state_109; [L764] SORT_1 var_333 = ~var_333_arg_0; [L765] var_333 = var_333 & mask_SORT_1 [L766] SORT_1 var_329_arg_0 = input_8; [L767] SORT_1 var_329_arg_1 = input_6; [L768] SORT_1 var_329 = var_329_arg_0 & var_329_arg_1; [L769] SORT_1 var_330_arg_0 = state_109; [L770] SORT_1 var_330_arg_1 = var_329; [L771] SORT_1 var_330 = var_330_arg_0 | var_330_arg_1; [L772] SORT_1 var_433_arg_0 = var_333; [L773] SORT_1 var_433_arg_1 = var_330; [L774] SORT_1 var_433_arg_2 = state_109; [L775] EXPR var_433_arg_0 ? var_433_arg_1 : var_433_arg_2 [L775] SORT_1 var_433 = var_433_arg_0 ? var_433_arg_1 : var_433_arg_2; [L776] SORT_1 var_434_arg_0 = input_7; [L777] SORT_1 var_434_arg_1 = var_152; [L778] SORT_1 var_434_arg_2 = var_433; [L779] EXPR var_434_arg_0 ? var_434_arg_1 : var_434_arg_2 [L779] SORT_1 var_434 = var_434_arg_0 ? var_434_arg_1 : var_434_arg_2; [L780] SORT_1 next_435_arg_1 = var_434; [L781] SORT_1 var_341_arg_0 = var_126; [L782] SORT_1 var_341_arg_1 = state_110; [L783] SORT_1 var_341 = var_341_arg_0 | var_341_arg_1; [L784] SORT_1 var_436_arg_0 = var_92; [L785] SORT_1 var_436_arg_1 = var_341; [L786] SORT_1 var_436_arg_2 = state_110; [L787] EXPR var_436_arg_0 ? var_436_arg_1 : var_436_arg_2 [L787] SORT_1 var_436 = var_436_arg_0 ? var_436_arg_1 : var_436_arg_2; [L788] SORT_1 var_437_arg_0 = input_7; [L789] SORT_1 var_437_arg_1 = var_152; [L790] SORT_1 var_437_arg_2 = var_436; [L791] EXPR var_437_arg_0 ? var_437_arg_1 : var_437_arg_2 [L791] SORT_1 var_437 = var_437_arg_0 ? var_437_arg_1 : var_437_arg_2; [L792] SORT_1 next_438_arg_1 = var_437; [L793] SORT_1 var_353_arg_0 = input_6; [L794] SORT_1 var_353_arg_1 = input_5; [L795] SORT_1 var_353 = var_353_arg_0 | var_353_arg_1; [L796] SORT_1 var_354_arg_0 = var_353; [L797] SORT_1 var_354_arg_1 = input_7; [L798] SORT_1 var_354 = var_354_arg_0 | var_354_arg_1; [L799] SORT_1 var_355_arg_0 = var_354; [L800] SORT_1 var_355_arg_1 = state_109; [L801] SORT_1 var_355 = var_355_arg_0 | var_355_arg_1; [L802] var_355 = var_355 & mask_SORT_1 [L803] SORT_1 var_439_arg_0 = var_355; [L804] SORT_11 var_439_arg_1 = var_123; [L805] SORT_11 var_439_arg_2 = state_113; [L806] EXPR var_439_arg_0 ? var_439_arg_1 : var_439_arg_2 [L806] SORT_11 var_439 = var_439_arg_0 ? var_439_arg_1 : var_439_arg_2; [L807] SORT_1 var_440_arg_0 = input_7; [L808] SORT_11 var_440_arg_1 = var_122; [L809] SORT_11 var_440_arg_2 = var_439; [L810] EXPR var_440_arg_0 ? var_440_arg_1 : var_440_arg_2 [L810] SORT_11 var_440 = var_440_arg_0 ? var_440_arg_1 : var_440_arg_2; [L811] var_440 = var_440 & mask_SORT_11 [L812] SORT_11 next_441_arg_1 = var_440; [L813] SORT_1 var_338_arg_0 = var_329; [L814] SORT_1 var_338_arg_1 = var_333; [L815] SORT_1 var_338 = var_338_arg_0 & var_338_arg_1; [L816] var_338 = var_338 & mask_SORT_1 [L817] SORT_1 var_442_arg_0 = var_338; [L818] SORT_3 var_442_arg_1 = input_4; [L819] SORT_3 var_442_arg_2 = state_128; [L820] EXPR var_442_arg_0 ? var_442_arg_1 : var_442_arg_2 [L820] SORT_3 var_442 = var_442_arg_0 ? var_442_arg_1 : var_442_arg_2; [L821] SORT_1 var_443_arg_0 = input_7; [L822] SORT_3 var_443_arg_1 = var_373; [L823] SORT_3 var_443_arg_2 = var_442; [L824] EXPR var_443_arg_0 ? var_443_arg_1 : var_443_arg_2 [L824] SORT_3 var_443 = var_443_arg_0 ? var_443_arg_1 : var_443_arg_2; [L825] var_443 = var_443 & mask_SORT_3 [L826] SORT_3 next_444_arg_1 = var_443; [L827] SORT_1 next_445_arg_1 = var_152; [L828] SORT_1 var_309_arg_0 = input_6; [L829] var_309_arg_0 = var_309_arg_0 & mask_SORT_1 [L830] SORT_11 var_309 = var_309_arg_0; [L831] SORT_11 var_310_arg_0 = state_185; [L832] SORT_11 var_310_arg_1 = var_309; [L833] SORT_11 var_310 = var_310_arg_0 + var_310_arg_1; [L834] SORT_1 var_446_arg_0 = var_161; [L835] SORT_11 var_446_arg_1 = var_310; [L836] SORT_11 var_446_arg_2 = state_185; [L837] EXPR var_446_arg_0 ? var_446_arg_1 : var_446_arg_2 [L837] SORT_11 var_446 = var_446_arg_0 ? var_446_arg_1 : var_446_arg_2; [L838] SORT_1 var_447_arg_0 = input_7; [L839] SORT_11 var_447_arg_1 = var_122; [L840] SORT_11 var_447_arg_2 = var_446; [L841] EXPR var_447_arg_0 ? var_447_arg_1 : var_447_arg_2 [L841] SORT_11 var_447 = var_447_arg_0 ? var_447_arg_1 : var_447_arg_2; [L842] SORT_11 next_448_arg_1 = var_447; [L844] state_10 = next_375_arg_1 [L845] state_12 = next_378_arg_1 [L846] state_18 = next_381_arg_1 [L847] state_24 = next_384_arg_1 [L848] state_29 = next_387_arg_1 [L849] state_34 = next_390_arg_1 [L850] state_39 = next_393_arg_1 [L851] state_44 = next_396_arg_1 [L852] state_49 = next_399_arg_1 [L853] state_54 = next_402_arg_1 [L854] state_59 = next_405_arg_1 [L855] state_65 = next_408_arg_1 [L856] state_70 = next_411_arg_1 [L857] state_75 = next_414_arg_1 [L858] state_80 = next_417_arg_1 [L859] state_86 = next_420_arg_1 [L860] state_91 = next_423_arg_1 [L861] state_96 = next_426_arg_1 [L862] state_101 = next_432_arg_1 [L863] state_109 = next_435_arg_1 [L864] state_110 = next_438_arg_1 [L865] state_113 = next_441_arg_1 [L866] state_128 = next_444_arg_1 [L867] state_132 = next_445_arg_1 [L868] state_185 = next_448_arg_1 VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=25, input_4=0, input_5=1, input_6=2, input_7=0, input_8=0, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=4, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=0, next_393_arg_1=0, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=26, next_414_arg_1=0, next_417_arg_1=0, next_420_arg_1=0, next_423_arg_1=0, next_426_arg_1=0, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=0, next_441_arg_1=1, next_444_arg_1=18446744073709551615, next_445_arg_1=0, next_448_arg_1=47, state_10=0, state_101=1, state_109=1, state_110=0, state_113=1, state_12=4, state_128=18446744073709551615, state_132=0, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=0, var_102_arg_0=0, var_103=9, var_103_arg_0=0, var_105=17, var_106=0, var_106_arg_0=0, var_107=1, var_107_arg_0=0, var_107_arg_1=0, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=21, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=1, var_117_arg_0=2, var_117_arg_1=3, var_118=1, var_118_arg_0=1, var_119=22, var_119_arg_0=21, var_119_arg_1=1, var_120=1, var_120_arg_0=1, var_121=21, var_121_arg_0=22, var_121_arg_1=1, var_122=0, var_123=1, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=21, var_124=1, var_124_arg_0=1, var_125=254, var_125_arg_0=1, var_126=0, var_126_arg_0=1, var_126_arg_1=254, var_127=1, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=1, var_138=0, var_138_arg_0=1, var_139=26, var_139_arg_0=2, var_14=0, var_140=1, var_140_arg_0=0, var_140_arg_1=26, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=0, var_144_arg_0=9, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=0, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_14_arg_0=4, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=127, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=127, var_16=0, var_160=0, var_160_arg_0=2, var_160_arg_1=1, var_161=0, var_161_arg_0=0, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=47, var_187=0, var_187_arg_0=0, var_188=0, var_188_arg_0=0, var_189=0, var_189_arg_0=2, var_189_arg_1=0, var_194=0, var_194_arg_0=0, var_195=1, var_195_arg_0=0, var_195_arg_1=0, var_196=0, var_196_arg_0=2, var_196_arg_1=1, var_20=15, var_201=18, var_201_arg_0=18, var_202=0, var_202_arg_0=0, var_202_arg_1=18, var_203=0, var_203_arg_0=2, var_203_arg_1=0, var_208=255, var_208_arg_0=255, var_209=0, var_209_arg_0=0, var_209_arg_1=255, var_21=0, var_210=0, var_210_arg_0=2, var_210_arg_1=0, var_215=2, var_215_arg_0=2, var_216=0, var_216_arg_0=0, var_216_arg_1=2, var_217=0, var_217_arg_0=2, var_217_arg_1=0, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=2, var_224_arg_1=1, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=0, var_230_arg_0=0, var_230_arg_1=1, var_231=0, var_231_arg_0=2, var_231_arg_1=0, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=2, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=2, var_244_arg_1=0, var_249=1, var_249_arg_0=1, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=1, var_251=0, var_251_arg_0=2, var_251_arg_1=0, var_256=16, var_256_arg_0=16, var_257=0, var_257_arg_0=0, var_257_arg_1=16, var_258=0, var_258_arg_0=2, var_258_arg_1=0, var_26=0, var_263=1, var_263_arg_0=1, var_264=0, var_264_arg_0=0, var_264_arg_1=1, var_265=0, var_265_arg_0=2, var_265_arg_1=0, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=0, var_271_arg_0=0, var_271_arg_1=1, var_272=0, var_272_arg_0=2, var_272_arg_1=0, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=2, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=4, var_284_arg_0=4, var_285=0, var_285_arg_0=0, var_285_arg_1=4, var_286=0, var_286_arg_0=2, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=2, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=2, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=5, var_304_arg_0=4, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=13, var_310=47, var_310_arg_0=47, var_310_arg_1=0, var_31_arg_0=13, var_32=0, var_329=0, var_329_arg_0=0, var_329_arg_1=2, var_32_arg_0=0, var_32_arg_1=13, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=0, var_33_arg_1=0, var_33_arg_2=0, var_341=0, var_341_arg_0=0, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=2, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=4, var_376_arg_0=0, var_376_arg_1=5, var_376_arg_2=4, var_377=4, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=4, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=0, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=0, var_391=0, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=0, var_392=0, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=0, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_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_409=26, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=26, var_41=1, var_410=26, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=26, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=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_418=0, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=0, var_419=0, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=0, var_41_arg_0=1, var_42=0, var_421=0, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=0, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=0, var_425=0, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=0, var_427=0, var_427_arg_0=0, var_428=0, var_428_arg_0=0, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=1, var_43=0, var_430=255, var_430_arg_0=0, var_430_arg_1=1, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=255, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=0, var_436_arg_0=1, 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_439=1, var_439_arg_0=1, var_439_arg_1=1, var_439_arg_2=21, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=1, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=1, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=18446744073709551615, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=47, var_446_arg_0=0, var_446_arg_1=47, var_446_arg_2=47, var_447=47, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=47, var_45=10, var_46=10, var_46_arg_0=10, var_47=0, var_47_arg_0=0, var_47_arg_1=10, var_48=0, var_48_arg_0=0, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=1, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=6, var_67_arg_0=6, var_68=0, var_68_arg_0=0, var_68_arg_1=6, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=26, var_74_arg_2=0, var_76=4, var_77=0, var_77_arg_0=0, var_78=1, var_78_arg_0=0, var_78_arg_1=0, var_79=0, var_79_arg_0=1, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=0, var_83_arg_0=0, var_84=1, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=1, var_85_arg_1=0, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=0, var_90_arg_0=1, var_90_arg_1=0, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0, var_99_arg_2=0] [L106] input_2 = __VERIFIER_nondet_uchar() [L107] input_4 = __VERIFIER_nondet_ulong() [L108] input_5 = __VERIFIER_nondet_uchar() [L109] input_6 = __VERIFIER_nondet_uchar() [L110] input_7 = __VERIFIER_nondet_uchar() [L111] input_7 = input_7 & mask_SORT_1 [L112] input_8 = __VERIFIER_nondet_uchar() [L113] input_9 = __VERIFIER_nondet_ulong() [L114] input_150 = __VERIFIER_nondet_uchar() [L116] SORT_1 var_134_arg_0 = input_7; [L117] SORT_1 var_134_arg_1 = state_132; [L118] SORT_1 var_134 = var_134_arg_0 == var_134_arg_1; [L119] SORT_1 var_135_arg_0 = var_92; [L120] SORT_1 var_135 = ~var_135_arg_0; [L121] SORT_1 var_136_arg_0 = var_134; [L122] SORT_1 var_136_arg_1 = var_135; [L123] SORT_1 var_136 = var_136_arg_0 | var_136_arg_1; [L124] var_136 = var_136 & mask_SORT_1 [L125] SORT_1 constr_137_arg_0 = var_136; VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=6, input_5=1, input_6=1, input_7=0, input_8=18, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=4, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=0, next_393_arg_1=0, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=26, next_414_arg_1=0, next_417_arg_1=0, next_420_arg_1=0, next_423_arg_1=0, next_426_arg_1=0, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=0, next_441_arg_1=1, next_444_arg_1=18446744073709551615, next_445_arg_1=0, next_448_arg_1=47, state_10=0, state_101=1, state_109=1, state_110=0, state_113=1, state_12=4, state_128=18446744073709551615, state_132=0, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=0, var_102_arg_0=0, var_103=9, var_103_arg_0=0, var_105=17, var_106=0, var_106_arg_0=0, var_107=1, var_107_arg_0=0, var_107_arg_1=0, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=21, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=1, var_117_arg_0=2, var_117_arg_1=3, var_118=1, var_118_arg_0=1, var_119=22, var_119_arg_0=21, var_119_arg_1=1, var_120=1, var_120_arg_0=1, var_121=21, var_121_arg_0=22, var_121_arg_1=1, var_122=0, var_123=1, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=21, var_124=1, var_124_arg_0=1, var_125=254, var_125_arg_0=1, var_126=0, var_126_arg_0=1, var_126_arg_1=254, var_127=1, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=255, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=255, var_138=0, var_138_arg_0=1, var_139=26, var_139_arg_0=2, var_14=0, var_140=1, var_140_arg_0=0, var_140_arg_1=26, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=0, var_144_arg_0=9, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=0, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_14_arg_0=4, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=127, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=127, var_16=0, var_160=0, var_160_arg_0=2, var_160_arg_1=1, var_161=0, var_161_arg_0=0, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=47, var_187=0, var_187_arg_0=0, var_188=0, var_188_arg_0=0, var_189=0, var_189_arg_0=2, var_189_arg_1=0, var_194=0, var_194_arg_0=0, var_195=1, var_195_arg_0=0, var_195_arg_1=0, var_196=0, var_196_arg_0=2, var_196_arg_1=1, var_20=15, var_201=18, var_201_arg_0=18, var_202=0, var_202_arg_0=0, var_202_arg_1=18, var_203=0, var_203_arg_0=2, var_203_arg_1=0, var_208=255, var_208_arg_0=255, var_209=0, var_209_arg_0=0, var_209_arg_1=255, var_21=0, var_210=0, var_210_arg_0=2, var_210_arg_1=0, var_215=2, var_215_arg_0=2, var_216=0, var_216_arg_0=0, var_216_arg_1=2, var_217=0, var_217_arg_0=2, var_217_arg_1=0, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=2, var_224_arg_1=1, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=0, var_230_arg_0=0, var_230_arg_1=1, var_231=0, var_231_arg_0=2, var_231_arg_1=0, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=2, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=2, var_244_arg_1=0, var_249=1, var_249_arg_0=1, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=1, var_251=0, var_251_arg_0=2, var_251_arg_1=0, var_256=16, var_256_arg_0=16, var_257=0, var_257_arg_0=0, var_257_arg_1=16, var_258=0, var_258_arg_0=2, var_258_arg_1=0, var_26=0, var_263=1, var_263_arg_0=1, var_264=0, var_264_arg_0=0, var_264_arg_1=1, var_265=0, var_265_arg_0=2, var_265_arg_1=0, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=0, var_271_arg_0=0, var_271_arg_1=1, var_272=0, var_272_arg_0=2, var_272_arg_1=0, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=2, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=4, var_284_arg_0=4, var_285=0, var_285_arg_0=0, var_285_arg_1=4, var_286=0, var_286_arg_0=2, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=2, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=2, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=5, var_304_arg_0=4, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=13, var_310=47, var_310_arg_0=47, var_310_arg_1=0, var_31_arg_0=13, var_32=0, var_329=0, var_329_arg_0=0, var_329_arg_1=2, var_32_arg_0=0, var_32_arg_1=13, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=0, var_33_arg_1=0, var_33_arg_2=0, var_341=0, var_341_arg_0=0, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=2, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=4, var_376_arg_0=0, var_376_arg_1=5, var_376_arg_2=4, var_377=4, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=4, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=0, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=0, var_391=0, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=0, var_392=0, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=0, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_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_409=26, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=26, var_41=1, var_410=26, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=26, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=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_418=0, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=0, var_419=0, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=0, var_41_arg_0=1, var_42=0, var_421=0, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=0, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=0, var_425=0, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=0, var_427=0, var_427_arg_0=0, var_428=0, var_428_arg_0=0, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=1, var_43=0, var_430=255, var_430_arg_0=0, var_430_arg_1=1, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=255, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=0, var_436_arg_0=1, 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_439=1, var_439_arg_0=1, var_439_arg_1=1, var_439_arg_2=21, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=1, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=1, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=18446744073709551615, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=47, var_446_arg_0=0, var_446_arg_1=47, var_446_arg_2=47, var_447=47, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=47, var_45=10, var_46=10, var_46_arg_0=10, var_47=0, var_47_arg_0=0, var_47_arg_1=10, var_48=0, var_48_arg_0=0, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=1, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=6, var_67_arg_0=6, var_68=0, var_68_arg_0=0, var_68_arg_1=6, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=26, var_74_arg_2=0, var_76=4, var_77=0, var_77_arg_0=0, var_78=1, var_78_arg_0=0, var_78_arg_1=0, var_79=0, var_79_arg_0=1, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=0, var_83_arg_0=0, var_84=1, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=1, var_85_arg_1=0, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=0, var_90_arg_0=1, var_90_arg_1=0, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0, var_99_arg_2=0] [L126] CALL assume_abort_if_not(constr_137_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L126] RET assume_abort_if_not(constr_137_arg_0) VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=6, input_5=1, input_6=1, input_7=0, input_8=18, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=4, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=0, next_393_arg_1=0, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=26, next_414_arg_1=0, next_417_arg_1=0, next_420_arg_1=0, next_423_arg_1=0, next_426_arg_1=0, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=0, next_441_arg_1=1, next_444_arg_1=18446744073709551615, next_445_arg_1=0, next_448_arg_1=47, state_10=0, state_101=1, state_109=1, state_110=0, state_113=1, state_12=4, state_128=18446744073709551615, state_132=0, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=0, var_102_arg_0=0, var_103=9, var_103_arg_0=0, var_105=17, var_106=0, var_106_arg_0=0, var_107=1, var_107_arg_0=0, var_107_arg_1=0, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=21, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=1, var_117_arg_0=2, var_117_arg_1=3, var_118=1, var_118_arg_0=1, var_119=22, var_119_arg_0=21, var_119_arg_1=1, var_120=1, var_120_arg_0=1, var_121=21, var_121_arg_0=22, var_121_arg_1=1, var_122=0, var_123=1, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=21, var_124=1, var_124_arg_0=1, var_125=254, var_125_arg_0=1, var_126=0, var_126_arg_0=1, var_126_arg_1=254, var_127=1, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=255, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=255, var_138=0, var_138_arg_0=1, var_139=26, var_139_arg_0=2, var_14=0, var_140=1, var_140_arg_0=0, var_140_arg_1=26, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=0, var_144_arg_0=9, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=0, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_14_arg_0=4, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=127, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=127, var_16=0, var_160=0, var_160_arg_0=2, var_160_arg_1=1, var_161=0, var_161_arg_0=0, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=47, var_187=0, var_187_arg_0=0, var_188=0, var_188_arg_0=0, var_189=0, var_189_arg_0=2, var_189_arg_1=0, var_194=0, var_194_arg_0=0, var_195=1, var_195_arg_0=0, var_195_arg_1=0, var_196=0, var_196_arg_0=2, var_196_arg_1=1, var_20=15, var_201=18, var_201_arg_0=18, var_202=0, var_202_arg_0=0, var_202_arg_1=18, var_203=0, var_203_arg_0=2, var_203_arg_1=0, var_208=255, var_208_arg_0=255, var_209=0, var_209_arg_0=0, var_209_arg_1=255, var_21=0, var_210=0, var_210_arg_0=2, var_210_arg_1=0, var_215=2, var_215_arg_0=2, var_216=0, var_216_arg_0=0, var_216_arg_1=2, var_217=0, var_217_arg_0=2, var_217_arg_1=0, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=2, var_224_arg_1=1, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=0, var_230_arg_0=0, var_230_arg_1=1, var_231=0, var_231_arg_0=2, var_231_arg_1=0, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=2, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=2, var_244_arg_1=0, var_249=1, var_249_arg_0=1, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=1, var_251=0, var_251_arg_0=2, var_251_arg_1=0, var_256=16, var_256_arg_0=16, var_257=0, var_257_arg_0=0, var_257_arg_1=16, var_258=0, var_258_arg_0=2, var_258_arg_1=0, var_26=0, var_263=1, var_263_arg_0=1, var_264=0, var_264_arg_0=0, var_264_arg_1=1, var_265=0, var_265_arg_0=2, var_265_arg_1=0, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=0, var_271_arg_0=0, var_271_arg_1=1, var_272=0, var_272_arg_0=2, var_272_arg_1=0, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=2, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=4, var_284_arg_0=4, var_285=0, var_285_arg_0=0, var_285_arg_1=4, var_286=0, var_286_arg_0=2, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=2, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=2, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=5, var_304_arg_0=4, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=13, var_310=47, var_310_arg_0=47, var_310_arg_1=0, var_31_arg_0=13, var_32=0, var_329=0, var_329_arg_0=0, var_329_arg_1=2, var_32_arg_0=0, var_32_arg_1=13, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=0, var_33_arg_1=0, var_33_arg_2=0, var_341=0, var_341_arg_0=0, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=2, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=4, var_376_arg_0=0, var_376_arg_1=5, var_376_arg_2=4, var_377=4, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=4, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=0, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=0, var_391=0, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=0, var_392=0, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=0, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_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_409=26, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=26, var_41=1, var_410=26, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=26, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=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_418=0, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=0, var_419=0, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=0, var_41_arg_0=1, var_42=0, var_421=0, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=0, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=0, var_425=0, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=0, var_427=0, var_427_arg_0=0, var_428=0, var_428_arg_0=0, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=1, var_43=0, var_430=255, var_430_arg_0=0, var_430_arg_1=1, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=255, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=0, var_436_arg_0=1, 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_439=1, var_439_arg_0=1, var_439_arg_1=1, var_439_arg_2=21, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=1, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=1, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=18446744073709551615, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=47, var_446_arg_0=0, var_446_arg_1=47, var_446_arg_2=47, var_447=47, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=47, var_45=10, var_46=10, var_46_arg_0=10, var_47=0, var_47_arg_0=0, var_47_arg_1=10, var_48=0, var_48_arg_0=0, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=1, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=6, var_67_arg_0=6, var_68=0, var_68_arg_0=0, var_68_arg_1=6, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=26, var_74_arg_2=0, var_76=4, var_77=0, var_77_arg_0=0, var_78=1, var_78_arg_0=0, var_78_arg_1=0, var_79=0, var_79_arg_0=1, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=0, var_83_arg_0=0, var_84=1, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=1, var_85_arg_1=0, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=0, var_90_arg_0=1, var_90_arg_1=0, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0, var_99_arg_2=0] [L127] SORT_13 var_106_arg_0 = var_105; [L128] var_106_arg_0 = var_106_arg_0 & mask_SORT_13 [L129] SORT_11 var_106 = var_106_arg_0; [L130] SORT_11 var_107_arg_0 = state_101; [L131] SORT_11 var_107_arg_1 = var_106; [L132] SORT_1 var_107 = var_107_arg_0 == var_107_arg_1; [L133] SORT_1 var_138_arg_0 = var_107; [L134] SORT_1 var_138 = ~var_138_arg_0; [L135] SORT_1 var_139_arg_0 = input_6; [L136] SORT_1 var_139 = ~var_139_arg_0; [L137] SORT_1 var_140_arg_0 = var_138; [L138] SORT_1 var_140_arg_1 = var_139; [L139] SORT_1 var_140 = var_140_arg_0 | var_140_arg_1; [L140] SORT_1 var_141_arg_0 = var_92; [L141] SORT_1 var_141 = ~var_141_arg_0; [L142] SORT_1 var_142_arg_0 = var_140; [L143] SORT_1 var_142_arg_1 = var_141; [L144] SORT_1 var_142 = var_142_arg_0 | var_142_arg_1; [L145] var_142 = var_142 & mask_SORT_1 [L146] SORT_1 constr_143_arg_0 = var_142; VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=6, input_5=1, input_6=1, input_7=0, input_8=18, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=4, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=0, next_393_arg_1=0, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=26, next_414_arg_1=0, next_417_arg_1=0, next_420_arg_1=0, next_423_arg_1=0, next_426_arg_1=0, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=0, next_441_arg_1=1, next_444_arg_1=18446744073709551615, next_445_arg_1=0, next_448_arg_1=47, state_10=0, state_101=1, state_109=1, state_110=0, state_113=1, state_12=4, state_128=18446744073709551615, state_132=0, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=0, var_102_arg_0=0, var_103=9, var_103_arg_0=0, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=21, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=1, var_117_arg_0=2, var_117_arg_1=3, var_118=1, var_118_arg_0=1, var_119=22, var_119_arg_0=21, var_119_arg_1=1, var_120=1, var_120_arg_0=1, var_121=21, var_121_arg_0=22, var_121_arg_1=1, var_122=0, var_123=1, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=21, var_124=1, var_124_arg_0=1, var_125=254, var_125_arg_0=1, var_126=0, var_126_arg_0=1, var_126_arg_1=254, var_127=1, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=255, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=255, var_138=1, var_138_arg_0=1, var_139=0, var_139_arg_0=1, var_14=0, var_140=1, var_140_arg_0=1, var_140_arg_1=0, var_141=2, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=2, var_144=0, var_144_arg_0=9, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=0, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_14_arg_0=4, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=127, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=127, var_16=0, var_160=0, var_160_arg_0=2, var_160_arg_1=1, var_161=0, var_161_arg_0=0, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=47, var_187=0, var_187_arg_0=0, var_188=0, var_188_arg_0=0, var_189=0, var_189_arg_0=2, var_189_arg_1=0, var_194=0, var_194_arg_0=0, var_195=1, var_195_arg_0=0, var_195_arg_1=0, var_196=0, var_196_arg_0=2, var_196_arg_1=1, var_20=15, var_201=18, var_201_arg_0=18, var_202=0, var_202_arg_0=0, var_202_arg_1=18, var_203=0, var_203_arg_0=2, var_203_arg_1=0, var_208=255, var_208_arg_0=255, var_209=0, var_209_arg_0=0, var_209_arg_1=255, var_21=0, var_210=0, var_210_arg_0=2, var_210_arg_1=0, var_215=2, var_215_arg_0=2, var_216=0, var_216_arg_0=0, var_216_arg_1=2, var_217=0, var_217_arg_0=2, var_217_arg_1=0, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=2, var_224_arg_1=1, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=0, var_230_arg_0=0, var_230_arg_1=1, var_231=0, var_231_arg_0=2, var_231_arg_1=0, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=2, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=2, var_244_arg_1=0, var_249=1, var_249_arg_0=1, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=1, var_251=0, var_251_arg_0=2, var_251_arg_1=0, var_256=16, var_256_arg_0=16, var_257=0, var_257_arg_0=0, var_257_arg_1=16, var_258=0, var_258_arg_0=2, var_258_arg_1=0, var_26=0, var_263=1, var_263_arg_0=1, var_264=0, var_264_arg_0=0, var_264_arg_1=1, var_265=0, var_265_arg_0=2, var_265_arg_1=0, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=0, var_271_arg_0=0, var_271_arg_1=1, var_272=0, var_272_arg_0=2, var_272_arg_1=0, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=2, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=4, var_284_arg_0=4, var_285=0, var_285_arg_0=0, var_285_arg_1=4, var_286=0, var_286_arg_0=2, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=2, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=2, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=5, var_304_arg_0=4, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=13, var_310=47, var_310_arg_0=47, var_310_arg_1=0, var_31_arg_0=13, var_32=0, var_329=0, var_329_arg_0=0, var_329_arg_1=2, var_32_arg_0=0, var_32_arg_1=13, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=0, var_33_arg_1=0, var_33_arg_2=0, var_341=0, var_341_arg_0=0, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=2, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=4, var_376_arg_0=0, var_376_arg_1=5, var_376_arg_2=4, var_377=4, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=4, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=0, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=0, var_391=0, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=0, var_392=0, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=0, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_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_409=26, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=26, var_41=1, var_410=26, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=26, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=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_418=0, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=0, var_419=0, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=0, var_41_arg_0=1, var_42=0, var_421=0, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=0, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=0, var_425=0, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=0, var_427=0, var_427_arg_0=0, var_428=0, var_428_arg_0=0, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=1, var_43=0, var_430=255, var_430_arg_0=0, var_430_arg_1=1, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=255, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=0, var_436_arg_0=1, 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_439=1, var_439_arg_0=1, var_439_arg_1=1, var_439_arg_2=21, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=1, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=1, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=18446744073709551615, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=47, var_446_arg_0=0, var_446_arg_1=47, var_446_arg_2=47, var_447=47, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=47, var_45=10, var_46=10, var_46_arg_0=10, var_47=0, var_47_arg_0=0, var_47_arg_1=10, var_48=0, var_48_arg_0=0, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=1, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=6, var_67_arg_0=6, var_68=0, var_68_arg_0=0, var_68_arg_1=6, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=26, var_74_arg_2=0, var_76=4, var_77=0, var_77_arg_0=0, var_78=1, var_78_arg_0=0, var_78_arg_1=0, var_79=0, var_79_arg_0=1, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=0, var_83_arg_0=0, var_84=1, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=1, var_85_arg_1=0, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=0, var_90_arg_0=1, var_90_arg_1=0, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0, var_99_arg_2=0] [L147] CALL assume_abort_if_not(constr_143_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L147] RET assume_abort_if_not(constr_143_arg_0) VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=6, input_5=1, input_6=1, input_7=0, input_8=18, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=4, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=0, next_393_arg_1=0, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=26, next_414_arg_1=0, next_417_arg_1=0, next_420_arg_1=0, next_423_arg_1=0, next_426_arg_1=0, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=0, next_441_arg_1=1, next_444_arg_1=18446744073709551615, next_445_arg_1=0, next_448_arg_1=47, state_10=0, state_101=1, state_109=1, state_110=0, state_113=1, state_12=4, state_128=18446744073709551615, state_132=0, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=0, var_102_arg_0=0, var_103=9, var_103_arg_0=0, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=21, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=1, var_117_arg_0=2, var_117_arg_1=3, var_118=1, var_118_arg_0=1, var_119=22, var_119_arg_0=21, var_119_arg_1=1, var_120=1, var_120_arg_0=1, var_121=21, var_121_arg_0=22, var_121_arg_1=1, var_122=0, var_123=1, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=21, var_124=1, var_124_arg_0=1, var_125=254, var_125_arg_0=1, var_126=0, var_126_arg_0=1, var_126_arg_1=254, var_127=1, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=255, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=255, var_138=1, var_138_arg_0=1, var_139=0, var_139_arg_0=1, var_14=0, var_140=1, var_140_arg_0=1, var_140_arg_1=0, var_141=2, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=2, var_144=0, var_144_arg_0=9, var_145=0, var_145_arg_0=1, var_146=0, var_146_arg_0=0, var_146_arg_1=0, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=1, var_14_arg_0=4, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=127, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=127, var_16=0, var_160=0, var_160_arg_0=2, var_160_arg_1=1, var_161=0, var_161_arg_0=0, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=47, var_187=0, var_187_arg_0=0, var_188=0, var_188_arg_0=0, var_189=0, var_189_arg_0=2, var_189_arg_1=0, var_194=0, var_194_arg_0=0, var_195=1, var_195_arg_0=0, var_195_arg_1=0, var_196=0, var_196_arg_0=2, var_196_arg_1=1, var_20=15, var_201=18, var_201_arg_0=18, var_202=0, var_202_arg_0=0, var_202_arg_1=18, var_203=0, var_203_arg_0=2, var_203_arg_1=0, var_208=255, var_208_arg_0=255, var_209=0, var_209_arg_0=0, var_209_arg_1=255, var_21=0, var_210=0, var_210_arg_0=2, var_210_arg_1=0, var_215=2, var_215_arg_0=2, var_216=0, var_216_arg_0=0, var_216_arg_1=2, var_217=0, var_217_arg_0=2, var_217_arg_1=0, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=2, var_224_arg_1=1, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=0, var_230_arg_0=0, var_230_arg_1=1, var_231=0, var_231_arg_0=2, var_231_arg_1=0, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=2, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=2, var_244_arg_1=0, var_249=1, var_249_arg_0=1, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=1, var_251=0, var_251_arg_0=2, var_251_arg_1=0, var_256=16, var_256_arg_0=16, var_257=0, var_257_arg_0=0, var_257_arg_1=16, var_258=0, var_258_arg_0=2, var_258_arg_1=0, var_26=0, var_263=1, var_263_arg_0=1, var_264=0, var_264_arg_0=0, var_264_arg_1=1, var_265=0, var_265_arg_0=2, var_265_arg_1=0, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=0, var_271_arg_0=0, var_271_arg_1=1, var_272=0, var_272_arg_0=2, var_272_arg_1=0, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=2, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=4, var_284_arg_0=4, var_285=0, var_285_arg_0=0, var_285_arg_1=4, var_286=0, var_286_arg_0=2, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=2, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=2, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=5, var_304_arg_0=4, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=13, var_310=47, var_310_arg_0=47, var_310_arg_1=0, var_31_arg_0=13, var_32=0, var_329=0, var_329_arg_0=0, var_329_arg_1=2, var_32_arg_0=0, var_32_arg_1=13, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=0, var_33_arg_1=0, var_33_arg_2=0, var_341=0, var_341_arg_0=0, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=2, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=4, var_376_arg_0=0, var_376_arg_1=5, var_376_arg_2=4, var_377=4, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=4, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=0, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=0, var_391=0, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=0, var_392=0, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=0, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_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_409=26, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=26, var_41=1, var_410=26, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=26, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=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_418=0, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=0, var_419=0, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=0, var_41_arg_0=1, var_42=0, var_421=0, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=0, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=0, var_425=0, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=0, var_427=0, var_427_arg_0=0, var_428=0, var_428_arg_0=0, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=1, var_43=0, var_430=255, var_430_arg_0=0, var_430_arg_1=1, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=255, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=0, var_436_arg_0=1, 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_439=1, var_439_arg_0=1, var_439_arg_1=1, var_439_arg_2=21, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=1, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=1, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=18446744073709551615, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=47, var_446_arg_0=0, var_446_arg_1=47, var_446_arg_2=47, var_447=47, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=47, var_45=10, var_46=10, var_46_arg_0=10, var_47=0, var_47_arg_0=0, var_47_arg_1=10, var_48=0, var_48_arg_0=0, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=1, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=6, var_67_arg_0=6, var_68=0, var_68_arg_0=0, var_68_arg_1=6, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=26, var_74_arg_2=0, var_76=4, var_77=0, var_77_arg_0=0, var_78=1, var_78_arg_0=0, var_78_arg_1=0, var_79=0, var_79_arg_0=1, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=0, var_83_arg_0=0, var_84=1, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=1, var_85_arg_1=0, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=0, var_90_arg_0=1, var_90_arg_1=0, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0, var_99_arg_2=0] [L148] SORT_11 var_102_arg_0 = state_101; [L149] SORT_1 var_102 = var_102_arg_0 != 0; [L150] SORT_1 var_103_arg_0 = var_102; [L151] SORT_1 var_103 = ~var_103_arg_0; [L152] SORT_1 var_144_arg_0 = var_103; [L153] SORT_1 var_144 = ~var_144_arg_0; [L154] SORT_1 var_145_arg_0 = input_5; [L155] SORT_1 var_145 = ~var_145_arg_0; [L156] SORT_1 var_146_arg_0 = var_144; [L157] SORT_1 var_146_arg_1 = var_145; [L158] SORT_1 var_146 = var_146_arg_0 | var_146_arg_1; [L159] SORT_1 var_147_arg_0 = var_92; [L160] SORT_1 var_147 = ~var_147_arg_0; [L161] SORT_1 var_148_arg_0 = var_146; [L162] SORT_1 var_148_arg_1 = var_147; [L163] SORT_1 var_148 = var_148_arg_0 | var_148_arg_1; [L164] var_148 = var_148 & mask_SORT_1 [L165] SORT_1 constr_149_arg_0 = var_148; VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=6, input_5=1, input_6=1, input_7=0, input_8=18, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=4, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=0, next_393_arg_1=0, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=26, next_414_arg_1=0, next_417_arg_1=0, next_420_arg_1=0, next_423_arg_1=0, next_426_arg_1=0, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=0, next_441_arg_1=1, next_444_arg_1=18446744073709551615, next_445_arg_1=0, next_448_arg_1=47, state_10=0, state_101=1, state_109=1, state_110=0, state_113=1, state_12=4, state_128=18446744073709551615, state_132=0, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=1, var_102_arg_0=1, var_103=19, var_103_arg_0=1, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=21, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=1, var_117_arg_0=2, var_117_arg_1=3, var_118=1, var_118_arg_0=1, var_119=22, var_119_arg_0=21, var_119_arg_1=1, var_120=1, var_120_arg_0=1, var_121=21, var_121_arg_0=22, var_121_arg_1=1, var_122=0, var_123=1, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=21, var_124=1, var_124_arg_0=1, var_125=254, var_125_arg_0=1, var_126=0, var_126_arg_0=1, var_126_arg_1=254, var_127=1, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=255, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=255, var_138=1, var_138_arg_0=1, var_139=0, var_139_arg_0=1, var_14=0, var_140=1, var_140_arg_0=1, var_140_arg_1=0, var_141=2, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=2, var_144=1, var_144_arg_0=19, var_145=1, var_145_arg_0=1, var_146=1, var_146_arg_0=1, var_146_arg_1=1, var_147=255, var_147_arg_0=1, var_148=1, var_148_arg_0=1, var_148_arg_1=255, var_14_arg_0=4, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=127, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=127, var_16=0, var_160=0, var_160_arg_0=2, var_160_arg_1=1, var_161=0, var_161_arg_0=0, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=47, var_187=0, var_187_arg_0=0, var_188=0, var_188_arg_0=0, var_189=0, var_189_arg_0=2, var_189_arg_1=0, var_194=0, var_194_arg_0=0, var_195=1, var_195_arg_0=0, var_195_arg_1=0, var_196=0, var_196_arg_0=2, var_196_arg_1=1, var_20=15, var_201=18, var_201_arg_0=18, var_202=0, var_202_arg_0=0, var_202_arg_1=18, var_203=0, var_203_arg_0=2, var_203_arg_1=0, var_208=255, var_208_arg_0=255, var_209=0, var_209_arg_0=0, var_209_arg_1=255, var_21=0, var_210=0, var_210_arg_0=2, var_210_arg_1=0, var_215=2, var_215_arg_0=2, var_216=0, var_216_arg_0=0, var_216_arg_1=2, var_217=0, var_217_arg_0=2, var_217_arg_1=0, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=2, var_224_arg_1=1, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=0, var_230_arg_0=0, var_230_arg_1=1, var_231=0, var_231_arg_0=2, var_231_arg_1=0, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=2, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=2, var_244_arg_1=0, var_249=1, var_249_arg_0=1, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=1, var_251=0, var_251_arg_0=2, var_251_arg_1=0, var_256=16, var_256_arg_0=16, var_257=0, var_257_arg_0=0, var_257_arg_1=16, var_258=0, var_258_arg_0=2, var_258_arg_1=0, var_26=0, var_263=1, var_263_arg_0=1, var_264=0, var_264_arg_0=0, var_264_arg_1=1, var_265=0, var_265_arg_0=2, var_265_arg_1=0, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=0, var_271_arg_0=0, var_271_arg_1=1, var_272=0, var_272_arg_0=2, var_272_arg_1=0, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=2, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=4, var_284_arg_0=4, var_285=0, var_285_arg_0=0, var_285_arg_1=4, var_286=0, var_286_arg_0=2, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=2, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=2, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=5, var_304_arg_0=4, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=13, var_310=47, var_310_arg_0=47, var_310_arg_1=0, var_31_arg_0=13, var_32=0, var_329=0, var_329_arg_0=0, var_329_arg_1=2, var_32_arg_0=0, var_32_arg_1=13, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=0, var_33_arg_1=0, var_33_arg_2=0, var_341=0, var_341_arg_0=0, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=2, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=4, var_376_arg_0=0, var_376_arg_1=5, var_376_arg_2=4, var_377=4, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=4, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=0, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=0, var_391=0, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=0, var_392=0, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=0, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_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_409=26, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=26, var_41=1, var_410=26, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=26, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=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_418=0, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=0, var_419=0, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=0, var_41_arg_0=1, var_42=0, var_421=0, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=0, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=0, var_425=0, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=0, var_427=0, var_427_arg_0=0, var_428=0, var_428_arg_0=0, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=1, var_43=0, var_430=255, var_430_arg_0=0, var_430_arg_1=1, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=255, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=0, var_436_arg_0=1, 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_439=1, var_439_arg_0=1, var_439_arg_1=1, var_439_arg_2=21, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=1, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=1, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=18446744073709551615, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=47, var_446_arg_0=0, var_446_arg_1=47, var_446_arg_2=47, var_447=47, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=47, var_45=10, var_46=10, var_46_arg_0=10, var_47=0, var_47_arg_0=0, var_47_arg_1=10, var_48=0, var_48_arg_0=0, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=1, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=6, var_67_arg_0=6, var_68=0, var_68_arg_0=0, var_68_arg_1=6, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=26, var_74_arg_2=0, var_76=4, var_77=0, var_77_arg_0=0, var_78=1, var_78_arg_0=0, var_78_arg_1=0, var_79=0, var_79_arg_0=1, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=0, var_83_arg_0=0, var_84=1, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=1, var_85_arg_1=0, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=0, var_90_arg_0=1, var_90_arg_1=0, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0, var_99_arg_2=0] [L166] CALL assume_abort_if_not(constr_149_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L166] RET assume_abort_if_not(constr_149_arg_0) VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=6, input_5=1, input_6=1, input_7=0, input_8=18, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=18446744073709551615, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=9223372036854775808, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=4, next_381_arg_1=0, next_384_arg_1=0, next_387_arg_1=0, next_390_arg_1=0, next_393_arg_1=0, next_396_arg_1=0, next_399_arg_1=0, next_402_arg_1=0, next_405_arg_1=0, next_408_arg_1=0, next_411_arg_1=26, next_414_arg_1=0, next_417_arg_1=0, next_420_arg_1=0, next_423_arg_1=0, next_426_arg_1=0, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=0, next_441_arg_1=1, next_444_arg_1=18446744073709551615, next_445_arg_1=0, next_448_arg_1=47, state_10=0, state_101=1, state_109=1, state_110=0, state_113=1, state_12=4, state_128=18446744073709551615, state_132=0, state_18=0, state_185=47, state_24=0, state_29=0, state_34=0, state_39=0, state_44=0, state_49=0, state_54=0, state_59=0, state_65=0, state_70=26, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=1, var_102_arg_0=1, var_103=19, var_103_arg_0=1, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_111=1, var_111_arg_0=0, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=21, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=3, var_116_arg_0=1, var_117=1, var_117_arg_0=2, var_117_arg_1=3, var_118=1, var_118_arg_0=1, var_119=22, var_119_arg_0=21, var_119_arg_1=1, var_120=1, var_120_arg_0=1, var_121=21, var_121_arg_0=22, var_121_arg_1=1, var_122=0, var_123=1, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=21, var_124=1, var_124_arg_0=1, var_125=254, var_125_arg_0=1, var_126=0, var_126_arg_0=1, var_126_arg_1=254, var_127=1, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=1, var_130_arg_0=1, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=255, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=255, var_138=1, var_138_arg_0=1, var_139=0, var_139_arg_0=1, var_14=0, var_140=1, var_140_arg_0=1, var_140_arg_1=0, var_141=2, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=2, var_144=1, var_144_arg_0=19, var_145=1, var_145_arg_0=1, var_146=1, var_146_arg_0=1, var_146_arg_1=1, var_147=255, var_147_arg_0=1, var_148=1, var_148_arg_0=1, var_148_arg_1=255, var_14_arg_0=4, var_15=16, var_151=1, var_151_arg_0=1, var_151_arg_1=1, var_151_arg_2=1, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=127, var_154_arg_0=1, var_155=0, var_155_arg_0=0, var_155_arg_1=127, var_16=0, var_160=0, var_160_arg_0=2, var_160_arg_1=1, var_161=0, var_161_arg_0=0, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=0, var_186_arg_0=47, var_187=0, var_187_arg_0=0, var_188=0, var_188_arg_0=0, var_189=0, var_189_arg_0=2, var_189_arg_1=0, var_194=0, var_194_arg_0=0, var_195=1, var_195_arg_0=0, var_195_arg_1=0, var_196=0, var_196_arg_0=2, var_196_arg_1=1, var_20=15, var_201=18, var_201_arg_0=18, var_202=0, var_202_arg_0=0, var_202_arg_1=18, var_203=0, var_203_arg_0=2, var_203_arg_1=0, var_208=255, var_208_arg_0=255, var_209=0, var_209_arg_0=0, var_209_arg_1=255, var_21=0, var_210=0, var_210_arg_0=2, var_210_arg_1=0, var_215=2, var_215_arg_0=2, var_216=0, var_216_arg_0=0, var_216_arg_1=2, var_217=0, var_217_arg_0=2, var_217_arg_1=0, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=1, var_223_arg_0=0, var_223_arg_1=0, var_224=0, var_224_arg_0=2, var_224_arg_1=1, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=0, var_230_arg_0=0, var_230_arg_1=1, var_231=0, var_231_arg_0=2, var_231_arg_1=0, var_236=0, var_236_arg_0=0, var_236_arg_1=16, var_237=0, var_237_arg_0=2, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=0, var_243_arg_1=1, var_244=0, var_244_arg_0=2, var_244_arg_1=0, var_249=1, var_249_arg_0=1, var_25=14, var_250=0, var_250_arg_0=0, var_250_arg_1=1, var_251=0, var_251_arg_0=2, var_251_arg_1=0, var_256=16, var_256_arg_0=16, var_257=0, var_257_arg_0=0, var_257_arg_1=16, var_258=0, var_258_arg_0=2, var_258_arg_1=0, var_26=0, var_263=1, var_263_arg_0=1, var_264=0, var_264_arg_0=0, var_264_arg_1=1, var_265=0, var_265_arg_0=2, var_265_arg_1=0, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=0, var_271_arg_0=0, var_271_arg_1=1, var_272=0, var_272_arg_0=2, var_272_arg_1=0, var_277=0, var_277_arg_0=0, var_278=1, var_278_arg_0=0, var_278_arg_1=0, var_279=0, var_279_arg_0=2, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=4, var_284_arg_0=4, var_285=0, var_285_arg_0=0, var_285_arg_1=4, var_286=0, var_286_arg_0=2, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=255, var_291_arg_0=255, var_292=0, var_292_arg_0=0, var_292_arg_1=255, var_293=0, var_293_arg_0=2, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=1, var_299_arg_0=0, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=2, var_300_arg_1=1, var_303=1, var_303_arg_0=1, var_304=5, var_304_arg_0=4, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=13, var_310=47, var_310_arg_0=47, var_310_arg_1=0, var_31_arg_0=13, var_32=0, var_329=0, var_329_arg_0=0, var_329_arg_1=2, var_32_arg_0=0, var_32_arg_1=13, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=0, var_33_arg_1=0, var_33_arg_2=0, var_341=0, var_341_arg_0=0, var_341_arg_1=0, var_35=12, var_353=1, var_353_arg_0=2, var_353_arg_1=1, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=0, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=4, var_376_arg_0=0, var_376_arg_1=5, var_376_arg_2=4, var_377=4, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=4, var_379=0, var_379_arg_0=0, var_379_arg_1=0, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=0, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=0, var_382=0, var_382_arg_0=0, var_382_arg_1=0, var_382_arg_2=0, var_383=0, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=0, var_385=0, var_385_arg_0=0, var_385_arg_1=0, var_385_arg_2=0, var_386=0, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=0, var_388=0, var_388_arg_0=0, var_388_arg_1=0, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=0, var_391=0, var_391_arg_0=0, var_391_arg_1=0, var_391_arg_2=0, var_392=0, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=0, var_394=0, var_394_arg_0=0, var_394_arg_1=0, var_394_arg_2=0, var_395=0, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=0, var_397=0, var_397_arg_0=0, var_397_arg_1=0, var_397_arg_2=0, var_398=0, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=0, var_40=11, var_400=0, var_400_arg_0=0, var_400_arg_1=0, var_400_arg_2=0, var_401=0, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=0, var_403=0, var_403_arg_0=0, var_403_arg_1=0, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_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_409=26, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=26, var_41=1, var_410=26, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=26, var_412=0, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=0, var_413=0, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=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_418=0, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=0, var_419=0, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=0, var_41_arg_0=1, var_42=0, var_421=0, var_421_arg_0=0, var_421_arg_1=0, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=0, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=0, var_425=0, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=0, var_427=0, var_427_arg_0=0, var_428=0, var_428_arg_0=0, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=1, var_43=0, var_430=255, var_430_arg_0=0, var_430_arg_1=1, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=255, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=0, var_436_arg_0=1, 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_439=1, var_439_arg_0=1, var_439_arg_1=1, var_439_arg_2=21, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=1, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=1, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=18446744073709551615, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=47, var_446_arg_0=0, var_446_arg_1=47, var_446_arg_2=47, var_447=47, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=47, var_45=10, var_46=10, var_46_arg_0=10, var_47=0, var_47_arg_0=0, var_47_arg_1=10, var_48=0, var_48_arg_0=0, var_48_arg_1=0, var_48_arg_2=0, var_50=9, var_51=0, var_51_arg_0=0, var_52=1, var_52_arg_0=0, var_52_arg_1=0, var_53=0, var_53_arg_0=1, var_53_arg_1=0, var_53_arg_2=0, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=1, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=6, var_67_arg_0=6, var_68=0, var_68_arg_0=0, var_68_arg_1=6, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=26, var_74_arg_2=0, var_76=4, var_77=0, var_77_arg_0=0, var_78=1, var_78_arg_0=0, var_78_arg_1=0, var_79=0, var_79_arg_0=1, var_79_arg_1=0, var_79_arg_2=0, var_82=3, var_83=0, var_83_arg_0=0, var_84=1, var_84_arg_0=0, var_84_arg_1=0, var_85=0, var_85_arg_0=1, var_85_arg_1=0, var_85_arg_2=0, var_87=2, var_88=0, var_88_arg_0=0, var_89=1, var_89_arg_0=0, var_89_arg_1=0, var_90=0, var_90_arg_0=1, var_90_arg_1=0, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0, var_99_arg_2=0] [L168] SORT_1 var_153_arg_0 = state_132; [L169] SORT_1 var_153_arg_1 = var_152; [L170] SORT_1 var_153_arg_2 = var_92; [L171] EXPR var_153_arg_0 ? var_153_arg_1 : var_153_arg_2 [L171] SORT_1 var_153 = var_153_arg_0 ? var_153_arg_1 : var_153_arg_2; [L172] SORT_1 var_111_arg_0 = state_110; [L173] SORT_1 var_111 = ~var_111_arg_0; [L174] SORT_1 var_112_arg_0 = state_109; [L175] SORT_1 var_112_arg_1 = var_111; [L176] SORT_1 var_112 = var_112_arg_0 & var_112_arg_1; [L177] SORT_11 var_114_arg_0 = state_113; [L178] SORT_1 var_114 = var_114_arg_0 != 0; [L179] SORT_1 var_115_arg_0 = var_112; [L180] SORT_1 var_115_arg_1 = var_114; [L181] SORT_1 var_115 = var_115_arg_0 & var_115_arg_1; [L182] SORT_1 var_116_arg_0 = state_109; [L183] SORT_1 var_116 = ~var_116_arg_0; [L184] SORT_1 var_117_arg_0 = input_6; [L185] SORT_1 var_117_arg_1 = var_116; [L186] SORT_1 var_117 = var_117_arg_0 & var_117_arg_1; [L187] SORT_1 var_118_arg_0 = var_117; [L188] var_118_arg_0 = var_118_arg_0 & mask_SORT_1 [L189] SORT_11 var_118 = var_118_arg_0; [L190] SORT_11 var_119_arg_0 = state_113; [L191] SORT_11 var_119_arg_1 = var_118; [L192] SORT_11 var_119 = var_119_arg_0 + var_119_arg_1; [L193] SORT_1 var_120_arg_0 = input_5; [L194] var_120_arg_0 = var_120_arg_0 & mask_SORT_1 [L195] SORT_11 var_120 = var_120_arg_0; [L196] SORT_11 var_121_arg_0 = var_119; [L197] SORT_11 var_121_arg_1 = var_120; [L198] SORT_11 var_121 = var_121_arg_0 - var_121_arg_1; [L199] SORT_1 var_123_arg_0 = input_7; [L200] SORT_11 var_123_arg_1 = var_122; [L201] SORT_11 var_123_arg_2 = var_121; [L202] EXPR var_123_arg_0 ? var_123_arg_1 : var_123_arg_2 [L202] SORT_11 var_123 = var_123_arg_0 ? var_123_arg_1 : var_123_arg_2; [L203] var_123 = var_123 & mask_SORT_11 [L204] SORT_11 var_124_arg_0 = var_123; [L205] SORT_1 var_124 = var_124_arg_0 != 0; [L206] SORT_1 var_125_arg_0 = var_124; [L207] SORT_1 var_125 = ~var_125_arg_0; [L208] SORT_1 var_126_arg_0 = var_115; [L209] SORT_1 var_126_arg_1 = var_125; [L210] SORT_1 var_126 = var_126_arg_0 & var_126_arg_1; [L211] SORT_1 var_127_arg_0 = var_126; [L212] SORT_1 var_127 = ~var_127_arg_0; [L213] SORT_11 var_14_arg_0 = state_12; [L214] SORT_13 var_14 = var_14_arg_0 >> 0; [L215] var_14 = var_14 & mask_SORT_13 [L216] SORT_13 var_97_arg_0 = var_14; [L217] SORT_1 var_97 = var_97_arg_0 != 0; [L218] SORT_1 var_98_arg_0 = var_97; [L219] SORT_1 var_98 = ~var_98_arg_0; [L220] var_98 = var_98 & mask_SORT_1 [L221] SORT_1 var_93_arg_0 = var_92; [L222] var_93_arg_0 = var_93_arg_0 & mask_SORT_1 [L223] SORT_13 var_93 = var_93_arg_0; [L224] SORT_13 var_94_arg_0 = var_14; [L225] SORT_13 var_94_arg_1 = var_93; [L226] SORT_1 var_94 = var_94_arg_0 == var_94_arg_1; [L227] SORT_81 var_88_arg_0 = var_87; [L228] var_88_arg_0 = var_88_arg_0 & mask_SORT_81 [L229] SORT_13 var_88 = var_88_arg_0; [L230] SORT_13 var_89_arg_0 = var_14; [L231] SORT_13 var_89_arg_1 = var_88; [L232] SORT_1 var_89 = var_89_arg_0 == var_89_arg_1; [L233] SORT_81 var_83_arg_0 = var_82; [L234] var_83_arg_0 = var_83_arg_0 & mask_SORT_81 [L235] SORT_13 var_83 = var_83_arg_0; [L236] SORT_13 var_84_arg_0 = var_14; [L237] SORT_13 var_84_arg_1 = var_83; [L238] SORT_1 var_84 = var_84_arg_0 == var_84_arg_1; [L239] SORT_60 var_77_arg_0 = var_76; [L240] var_77_arg_0 = var_77_arg_0 & mask_SORT_60 [L241] SORT_13 var_77 = var_77_arg_0; [L242] SORT_13 var_78_arg_0 = var_14; [L243] SORT_13 var_78_arg_1 = var_77; [L244] SORT_1 var_78 = var_78_arg_0 == var_78_arg_1; [L245] SORT_60 var_72_arg_0 = var_71; [L246] var_72_arg_0 = var_72_arg_0 & mask_SORT_60 [L247] SORT_13 var_72 = var_72_arg_0; [L248] SORT_13 var_73_arg_0 = var_14; [L249] SORT_13 var_73_arg_1 = var_72; [L250] SORT_1 var_73 = var_73_arg_0 == var_73_arg_1; [L251] SORT_60 var_67_arg_0 = var_66; [L252] var_67_arg_0 = var_67_arg_0 & mask_SORT_60 [L253] SORT_13 var_67 = var_67_arg_0; [L254] SORT_13 var_68_arg_0 = var_14; [L255] SORT_13 var_68_arg_1 = var_67; [L256] SORT_1 var_68 = var_68_arg_0 == var_68_arg_1; [L257] SORT_60 var_62_arg_0 = var_61; [L258] var_62_arg_0 = var_62_arg_0 & mask_SORT_60 [L259] SORT_13 var_62 = var_62_arg_0; [L260] SORT_13 var_63_arg_0 = var_14; [L261] SORT_13 var_63_arg_1 = var_62; [L262] SORT_1 var_63 = var_63_arg_0 == var_63_arg_1; [L263] SORT_19 var_56_arg_0 = var_55; [L264] var_56_arg_0 = var_56_arg_0 & mask_SORT_19 [L265] SORT_13 var_56 = var_56_arg_0; [L266] SORT_13 var_57_arg_0 = var_14; [L267] SORT_13 var_57_arg_1 = var_56; [L268] SORT_1 var_57 = var_57_arg_0 == var_57_arg_1; [L269] SORT_19 var_51_arg_0 = var_50; [L270] var_51_arg_0 = var_51_arg_0 & mask_SORT_19 [L271] SORT_13 var_51 = var_51_arg_0; [L272] SORT_13 var_52_arg_0 = var_14; [L273] SORT_13 var_52_arg_1 = var_51; [L274] SORT_1 var_52 = var_52_arg_0 == var_52_arg_1; [L275] SORT_19 var_46_arg_0 = var_45; [L276] var_46_arg_0 = var_46_arg_0 & mask_SORT_19 [L277] SORT_13 var_46 = var_46_arg_0; [L278] SORT_13 var_47_arg_0 = var_14; [L279] SORT_13 var_47_arg_1 = var_46; [L280] SORT_1 var_47 = var_47_arg_0 == var_47_arg_1; [L281] SORT_19 var_41_arg_0 = var_40; [L282] var_41_arg_0 = var_41_arg_0 & mask_SORT_19 [L283] SORT_13 var_41 = var_41_arg_0; [L284] SORT_13 var_42_arg_0 = var_14; [L285] SORT_13 var_42_arg_1 = var_41; [L286] SORT_1 var_42 = var_42_arg_0 == var_42_arg_1; [L287] SORT_19 var_36_arg_0 = var_35; [L288] var_36_arg_0 = var_36_arg_0 & mask_SORT_19 [L289] SORT_13 var_36 = var_36_arg_0; [L290] SORT_13 var_37_arg_0 = var_14; [L291] SORT_13 var_37_arg_1 = var_36; [L292] SORT_1 var_37 = var_37_arg_0 == var_37_arg_1; [L293] SORT_19 var_31_arg_0 = var_30; [L294] var_31_arg_0 = var_31_arg_0 & mask_SORT_19 [L295] SORT_13 var_31 = var_31_arg_0; [L296] SORT_13 var_32_arg_0 = var_14; [L297] SORT_13 var_32_arg_1 = var_31; [L298] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L299] SORT_19 var_26_arg_0 = var_25; [L300] var_26_arg_0 = var_26_arg_0 & mask_SORT_19 [L301] SORT_13 var_26 = var_26_arg_0; [L302] SORT_13 var_27_arg_0 = var_14; [L303] SORT_13 var_27_arg_1 = var_26; [L304] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L305] SORT_19 var_21_arg_0 = var_20; [L306] var_21_arg_0 = var_21_arg_0 & mask_SORT_19 [L307] SORT_13 var_21 = var_21_arg_0; [L308] SORT_13 var_22_arg_0 = var_14; [L309] SORT_13 var_22_arg_1 = var_21; [L310] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L311] SORT_13 var_16_arg_0 = var_14; [L312] SORT_13 var_16_arg_1 = var_15; [L313] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L314] SORT_1 var_17_arg_0 = var_16; [L315] SORT_3 var_17_arg_1 = state_10; [L316] SORT_3 var_17_arg_2 = input_9; [L317] EXPR var_17_arg_0 ? var_17_arg_1 : var_17_arg_2 [L317] SORT_3 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L318] SORT_1 var_23_arg_0 = var_22; [L319] SORT_3 var_23_arg_1 = state_18; [L320] SORT_3 var_23_arg_2 = var_17; [L321] EXPR var_23_arg_0 ? var_23_arg_1 : var_23_arg_2 [L321] SORT_3 var_23 = var_23_arg_0 ? var_23_arg_1 : var_23_arg_2; [L322] SORT_1 var_28_arg_0 = var_27; [L323] SORT_3 var_28_arg_1 = state_24; [L324] SORT_3 var_28_arg_2 = var_23; [L325] EXPR var_28_arg_0 ? var_28_arg_1 : var_28_arg_2 [L325] SORT_3 var_28 = var_28_arg_0 ? var_28_arg_1 : var_28_arg_2; [L326] SORT_1 var_33_arg_0 = var_32; [L327] SORT_3 var_33_arg_1 = state_29; [L328] SORT_3 var_33_arg_2 = var_28; [L329] EXPR var_33_arg_0 ? var_33_arg_1 : var_33_arg_2 [L329] SORT_3 var_33 = var_33_arg_0 ? var_33_arg_1 : var_33_arg_2; [L330] SORT_1 var_38_arg_0 = var_37; [L331] SORT_3 var_38_arg_1 = state_34; [L332] SORT_3 var_38_arg_2 = var_33; [L333] EXPR var_38_arg_0 ? var_38_arg_1 : var_38_arg_2 [L333] SORT_3 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L334] SORT_1 var_43_arg_0 = var_42; [L335] SORT_3 var_43_arg_1 = state_39; [L336] SORT_3 var_43_arg_2 = var_38; [L337] EXPR var_43_arg_0 ? var_43_arg_1 : var_43_arg_2 [L337] SORT_3 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L338] SORT_1 var_48_arg_0 = var_47; [L339] SORT_3 var_48_arg_1 = state_44; [L340] SORT_3 var_48_arg_2 = var_43; [L341] EXPR var_48_arg_0 ? var_48_arg_1 : var_48_arg_2 [L341] SORT_3 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L342] SORT_1 var_53_arg_0 = var_52; [L343] SORT_3 var_53_arg_1 = state_49; [L344] SORT_3 var_53_arg_2 = var_48; [L345] EXPR var_53_arg_0 ? var_53_arg_1 : var_53_arg_2 [L345] SORT_3 var_53 = var_53_arg_0 ? var_53_arg_1 : var_53_arg_2; [L346] SORT_1 var_58_arg_0 = var_57; [L347] SORT_3 var_58_arg_1 = state_54; [L348] SORT_3 var_58_arg_2 = var_53; [L349] EXPR var_58_arg_0 ? var_58_arg_1 : var_58_arg_2 [L349] SORT_3 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L350] SORT_1 var_64_arg_0 = var_63; [L351] SORT_3 var_64_arg_1 = state_59; [L352] SORT_3 var_64_arg_2 = var_58; [L353] EXPR var_64_arg_0 ? var_64_arg_1 : var_64_arg_2 [L353] SORT_3 var_64 = var_64_arg_0 ? var_64_arg_1 : var_64_arg_2; [L354] SORT_1 var_69_arg_0 = var_68; [L355] SORT_3 var_69_arg_1 = state_65; [L356] SORT_3 var_69_arg_2 = var_64; [L357] EXPR var_69_arg_0 ? var_69_arg_1 : var_69_arg_2 [L357] SORT_3 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L358] SORT_1 var_74_arg_0 = var_73; [L359] SORT_3 var_74_arg_1 = state_70; [L360] SORT_3 var_74_arg_2 = var_69; [L361] EXPR var_74_arg_0 ? var_74_arg_1 : var_74_arg_2 [L361] SORT_3 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L362] SORT_1 var_79_arg_0 = var_78; [L363] SORT_3 var_79_arg_1 = state_75; [L364] SORT_3 var_79_arg_2 = var_74; [L365] EXPR var_79_arg_0 ? var_79_arg_1 : var_79_arg_2 [L365] SORT_3 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L366] SORT_1 var_85_arg_0 = var_84; [L367] SORT_3 var_85_arg_1 = state_80; [L368] SORT_3 var_85_arg_2 = var_79; [L369] EXPR var_85_arg_0 ? var_85_arg_1 : var_85_arg_2 [L369] SORT_3 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L370] SORT_1 var_90_arg_0 = var_89; [L371] SORT_3 var_90_arg_1 = state_86; [L372] SORT_3 var_90_arg_2 = var_85; [L373] EXPR var_90_arg_0 ? var_90_arg_1 : var_90_arg_2 [L373] SORT_3 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L374] SORT_1 var_95_arg_0 = var_94; [L375] SORT_3 var_95_arg_1 = state_91; [L376] SORT_3 var_95_arg_2 = var_90; [L377] EXPR var_95_arg_0 ? var_95_arg_1 : var_95_arg_2 [L377] SORT_3 var_95 = var_95_arg_0 ? var_95_arg_1 : var_95_arg_2; [L378] SORT_1 var_99_arg_0 = var_98; [L379] SORT_3 var_99_arg_1 = state_96; [L380] SORT_3 var_99_arg_2 = var_95; [L381] EXPR var_99_arg_0 ? var_99_arg_1 : var_99_arg_2 [L381] SORT_3 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L382] var_99 = var_99 & mask_SORT_3 [L383] SORT_3 var_129_arg_0 = state_128; [L384] SORT_3 var_129_arg_1 = var_99; [L385] SORT_1 var_129 = var_129_arg_0 == var_129_arg_1; [L386] SORT_1 var_130_arg_0 = var_127; [L387] SORT_1 var_130_arg_1 = var_129; [L388] SORT_1 var_130 = var_130_arg_0 | var_130_arg_1; [L389] SORT_1 var_151_arg_0 = state_132; [L390] SORT_1 var_151_arg_1 = input_150; [L391] SORT_1 var_151_arg_2 = var_130; [L392] EXPR var_151_arg_0 ? var_151_arg_1 : var_151_arg_2 [L392] SORT_1 var_151 = var_151_arg_0 ? var_151_arg_1 : var_151_arg_2; [L393] SORT_1 var_154_arg_0 = var_151; [L394] SORT_1 var_154 = ~var_154_arg_0; [L395] SORT_1 var_155_arg_0 = var_153; [L396] SORT_1 var_155_arg_1 = var_154; [L397] SORT_1 var_155 = var_155_arg_0 & var_155_arg_1; [L398] var_155 = var_155 & mask_SORT_1 [L399] SORT_1 bad_156_arg_0 = var_155; [L400] CALL __VERIFIER_assert(!(bad_156_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 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.5s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 17 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 20.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 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 01:54:28,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/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 9e4bb58ce6081c5c3bdbf18ab57dfed9e7c7ba7bbaedd0780c65b0306c06c8c4 --- 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 01:54:31,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:54:31,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:54:31,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:54:31,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:54:31,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:54:31,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:54:31,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:54:31,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:54:31,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:54:31,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:54:31,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:54:31,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:54:31,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:54:31,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:54:31,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:54:31,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:54:31,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:54:31,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:54:31,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:54:31,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:54:31,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:54:31,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:54:31,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:54:31,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:54:31,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:54:31,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:54:31,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:54:31,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:54:31,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:54:31,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:54:31,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:54:31,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:54:31,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:54:31,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:54:31,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:54:31,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:54:31,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:54:31,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:54:31,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:54:31,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:54:31,436 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 01:54:31,475 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:54:31,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:54:31,477 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:54:31,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:54:31,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:54:31,478 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:54:31,478 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:54:31,479 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:54:31,479 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:54:31,479 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:54:31,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:54:31,481 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:54:31,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:54:31,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:54:31,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:54:31,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:54:31,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:54:31,483 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 01:54:31,484 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 01:54:31,484 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 01:54:31,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:54:31,484 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:54:31,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:54:31,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:54:31,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 01:54:31,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:54:31,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:54:31,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:54:31,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:54:31,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:54:31,486 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 01:54:31,487 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 01:54:31,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:54:31,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:54:31,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 01:54:31,488 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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4bb58ce6081c5c3bdbf18ab57dfed9e7c7ba7bbaedd0780c65b0306c06c8c4 [2022-11-03 01:54:31,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:54:31,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:54:31,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:54:31,955 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:54:31,955 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:54:31,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c [2022-11-03 01:54:32,020 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/data/790165cc7/5936b64d3950454f81af6e090de067be/FLAGf3f7e185a [2022-11-03 01:54:32,692 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:54:32,692 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c [2022-11-03 01:54:32,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/data/790165cc7/5936b64d3950454f81af6e090de067be/FLAGf3f7e185a [2022-11-03 01:54:32,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/data/790165cc7/5936b64d3950454f81af6e090de067be [2022-11-03 01:54:32,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:54:32,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:54:32,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:54:32,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:54:32,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:54:32,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:54:32" (1/1) ... [2022-11-03 01:54:32,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b37c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:32, skipping insertion in model container [2022-11-03 01:54:32,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:54:32" (1/1) ... [2022-11-03 01:54:32,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:54:33,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:54:33,218 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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c[1116,1129] [2022-11-03 01:54:33,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:54:33,454 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:54:33,466 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_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c[1116,1129] [2022-11-03 01:54:33,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:54:33,636 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:54:33,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33 WrapperNode [2022-11-03 01:54:33,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:54:33,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:54:33,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:54:33,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:54:33,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (1/1) ... [2022-11-03 01:54:33,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (1/1) ... [2022-11-03 01:54:33,777 INFO L138 Inliner]: procedures = 11, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1142 [2022-11-03 01:54:33,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:54:33,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:54:33,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:54:33,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:54:33,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (1/1) ... [2022-11-03 01:54:33,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (1/1) ... [2022-11-03 01:54:33,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (1/1) ... [2022-11-03 01:54:33,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (1/1) ... [2022-11-03 01:54:33,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (1/1) ... [2022-11-03 01:54:33,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (1/1) ... [2022-11-03 01:54:33,889 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (1/1) ... [2022-11-03 01:54:33,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (1/1) ... [2022-11-03 01:54:33,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:54:33,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:54:33,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:54:33,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:54:33,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (1/1) ... [2022-11-03 01:54:33,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:54:33,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:54:33,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:54:33,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:54:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:54:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:54:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:54:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:54:34,319 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:54:34,326 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:54:35,295 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:54:35,306 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:54:35,307 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:54:35,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:54:35 BoogieIcfgContainer [2022-11-03 01:54:35,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:54:35,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:54:35,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:54:35,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:54:35,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:54:32" (1/3) ... [2022-11-03 01:54:35,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1a83c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:54:35, skipping insertion in model container [2022-11-03 01:54:35,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:33" (2/3) ... [2022-11-03 01:54:35,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1a83c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:54:35, skipping insertion in model container [2022-11-03 01:54:35,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:54:35" (3/3) ... [2022-11-03 01:54:35,319 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w64_d16_e0.c [2022-11-03 01:54:35,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:54:35,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:54:35,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:54:35,404 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;@15c60634, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:54:35,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:54:35,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 149 states have (on average 1.483221476510067) internal successors, (221), 150 states have internal predecessors, (221), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:35,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:35,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:35,422 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:35,423 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:35,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:35,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1063607004, now seen corresponding path program 1 times [2022-11-03 01:54:35,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:35,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487589957] [2022-11-03 01:54:35,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:35,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:35,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:35,454 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:35,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 01:54:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:35,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 01:54:35,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 01:54:36,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:36,012 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:36,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487589957] [2022-11-03 01:54:36,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487589957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:36,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:36,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:54:36,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169019429] [2022-11-03 01:54:36,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:36,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:54:36,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:36,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:54:36,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:54:36,066 INFO L87 Difference]: Start difference. First operand has 155 states, 149 states have (on average 1.483221476510067) internal successors, (221), 150 states have internal predecessors, (221), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:54:36,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:36,128 INFO L93 Difference]: Finished difference Result 304 states and 452 transitions. [2022-11-03 01:54:36,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:54:36,131 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2022-11-03 01:54:36,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:36,142 INFO L225 Difference]: With dead ends: 304 [2022-11-03 01:54:36,143 INFO L226 Difference]: Without dead ends: 151 [2022-11-03 01:54:36,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:54:36,152 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:36,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:54:36,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-03 01:54:36,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-11-03 01:54:36,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.4657534246575343) internal successors, (214), 146 states have internal predecessors, (214), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:36,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 220 transitions. [2022-11-03 01:54:36,226 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 220 transitions. Word has length 63 [2022-11-03 01:54:36,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:36,227 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 220 transitions. [2022-11-03 01:54:36,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:54:36,227 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 220 transitions. [2022-11-03 01:54:36,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:36,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:36,234 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:36,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-03 01:54:36,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:36,450 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:36,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:36,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1458232482, now seen corresponding path program 1 times [2022-11-03 01:54:36,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:36,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283698184] [2022-11-03 01:54:36,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:36,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:36,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:36,453 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:36,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 01:54:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:36,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:36,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:37,270 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:37,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:37,271 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:37,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283698184] [2022-11-03 01:54:37,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283698184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:37,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:37,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:37,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262424870] [2022-11-03 01:54:37,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:37,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:37,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:37,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:37,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:37,282 INFO L87 Difference]: Start difference. First operand 151 states and 220 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:37,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:37,717 INFO L93 Difference]: Finished difference Result 600 states and 881 transitions. [2022-11-03 01:54:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:37,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:37,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:37,721 INFO L225 Difference]: With dead ends: 600 [2022-11-03 01:54:37,721 INFO L226 Difference]: Without dead ends: 451 [2022-11-03 01:54:37,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:37,723 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1411 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:37,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 914 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:54:37,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-11-03 01:54:37,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 153. [2022-11-03 01:54:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.4594594594594594) internal successors, (216), 148 states have internal predecessors, (216), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 222 transitions. [2022-11-03 01:54:37,744 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 222 transitions. Word has length 63 [2022-11-03 01:54:37,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:37,744 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 222 transitions. [2022-11-03 01:54:37,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 222 transitions. [2022-11-03 01:54:37,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:37,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:37,746 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:37,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:37,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:37,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:37,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:37,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1852599268, now seen corresponding path program 1 times [2022-11-03 01:54:37,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:37,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607686422] [2022-11-03 01:54:37,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:37,963 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:37,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:37,964 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:37,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 01:54:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:38,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:38,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:38,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:38,620 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:38,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607686422] [2022-11-03 01:54:38,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607686422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:38,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:38,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:38,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324503930] [2022-11-03 01:54:38,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:38,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:38,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:38,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:38,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:38,629 INFO L87 Difference]: Start difference. First operand 153 states and 222 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:39,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:39,011 INFO L93 Difference]: Finished difference Result 606 states and 887 transitions. [2022-11-03 01:54:39,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:39,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:39,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:39,014 INFO L225 Difference]: With dead ends: 606 [2022-11-03 01:54:39,014 INFO L226 Difference]: Without dead ends: 455 [2022-11-03 01:54:39,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:39,017 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1411 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:39,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 901 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:54:39,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-11-03 01:54:39,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 157. [2022-11-03 01:54:39,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.4539473684210527) internal successors, (221), 152 states have internal predecessors, (221), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:39,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 227 transitions. [2022-11-03 01:54:39,032 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 227 transitions. Word has length 63 [2022-11-03 01:54:39,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:39,032 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 227 transitions. [2022-11-03 01:54:39,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 227 transitions. [2022-11-03 01:54:39,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:39,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:39,041 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:39,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:39,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:39,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:39,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:39,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1577839654, now seen corresponding path program 1 times [2022-11-03 01:54:39,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:39,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889066792] [2022-11-03 01:54:39,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:39,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:39,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:39,261 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:39,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 01:54:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:39,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:39,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:39,846 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:39,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:39,846 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:39,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889066792] [2022-11-03 01:54:39,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889066792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:39,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:39,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:39,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183499672] [2022-11-03 01:54:39,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:39,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:39,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:39,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:39,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:39,849 INFO L87 Difference]: Start difference. First operand 157 states and 227 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:40,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:40,229 INFO L93 Difference]: Finished difference Result 612 states and 893 transitions. [2022-11-03 01:54:40,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:40,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:40,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:40,231 INFO L225 Difference]: With dead ends: 612 [2022-11-03 01:54:40,232 INFO L226 Difference]: Without dead ends: 457 [2022-11-03 01:54:40,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:40,233 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1414 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:40,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 910 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:54:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-11-03 01:54:40,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 159. [2022-11-03 01:54:40,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 154 states have (on average 1.448051948051948) internal successors, (223), 154 states have internal predecessors, (223), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:40,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 229 transitions. [2022-11-03 01:54:40,247 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 229 transitions. Word has length 63 [2022-11-03 01:54:40,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:40,247 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 229 transitions. [2022-11-03 01:54:40,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:40,248 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 229 transitions. [2022-11-03 01:54:40,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:40,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:40,249 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:40,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:40,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:40,465 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:40,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:40,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1555207400, now seen corresponding path program 1 times [2022-11-03 01:54:40,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:40,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766279117] [2022-11-03 01:54:40,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:40,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:40,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:40,468 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:40,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 01:54:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:40,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:40,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:40,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:40,999 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:40,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766279117] [2022-11-03 01:54:40,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766279117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:41,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:41,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:41,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355580856] [2022-11-03 01:54:41,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:41,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:41,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:41,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:41,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:41,008 INFO L87 Difference]: Start difference. First operand 159 states and 229 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:41,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:41,374 INFO L93 Difference]: Finished difference Result 616 states and 896 transitions. [2022-11-03 01:54:41,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:41,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:41,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:41,377 INFO L225 Difference]: With dead ends: 616 [2022-11-03 01:54:41,377 INFO L226 Difference]: Without dead ends: 459 [2022-11-03 01:54:41,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:41,379 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1391 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:41,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 924 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:54:41,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-11-03 01:54:41,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 161. [2022-11-03 01:54:41,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4423076923076923) internal successors, (225), 156 states have internal predecessors, (225), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:41,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 231 transitions. [2022-11-03 01:54:41,397 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 231 transitions. Word has length 63 [2022-11-03 01:54:41,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:41,399 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 231 transitions. [2022-11-03 01:54:41,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:41,399 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 231 transitions. [2022-11-03 01:54:41,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:41,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:41,408 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:41,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:41,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:41,624 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:41,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:41,625 INFO L85 PathProgramCache]: Analyzing trace with hash -2064680490, now seen corresponding path program 1 times [2022-11-03 01:54:41,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:41,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983458875] [2022-11-03 01:54:41,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:41,625 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:41,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:41,627 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:41,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 01:54:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:41,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:41,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:42,177 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:42,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:42,177 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:42,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983458875] [2022-11-03 01:54:42,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983458875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:42,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:42,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:42,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099224526] [2022-11-03 01:54:42,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:42,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:42,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:42,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:42,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:42,180 INFO L87 Difference]: Start difference. First operand 161 states and 231 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:42,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:42,545 INFO L93 Difference]: Finished difference Result 620 states and 899 transitions. [2022-11-03 01:54:42,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:42,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:42,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:42,548 INFO L225 Difference]: With dead ends: 620 [2022-11-03 01:54:42,548 INFO L226 Difference]: Without dead ends: 461 [2022-11-03 01:54:42,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:42,550 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1394 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:42,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 904 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:54:42,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-03 01:54:42,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 163. [2022-11-03 01:54:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.4367088607594938) internal successors, (227), 158 states have internal predecessors, (227), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:42,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 233 transitions. [2022-11-03 01:54:42,563 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 233 transitions. Word has length 63 [2022-11-03 01:54:42,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:42,564 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 233 transitions. [2022-11-03 01:54:42,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:42,564 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 233 transitions. [2022-11-03 01:54:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:42,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:42,565 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:42,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:42,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:42,781 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:42,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:42,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2002640876, now seen corresponding path program 1 times [2022-11-03 01:54:42,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:42,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938894032] [2022-11-03 01:54:42,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:42,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:42,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:42,784 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:42,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 01:54:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:43,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:43,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:43,331 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:43,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:43,332 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:43,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938894032] [2022-11-03 01:54:43,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938894032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:43,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:43,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:43,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153046181] [2022-11-03 01:54:43,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:43,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:43,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:43,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:43,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:43,334 INFO L87 Difference]: Start difference. First operand 163 states and 233 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:43,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:43,710 INFO L93 Difference]: Finished difference Result 624 states and 902 transitions. [2022-11-03 01:54:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:43,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:43,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:43,713 INFO L225 Difference]: With dead ends: 624 [2022-11-03 01:54:43,713 INFO L226 Difference]: Without dead ends: 463 [2022-11-03 01:54:43,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:43,714 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1387 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:43,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 918 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:54:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-11-03 01:54:43,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 165. [2022-11-03 01:54:43,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 1.43125) internal successors, (229), 160 states have internal predecessors, (229), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 235 transitions. [2022-11-03 01:54:43,728 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 235 transitions. Word has length 63 [2022-11-03 01:54:43,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:43,729 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 235 transitions. [2022-11-03 01:54:43,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:43,729 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 235 transitions. [2022-11-03 01:54:43,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:43,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:43,730 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:43,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:43,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:43,946 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:43,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:43,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2136654382, now seen corresponding path program 1 times [2022-11-03 01:54:43,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:43,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263627276] [2022-11-03 01:54:43,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:43,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:43,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:43,948 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:43,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 01:54:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:44,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:44,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:44,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:44,531 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:44,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263627276] [2022-11-03 01:54:44,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263627276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:44,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:44,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:44,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985935812] [2022-11-03 01:54:44,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:44,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:44,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:44,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:44,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:44,533 INFO L87 Difference]: Start difference. First operand 165 states and 235 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:44,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:44,822 INFO L93 Difference]: Finished difference Result 628 states and 905 transitions. [2022-11-03 01:54:44,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:44,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:44,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:44,825 INFO L225 Difference]: With dead ends: 628 [2022-11-03 01:54:44,825 INFO L226 Difference]: Without dead ends: 465 [2022-11-03 01:54:44,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:44,827 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 1380 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:44,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 951 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:54:44,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-11-03 01:54:44,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 167. [2022-11-03 01:54:44,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.4259259259259258) internal successors, (231), 162 states have internal predecessors, (231), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:44,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 237 transitions. [2022-11-03 01:54:44,842 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 237 transitions. Word has length 63 [2022-11-03 01:54:44,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:44,843 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 237 transitions. [2022-11-03 01:54:44,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:44,843 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 237 transitions. [2022-11-03 01:54:44,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:44,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:44,844 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:44,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:45,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:45,060 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:45,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:45,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1917799664, now seen corresponding path program 1 times [2022-11-03 01:54:45,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:45,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875837051] [2022-11-03 01:54:45,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:45,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:45,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:45,062 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:45,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 01:54:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:45,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:45,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:45,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:45,599 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:45,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875837051] [2022-11-03 01:54:45,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875837051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:45,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:45,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:45,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082063160] [2022-11-03 01:54:45,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:45,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:45,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:45,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:45,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:45,601 INFO L87 Difference]: Start difference. First operand 167 states and 237 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:45,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:45,915 INFO L93 Difference]: Finished difference Result 632 states and 908 transitions. [2022-11-03 01:54:45,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:45,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:45,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:45,917 INFO L225 Difference]: With dead ends: 632 [2022-11-03 01:54:45,918 INFO L226 Difference]: Without dead ends: 467 [2022-11-03 01:54:45,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:45,919 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 1375 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:45,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 940 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:54:45,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-11-03 01:54:45,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 169. [2022-11-03 01:54:45,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.420731707317073) internal successors, (233), 164 states have internal predecessors, (233), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:45,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 239 transitions. [2022-11-03 01:54:45,934 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 239 transitions. Word has length 63 [2022-11-03 01:54:45,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:45,935 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 239 transitions. [2022-11-03 01:54:45,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:45,935 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 239 transitions. [2022-11-03 01:54:45,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:45,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:45,936 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:45,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:46,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:46,152 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:46,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:46,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1559519182, now seen corresponding path program 1 times [2022-11-03 01:54:46,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:46,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832755226] [2022-11-03 01:54:46,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:46,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:46,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:46,155 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:46,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 01:54:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:46,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:46,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:46,641 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:46,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:46,641 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:46,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832755226] [2022-11-03 01:54:46,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832755226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:46,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:46,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:46,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725240130] [2022-11-03 01:54:46,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:46,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:46,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:46,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:46,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:46,644 INFO L87 Difference]: Start difference. First operand 169 states and 239 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:46,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:46,958 INFO L93 Difference]: Finished difference Result 636 states and 911 transitions. [2022-11-03 01:54:46,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:46,959 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:46,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:46,961 INFO L225 Difference]: With dead ends: 636 [2022-11-03 01:54:46,962 INFO L226 Difference]: Without dead ends: 469 [2022-11-03 01:54:46,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:46,963 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 1366 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:46,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 950 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:54:46,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-11-03 01:54:46,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 171. [2022-11-03 01:54:46,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 166 states have (on average 1.4156626506024097) internal successors, (235), 166 states have internal predecessors, (235), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 241 transitions. [2022-11-03 01:54:46,979 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 241 transitions. Word has length 63 [2022-11-03 01:54:46,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:46,980 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 241 transitions. [2022-11-03 01:54:46,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:46,981 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 241 transitions. [2022-11-03 01:54:46,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:46,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:46,982 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:46,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:47,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:47,197 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:47,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:47,198 INFO L85 PathProgramCache]: Analyzing trace with hash -434625524, now seen corresponding path program 1 times [2022-11-03 01:54:47,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:47,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284740076] [2022-11-03 01:54:47,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:47,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:47,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:47,200 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:47,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 01:54:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:47,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:47,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:47,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:47,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:47,753 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:47,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284740076] [2022-11-03 01:54:47,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284740076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:47,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:47,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:47,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344148086] [2022-11-03 01:54:47,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:47,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:47,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:47,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:47,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:47,755 INFO L87 Difference]: Start difference. First operand 171 states and 241 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:48,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:48,071 INFO L93 Difference]: Finished difference Result 642 states and 917 transitions. [2022-11-03 01:54:48,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:48,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:48,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:48,075 INFO L225 Difference]: With dead ends: 642 [2022-11-03 01:54:48,075 INFO L226 Difference]: Without dead ends: 473 [2022-11-03 01:54:48,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:48,076 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1361 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:48,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 944 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:54:48,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-11-03 01:54:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 175. [2022-11-03 01:54:48,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.411764705882353) internal successors, (240), 170 states have internal predecessors, (240), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:48,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 246 transitions. [2022-11-03 01:54:48,094 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 246 transitions. Word has length 63 [2022-11-03 01:54:48,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:48,095 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 246 transitions. [2022-11-03 01:54:48,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:48,095 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 246 transitions. [2022-11-03 01:54:48,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:48,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:48,096 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:48,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:48,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:48,315 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:48,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:48,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1445742774, now seen corresponding path program 1 times [2022-11-03 01:54:48,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:48,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882965926] [2022-11-03 01:54:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:48,316 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:48,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:48,317 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:48,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 01:54:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:48,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:48,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:48,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:48,859 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:48,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882965926] [2022-11-03 01:54:48,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882965926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:48,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:48,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:48,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981355119] [2022-11-03 01:54:48,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:48,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:48,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:48,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:48,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:48,861 INFO L87 Difference]: Start difference. First operand 175 states and 246 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:49,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:49,167 INFO L93 Difference]: Finished difference Result 648 states and 923 transitions. [2022-11-03 01:54:49,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:49,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:49,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:49,170 INFO L225 Difference]: With dead ends: 648 [2022-11-03 01:54:49,170 INFO L226 Difference]: Without dead ends: 475 [2022-11-03 01:54:49,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:49,171 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1355 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:49,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 954 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:54:49,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-11-03 01:54:49,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 177. [2022-11-03 01:54:49,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 172 states have (on average 1.4069767441860466) internal successors, (242), 172 states have internal predecessors, (242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:49,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 248 transitions. [2022-11-03 01:54:49,192 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 248 transitions. Word has length 63 [2022-11-03 01:54:49,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:49,193 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 248 transitions. [2022-11-03 01:54:49,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:49,193 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 248 transitions. [2022-11-03 01:54:49,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:49,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:49,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:49,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:49,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:49,410 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:49,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:49,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1187577336, now seen corresponding path program 1 times [2022-11-03 01:54:49,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:49,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108552126] [2022-11-03 01:54:49,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:49,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:49,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:49,414 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:49,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 01:54:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:49,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:49,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:49,985 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:49,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:49,986 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:49,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108552126] [2022-11-03 01:54:49,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108552126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:49,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:49,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:49,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733446182] [2022-11-03 01:54:49,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:49,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:49,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:49,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:49,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:49,988 INFO L87 Difference]: Start difference. First operand 177 states and 248 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:50,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:50,275 INFO L93 Difference]: Finished difference Result 652 states and 926 transitions. [2022-11-03 01:54:50,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:50,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:50,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:50,278 INFO L225 Difference]: With dead ends: 652 [2022-11-03 01:54:50,278 INFO L226 Difference]: Without dead ends: 477 [2022-11-03 01:54:50,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:50,279 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1346 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:50,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 970 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:54:50,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-11-03 01:54:50,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 179. [2022-11-03 01:54:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.4022988505747127) internal successors, (244), 174 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:50,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 250 transitions. [2022-11-03 01:54:50,295 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 250 transitions. Word has length 63 [2022-11-03 01:54:50,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:50,296 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 250 transitions. [2022-11-03 01:54:50,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:50,296 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 250 transitions. [2022-11-03 01:54:50,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:50,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:50,297 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:50,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:50,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:50,512 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:50,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:50,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1580604346, now seen corresponding path program 1 times [2022-11-03 01:54:50,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:50,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709293099] [2022-11-03 01:54:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:50,513 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:50,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:50,514 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:50,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 01:54:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:50,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:54:50,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:51,035 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:51,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:51,035 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:51,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709293099] [2022-11-03 01:54:51,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709293099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:51,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:51,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:51,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583664682] [2022-11-03 01:54:51,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:51,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:51,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:51,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:51,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:51,037 INFO L87 Difference]: Start difference. First operand 179 states and 250 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:51,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:51,554 INFO L93 Difference]: Finished difference Result 656 states and 929 transitions. [2022-11-03 01:54:51,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:51,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:51,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:51,557 INFO L225 Difference]: With dead ends: 656 [2022-11-03 01:54:51,557 INFO L226 Difference]: Without dead ends: 479 [2022-11-03 01:54:51,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:51,558 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 1337 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:51,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 855 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 01:54:51,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-11-03 01:54:51,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 181. [2022-11-03 01:54:51,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.3977272727272727) internal successors, (246), 176 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:51,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 252 transitions. [2022-11-03 01:54:51,573 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 252 transitions. Word has length 63 [2022-11-03 01:54:51,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:51,574 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 252 transitions. [2022-11-03 01:54:51,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:51,574 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 252 transitions. [2022-11-03 01:54:51,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:51,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:51,575 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:51,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:51,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:51,790 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:51,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:51,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1905016324, now seen corresponding path program 1 times [2022-11-03 01:54:51,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:51,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256816003] [2022-11-03 01:54:51,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:51,791 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:51,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:51,792 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:51,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 01:54:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:52,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 01:54:52,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:52,334 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:52,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:52,334 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:52,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256816003] [2022-11-03 01:54:52,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256816003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:52,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:52,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:52,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501556458] [2022-11-03 01:54:52,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:52,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:52,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:52,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:52,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:52,337 INFO L87 Difference]: Start difference. First operand 181 states and 252 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:52,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:52,877 INFO L93 Difference]: Finished difference Result 660 states and 932 transitions. [2022-11-03 01:54:52,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:52,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:52,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:52,880 INFO L225 Difference]: With dead ends: 660 [2022-11-03 01:54:52,880 INFO L226 Difference]: Without dead ends: 481 [2022-11-03 01:54:52,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:54:52,881 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 1329 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:52,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 863 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 01:54:52,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-11-03 01:54:52,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 183. [2022-11-03 01:54:52,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.3932584269662922) internal successors, (248), 178 states have internal predecessors, (248), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:52,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 254 transitions. [2022-11-03 01:54:52,902 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 254 transitions. Word has length 63 [2022-11-03 01:54:52,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:52,902 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 254 transitions. [2022-11-03 01:54:52,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:52,903 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 254 transitions. [2022-11-03 01:54:52,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:52,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:52,904 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:52,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:53,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:53,120 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:53,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:53,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1962274626, now seen corresponding path program 1 times [2022-11-03 01:54:53,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:53,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790038505] [2022-11-03 01:54:53,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:53,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:53,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:53,123 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:53,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-03 01:54:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:53,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 01:54:53,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:53,752 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:53,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:53,753 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:53,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790038505] [2022-11-03 01:54:53,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790038505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:53,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:53,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 01:54:53,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521798515] [2022-11-03 01:54:53,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:53,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:54:53,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:53,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:54:53,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:54:53,755 INFO L87 Difference]: Start difference. First operand 183 states and 254 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:54,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:54,235 INFO L93 Difference]: Finished difference Result 509 states and 697 transitions. [2022-11-03 01:54:54,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 01:54:54,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:54,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:54,241 INFO L225 Difference]: With dead ends: 509 [2022-11-03 01:54:54,241 INFO L226 Difference]: Without dead ends: 507 [2022-11-03 01:54:54,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-03 01:54:54,242 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1243 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:54,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 954 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 01:54:54,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-11-03 01:54:54,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 255. [2022-11-03 01:54:54,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.364) internal successors, (341), 250 states have internal predecessors, (341), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:54:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 347 transitions. [2022-11-03 01:54:54,265 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 347 transitions. Word has length 63 [2022-11-03 01:54:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:54,266 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 347 transitions. [2022-11-03 01:54:54,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 347 transitions. [2022-11-03 01:54:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 01:54:54,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:54,267 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:54,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:54,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:54,483 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:54,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:54,483 INFO L85 PathProgramCache]: Analyzing trace with hash -2084546176, now seen corresponding path program 1 times [2022-11-03 01:54:54,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:54,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575889465] [2022-11-03 01:54:54,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:54,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:54,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:54,486 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:54,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-03 01:54:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:54,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 01:54:54,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:54,910 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:54:54,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:54,910 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:54,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575889465] [2022-11-03 01:54:54,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575889465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:54,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:54,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:54:54,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138879814] [2022-11-03 01:54:54,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:54,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:54:54,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:54,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:54:54,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:54:54,913 INFO L87 Difference]: Start difference. First operand 255 states and 347 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:55,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:55,008 INFO L93 Difference]: Finished difference Result 690 states and 949 transitions. [2022-11-03 01:54:55,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:54:55,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 01:54:55,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:55,012 INFO L225 Difference]: With dead ends: 690 [2022-11-03 01:54:55,012 INFO L226 Difference]: Without dead ends: 437 [2022-11-03 01:54:55,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 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 01:54:55,014 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 407 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:55,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 671 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:54:55,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-11-03 01:54:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 263. [2022-11-03 01:54:55,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 255 states have (on average 1.3568627450980393) internal successors, (346), 255 states have internal predecessors, (346), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:54:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 358 transitions. [2022-11-03 01:54:55,044 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 358 transitions. Word has length 63 [2022-11-03 01:54:55,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:55,044 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 358 transitions. [2022-11-03 01:54:55,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:54:55,045 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 358 transitions. [2022-11-03 01:54:55,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:54:55,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:55,048 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:54:55,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:55,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:54:55,264 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:55,265 INFO L85 PathProgramCache]: Analyzing trace with hash 84546769, now seen corresponding path program 1 times [2022-11-03 01:54:55,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:55,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89073051] [2022-11-03 01:54:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:55,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:55,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:55,267 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:55,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 01:54:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:55,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:54:55,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:56,157 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 01:54:56,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:54:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 01:54:56,502 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:56,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89073051] [2022-11-03 01:54:56,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89073051] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:54:56,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1144253705] [2022-11-03 01:54:56,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:56,503 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:54:56,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:54:56,506 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:54:56,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-03 01:54:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:57,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:54:57,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:57,483 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:54:57,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:57,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1144253705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:57,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:54:57,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 01:54:57,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140840268] [2022-11-03 01:54:57,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:57,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:54:57,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:57,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:54:57,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 01:54:57,490 INFO L87 Difference]: Start difference. First operand 263 states and 358 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:54:57,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:57,801 INFO L93 Difference]: Finished difference Result 1151 states and 1560 transitions. [2022-11-03 01:54:57,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:57,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:54:57,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:57,805 INFO L225 Difference]: With dead ends: 1151 [2022-11-03 01:54:57,805 INFO L226 Difference]: Without dead ends: 898 [2022-11-03 01:54:57,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 01:54:57,807 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 967 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:57,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 853 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:54:57,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-11-03 01:54:57,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 411. [2022-11-03 01:54:57,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 403 states have (on average 1.3349875930521091) internal successors, (538), 403 states have internal predecessors, (538), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:54:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 550 transitions. [2022-11-03 01:54:57,841 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 550 transitions. Word has length 218 [2022-11-03 01:54:57,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:57,842 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 550 transitions. [2022-11-03 01:54:57,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:54:57,842 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 550 transitions. [2022-11-03 01:54:57,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:54:57,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:57,845 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:54:57,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:58,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:58,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:54:58,267 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:54:58,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:58,267 INFO L85 PathProgramCache]: Analyzing trace with hash -301315633, now seen corresponding path program 1 times [2022-11-03 01:54:58,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:54:58,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843002433] [2022-11-03 01:54:58,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:58,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:54:58,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:54:58,270 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:54:58,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 01:54:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:59,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:54:59,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:59,552 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:54:59,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:54:59,552 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:54:59,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843002433] [2022-11-03 01:54:59,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843002433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:59,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:59,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:59,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650516572] [2022-11-03 01:54:59,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:59,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:54:59,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:54:59,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:54:59,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:54:59,555 INFO L87 Difference]: Start difference. First operand 411 states and 550 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:54:59,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:59,998 INFO L93 Difference]: Finished difference Result 1749 states and 2338 transitions. [2022-11-03 01:54:59,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:54:59,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:54:59,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:00,004 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 01:55:00,005 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 01:55:00,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:00,006 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 619 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:00,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1322 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 148 Invalid, 0 Unknown, 82 Unchecked, 0.3s Time] [2022-11-03 01:55:00,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 01:55:00,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 571. [2022-11-03 01:55:00,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 563 states have (on average 1.325044404973357) internal successors, (746), 563 states have internal predecessors, (746), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:00,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 758 transitions. [2022-11-03 01:55:00,042 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 758 transitions. Word has length 218 [2022-11-03 01:55:00,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:00,043 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 758 transitions. [2022-11-03 01:55:00,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:00,043 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 758 transitions. [2022-11-03 01:55:00,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:00,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:00,047 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:00,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:00,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:00,263 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:00,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:00,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1629810001, now seen corresponding path program 1 times [2022-11-03 01:55:00,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:00,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187820215] [2022-11-03 01:55:00,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:00,265 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:00,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:00,266 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:00,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-03 01:55:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:00,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:55:00,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:01,458 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:01,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:01,459 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:01,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187820215] [2022-11-03 01:55:01,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187820215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:01,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:01,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:01,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150765008] [2022-11-03 01:55:01,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:01,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:01,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:01,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:01,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:01,461 INFO L87 Difference]: Start difference. First operand 571 states and 758 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:01,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:01,894 INFO L93 Difference]: Finished difference Result 1749 states and 2337 transitions. [2022-11-03 01:55:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:01,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:01,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:01,899 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 01:55:01,899 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 01:55:01,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:01,900 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 607 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:01,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 1340 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 151 Invalid, 0 Unknown, 77 Unchecked, 0.3s Time] [2022-11-03 01:55:01,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 01:55:01,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 575. [2022-11-03 01:55:01,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 567 states have (on average 1.3245149911816578) internal successors, (751), 567 states have internal predecessors, (751), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:01,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 763 transitions. [2022-11-03 01:55:01,939 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 763 transitions. Word has length 218 [2022-11-03 01:55:01,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:01,940 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 763 transitions. [2022-11-03 01:55:01,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:01,940 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 763 transitions. [2022-11-03 01:55:01,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:01,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:01,944 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:01,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:02,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:02,161 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:02,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:02,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2056364499, now seen corresponding path program 1 times [2022-11-03 01:55:02,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:02,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844441991] [2022-11-03 01:55:02,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:02,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:02,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:02,163 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:02,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-03 01:55:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:02,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:55:02,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:03,369 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:03,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:03,370 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:03,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844441991] [2022-11-03 01:55:03,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844441991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:03,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:03,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:03,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780217494] [2022-11-03 01:55:03,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:03,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:03,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:03,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:03,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:03,372 INFO L87 Difference]: Start difference. First operand 575 states and 763 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:03,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:03,806 INFO L93 Difference]: Finished difference Result 1749 states and 2336 transitions. [2022-11-03 01:55:03,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:03,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:03,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:03,810 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 01:55:03,810 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 01:55:03,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:03,812 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 534 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:03,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1533 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 98 Unchecked, 0.3s Time] [2022-11-03 01:55:03,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 01:55:03,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 579. [2022-11-03 01:55:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 571 states have (on average 1.3239929947460596) internal successors, (756), 571 states have internal predecessors, (756), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 768 transitions. [2022-11-03 01:55:03,848 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 768 transitions. Word has length 218 [2022-11-03 01:55:03,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:03,848 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 768 transitions. [2022-11-03 01:55:03,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:03,849 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 768 transitions. [2022-11-03 01:55:03,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:03,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:03,852 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:03,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-11-03 01:55:04,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:04,076 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:04,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:04,077 INFO L85 PathProgramCache]: Analyzing trace with hash 268494677, now seen corresponding path program 1 times [2022-11-03 01:55:04,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:04,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279120321] [2022-11-03 01:55:04,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:04,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:04,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:04,079 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:04,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-03 01:55:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:04,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:55:04,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:05,261 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:05,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:05,262 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:05,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279120321] [2022-11-03 01:55:05,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279120321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:05,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:05,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:05,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530138262] [2022-11-03 01:55:05,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:05,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:05,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:05,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:05,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:05,264 INFO L87 Difference]: Start difference. First operand 579 states and 768 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:05,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:05,663 INFO L93 Difference]: Finished difference Result 1720 states and 2293 transitions. [2022-11-03 01:55:05,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:05,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:05,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:05,669 INFO L225 Difference]: With dead ends: 1720 [2022-11-03 01:55:05,669 INFO L226 Difference]: Without dead ends: 1319 [2022-11-03 01:55:05,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:05,671 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 476 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:05,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1519 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 152 Invalid, 0 Unknown, 91 Unchecked, 0.3s Time] [2022-11-03 01:55:05,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2022-11-03 01:55:05,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 587. [2022-11-03 01:55:05,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 579 states have (on average 1.3246977547495682) internal successors, (767), 579 states have internal predecessors, (767), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:05,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 779 transitions. [2022-11-03 01:55:05,709 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 779 transitions. Word has length 218 [2022-11-03 01:55:05,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:05,710 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 779 transitions. [2022-11-03 01:55:05,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:05,710 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 779 transitions. [2022-11-03 01:55:05,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:05,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:05,713 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:05,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:05,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:05,935 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:05,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:05,935 INFO L85 PathProgramCache]: Analyzing trace with hash -276377897, now seen corresponding path program 1 times [2022-11-03 01:55:05,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:05,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035678758] [2022-11-03 01:55:05,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:05,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:05,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:05,939 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:05,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 01:55:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:06,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:55:06,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:07,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:07,139 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:07,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035678758] [2022-11-03 01:55:07,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035678758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:07,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:07,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:07,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868798464] [2022-11-03 01:55:07,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:07,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:07,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:07,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:07,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:07,142 INFO L87 Difference]: Start difference. First operand 587 states and 779 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:07,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:07,620 INFO L93 Difference]: Finished difference Result 1749 states and 2334 transitions. [2022-11-03 01:55:07,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:07,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:07,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:07,625 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 01:55:07,625 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 01:55:07,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:07,626 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 500 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:07,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1590 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 98 Unchecked, 0.4s Time] [2022-11-03 01:55:07,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 01:55:07,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 591. [2022-11-03 01:55:07,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 583 states have (on average 1.3241852487135506) internal successors, (772), 583 states have internal predecessors, (772), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:07,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 784 transitions. [2022-11-03 01:55:07,676 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 784 transitions. Word has length 218 [2022-11-03 01:55:07,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:07,677 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 784 transitions. [2022-11-03 01:55:07,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:07,677 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 784 transitions. [2022-11-03 01:55:07,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:07,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:07,679 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:07,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:07,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:07,903 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:07,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:07,904 INFO L85 PathProgramCache]: Analyzing trace with hash -710883495, now seen corresponding path program 1 times [2022-11-03 01:55:07,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:07,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526670465] [2022-11-03 01:55:07,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:07,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:07,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:07,906 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:07,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-03 01:55:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:08,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:55:08,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:09,128 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:09,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:09,128 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:09,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526670465] [2022-11-03 01:55:09,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526670465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:09,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:09,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:09,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270642343] [2022-11-03 01:55:09,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:09,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:09,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:09,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:09,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:09,130 INFO L87 Difference]: Start difference. First operand 591 states and 784 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:09,544 INFO L93 Difference]: Finished difference Result 1749 states and 2333 transitions. [2022-11-03 01:55:09,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:09,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:09,548 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 01:55:09,548 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 01:55:09,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:09,550 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 553 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:09,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 1421 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 161 Invalid, 0 Unknown, 78 Unchecked, 0.3s Time] [2022-11-03 01:55:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 01:55:09,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 595. [2022-11-03 01:55:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 587 states have (on average 1.323679727427598) internal successors, (777), 587 states have internal predecessors, (777), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 789 transitions. [2022-11-03 01:55:09,589 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 789 transitions. Word has length 218 [2022-11-03 01:55:09,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:09,590 INFO L495 AbstractCegarLoop]: Abstraction has 595 states and 789 transitions. [2022-11-03 01:55:09,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:09,590 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 789 transitions. [2022-11-03 01:55:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:09,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:09,592 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:09,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-11-03 01:55:09,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:09,799 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:09,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:09,799 INFO L85 PathProgramCache]: Analyzing trace with hash 150950107, now seen corresponding path program 1 times [2022-11-03 01:55:09,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:09,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539260987] [2022-11-03 01:55:09,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:09,800 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:09,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:09,802 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:09,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-03 01:55:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:10,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:55:10,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:10,995 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:10,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:10,996 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:10,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539260987] [2022-11-03 01:55:10,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539260987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:10,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:10,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:10,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797688978] [2022-11-03 01:55:10,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:10,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:10,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:10,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:10,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:10,998 INFO L87 Difference]: Start difference. First operand 595 states and 789 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:11,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:11,430 INFO L93 Difference]: Finished difference Result 1749 states and 2332 transitions. [2022-11-03 01:55:11,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:11,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:11,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:11,435 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 01:55:11,436 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 01:55:11,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:11,437 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 478 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:11,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1620 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 168 Invalid, 0 Unknown, 77 Unchecked, 0.4s Time] [2022-11-03 01:55:11,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 01:55:11,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 599. [2022-11-03 01:55:11,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 591 states have (on average 1.3231810490693738) internal successors, (782), 591 states have internal predecessors, (782), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:11,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 794 transitions. [2022-11-03 01:55:11,484 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 794 transitions. Word has length 218 [2022-11-03 01:55:11,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:11,484 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 794 transitions. [2022-11-03 01:55:11,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:11,485 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 794 transitions. [2022-11-03 01:55:11,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:11,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:11,487 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:11,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-11-03 01:55:11,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:11,703 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:11,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1131222179, now seen corresponding path program 1 times [2022-11-03 01:55:11,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:11,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568799948] [2022-11-03 01:55:11,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:11,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:11,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:11,705 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:11,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-03 01:55:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:12,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:55:12,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 01:55:12,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:12,873 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 01:55:12,873 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:12,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568799948] [2022-11-03 01:55:12,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568799948] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:55:12,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [51599444] [2022-11-03 01:55:12,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:12,873 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:55:12,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:55:12,874 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:55:12,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2022-11-03 01:55:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:13,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:55:13,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:13,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:13,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [51599444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:13,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:55:13,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 01:55:13,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962917536] [2022-11-03 01:55:13,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:13,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:55:13,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:13,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:55:13,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 01:55:13,760 INFO L87 Difference]: Start difference. First operand 599 states and 794 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:14,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:14,052 INFO L93 Difference]: Finished difference Result 1549 states and 2080 transitions. [2022-11-03 01:55:14,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:14,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:14,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:14,056 INFO L225 Difference]: With dead ends: 1549 [2022-11-03 01:55:14,056 INFO L226 Difference]: Without dead ends: 1148 [2022-11-03 01:55:14,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 01:55:14,058 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 932 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:14,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 893 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:55:14,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-11-03 01:55:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 661. [2022-11-03 01:55:14,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 653 states have (on average 1.327718223583461) internal successors, (867), 653 states have internal predecessors, (867), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:14,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 879 transitions. [2022-11-03 01:55:14,095 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 879 transitions. Word has length 218 [2022-11-03 01:55:14,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:14,095 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 879 transitions. [2022-11-03 01:55:14,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:14,096 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 879 transitions. [2022-11-03 01:55:14,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:14,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:14,098 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:14,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-11-03 01:55:14,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:14,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:55:14,511 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:14,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:14,511 INFO L85 PathProgramCache]: Analyzing trace with hash 590780507, now seen corresponding path program 1 times [2022-11-03 01:55:14,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:14,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034374946] [2022-11-03 01:55:14,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:14,512 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:14,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:14,513 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:14,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-03 01:55:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:15,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:55:15,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:15,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:15,711 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:15,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034374946] [2022-11-03 01:55:15,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034374946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:15,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:15,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:15,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485286027] [2022-11-03 01:55:15,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:15,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:15,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:15,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:15,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:15,713 INFO L87 Difference]: Start difference. First operand 661 states and 879 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:16,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:16,143 INFO L93 Difference]: Finished difference Result 1877 states and 2512 transitions. [2022-11-03 01:55:16,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:16,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:16,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:16,147 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 01:55:16,148 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 01:55:16,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:16,149 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 469 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:16,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1620 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 167 Invalid, 0 Unknown, 72 Unchecked, 0.3s Time] [2022-11-03 01:55:16,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 01:55:16,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 667. [2022-11-03 01:55:16,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 659 states have (on average 1.3262518968133536) internal successors, (874), 659 states have internal predecessors, (874), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:16,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 886 transitions. [2022-11-03 01:55:16,188 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 886 transitions. Word has length 218 [2022-11-03 01:55:16,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:16,188 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 886 transitions. [2022-11-03 01:55:16,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 886 transitions. [2022-11-03 01:55:16,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:16,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:16,191 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:16,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:16,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:16,407 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:16,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:16,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1775254563, now seen corresponding path program 1 times [2022-11-03 01:55:16,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:16,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537681555] [2022-11-03 01:55:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:16,409 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:16,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:16,409 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:16,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-03 01:55:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:17,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:55:17,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:17,708 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:17,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:17,709 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:17,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537681555] [2022-11-03 01:55:17,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537681555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:17,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:17,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:17,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966830707] [2022-11-03 01:55:17,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:17,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:17,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:17,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:17,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:17,711 INFO L87 Difference]: Start difference. First operand 667 states and 886 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:18,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:18,178 INFO L93 Difference]: Finished difference Result 1877 states and 2511 transitions. [2022-11-03 01:55:18,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:18,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:18,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:18,183 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 01:55:18,183 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 01:55:18,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:18,184 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 458 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:18,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1635 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 51 Unchecked, 0.4s Time] [2022-11-03 01:55:18,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 01:55:18,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 671. [2022-11-03 01:55:18,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 663 states have (on average 1.3257918552036199) internal successors, (879), 663 states have internal predecessors, (879), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:18,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 891 transitions. [2022-11-03 01:55:18,224 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 891 transitions. Word has length 218 [2022-11-03 01:55:18,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:18,224 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 891 transitions. [2022-11-03 01:55:18,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:18,225 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 891 transitions. [2022-11-03 01:55:18,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:18,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:18,227 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:18,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:18,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:18,446 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:18,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:18,447 INFO L85 PathProgramCache]: Analyzing trace with hash 872349791, now seen corresponding path program 1 times [2022-11-03 01:55:18,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:18,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385901987] [2022-11-03 01:55:18,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:18,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:18,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:18,450 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:18,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-03 01:55:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:19,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:55:19,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:19,781 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:19,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:19,781 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:19,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385901987] [2022-11-03 01:55:19,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385901987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:19,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:19,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:19,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635815354] [2022-11-03 01:55:19,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:19,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:19,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:19,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:19,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:19,783 INFO L87 Difference]: Start difference. First operand 671 states and 891 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:20,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:20,199 INFO L93 Difference]: Finished difference Result 1792 states and 2385 transitions. [2022-11-03 01:55:20,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:20,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:20,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:20,203 INFO L225 Difference]: With dead ends: 1792 [2022-11-03 01:55:20,203 INFO L226 Difference]: Without dead ends: 1359 [2022-11-03 01:55:20,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:20,204 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 376 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:20,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1470 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 152 Invalid, 0 Unknown, 67 Unchecked, 0.3s Time] [2022-11-03 01:55:20,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2022-11-03 01:55:20,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 675. [2022-11-03 01:55:20,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 667 states have (on average 1.3253373313343328) internal successors, (884), 667 states have internal predecessors, (884), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 896 transitions. [2022-11-03 01:55:20,246 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 896 transitions. Word has length 218 [2022-11-03 01:55:20,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:20,247 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 896 transitions. [2022-11-03 01:55:20,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:20,247 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 896 transitions. [2022-11-03 01:55:20,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:20,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:20,249 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:20,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2022-11-03 01:55:20,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:20,474 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:20,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:20,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1269510687, now seen corresponding path program 1 times [2022-11-03 01:55:20,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:20,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433628144] [2022-11-03 01:55:20,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:20,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:20,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:20,477 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:20,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-03 01:55:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:21,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:55:21,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:21,808 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:21,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:21,809 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:21,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433628144] [2022-11-03 01:55:21,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433628144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:21,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:21,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:21,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044777811] [2022-11-03 01:55:21,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:21,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:21,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:21,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:21,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:21,811 INFO L87 Difference]: Start difference. First operand 675 states and 896 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:22,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:22,287 INFO L93 Difference]: Finished difference Result 1877 states and 2509 transitions. [2022-11-03 01:55:22,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:22,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:22,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:22,292 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 01:55:22,292 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 01:55:22,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:22,293 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 426 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:22,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 1682 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 176 Invalid, 0 Unknown, 88 Unchecked, 0.4s Time] [2022-11-03 01:55:22,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 01:55:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 683. [2022-11-03 01:55:22,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 675 states have (on average 1.325925925925926) internal successors, (895), 675 states have internal predecessors, (895), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:22,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 907 transitions. [2022-11-03 01:55:22,335 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 907 transitions. Word has length 218 [2022-11-03 01:55:22,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:22,336 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 907 transitions. [2022-11-03 01:55:22,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:22,336 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 907 transitions. [2022-11-03 01:55:22,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:22,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:22,339 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:22,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:22,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:22,552 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:22,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:22,553 INFO L85 PathProgramCache]: Analyzing trace with hash -238469789, now seen corresponding path program 1 times [2022-11-03 01:55:22,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:22,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257116353] [2022-11-03 01:55:22,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:22,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:22,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:22,555 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:22,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-03 01:55:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:23,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 01:55:23,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:23,972 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:23,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:23,972 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:23,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257116353] [2022-11-03 01:55:23,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257116353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:23,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:23,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:23,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559178089] [2022-11-03 01:55:23,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:23,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:23,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:23,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:23,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:23,975 INFO L87 Difference]: Start difference. First operand 683 states and 907 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:24,381 INFO L93 Difference]: Finished difference Result 1780 states and 2365 transitions. [2022-11-03 01:55:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:24,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:24,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:24,386 INFO L225 Difference]: With dead ends: 1780 [2022-11-03 01:55:24,387 INFO L226 Difference]: Without dead ends: 1347 [2022-11-03 01:55:24,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:24,388 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 388 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:24,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1278 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 149 Invalid, 0 Unknown, 82 Unchecked, 0.3s Time] [2022-11-03 01:55:24,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2022-11-03 01:55:24,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 687. [2022-11-03 01:55:24,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 679 states have (on average 1.3254786450662739) internal successors, (900), 679 states have internal predecessors, (900), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:24,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 912 transitions. [2022-11-03 01:55:24,429 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 912 transitions. Word has length 218 [2022-11-03 01:55:24,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:24,429 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 912 transitions. [2022-11-03 01:55:24,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:24,430 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 912 transitions. [2022-11-03 01:55:24,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:24,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:24,432 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:24,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2022-11-03 01:55:24,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:24,646 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:24,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:24,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1112915429, now seen corresponding path program 1 times [2022-11-03 01:55:24,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:24,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689144974] [2022-11-03 01:55:24,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:24,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:24,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:24,649 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:24,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-03 01:55:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:25,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:55:25,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:25,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:25,762 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:25,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689144974] [2022-11-03 01:55:25,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689144974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:25,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:25,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:25,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236078902] [2022-11-03 01:55:25,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:25,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:25,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:25,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:25,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:25,764 INFO L87 Difference]: Start difference. First operand 687 states and 912 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:26,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:26,242 INFO L93 Difference]: Finished difference Result 1877 states and 2507 transitions. [2022-11-03 01:55:26,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:26,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:26,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:26,247 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 01:55:26,248 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 01:55:26,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:26,250 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 402 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 105 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:26,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1723 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 181 Invalid, 0 Unknown, 105 Unchecked, 0.4s Time] [2022-11-03 01:55:26,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 01:55:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 691. [2022-11-03 01:55:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 683 states have (on average 1.3250366032210834) internal successors, (905), 683 states have internal predecessors, (905), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 917 transitions. [2022-11-03 01:55:26,300 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 917 transitions. Word has length 218 [2022-11-03 01:55:26,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:26,300 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 917 transitions. [2022-11-03 01:55:26,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:26,301 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 917 transitions. [2022-11-03 01:55:26,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:26,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:26,303 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:26,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:26,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:26,521 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:26,522 INFO L85 PathProgramCache]: Analyzing trace with hash -827666585, now seen corresponding path program 1 times [2022-11-03 01:55:26,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:26,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84147565] [2022-11-03 01:55:26,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:26,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:26,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:26,527 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:26,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-03 01:55:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:27,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 01:55:27,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:27,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:27,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:27,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84147565] [2022-11-03 01:55:27,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84147565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:27,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:27,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:27,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939387738] [2022-11-03 01:55:27,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:27,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:27,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:27,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:27,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:27,750 INFO L87 Difference]: Start difference. First operand 691 states and 917 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:28,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:28,026 INFO L93 Difference]: Finished difference Result 1128 states and 1507 transitions. [2022-11-03 01:55:28,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:55:28,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:28,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:28,029 INFO L225 Difference]: With dead ends: 1128 [2022-11-03 01:55:28,030 INFO L226 Difference]: Without dead ends: 695 [2022-11-03 01:55:28,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 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 01:55:28,031 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 41 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:28,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 951 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 62 Unchecked, 0.2s Time] [2022-11-03 01:55:28,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-11-03 01:55:28,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2022-11-03 01:55:28,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 687 states have (on average 1.3245997088791848) internal successors, (910), 687 states have internal predecessors, (910), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:28,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 922 transitions. [2022-11-03 01:55:28,069 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 922 transitions. Word has length 218 [2022-11-03 01:55:28,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:28,069 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 922 transitions. [2022-11-03 01:55:28,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:28,070 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 922 transitions. [2022-11-03 01:55:28,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:28,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:28,072 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:28,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2022-11-03 01:55:28,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:28,294 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:28,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:28,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1413942807, now seen corresponding path program 1 times [2022-11-03 01:55:28,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:28,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825912983] [2022-11-03 01:55:28,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:28,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:28,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:28,298 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:28,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-03 01:55:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:29,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:55:29,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 01:55:29,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 01:55:29,689 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:29,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825912983] [2022-11-03 01:55:29,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825912983] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:55:29,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [413843076] [2022-11-03 01:55:29,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:29,689 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:55:29,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:55:29,690 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:55:29,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2022-11-03 01:55:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:30,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:55:30,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:30,717 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:30,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:30,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [413843076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:30,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:55:30,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 01:55:30,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021470842] [2022-11-03 01:55:30,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:30,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:55:30,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:30,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:55:30,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 01:55:30,720 INFO L87 Difference]: Start difference. First operand 695 states and 922 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:31,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:31,061 INFO L93 Difference]: Finished difference Result 1677 states and 2254 transitions. [2022-11-03 01:55:31,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:31,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:31,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:31,065 INFO L225 Difference]: With dead ends: 1677 [2022-11-03 01:55:31,065 INFO L226 Difference]: Without dead ends: 1244 [2022-11-03 01:55:31,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 01:55:31,067 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 891 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:31,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 940 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:55:31,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-11-03 01:55:31,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 757. [2022-11-03 01:55:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 749 states have (on average 1.328437917222964) internal successors, (995), 749 states have internal predecessors, (995), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:31,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1007 transitions. [2022-11-03 01:55:31,111 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1007 transitions. Word has length 218 [2022-11-03 01:55:31,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:31,112 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 1007 transitions. [2022-11-03 01:55:31,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:31,112 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1007 transitions. [2022-11-03 01:55:31,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:31,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:31,115 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:31,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:31,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2022-11-03 01:55:31,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:31,522 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:31,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:31,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1004541671, now seen corresponding path program 1 times [2022-11-03 01:55:31,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:31,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089853382] [2022-11-03 01:55:31,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:31,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:31,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:31,525 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:31,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-03 01:55:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:32,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:55:32,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 01:55:32,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:32,846 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 01:55:32,846 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:32,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089853382] [2022-11-03 01:55:32,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089853382] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:55:32,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2064700751] [2022-11-03 01:55:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:32,847 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:55:32,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:55:32,852 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:55:32,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2022-11-03 01:55:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:33,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:55:33,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:33,825 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:55:33,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:33,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2064700751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:33,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:55:33,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 01:55:33,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683312117] [2022-11-03 01:55:33,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:33,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:55:33,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:33,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:55:33,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 01:55:33,827 INFO L87 Difference]: Start difference. First operand 757 states and 1007 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:34,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:34,142 INFO L93 Difference]: Finished difference Result 1723 states and 2320 transitions. [2022-11-03 01:55:34,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:55:34,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:55:34,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:34,144 INFO L225 Difference]: With dead ends: 1723 [2022-11-03 01:55:34,144 INFO L226 Difference]: Without dead ends: 1258 [2022-11-03 01:55:34,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 01:55:34,145 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 880 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:34,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 949 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:55:34,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-03 01:55:34,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 771. [2022-11-03 01:55:34,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 763 states have (on average 1.3302752293577982) internal successors, (1015), 763 states have internal predecessors, (1015), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:34,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1027 transitions. [2022-11-03 01:55:34,185 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1027 transitions. Word has length 218 [2022-11-03 01:55:34,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:34,185 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1027 transitions. [2022-11-03 01:55:34,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:55:34,186 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1027 transitions. [2022-11-03 01:55:34,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:34,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:34,188 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:34,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:34,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2022-11-03 01:55:34,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:55:34,603 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1971892325, now seen corresponding path program 1 times [2022-11-03 01:55:34,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:34,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376490876] [2022-11-03 01:55:34,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:34,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:34,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:34,606 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:34,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-03 01:55:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:35,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 01:55:35,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:36,178 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 47 proven. 16 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 01:55:36,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:38,476 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:38,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376490876] [2022-11-03 01:55:38,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376490876] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:38,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [566480524] [2022-11-03 01:55:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:38,477 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:55:38,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:55:38,479 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:55:38,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2022-11-03 01:55:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:39,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 01:55:39,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:39,578 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 01:55:39,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:39,855 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 01:55:39,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [566480524] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:55:39,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329064851] [2022-11-03 01:55:39,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:39,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:55:39,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:39,858 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:55:39,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-11-03 01:55:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:40,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 01:55:40,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 01:55:40,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:40,810 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 01:55:40,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329064851] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:55:40,810 INFO L184 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2022-11-03 01:55:40,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6, 6, 6] total 14 [2022-11-03 01:55:40,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994560327] [2022-11-03 01:55:40,812 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2022-11-03 01:55:40,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 01:55:40,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:40,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 01:55:40,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:55:40,814 INFO L87 Difference]: Start difference. First operand 771 states and 1027 transitions. Second operand has 14 states, 13 states have (on average 29.076923076923077) internal successors, (378), 14 states have internal predecessors, (378), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-03 01:55:43,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:43,253 INFO L93 Difference]: Finished difference Result 1547 states and 2114 transitions. [2022-11-03 01:55:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 01:55:43,254 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 29.076923076923077) internal successors, (378), 14 states have internal predecessors, (378), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 218 [2022-11-03 01:55:43,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:43,259 INFO L225 Difference]: With dead ends: 1547 [2022-11-03 01:55:43,259 INFO L226 Difference]: Without dead ends: 1068 [2022-11-03 01:55:43,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1305 GetRequests, 1266 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-11-03 01:55:43,261 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 913 mSDsluCounter, 5085 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 5812 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 254 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:43,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 5812 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1357 Invalid, 0 Unknown, 254 Unchecked, 1.9s Time] [2022-11-03 01:55:43,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-03 01:55:43,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 629. [2022-11-03 01:55:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 621 states have (on average 1.3317230273752012) internal successors, (827), 621 states have internal predecessors, (827), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:55:43,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 839 transitions. [2022-11-03 01:55:43,317 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 839 transitions. Word has length 218 [2022-11-03 01:55:43,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:43,318 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 839 transitions. [2022-11-03 01:55:43,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 29.076923076923077) internal successors, (378), 14 states have internal predecessors, (378), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-03 01:55:43,318 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 839 transitions. [2022-11-03 01:55:43,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:43,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:43,321 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:43,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:43,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2022-11-03 01:55:43,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2022-11-03 01:55:43,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:55:43,935 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:43,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:43,935 INFO L85 PathProgramCache]: Analyzing trace with hash 600144609, now seen corresponding path program 1 times [2022-11-03 01:55:43,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:43,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819760582] [2022-11-03 01:55:43,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:43,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:43,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:43,938 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:43,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-03 01:55:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:44,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 01:55:44,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 01:55:45,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:45,290 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:45,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819760582] [2022-11-03 01:55:45,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819760582] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:45,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [129969329] [2022-11-03 01:55:45,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:45,291 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:55:45,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:55:45,292 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:55:45,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2022-11-03 01:55:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:46,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 01:55:46,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:47,261 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 01:55:47,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:47,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [129969329] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:47,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024972588] [2022-11-03 01:55:47,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:47,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:55:47,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:47,707 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:55:47,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2022-11-03 01:55:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:48,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 01:55:48,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:49,278 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 01:55:49,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:49,825 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 01:55:49,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024972588] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:55:49,825 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-03 01:55:49,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 8, 8] total 28 [2022-11-03 01:55:49,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448625090] [2022-11-03 01:55:49,825 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-03 01:55:49,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-03 01:55:49,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:49,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-03 01:55:49,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1099, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 01:55:49,828 INFO L87 Difference]: Start difference. First operand 629 states and 839 transitions. Second operand has 28 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2022-11-03 01:55:58,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:58,410 INFO L93 Difference]: Finished difference Result 3249 states and 4498 transitions. [2022-11-03 01:55:58,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-11-03 01:55:58,410 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 218 [2022-11-03 01:55:58,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:58,416 INFO L225 Difference]: With dead ends: 3249 [2022-11-03 01:55:58,416 INFO L226 Difference]: Without dead ends: 2996 [2022-11-03 01:55:58,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1030 GetRequests, 923 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2326 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2327, Invalid=9445, Unknown=0, NotChecked=0, Total=11772 [2022-11-03 01:55:58,420 INFO L413 NwaCegarLoop]: 1168 mSDtfsCounter, 4075 mSDsluCounter, 15474 mSDsCounter, 0 mSdLazyCounter, 3584 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4075 SdHoareTripleChecker+Valid, 16642 SdHoareTripleChecker+Invalid, 4952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 3584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1047 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:58,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4075 Valid, 16642 Invalid, 4952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 3584 Invalid, 0 Unknown, 1047 Unchecked, 4.7s Time] [2022-11-03 01:55:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2022-11-03 01:55:58,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 852. [2022-11-03 01:55:58,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 835 states have (on average 1.3449101796407186) internal successors, (1123), 835 states have internal predecessors, (1123), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:55:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1153 transitions. [2022-11-03 01:55:58,543 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1153 transitions. Word has length 218 [2022-11-03 01:55:58,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:58,544 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1153 transitions. [2022-11-03 01:55:58,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2022-11-03 01:55:58,545 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1153 transitions. [2022-11-03 01:55:58,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:55:58,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:58,548 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:55:58,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:58,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2022-11-03 01:55:58,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Ended with exit code 0 [2022-11-03 01:55:59,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:59,173 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:59,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:59,174 INFO L85 PathProgramCache]: Analyzing trace with hash 685485245, now seen corresponding path program 1 times [2022-11-03 01:55:59,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:59,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931604374] [2022-11-03 01:55:59,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:59,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:59,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:59,176 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:59,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-03 01:55:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:59,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:55:59,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 01:56:00,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:00,519 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 01:56:00,519 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:00,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931604374] [2022-11-03 01:56:00,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931604374] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:00,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [756762868] [2022-11-03 01:56:00,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:00,520 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:00,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:00,521 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:00,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2022-11-03 01:56:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:01,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:01,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:01,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:01,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [756762868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:01,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:01,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 01:56:01,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176229721] [2022-11-03 01:56:01,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:01,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:01,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:01,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:01,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 01:56:01,482 INFO L87 Difference]: Start difference. First operand 852 states and 1153 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:01,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:01,813 INFO L93 Difference]: Finished difference Result 1490 states and 2045 transitions. [2022-11-03 01:56:01,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:01,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:01,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:01,816 INFO L225 Difference]: With dead ends: 1490 [2022-11-03 01:56:01,817 INFO L226 Difference]: Without dead ends: 1076 [2022-11-03 01:56:01,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 01:56:01,818 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 727 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:01,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 918 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:01,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-11-03 01:56:01,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 844. [2022-11-03 01:56:01,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.343409915356711) internal successors, (1111), 827 states have internal predecessors, (1111), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:01,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1141 transitions. [2022-11-03 01:56:01,917 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1141 transitions. Word has length 218 [2022-11-03 01:56:01,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:01,917 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1141 transitions. [2022-11-03 01:56:01,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:01,918 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1141 transitions. [2022-11-03 01:56:01,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:01,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:01,921 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:01,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:02,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2022-11-03 01:56:02,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:02,335 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:02,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:02,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1867745683, now seen corresponding path program 1 times [2022-11-03 01:56:02,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:02,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409685459] [2022-11-03 01:56:02,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:02,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:02,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:02,337 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:02,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-03 01:56:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:02,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:02,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:03,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:03,252 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:03,252 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:03,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409685459] [2022-11-03 01:56:03,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409685459] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:03,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [217509774] [2022-11-03 01:56:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:03,253 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:03,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:03,254 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:03,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2022-11-03 01:56:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:04,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:04,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:04,154 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:04,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:04,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [217509774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:04,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:04,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:04,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564945304] [2022-11-03 01:56:04,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:04,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:04,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:04,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:04,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:04,157 INFO L87 Difference]: Start difference. First operand 844 states and 1141 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:04,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:04,509 INFO L93 Difference]: Finished difference Result 1596 states and 2170 transitions. [2022-11-03 01:56:04,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:04,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:04,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:04,512 INFO L225 Difference]: With dead ends: 1596 [2022-11-03 01:56:04,512 INFO L226 Difference]: Without dead ends: 1062 [2022-11-03 01:56:04,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:04,514 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 565 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:04,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1103 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:04,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2022-11-03 01:56:04,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 844. [2022-11-03 01:56:04,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3409915356711004) internal successors, (1109), 827 states have internal predecessors, (1109), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:04,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1139 transitions. [2022-11-03 01:56:04,610 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1139 transitions. Word has length 218 [2022-11-03 01:56:04,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:04,610 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1139 transitions. [2022-11-03 01:56:04,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:04,611 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1139 transitions. [2022-11-03 01:56:04,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:04,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:04,613 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:04,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:04,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:05,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:05,035 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:05,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:05,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1022029935, now seen corresponding path program 1 times [2022-11-03 01:56:05,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:05,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521022257] [2022-11-03 01:56:05,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:05,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:05,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:05,037 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:05,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-03 01:56:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:05,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:05,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:05,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:05,997 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:05,997 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:05,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521022257] [2022-11-03 01:56:05,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521022257] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:05,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1087585187] [2022-11-03 01:56:05,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:05,998 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:05,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:05,999 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:06,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2022-11-03 01:56:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:06,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:06,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:06,889 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:06,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:06,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1087585187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:06,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:06,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:06,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023274979] [2022-11-03 01:56:06,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:06,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:06,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:06,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:06,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:06,891 INFO L87 Difference]: Start difference. First operand 844 states and 1139 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:07,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:07,272 INFO L93 Difference]: Finished difference Result 1579 states and 2145 transitions. [2022-11-03 01:56:07,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:07,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:07,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:07,274 INFO L225 Difference]: With dead ends: 1579 [2022-11-03 01:56:07,274 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:07,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:07,276 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 555 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:07,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1102 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:07,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:07,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:07,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.336154776299879) internal successors, (1105), 827 states have internal predecessors, (1105), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1135 transitions. [2022-11-03 01:56:07,370 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1135 transitions. Word has length 218 [2022-11-03 01:56:07,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:07,371 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1135 transitions. [2022-11-03 01:56:07,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:07,371 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1135 transitions. [2022-11-03 01:56:07,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:07,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:07,374 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:07,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Ended with exit code 0 [2022-11-03 01:56:07,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2022-11-03 01:56:07,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:07,791 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:07,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:07,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1375957903, now seen corresponding path program 1 times [2022-11-03 01:56:07,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:07,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738229259] [2022-11-03 01:56:07,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:07,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:07,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:07,793 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:07,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-03 01:56:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:08,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:08,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:08,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:08,769 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:08,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738229259] [2022-11-03 01:56:08,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738229259] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:08,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [425461314] [2022-11-03 01:56:08,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:08,769 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:08,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:08,770 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:08,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2022-11-03 01:56:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:09,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:09,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:09,666 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:09,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:09,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [425461314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:09,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:09,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:09,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808891120] [2022-11-03 01:56:09,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:09,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:09,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:09,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:09,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:09,668 INFO L87 Difference]: Start difference. First operand 844 states and 1135 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:10,020 INFO L93 Difference]: Finished difference Result 1571 states and 2128 transitions. [2022-11-03 01:56:10,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:10,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:10,023 INFO L225 Difference]: With dead ends: 1571 [2022-11-03 01:56:10,023 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:10,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:10,024 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 549 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:10,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1102 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:10,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3313180169286578) internal successors, (1101), 827 states have internal predecessors, (1101), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:10,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1131 transitions. [2022-11-03 01:56:10,132 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1131 transitions. Word has length 218 [2022-11-03 01:56:10,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:10,132 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1131 transitions. [2022-11-03 01:56:10,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:10,132 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1131 transitions. [2022-11-03 01:56:10,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:10,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:10,135 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:10,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2022-11-03 01:56:10,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:10,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:10,542 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:10,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:10,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1531938445, now seen corresponding path program 1 times [2022-11-03 01:56:10,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:10,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113894613] [2022-11-03 01:56:10,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:10,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:10,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:10,546 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:10,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-03 01:56:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:11,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:11,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:11,462 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:11,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:11,622 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:11,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113894613] [2022-11-03 01:56:11,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113894613] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:11,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2069769914] [2022-11-03 01:56:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:11,623 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:11,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:11,623 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:11,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2022-11-03 01:56:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:12,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:12,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:12,574 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:12,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:12,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2069769914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:12,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:12,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:12,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747713132] [2022-11-03 01:56:12,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:12,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:12,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:12,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:12,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:12,576 INFO L87 Difference]: Start difference. First operand 844 states and 1131 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:12,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:12,929 INFO L93 Difference]: Finished difference Result 1563 states and 2111 transitions. [2022-11-03 01:56:12,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:12,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:12,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:12,931 INFO L225 Difference]: With dead ends: 1563 [2022-11-03 01:56:12,931 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:12,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:12,933 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 543 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:12,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1096 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:12,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:13,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:13,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3264812575574365) internal successors, (1097), 827 states have internal predecessors, (1097), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:13,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1127 transitions. [2022-11-03 01:56:13,028 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1127 transitions. Word has length 218 [2022-11-03 01:56:13,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:13,028 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1127 transitions. [2022-11-03 01:56:13,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1127 transitions. [2022-11-03 01:56:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:13,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:13,031 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:13,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:13,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2022-11-03 01:56:13,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:13,447 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:13,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:13,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1462290571, now seen corresponding path program 1 times [2022-11-03 01:56:13,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:13,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358147574] [2022-11-03 01:56:13,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:13,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:13,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:13,450 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:13,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-03 01:56:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:14,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:14,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:14,213 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:14,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:14,374 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:14,374 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:14,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358147574] [2022-11-03 01:56:14,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358147574] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:14,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1771622194] [2022-11-03 01:56:14,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:14,375 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:14,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:14,383 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:14,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2022-11-03 01:56:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:15,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:15,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:15,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:15,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1771622194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:15,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:15,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:15,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156102831] [2022-11-03 01:56:15,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:15,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:15,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:15,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:15,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:15,310 INFO L87 Difference]: Start difference. First operand 844 states and 1127 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:15,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:15,660 INFO L93 Difference]: Finished difference Result 1555 states and 2091 transitions. [2022-11-03 01:56:15,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:15,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:15,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:15,663 INFO L225 Difference]: With dead ends: 1555 [2022-11-03 01:56:15,663 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:15,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:15,664 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 537 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:15,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1093 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:15,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:15,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:15,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3216444981862152) internal successors, (1093), 827 states have internal predecessors, (1093), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:15,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1123 transitions. [2022-11-03 01:56:15,741 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1123 transitions. Word has length 218 [2022-11-03 01:56:15,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:15,741 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1123 transitions. [2022-11-03 01:56:15,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:15,741 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1123 transitions. [2022-11-03 01:56:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:15,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:15,744 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:15,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (58)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:15,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Ended with exit code 0 [2022-11-03 01:56:16,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:16,151 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:16,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:16,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1098824073, now seen corresponding path program 1 times [2022-11-03 01:56:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:16,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944135868] [2022-11-03 01:56:16,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:16,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:16,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:16,153 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:16,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-03 01:56:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:16,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:16,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:16,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:17,100 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:17,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944135868] [2022-11-03 01:56:17,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944135868] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:17,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1598736212] [2022-11-03 01:56:17,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:17,101 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:17,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:17,101 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:17,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2022-11-03 01:56:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:17,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:17,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:18,027 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:18,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:18,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1598736212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:18,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:18,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:18,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656119256] [2022-11-03 01:56:18,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:18,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:18,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:18,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:18,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:18,028 INFO L87 Difference]: Start difference. First operand 844 states and 1123 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:18,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:18,417 INFO L93 Difference]: Finished difference Result 1547 states and 2074 transitions. [2022-11-03 01:56:18,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:18,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:18,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:18,419 INFO L225 Difference]: With dead ends: 1547 [2022-11-03 01:56:18,420 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:18,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:18,421 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 531 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:18,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1093 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:18,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:18,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:18,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.316807738814994) internal successors, (1089), 827 states have internal predecessors, (1089), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:18,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1119 transitions. [2022-11-03 01:56:18,560 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1119 transitions. Word has length 218 [2022-11-03 01:56:18,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:18,560 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1119 transitions. [2022-11-03 01:56:18,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:18,561 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1119 transitions. [2022-11-03 01:56:18,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:18,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:18,563 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:18,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:18,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:18,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:18,970 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:18,970 INFO L85 PathProgramCache]: Analyzing trace with hash -2046876039, now seen corresponding path program 1 times [2022-11-03 01:56:18,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:18,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431506699] [2022-11-03 01:56:18,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:18,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:18,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:18,972 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:18,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-03 01:56:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:19,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:19,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:19,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:19,921 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:19,921 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:19,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431506699] [2022-11-03 01:56:19,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431506699] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:19,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1428159321] [2022-11-03 01:56:19,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:19,922 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:19,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:19,927 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:19,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2022-11-03 01:56:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:20,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:20,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:20,896 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:20,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:20,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1428159321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:20,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:20,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:20,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191830561] [2022-11-03 01:56:20,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:20,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:20,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:20,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:20,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:20,898 INFO L87 Difference]: Start difference. First operand 844 states and 1119 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:21,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:21,266 INFO L93 Difference]: Finished difference Result 1539 states and 2057 transitions. [2022-11-03 01:56:21,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:21,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:21,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:21,270 INFO L225 Difference]: With dead ends: 1539 [2022-11-03 01:56:21,270 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:21,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:21,272 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 525 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:21,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 1087 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:21,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:21,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:21,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3119709794437726) internal successors, (1085), 827 states have internal predecessors, (1085), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:21,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1115 transitions. [2022-11-03 01:56:21,367 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1115 transitions. Word has length 218 [2022-11-03 01:56:21,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:21,368 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1115 transitions. [2022-11-03 01:56:21,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:21,368 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1115 transitions. [2022-11-03 01:56:21,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:21,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:21,370 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:21,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:21,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:21,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:21,787 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:21,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:21,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1541494651, now seen corresponding path program 1 times [2022-11-03 01:56:21,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:21,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518982951] [2022-11-03 01:56:21,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:21,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:21,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:21,789 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:21,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-03 01:56:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:22,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:22,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:22,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:22,715 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:22,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518982951] [2022-11-03 01:56:22,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518982951] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:22,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [741409446] [2022-11-03 01:56:22,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:22,715 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:22,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:22,716 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:22,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2022-11-03 01:56:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:23,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:23,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:23,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:23,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [741409446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:23,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:23,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:23,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119671753] [2022-11-03 01:56:23,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:23,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:23,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:23,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:23,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:23,672 INFO L87 Difference]: Start difference. First operand 844 states and 1115 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:24,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:24,019 INFO L93 Difference]: Finished difference Result 1531 states and 2040 transitions. [2022-11-03 01:56:24,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:24,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:24,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:24,021 INFO L225 Difference]: With dead ends: 1531 [2022-11-03 01:56:24,021 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:24,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:24,022 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 519 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:24,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1084 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:24,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:24,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3071342200725513) internal successors, (1081), 827 states have internal predecessors, (1081), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:24,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1111 transitions. [2022-11-03 01:56:24,094 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1111 transitions. Word has length 218 [2022-11-03 01:56:24,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:24,094 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1111 transitions. [2022-11-03 01:56:24,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:24,094 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1111 transitions. [2022-11-03 01:56:24,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:24,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:24,096 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:24,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:24,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2022-11-03 01:56:24,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:24,497 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:24,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:24,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2029541757, now seen corresponding path program 1 times [2022-11-03 01:56:24,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:24,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708582851] [2022-11-03 01:56:24,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:24,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:24,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:24,499 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:24,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-03 01:56:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:25,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:25,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:25,274 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:25,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:25,439 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:25,440 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:25,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708582851] [2022-11-03 01:56:25,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708582851] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:25,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1042347002] [2022-11-03 01:56:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:25,440 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:25,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:25,441 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:25,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2022-11-03 01:56:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:26,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:26,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:26,400 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:26,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:26,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1042347002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:26,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:26,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:26,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607840851] [2022-11-03 01:56:26,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:26,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:26,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:26,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:26,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:26,402 INFO L87 Difference]: Start difference. First operand 844 states and 1111 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:26,761 INFO L93 Difference]: Finished difference Result 1515 states and 2016 transitions. [2022-11-03 01:56:26,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:26,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:26,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:26,763 INFO L225 Difference]: With dead ends: 1515 [2022-11-03 01:56:26,763 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:26,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:26,764 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 509 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:26,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1083 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:26,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:26,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.30229746070133) internal successors, (1077), 827 states have internal predecessors, (1077), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:26,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1107 transitions. [2022-11-03 01:56:26,858 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1107 transitions. Word has length 218 [2022-11-03 01:56:26,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:26,859 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1107 transitions. [2022-11-03 01:56:26,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:26,859 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1107 transitions. [2022-11-03 01:56:26,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:26,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:26,861 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:26,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (66)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:27,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:27,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:27,268 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:27,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:27,268 INFO L85 PathProgramCache]: Analyzing trace with hash -538280577, now seen corresponding path program 1 times [2022-11-03 01:56:27,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:27,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940837590] [2022-11-03 01:56:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:27,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:27,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:27,275 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:27,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-03 01:56:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:28,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:28,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:28,224 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:28,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:28,460 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:28,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940837590] [2022-11-03 01:56:28,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940837590] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:28,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1729273689] [2022-11-03 01:56:28,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:28,461 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:28,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:28,462 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:28,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2022-11-03 01:56:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:29,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:29,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:29,443 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:29,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:29,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1729273689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:29,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:29,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:29,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692503801] [2022-11-03 01:56:29,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:29,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:29,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:29,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:29,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:29,444 INFO L87 Difference]: Start difference. First operand 844 states and 1107 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:29,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:29,827 INFO L93 Difference]: Finished difference Result 1507 states and 1999 transitions. [2022-11-03 01:56:29,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:29,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:29,830 INFO L225 Difference]: With dead ends: 1507 [2022-11-03 01:56:29,830 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:29,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:29,832 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 503 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:29,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1080 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:29,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:29,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.297460701330109) internal successors, (1073), 827 states have internal predecessors, (1073), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:29,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1103 transitions. [2022-11-03 01:56:29,939 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1103 transitions. Word has length 218 [2022-11-03 01:56:29,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:29,939 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1103 transitions. [2022-11-03 01:56:29,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:29,939 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1103 transitions. [2022-11-03 01:56:29,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:29,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:29,942 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:29,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:30,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2022-11-03 01:56:30,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:30,343 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:30,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:30,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1576865151, now seen corresponding path program 1 times [2022-11-03 01:56:30,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:30,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410042491] [2022-11-03 01:56:30,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:30,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:30,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:30,346 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:30,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-11-03 01:56:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:31,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:31,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:31,131 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:31,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:31,290 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:31,290 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:31,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410042491] [2022-11-03 01:56:31,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410042491] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:31,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [714644754] [2022-11-03 01:56:31,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:31,291 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:31,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:31,292 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:31,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2022-11-03 01:56:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:32,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:32,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:32,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:32,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [714644754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:32,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:32,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:32,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493199782] [2022-11-03 01:56:32,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:32,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:32,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:32,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:32,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:32,276 INFO L87 Difference]: Start difference. First operand 844 states and 1103 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:32,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:32,664 INFO L93 Difference]: Finished difference Result 1499 states and 1982 transitions. [2022-11-03 01:56:32,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:32,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:32,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:32,666 INFO L225 Difference]: With dead ends: 1499 [2022-11-03 01:56:32,667 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:32,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:32,667 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 497 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:32,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1080 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:32,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:32,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:32,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2926239419588876) internal successors, (1069), 827 states have internal predecessors, (1069), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:32,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1099 transitions. [2022-11-03 01:56:32,727 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1099 transitions. Word has length 218 [2022-11-03 01:56:32,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:32,727 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1099 transitions. [2022-11-03 01:56:32,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:32,728 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1099 transitions. [2022-11-03 01:56:32,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:32,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:32,729 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:32,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2022-11-03 01:56:32,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Ended with exit code 0 [2022-11-03 01:56:33,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:33,130 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:33,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:33,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1458423677, now seen corresponding path program 1 times [2022-11-03 01:56:33,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:33,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652235388] [2022-11-03 01:56:33,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:33,133 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:33,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:33,134 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:33,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-03 01:56:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:33,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:33,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:33,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:34,089 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:34,089 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:34,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652235388] [2022-11-03 01:56:34,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [652235388] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:34,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1555567784] [2022-11-03 01:56:34,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:34,089 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:34,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:34,092 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:34,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2022-11-03 01:56:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:34,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:34,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:35,080 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:35,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:35,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1555567784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:35,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:35,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:35,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729654345] [2022-11-03 01:56:35,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:35,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:35,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:35,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:35,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:35,082 INFO L87 Difference]: Start difference. First operand 844 states and 1099 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:35,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:35,453 INFO L93 Difference]: Finished difference Result 1491 states and 1962 transitions. [2022-11-03 01:56:35,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:35,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:35,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:35,455 INFO L225 Difference]: With dead ends: 1491 [2022-11-03 01:56:35,455 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:35,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:35,456 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 491 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:35,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1074 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:35,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2877871825876663) internal successors, (1065), 827 states have internal predecessors, (1065), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:35,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1095 transitions. [2022-11-03 01:56:35,543 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1095 transitions. Word has length 218 [2022-11-03 01:56:35,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:35,544 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1095 transitions. [2022-11-03 01:56:35,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:35,544 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1095 transitions. [2022-11-03 01:56:35,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:35,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:35,548 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:35,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Ended with exit code 0 [2022-11-03 01:56:35,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (72)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:35,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:35,963 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:35,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:35,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1529401221, now seen corresponding path program 1 times [2022-11-03 01:56:35,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:35,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170561906] [2022-11-03 01:56:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:35,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:35,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:35,967 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:36,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-03 01:56:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:36,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:36,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:36,827 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:36,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:37,002 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:37,003 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:37,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170561906] [2022-11-03 01:56:37,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170561906] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:37,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1825056105] [2022-11-03 01:56:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:37,003 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:37,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:37,004 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:37,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2022-11-03 01:56:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:37,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:37,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:38,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:38,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1825056105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:38,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:38,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:38,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704285833] [2022-11-03 01:56:38,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:38,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:38,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:38,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:38,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:38,008 INFO L87 Difference]: Start difference. First operand 844 states and 1095 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:38,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:38,376 INFO L93 Difference]: Finished difference Result 1483 states and 1945 transitions. [2022-11-03 01:56:38,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:38,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:38,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:38,379 INFO L225 Difference]: With dead ends: 1483 [2022-11-03 01:56:38,379 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:38,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:38,380 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 485 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:38,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1074 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:38,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:38,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:38,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.282950423216445) internal successors, (1061), 827 states have internal predecessors, (1061), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1091 transitions. [2022-11-03 01:56:38,480 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1091 transitions. Word has length 218 [2022-11-03 01:56:38,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:38,481 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1091 transitions. [2022-11-03 01:56:38,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:38,481 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1091 transitions. [2022-11-03 01:56:38,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:38,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:38,484 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:38,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (74)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:38,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Ended with exit code 0 [2022-11-03 01:56:38,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:38,899 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:38,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:38,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1164494969, now seen corresponding path program 1 times [2022-11-03 01:56:38,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:38,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274158328] [2022-11-03 01:56:38,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:38,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:38,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:38,901 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:38,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-11-03 01:56:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:39,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:39,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:39,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:39,847 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:39,847 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:39,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274158328] [2022-11-03 01:56:39,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274158328] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:39,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [516299041] [2022-11-03 01:56:39,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:39,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:39,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:39,849 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:39,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (76)] Waiting until timeout for monitored process [2022-11-03 01:56:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:40,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:40,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:40,846 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:40,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:40,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [516299041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:40,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:40,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:40,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520251640] [2022-11-03 01:56:40,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:40,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:40,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:40,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:40,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:40,848 INFO L87 Difference]: Start difference. First operand 844 states and 1091 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:41,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:41,226 INFO L93 Difference]: Finished difference Result 1475 states and 1928 transitions. [2022-11-03 01:56:41,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:41,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:41,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:41,228 INFO L225 Difference]: With dead ends: 1475 [2022-11-03 01:56:41,228 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:41,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:41,230 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 479 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:41,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1068 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:41,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:41,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:41,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2781136638452237) internal successors, (1057), 827 states have internal predecessors, (1057), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:41,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1087 transitions. [2022-11-03 01:56:41,329 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1087 transitions. Word has length 218 [2022-11-03 01:56:41,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:41,329 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1087 transitions. [2022-11-03 01:56:41,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:41,329 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1087 transitions. [2022-11-03 01:56:41,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:41,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:41,332 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:41,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:41,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (76)] Ended with exit code 0 [2022-11-03 01:56:41,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:41,755 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:41,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:41,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2048003959, now seen corresponding path program 1 times [2022-11-03 01:56:41,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:41,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38411681] [2022-11-03 01:56:41,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:41,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:41,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:41,757 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:41,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-03 01:56:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:42,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:42,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:42,514 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:42,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:42,681 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:42,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:42,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38411681] [2022-11-03 01:56:42,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [38411681] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:42,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [801900470] [2022-11-03 01:56:42,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:42,682 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:42,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:42,682 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:42,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2022-11-03 01:56:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:43,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:43,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:43,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:43,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [801900470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:43,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:43,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:43,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678293148] [2022-11-03 01:56:43,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:43,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:43,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:43,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:43,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:43,720 INFO L87 Difference]: Start difference. First operand 844 states and 1087 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:44,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:44,063 INFO L93 Difference]: Finished difference Result 1467 states and 1911 transitions. [2022-11-03 01:56:44,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:44,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:44,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:44,064 INFO L225 Difference]: With dead ends: 1467 [2022-11-03 01:56:44,065 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 01:56:44,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:44,066 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 473 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:44,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1068 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:44,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 01:56:44,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 01:56:44,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2732769044740024) internal successors, (1053), 827 states have internal predecessors, (1053), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:44,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1083 transitions. [2022-11-03 01:56:44,127 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1083 transitions. Word has length 218 [2022-11-03 01:56:44,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:44,128 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1083 transitions. [2022-11-03 01:56:44,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:44,128 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1083 transitions. [2022-11-03 01:56:44,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:44,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:44,130 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:44,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Ended with exit code 0 [2022-11-03 01:56:44,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (78)] Ended with exit code 0 [2022-11-03 01:56:44,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:44,531 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:44,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:44,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1476229771, now seen corresponding path program 1 times [2022-11-03 01:56:44,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:44,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118230350] [2022-11-03 01:56:44,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:44,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:44,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:44,533 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:44,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-03 01:56:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:45,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:45,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:45,326 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:45,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:45,508 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:45,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:45,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118230350] [2022-11-03 01:56:45,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118230350] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:45,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1431489806] [2022-11-03 01:56:45,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:45,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:45,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:45,510 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:45,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2022-11-03 01:56:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:46,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:46,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:46,538 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:46,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:46,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1431489806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:46,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:46,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:46,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788222864] [2022-11-03 01:56:46,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:46,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:46,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:46,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:46,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:46,540 INFO L87 Difference]: Start difference. First operand 844 states and 1083 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:46,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:46,887 INFO L93 Difference]: Finished difference Result 1467 states and 1907 transitions. [2022-11-03 01:56:46,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:46,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:46,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:46,889 INFO L225 Difference]: With dead ends: 1467 [2022-11-03 01:56:46,889 INFO L226 Difference]: Without dead ends: 1061 [2022-11-03 01:56:46,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:46,890 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 465 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:46,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1064 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:46,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-11-03 01:56:46,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 844. [2022-11-03 01:56:46,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2708585247883917) internal successors, (1051), 827 states have internal predecessors, (1051), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:46,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1081 transitions. [2022-11-03 01:56:46,970 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1081 transitions. Word has length 218 [2022-11-03 01:56:46,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:46,970 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1081 transitions. [2022-11-03 01:56:46,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:46,970 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1081 transitions. [2022-11-03 01:56:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:46,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:46,973 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:46,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (80)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:47,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Ended with exit code 0 [2022-11-03 01:56:47,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:47,380 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:47,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:47,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1493881331, now seen corresponding path program 1 times [2022-11-03 01:56:47,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:47,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45542633] [2022-11-03 01:56:47,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:47,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:47,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:47,382 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:47,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-11-03 01:56:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:48,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:48,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:48,155 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:48,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:48,327 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:48,327 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:48,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45542633] [2022-11-03 01:56:48,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45542633] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:48,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1295730986] [2022-11-03 01:56:48,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:48,328 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:48,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:48,330 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:48,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (82)] Waiting until timeout for monitored process [2022-11-03 01:56:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:49,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:49,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:49,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:49,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1295730986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:49,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:49,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:49,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093008188] [2022-11-03 01:56:49,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:49,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:49,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:49,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:49,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:49,351 INFO L87 Difference]: Start difference. First operand 844 states and 1081 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:49,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:49,711 INFO L93 Difference]: Finished difference Result 1481 states and 1922 transitions. [2022-11-03 01:56:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:49,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:49,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:49,713 INFO L225 Difference]: With dead ends: 1481 [2022-11-03 01:56:49,714 INFO L226 Difference]: Without dead ends: 1075 [2022-11-03 01:56:49,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:49,715 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 455 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:49,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1063 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:49,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2022-11-03 01:56:49,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 844. [2022-11-03 01:56:49,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2660217654171706) internal successors, (1047), 827 states have internal predecessors, (1047), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:49,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1077 transitions. [2022-11-03 01:56:49,813 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1077 transitions. Word has length 218 [2022-11-03 01:56:49,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:49,814 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1077 transitions. [2022-11-03 01:56:49,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:49,814 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1077 transitions. [2022-11-03 01:56:49,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:49,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:49,816 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:49,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (82)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:50,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Ended with exit code 0 [2022-11-03 01:56:50,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:50,223 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:50,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:50,223 INFO L85 PathProgramCache]: Analyzing trace with hash 240223119, now seen corresponding path program 1 times [2022-11-03 01:56:50,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:50,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534028088] [2022-11-03 01:56:50,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:50,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:50,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:50,225 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:50,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-03 01:56:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:50,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:50,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:51,003 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:51,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:51,167 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:51,168 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:51,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534028088] [2022-11-03 01:56:51,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534028088] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:51,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [73382472] [2022-11-03 01:56:51,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:51,168 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:51,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:51,170 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:51,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (84)] Waiting until timeout for monitored process [2022-11-03 01:56:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:52,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:52,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:52,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:52,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [73382472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:52,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:52,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:52,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882048664] [2022-11-03 01:56:52,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:52,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:52,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:52,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:52,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:52,207 INFO L87 Difference]: Start difference. First operand 844 states and 1077 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:52,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:52,565 INFO L93 Difference]: Finished difference Result 1505 states and 1947 transitions. [2022-11-03 01:56:52,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:52,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:52,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:52,567 INFO L225 Difference]: With dead ends: 1505 [2022-11-03 01:56:52,567 INFO L226 Difference]: Without dead ends: 1099 [2022-11-03 01:56:52,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:52,568 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 445 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:52,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1062 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:52,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2022-11-03 01:56:52,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 848. [2022-11-03 01:56:52,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 831 states have (on average 1.2623345367027679) internal successors, (1049), 831 states have internal predecessors, (1049), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:52,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1079 transitions. [2022-11-03 01:56:52,627 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1079 transitions. Word has length 218 [2022-11-03 01:56:52,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:52,627 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1079 transitions. [2022-11-03 01:56:52,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:52,628 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1079 transitions. [2022-11-03 01:56:52,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:52,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:52,629 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:52,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (84)] Ended with exit code 0 [2022-11-03 01:56:52,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Ended with exit code 0 [2022-11-03 01:56:53,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:56:53,030 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:53,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:53,030 INFO L85 PathProgramCache]: Analyzing trace with hash -975930607, now seen corresponding path program 1 times [2022-11-03 01:56:53,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:53,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518322322] [2022-11-03 01:56:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:53,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:53,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:53,032 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:53,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-03 01:56:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:53,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:53,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:53,800 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:53,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:53,986 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:53,986 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:53,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518322322] [2022-11-03 01:56:53,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518322322] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:53,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [677226547] [2022-11-03 01:56:53,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:53,986 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:53,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:53,988 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:53,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Waiting until timeout for monitored process [2022-11-03 01:56:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:54,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:56:54,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:56:55,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:55,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [677226547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:55,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:55,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 01:56:55,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313507174] [2022-11-03 01:56:55,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:55,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:56:55,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:55,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:56:55,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:56:55,066 INFO L87 Difference]: Start difference. First operand 848 states and 1079 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:55,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:55,416 INFO L93 Difference]: Finished difference Result 1517 states and 1953 transitions. [2022-11-03 01:56:55,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:56:55,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 01:56:55,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:55,418 INFO L225 Difference]: With dead ends: 1517 [2022-11-03 01:56:55,418 INFO L226 Difference]: Without dead ends: 1111 [2022-11-03 01:56:55,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:56:55,419 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 439 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:55,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1059 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:56:55,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2022-11-03 01:56:55,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 852. [2022-11-03 01:56:55,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 835 states have (on average 1.2586826347305389) internal successors, (1051), 835 states have internal predecessors, (1051), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:56:55,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1081 transitions. [2022-11-03 01:56:55,480 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1081 transitions. Word has length 218 [2022-11-03 01:56:55,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:55,480 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1081 transitions. [2022-11-03 01:56:55,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 01:56:55,481 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1081 transitions. [2022-11-03 01:56:55,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 01:56:55,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:55,483 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:56:55,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Ended with exit code 0 [2022-11-03 01:56:55,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:55,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:55,887 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:55,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:55,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1393327213, now seen corresponding path program 1 times [2022-11-03 01:56:55,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:56:55,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822308287] [2022-11-03 01:56:55,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:55,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:56:55,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:56:55,889 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:56:55,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-03 01:56:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:56,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:56,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:56,661 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:56,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:56,826 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:56:56,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822308287] [2022-11-03 01:56:56,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822308287] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:56,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1953701221] [2022-11-03 01:56:56,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:56,827 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:56:56,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:56:56,828 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:56:56,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Waiting until timeout for monitored process [2022-11-03 01:56:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:58,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 01:56:58,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:58,151 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:58,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:58,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1953701221] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:58,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523462928] [2022-11-03 01:56:58,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:58,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:56:58,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:56:58,237 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:56:58,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2022-11-03 01:56:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:58,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:56:58,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:58,876 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:56:58,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:59,100 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 01:56:59,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523462928] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:59,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 01:56:59,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 8, 10, 10] total 24 [2022-11-03 01:56:59,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26352583] [2022-11-03 01:56:59,101 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 01:56:59,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-03 01:56:59,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:56:59,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-03 01:56:59,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2022-11-03 01:56:59,103 INFO L87 Difference]: Start difference. First operand 852 states and 1081 transitions. Second operand has 24 states, 19 states have (on average 9.894736842105264) internal successors, (188), 24 states have internal predecessors, (188), 11 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 6 states have call predecessors, (21), 11 states have call successors, (21) [2022-11-03 01:57:00,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:00,921 INFO L93 Difference]: Finished difference Result 1273 states and 1622 transitions. [2022-11-03 01:57:00,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 01:57:00,921 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 9.894736842105264) internal successors, (188), 24 states have internal predecessors, (188), 11 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 6 states have call predecessors, (21), 11 states have call successors, (21) Word has length 218 [2022-11-03 01:57:00,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:00,922 INFO L225 Difference]: With dead ends: 1273 [2022-11-03 01:57:00,922 INFO L226 Difference]: Without dead ends: 660 [2022-11-03 01:57:00,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1318 GetRequests, 1276 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=334, Invalid=1226, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 01:57:00,923 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 2743 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:00,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2743 Valid, 1732 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 01:57:00,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-11-03 01:57:01,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 650. [2022-11-03 01:57:01,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 633 states have (on average 1.287519747235387) internal successors, (815), 633 states have internal predecessors, (815), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:57:01,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 845 transitions. [2022-11-03 01:57:01,001 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 845 transitions. Word has length 218 [2022-11-03 01:57:01,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:01,002 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 845 transitions. [2022-11-03 01:57:01,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 9.894736842105264) internal successors, (188), 24 states have internal predecessors, (188), 11 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 6 states have call predecessors, (21), 11 states have call successors, (21) [2022-11-03 01:57:01,002 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 845 transitions. [2022-11-03 01:57:01,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 01:57:01,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:01,004 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:57:01,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Forceful destruction successful, exit code 0 [2022-11-03 01:57:01,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2022-11-03 01:57:01,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Ended with exit code 0 [2022-11-03 01:57:01,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:57:01,605 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:57:01,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:01,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1434225572, now seen corresponding path program 1 times [2022-11-03 01:57:01,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:57:01,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410862010] [2022-11-03 01:57:01,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:01,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:57:01,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:57:01,607 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:57:01,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-11-03 01:57:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:02,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 01:57:02,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:57:03,498 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 14 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-03 01:57:03,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:57:03,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:57:03,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410862010] [2022-11-03 01:57:03,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410862010] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:57:03,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1504252216] [2022-11-03 01:57:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:03,568 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:57:03,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:57:03,569 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:57:03,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (91)] Waiting until timeout for monitored process [2022-11-03 01:57:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:05,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 01:57:05,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:57:06,550 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 261 proven. 50 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 01:57:06,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:57:06,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1504252216] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:57:06,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168481773] [2022-11-03 01:57:06,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:06,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:57:06,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:57:06,881 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:57:06,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2022-11-03 01:57:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:07,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:57:07,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:57:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 19 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-03 01:57:09,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:57:09,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168481773] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:57:09,329 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:57:09,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19 [2022-11-03 01:57:09,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075390281] [2022-11-03 01:57:09,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:57:09,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-03 01:57:09,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:57:09,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-03 01:57:09,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2022-11-03 01:57:09,332 INFO L87 Difference]: Start difference. First operand 650 states and 845 transitions. Second operand has 19 states, 19 states have (on average 35.0) internal successors, (665), 19 states have internal predecessors, (665), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 01:57:35,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:35,505 INFO L93 Difference]: Finished difference Result 7222 states and 9506 transitions. [2022-11-03 01:57:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2022-11-03 01:57:35,505 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 35.0) internal successors, (665), 19 states have internal predecessors, (665), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 01:57:35,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:35,511 INFO L225 Difference]: With dead ends: 7222 [2022-11-03 01:57:35,511 INFO L226 Difference]: Without dead ends: 6636 [2022-11-03 01:57:35,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1874 GetRequests, 1691 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11833 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=6652, Invalid=27388, Unknown=0, NotChecked=0, Total=34040 [2022-11-03 01:57:35,517 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 10663 mSDsluCounter, 13956 mSDsCounter, 0 mSdLazyCounter, 4551 mSolverCounterSat, 1069 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10663 SdHoareTripleChecker+Valid, 15562 SdHoareTripleChecker+Invalid, 5620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1069 IncrementalHoareTripleChecker+Valid, 4551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:35,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10663 Valid, 15562 Invalid, 5620 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1069 Valid, 4551 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-03 01:57:35,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6636 states. [2022-11-03 01:57:35,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6636 to 739. [2022-11-03 01:57:35,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 719 states have (on average 1.2920723226703754) internal successors, (929), 719 states have internal predecessors, (929), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 01:57:35,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 965 transitions. [2022-11-03 01:57:35,687 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 965 transitions. Word has length 373 [2022-11-03 01:57:35,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:35,687 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 965 transitions. [2022-11-03 01:57:35,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 35.0) internal successors, (665), 19 states have internal predecessors, (665), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 01:57:35,688 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 965 transitions. [2022-11-03 01:57:35,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 01:57:35,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:35,691 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:57:35,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2022-11-03 01:57:35,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (90)] Ended with exit code 0 [2022-11-03 01:57:36,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (91)] Ended with exit code 0 [2022-11-03 01:57:36,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:57:36,316 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:57:36,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:36,316 INFO L85 PathProgramCache]: Analyzing trace with hash -674592030, now seen corresponding path program 1 times [2022-11-03 01:57:36,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:57:36,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930926332] [2022-11-03 01:57:36,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:36,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:57:36,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:57:36,319 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:57:36,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2022-11-03 01:57:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:37,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 01:57:37,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:57:38,170 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 18 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-03 01:57:38,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:57:38,232 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:57:38,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930926332] [2022-11-03 01:57:38,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930926332] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:57:38,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [863961915] [2022-11-03 01:57:38,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:38,233 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:57:38,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:57:38,239 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:57:38,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (94)] Waiting until timeout for monitored process [2022-11-03 01:57:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:40,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 01:57:40,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:57:41,684 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 253 proven. 58 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 01:57:41,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:57:42,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [863961915] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:57:42,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168171404] [2022-11-03 01:57:42,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:42,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:57:42,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:57:42,107 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:57:42,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2022-11-03 01:57:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:42,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:57:42,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:57:44,468 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 27 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-03 01:57:44,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:57:44,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168171404] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:57:44,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:57:44,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 01:57:44,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370417925] [2022-11-03 01:57:44,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:57:44,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 01:57:44,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:57:44,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 01:57:44,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 01:57:44,737 INFO L87 Difference]: Start difference. First operand 739 states and 965 transitions. Second operand has 20 states, 20 states have (on average 34.15) internal successors, (683), 20 states have internal predecessors, (683), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 01:58:10,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:58:10,255 INFO L93 Difference]: Finished difference Result 8324 states and 10975 transitions. [2022-11-03 01:58:10,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-11-03 01:58:10,256 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.15) internal successors, (683), 20 states have internal predecessors, (683), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 01:58:10,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:58:10,263 INFO L225 Difference]: With dead ends: 8324 [2022-11-03 01:58:10,263 INFO L226 Difference]: Without dead ends: 7659 [2022-11-03 01:58:10,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1869 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11475 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=6603, Invalid=26339, Unknown=0, NotChecked=0, Total=32942 [2022-11-03 01:58:10,269 INFO L413 NwaCegarLoop]: 1319 mSDtfsCounter, 13076 mSDsluCounter, 13135 mSDsCounter, 0 mSdLazyCounter, 4131 mSolverCounterSat, 1166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13076 SdHoareTripleChecker+Valid, 14454 SdHoareTripleChecker+Invalid, 5297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1166 IncrementalHoareTripleChecker+Valid, 4131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:58:10,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13076 Valid, 14454 Invalid, 5297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1166 Valid, 4131 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-03 01:58:10,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2022-11-03 01:58:10,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 773. [2022-11-03 01:58:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 753 states have (on average 1.2881806108897742) internal successors, (970), 753 states have internal predecessors, (970), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 01:58:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1006 transitions. [2022-11-03 01:58:10,399 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1006 transitions. Word has length 373 [2022-11-03 01:58:10,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:58:10,399 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1006 transitions. [2022-11-03 01:58:10,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.15) internal successors, (683), 20 states have internal predecessors, (683), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 01:58:10,400 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1006 transitions. [2022-11-03 01:58:10,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 01:58:10,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:58:10,402 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:58:10,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2022-11-03 01:58:10,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (93)] Ended with exit code 0 [2022-11-03 01:58:10,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (94)] Ended with exit code 0 [2022-11-03 01:58:11,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:58:11,003 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:58:11,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:58:11,003 INFO L85 PathProgramCache]: Analyzing trace with hash 751728232, now seen corresponding path program 1 times [2022-11-03 01:58:11,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:58:11,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280728874] [2022-11-03 01:58:11,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:11,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:58:11,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:58:11,006 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:58:11,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2022-11-03 01:58:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:12,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 01:58:12,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:58:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 20 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-03 01:58:12,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:58:12,996 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:58:12,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280728874] [2022-11-03 01:58:12,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280728874] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:58:12,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1696346452] [2022-11-03 01:58:12,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:12,996 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:58:12,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:58:12,997 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:58:12,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (97)] Waiting until timeout for monitored process [2022-11-03 01:58:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:14,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 01:58:14,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:58:16,502 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 249 proven. 62 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 01:58:16,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:58:16,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1696346452] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:58:16,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324000935] [2022-11-03 01:58:16,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:16,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:58:16,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:58:16,939 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:58:16,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2022-11-03 01:58:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:17,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:58:17,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:58:19,208 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 31 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-03 01:58:19,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:58:19,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324000935] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:58:19,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:58:19,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 01:58:19,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611005133] [2022-11-03 01:58:19,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:58:19,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 01:58:19,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:58:19,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 01:58:19,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 01:58:19,456 INFO L87 Difference]: Start difference. First operand 773 states and 1006 transitions. Second operand has 20 states, 20 states have (on average 34.55) internal successors, (691), 20 states have internal predecessors, (691), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 01:58:44,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:58:44,605 INFO L93 Difference]: Finished difference Result 8412 states and 11014 transitions. [2022-11-03 01:58:44,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-11-03 01:58:44,606 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.55) internal successors, (691), 20 states have internal predecessors, (691), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 01:58:44,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:58:44,612 INFO L225 Difference]: With dead ends: 8412 [2022-11-03 01:58:44,612 INFO L226 Difference]: Without dead ends: 7725 [2022-11-03 01:58:44,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1870 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11575 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=6661, Invalid=26645, Unknown=0, NotChecked=0, Total=33306 [2022-11-03 01:58:44,617 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 13544 mSDsluCounter, 13126 mSDsCounter, 0 mSdLazyCounter, 4385 mSolverCounterSat, 1207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13544 SdHoareTripleChecker+Valid, 14488 SdHoareTripleChecker+Invalid, 5592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 4385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:58:44,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13544 Valid, 14488 Invalid, 5592 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1207 Valid, 4385 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-03 01:58:44,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7725 states. [2022-11-03 01:58:44,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7725 to 793. [2022-11-03 01:58:44,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 773 states have (on average 1.279430789133247) internal successors, (989), 773 states have internal predecessors, (989), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 01:58:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1025 transitions. [2022-11-03 01:58:44,855 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1025 transitions. Word has length 373 [2022-11-03 01:58:44,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:58:44,855 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1025 transitions. [2022-11-03 01:58:44,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.55) internal successors, (691), 20 states have internal predecessors, (691), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 01:58:44,856 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1025 transitions. [2022-11-03 01:58:44,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 01:58:44,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:58:44,858 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:58:44,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (97)] Forceful destruction successful, exit code 0 [2022-11-03 01:58:45,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2022-11-03 01:58:45,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (96)] Ended with exit code 0 [2022-11-03 01:58:45,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:58:45,476 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:58:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:58:45,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1668840558, now seen corresponding path program 1 times [2022-11-03 01:58:45,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:58:45,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288983461] [2022-11-03 01:58:45,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:45,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:58:45,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:58:45,479 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:58:45,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2022-11-03 01:58:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:46,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 01:58:46,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:58:47,328 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 22 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-03 01:58:47,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:58:47,394 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:58:47,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288983461] [2022-11-03 01:58:47,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288983461] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:58:47,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1876423802] [2022-11-03 01:58:47,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:47,395 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:58:47,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:58:47,396 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:58:47,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (100)] Waiting until timeout for monitored process [2022-11-03 01:58:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:49,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 01:58:49,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:58:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 245 proven. 66 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 01:58:50,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:58:51,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1876423802] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:58:51,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206442241] [2022-11-03 01:58:51,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:51,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:58:51,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:58:51,343 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:58:51,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2022-11-03 01:58:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:52,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 01:58:52,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:58:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 17 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-03 01:58:53,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:58:53,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206442241] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:58:53,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:58:53,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 01:58:53,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220821955] [2022-11-03 01:58:53,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:58:53,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 01:58:53,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:58:53,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 01:58:53,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 01:58:53,509 INFO L87 Difference]: Start difference. First operand 793 states and 1025 transitions. Second operand has 20 states, 20 states have (on average 34.05) internal successors, (681), 20 states have internal predecessors, (681), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 01:59:21,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:59:21,649 INFO L93 Difference]: Finished difference Result 8336 states and 10877 transitions. [2022-11-03 01:59:21,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-11-03 01:59:21,649 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.05) internal successors, (681), 20 states have internal predecessors, (681), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 01:59:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:59:21,655 INFO L225 Difference]: With dead ends: 8336 [2022-11-03 01:59:21,655 INFO L226 Difference]: Without dead ends: 7619 [2022-11-03 01:59:21,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1870 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11617 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=6661, Invalid=26645, Unknown=0, NotChecked=0, Total=33306 [2022-11-03 01:59:21,658 INFO L413 NwaCegarLoop]: 1169 mSDtfsCounter, 15258 mSDsluCounter, 12391 mSDsCounter, 0 mSdLazyCounter, 3886 mSolverCounterSat, 1302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15258 SdHoareTripleChecker+Valid, 13560 SdHoareTripleChecker+Invalid, 5188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1302 IncrementalHoareTripleChecker+Valid, 3886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:21,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15258 Valid, 13560 Invalid, 5188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1302 Valid, 3886 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-03 01:59:21,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7619 states. [2022-11-03 01:59:21,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7619 to 807. [2022-11-03 01:59:21,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 787 states have (on average 1.266836086404066) internal successors, (997), 787 states have internal predecessors, (997), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 01:59:21,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1033 transitions. [2022-11-03 01:59:21,803 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1033 transitions. Word has length 373 [2022-11-03 01:59:21,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:59:21,803 INFO L495 AbstractCegarLoop]: Abstraction has 807 states and 1033 transitions. [2022-11-03 01:59:21,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.05) internal successors, (681), 20 states have internal predecessors, (681), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 01:59:21,803 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1033 transitions. [2022-11-03 01:59:21,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 01:59:21,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:59:21,806 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:59:21,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (100)] Ended with exit code 0 [2022-11-03 01:59:22,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (99)] Ended with exit code 0 [2022-11-03 01:59:22,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2022-11-03 01:59:22,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:59:22,417 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:59:22,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:59:22,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1657315212, now seen corresponding path program 1 times [2022-11-03 01:59:22,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:59:22,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770502251] [2022-11-03 01:59:22,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:22,419 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:59:22,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:59:22,420 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:59:22,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2022-11-03 01:59:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:23,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 01:59:23,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:59:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 24 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-03 01:59:24,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:59:24,355 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:59:24,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770502251] [2022-11-03 01:59:24,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770502251] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:59:24,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [77421301] [2022-11-03 01:59:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:24,356 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:59:24,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:59:24,359 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:59:24,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (103)] Waiting until timeout for monitored process [2022-11-03 01:59:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:26,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 01:59:26,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:59:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 237 proven. 74 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 01:59:27,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:59:28,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [77421301] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:59:28,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895794587] [2022-11-03 01:59:28,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:28,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:59:28,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:59:28,455 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:59:28,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2022-11-03 01:59:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:29,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 01:59:29,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:59:30,309 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 15 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-03 01:59:30,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:59:30,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895794587] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:59:30,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:59:30,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 01:59:30,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101425783] [2022-11-03 01:59:30,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:59:30,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 01:59:30,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:59:30,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 01:59:30,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2022-11-03 01:59:30,516 INFO L87 Difference]: Start difference. First operand 807 states and 1033 transitions. Second operand has 20 states, 20 states have (on average 34.35) internal successors, (687), 20 states have internal predecessors, (687), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 01:59:44,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:59:44,421 INFO L93 Difference]: Finished difference Result 5569 states and 7191 transitions. [2022-11-03 01:59:44,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-03 01:59:44,422 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.35) internal successors, (687), 20 states have internal predecessors, (687), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 01:59:44,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:59:44,426 INFO L225 Difference]: With dead ends: 5569 [2022-11-03 01:59:44,426 INFO L226 Difference]: Without dead ends: 4838 [2022-11-03 01:59:44,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1806 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3918 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=3215, Invalid=10827, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 01:59:44,428 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 14095 mSDsluCounter, 9112 mSDsCounter, 0 mSdLazyCounter, 2741 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14095 SdHoareTripleChecker+Valid, 9857 SdHoareTripleChecker+Invalid, 3617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 2741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:44,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14095 Valid, 9857 Invalid, 3617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 2741 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-03 01:59:44,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2022-11-03 01:59:44,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 829. [2022-11-03 01:59:44,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 809 states have (on average 1.2546353522867737) internal successors, (1015), 809 states have internal predecessors, (1015), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 01:59:44,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1051 transitions. [2022-11-03 01:59:44,586 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1051 transitions. Word has length 373 [2022-11-03 01:59:44,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:59:44,586 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1051 transitions. [2022-11-03 01:59:44,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.35) internal successors, (687), 20 states have internal predecessors, (687), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 01:59:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1051 transitions. [2022-11-03 01:59:44,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 01:59:44,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:59:44,588 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 01:59:44,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2022-11-03 01:59:44,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (103)] Forceful destruction successful, exit code 0 [2022-11-03 01:59:45,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (102)] Ended with exit code 0 [2022-11-03 01:59:45,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:59:45,189 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:59:45,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:59:45,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1260607878, now seen corresponding path program 1 times [2022-11-03 01:59:45,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:59:45,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770267700] [2022-11-03 01:59:45,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:45,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:59:45,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:59:45,192 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:59:45,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2022-11-03 01:59:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:46,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 01:59:46,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:59:47,134 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 32 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-03 01:59:47,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:59:47,216 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:59:47,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770267700] [2022-11-03 01:59:47,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770267700] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:59:47,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [627768193] [2022-11-03 01:59:47,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:47,217 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:59:47,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:59:47,217 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:59:47,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (106)] Waiting until timeout for monitored process [2022-11-03 01:59:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:49,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 01:59:49,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:59:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 233 proven. 78 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 01:59:50,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:59:51,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [627768193] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:59:51,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490750509] [2022-11-03 01:59:51,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:51,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:59:51,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:59:51,527 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:59:51,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2022-11-03 01:59:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:52,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:59:52,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:59:53,953 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 29 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-03 01:59:53,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:59:54,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490750509] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:59:54,237 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:59:54,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 01:59:54,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476439065] [2022-11-03 01:59:54,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:59:54,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 01:59:54,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:59:54,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 01:59:54,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2022-11-03 01:59:54,244 INFO L87 Difference]: Start difference. First operand 829 states and 1051 transitions. Second operand has 20 states, 20 states have (on average 35.55) internal successors, (711), 20 states have internal predecessors, (711), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 02:00:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:11,063 INFO L93 Difference]: Finished difference Result 5881 states and 7484 transitions. [2022-11-03 02:00:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-03 02:00:11,064 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 35.55) internal successors, (711), 20 states have internal predecessors, (711), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 02:00:11,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:11,068 INFO L225 Difference]: With dead ends: 5881 [2022-11-03 02:00:11,068 INFO L226 Difference]: Without dead ends: 5142 [2022-11-03 02:00:11,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1806 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3929 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=3215, Invalid=10827, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 02:00:11,070 INFO L413 NwaCegarLoop]: 1204 mSDtfsCounter, 12353 mSDsluCounter, 10437 mSDsCounter, 0 mSdLazyCounter, 3258 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12353 SdHoareTripleChecker+Valid, 11641 SdHoareTripleChecker+Invalid, 4102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 3258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:11,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12353 Valid, 11641 Invalid, 4102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 3258 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 02:00:11,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2022-11-03 02:00:11,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 893. [2022-11-03 02:00:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 873 states have (on average 1.2508591065292096) internal successors, (1092), 873 states have internal predecessors, (1092), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 02:00:11,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1128 transitions. [2022-11-03 02:00:11,274 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1128 transitions. Word has length 373 [2022-11-03 02:00:11,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:11,275 INFO L495 AbstractCegarLoop]: Abstraction has 893 states and 1128 transitions. [2022-11-03 02:00:11,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 35.55) internal successors, (711), 20 states have internal predecessors, (711), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 02:00:11,275 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1128 transitions. [2022-11-03 02:00:11,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:00:11,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:11,278 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:00:11,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (106)] Forceful destruction successful, exit code 0 [2022-11-03 02:00:11,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Forceful destruction successful, exit code 0 [2022-11-03 02:00:11,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (105)] Ended with exit code 0 [2022-11-03 02:00:11,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:00:11,879 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:11,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:11,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1203997440, now seen corresponding path program 1 times [2022-11-03 02:00:11,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:00:11,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599274076] [2022-11-03 02:00:11,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:11,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:00:11,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:00:11,882 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:00:11,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2022-11-03 02:00:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:12,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:00:12,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:00:13,850 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-03 02:00:13,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:00:13,943 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:00:13,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599274076] [2022-11-03 02:00:13,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599274076] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:00:13,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [311640310] [2022-11-03 02:00:13,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:13,944 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:00:13,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:00:13,944 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:00:13,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (109)] Waiting until timeout for monitored process [2022-11-03 02:00:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:15,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:00:15,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:00:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 229 proven. 82 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:00:17,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:00:18,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [311640310] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:00:18,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207856624] [2022-11-03 02:00:18,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:18,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:00:18,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:00:18,562 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:00:18,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2022-11-03 02:00:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:19,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:00:19,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:00:20,828 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-03 02:00:20,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:00:21,520 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 191 proven. 36 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-03 02:00:21,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207856624] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:00:21,520 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-03 02:00:21,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9, 9] total 25 [2022-11-03 02:00:21,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645269134] [2022-11-03 02:00:21,521 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-03 02:00:21,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 02:00:21,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:00:21,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 02:00:21,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2022-11-03 02:00:21,523 INFO L87 Difference]: Start difference. First operand 893 states and 1128 transitions. Second operand has 25 states, 25 states have (on average 33.68) internal successors, (842), 25 states have internal predecessors, (842), 9 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2022-11-03 02:00:29,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:29,313 INFO L93 Difference]: Finished difference Result 4579 states and 5770 transitions. [2022-11-03 02:00:29,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-03 02:00:29,314 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 33.68) internal successors, (842), 25 states have internal predecessors, (842), 9 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) Word has length 373 [2022-11-03 02:00:29,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:29,317 INFO L225 Difference]: With dead ends: 4579 [2022-11-03 02:00:29,317 INFO L226 Difference]: Without dead ends: 4001 [2022-11-03 02:00:29,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1944 GetRequests, 1860 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1667 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1720, Invalid=5590, Unknown=0, NotChecked=0, Total=7310 [2022-11-03 02:00:29,319 INFO L413 NwaCegarLoop]: 1067 mSDtfsCounter, 6200 mSDsluCounter, 9585 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6200 SdHoareTripleChecker+Valid, 10652 SdHoareTripleChecker+Invalid, 3174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:29,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6200 Valid, 10652 Invalid, 3174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-03 02:00:29,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2022-11-03 02:00:29,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 909. [2022-11-03 02:00:29,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 889 states have (on average 1.247469066366704) internal successors, (1109), 889 states have internal predecessors, (1109), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 02:00:29,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1145 transitions. [2022-11-03 02:00:29,529 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1145 transitions. Word has length 373 [2022-11-03 02:00:29,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:29,529 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1145 transitions. [2022-11-03 02:00:29,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 33.68) internal successors, (842), 25 states have internal predecessors, (842), 9 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2022-11-03 02:00:29,530 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1145 transitions. [2022-11-03 02:00:29,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:00:29,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:29,533 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:00:29,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (109)] Forceful destruction successful, exit code 0 [2022-11-03 02:00:29,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2022-11-03 02:00:29,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (108)] Ended with exit code 0 [2022-11-03 02:00:30,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:00:30,147 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:30,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:30,148 INFO L85 PathProgramCache]: Analyzing trace with hash -2139075964, now seen corresponding path program 1 times [2022-11-03 02:00:30,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:00:30,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908781562] [2022-11-03 02:00:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:30,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:00:30,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:00:30,150 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:00:30,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (111)] Waiting until timeout for monitored process [2022-11-03 02:00:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:31,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:00:31,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:00:33,322 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 225 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:00:33,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:00:33,910 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:00:33,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908781562] [2022-11-03 02:00:33,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908781562] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:00:33,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [55669275] [2022-11-03 02:00:33,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:33,911 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:00:33,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:00:33,912 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:00:33,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (112)] Waiting until timeout for monitored process [2022-11-03 02:00:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:35,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:00:35,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:00:37,948 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 225 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:00:37,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:00:38,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [55669275] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:00:38,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89412766] [2022-11-03 02:00:38,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:38,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:00:38,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:00:38,486 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:00:38,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2022-11-03 02:00:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:39,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 02:00:39,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:00:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:00:41,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:00:41,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89412766] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:00:41,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:00:41,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 02:00:41,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899008925] [2022-11-03 02:00:41,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:00:41,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:00:41,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:00:41,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:00:41,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:00:41,325 INFO L87 Difference]: Start difference. First operand 909 states and 1145 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 02:00:46,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:46,451 INFO L93 Difference]: Finished difference Result 3575 states and 4503 transitions. [2022-11-03 02:00:46,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-03 02:00:46,452 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 02:00:46,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:46,455 INFO L225 Difference]: With dead ends: 3575 [2022-11-03 02:00:46,455 INFO L226 Difference]: Without dead ends: 3053 [2022-11-03 02:00:46,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1621 GetRequests, 1543 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=990, Invalid=5172, Unknown=0, NotChecked=0, Total=6162 [2022-11-03 02:00:46,456 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 2376 mSDsluCounter, 9853 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 10589 SdHoareTripleChecker+Invalid, 2579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1137 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:46,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2382 Valid, 10589 Invalid, 2579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1316 Invalid, 0 Unknown, 1137 Unchecked, 2.1s Time] [2022-11-03 02:00:46,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2022-11-03 02:00:46,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 1255. [2022-11-03 02:00:46,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1223 states have (on average 1.2379394930498773) internal successors, (1514), 1223 states have internal predecessors, (1514), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:00:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1574 transitions. [2022-11-03 02:00:46,695 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1574 transitions. Word has length 373 [2022-11-03 02:00:46,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:46,695 INFO L495 AbstractCegarLoop]: Abstraction has 1255 states and 1574 transitions. [2022-11-03 02:00:46,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 02:00:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1574 transitions. [2022-11-03 02:00:46,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:00:46,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:46,698 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:00:46,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Forceful destruction successful, exit code 0 [2022-11-03 02:00:46,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (111)] Ended with exit code 0 [2022-11-03 02:00:47,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (112)] Ended with exit code 0 [2022-11-03 02:00:47,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:00:47,299 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:47,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:47,299 INFO L85 PathProgramCache]: Analyzing trace with hash 873719046, now seen corresponding path program 1 times [2022-11-03 02:00:47,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:00:47,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461989112] [2022-11-03 02:00:47,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:47,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:00:47,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:00:47,301 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:00:47,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (114)] Waiting until timeout for monitored process [2022-11-03 02:00:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:48,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:00:48,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:00:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 221 proven. 90 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:00:50,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:00:50,966 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:00:50,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461989112] [2022-11-03 02:00:50,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461989112] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:00:50,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [214104972] [2022-11-03 02:00:50,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:50,967 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:00:50,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:00:50,971 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:00:50,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (115)] Waiting until timeout for monitored process [2022-11-03 02:00:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:52,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:00:52,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:00:55,157 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 221 proven. 90 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:00:55,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:00:55,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [214104972] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:00:55,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736097024] [2022-11-03 02:00:55,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:55,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:00:55,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:00:55,753 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:00:55,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2022-11-03 02:00:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:56,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 02:00:56,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:00:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:00:58,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:00:58,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736097024] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:00:58,607 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:00:58,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 02:00:58,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284032499] [2022-11-03 02:00:58,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:00:58,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:00:58,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:00:58,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:00:58,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:00:58,609 INFO L87 Difference]: Start difference. First operand 1255 states and 1574 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 02:01:02,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:01:02,971 INFO L93 Difference]: Finished difference Result 3562 states and 4498 transitions. [2022-11-03 02:01:02,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-03 02:01:02,972 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 02:01:02,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:01:02,974 INFO L225 Difference]: With dead ends: 3562 [2022-11-03 02:01:02,974 INFO L226 Difference]: Without dead ends: 2702 [2022-11-03 02:01:02,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1607 GetRequests, 1540 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=844, Invalid=3712, Unknown=0, NotChecked=0, Total=4556 [2022-11-03 02:01:02,976 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 2616 mSDsluCounter, 8485 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2622 SdHoareTripleChecker+Valid, 9011 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 704 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:01:02,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2622 Valid, 9011 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1032 Invalid, 0 Unknown, 704 Unchecked, 1.8s Time] [2022-11-03 02:01:02,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2022-11-03 02:01:03,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 1263. [2022-11-03 02:01:03,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1231 states have (on average 1.2380178716490657) internal successors, (1524), 1231 states have internal predecessors, (1524), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:01:03,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1584 transitions. [2022-11-03 02:01:03,234 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1584 transitions. Word has length 373 [2022-11-03 02:01:03,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:01:03,234 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 1584 transitions. [2022-11-03 02:01:03,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 02:01:03,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1584 transitions. [2022-11-03 02:01:03,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:01:03,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:01:03,237 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:01:03,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2022-11-03 02:01:03,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (114)] Ended with exit code 0 [2022-11-03 02:01:03,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (115)] Forceful destruction successful, exit code 0 [2022-11-03 02:01:03,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:01:03,851 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:01:03,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:01:03,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1492316024, now seen corresponding path program 1 times [2022-11-03 02:01:03,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:01:03,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191299438] [2022-11-03 02:01:03,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:03,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:01:03,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:01:03,854 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:01:03,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (117)] Waiting until timeout for monitored process [2022-11-03 02:01:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:04,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:01:04,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:01:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 217 proven. 94 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:01:07,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:01:07,778 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:01:07,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191299438] [2022-11-03 02:01:07,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191299438] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:01:07,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [169543599] [2022-11-03 02:01:07,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:07,779 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:01:07,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:01:07,781 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:01:07,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (118)] Waiting until timeout for monitored process [2022-11-03 02:01:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:09,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:01:09,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:01:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 217 proven. 94 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:01:12,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:01:12,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [169543599] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:01:12,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11715911] [2022-11-03 02:01:12,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:12,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:01:12,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:01:12,625 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:01:12,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2022-11-03 02:01:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:13,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 02:01:13,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:01:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:01:15,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:01:15,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11715911] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:01:15,534 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:01:15,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 02:01:15,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125441596] [2022-11-03 02:01:15,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:01:15,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:01:15,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:01:15,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:01:15,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:01:15,537 INFO L87 Difference]: Start difference. First operand 1263 states and 1584 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 02:01:20,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:01:20,086 INFO L93 Difference]: Finished difference Result 3209 states and 4053 transitions. [2022-11-03 02:01:20,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-03 02:01:20,088 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 02:01:20,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:01:20,091 INFO L225 Difference]: With dead ends: 3209 [2022-11-03 02:01:20,091 INFO L226 Difference]: Without dead ends: 2687 [2022-11-03 02:01:20,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1614 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1122 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=915, Invalid=4487, Unknown=0, NotChecked=0, Total=5402 [2022-11-03 02:01:20,092 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 2369 mSDsluCounter, 8737 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 9232 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 836 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:01:20,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2375 Valid, 9232 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1046 Invalid, 0 Unknown, 836 Unchecked, 1.8s Time] [2022-11-03 02:01:20,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2022-11-03 02:01:20,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1267. [2022-11-03 02:01:20,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 1235 states have (on average 1.237246963562753) internal successors, (1528), 1235 states have internal predecessors, (1528), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:01:20,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1588 transitions. [2022-11-03 02:01:20,331 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1588 transitions. Word has length 373 [2022-11-03 02:01:20,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:01:20,331 INFO L495 AbstractCegarLoop]: Abstraction has 1267 states and 1588 transitions. [2022-11-03 02:01:20,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 02:01:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1588 transitions. [2022-11-03 02:01:20,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:01:20,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:01:20,333 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:01:20,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (117)] Ended with exit code 0 [2022-11-03 02:01:20,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Ended with exit code 0 [2022-11-03 02:01:20,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (118)] Forceful destruction successful, exit code 0 [2022-11-03 02:01:20,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:01:20,934 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:01:20,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:01:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1155288330, now seen corresponding path program 1 times [2022-11-03 02:01:20,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:01:20,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759036345] [2022-11-03 02:01:20,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:20,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:01:20,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:01:20,938 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:01:20,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (120)] Waiting until timeout for monitored process [2022-11-03 02:01:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:22,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:01:22,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:01:24,250 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 213 proven. 98 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:01:24,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:01:24,900 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:01:24,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759036345] [2022-11-03 02:01:24,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759036345] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:01:24,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [467967609] [2022-11-03 02:01:24,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:24,901 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:01:24,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:01:24,902 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:01:24,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (121)] Waiting until timeout for monitored process [2022-11-03 02:01:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:26,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:01:26,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:01:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 213 proven. 98 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:01:29,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:01:29,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [467967609] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:01:29,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738428257] [2022-11-03 02:01:29,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:29,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:01:29,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:01:29,783 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:01:29,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process [2022-11-03 02:01:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:30,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 02:01:30,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:01:32,676 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:01:32,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:01:32,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738428257] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:01:32,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:01:32,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 02:01:32,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953810126] [2022-11-03 02:01:32,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:01:32,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:01:32,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:01:32,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:01:32,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:01:32,760 INFO L87 Difference]: Start difference. First operand 1267 states and 1588 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 02:01:37,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:01:37,288 INFO L93 Difference]: Finished difference Result 3657 states and 4606 transitions. [2022-11-03 02:01:37,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-03 02:01:37,290 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 02:01:37,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:01:37,292 INFO L225 Difference]: With dead ends: 3657 [2022-11-03 02:01:37,293 INFO L226 Difference]: Without dead ends: 2797 [2022-11-03 02:01:37,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1610 GetRequests, 1539 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=836, Invalid=4276, Unknown=0, NotChecked=0, Total=5112 [2022-11-03 02:01:37,294 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 1774 mSDsluCounter, 9629 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 10263 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 944 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:01:37,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 10263 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1106 Invalid, 0 Unknown, 944 Unchecked, 1.9s Time] [2022-11-03 02:01:37,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2022-11-03 02:01:37,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1357. [2022-11-03 02:01:37,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1325 states have (on average 1.2256603773584906) internal successors, (1624), 1325 states have internal predecessors, (1624), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:01:37,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1684 transitions. [2022-11-03 02:01:37,542 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1684 transitions. Word has length 373 [2022-11-03 02:01:37,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:01:37,542 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1684 transitions. [2022-11-03 02:01:37,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 02:01:37,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1684 transitions. [2022-11-03 02:01:37,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:01:37,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:01:37,545 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:01:37,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Ended with exit code 0 [2022-11-03 02:01:37,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (121)] Ended with exit code 0 [2022-11-03 02:01:37,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (120)] Forceful destruction successful, exit code 0 [2022-11-03 02:01:38,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:01:38,146 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:01:38,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:01:38,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1257625884, now seen corresponding path program 1 times [2022-11-03 02:01:38,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:01:38,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103587122] [2022-11-03 02:01:38,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:38,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:01:38,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:01:38,149 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:01:38,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (123)] Waiting until timeout for monitored process [2022-11-03 02:01:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:39,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:01:39,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:01:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 205 proven. 106 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:01:41,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:01:42,112 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:01:42,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103587122] [2022-11-03 02:01:42,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103587122] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:01:42,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1341984587] [2022-11-03 02:01:42,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:42,113 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:01:42,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:01:42,113 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:01:42,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (124)] Waiting until timeout for monitored process [2022-11-03 02:01:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:44,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:01:44,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:01:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 205 proven. 106 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:01:46,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:01:47,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1341984587] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:01:47,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851373959] [2022-11-03 02:01:47,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:47,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:01:47,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:01:47,178 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:01:47,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Waiting until timeout for monitored process [2022-11-03 02:01:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:47,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:01:47,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:01:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 40 proven. 34 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 02:01:49,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:01:50,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851373959] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:01:50,104 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:01:50,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 02:01:50,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326626880] [2022-11-03 02:01:50,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:01:50,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:01:50,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:01:50,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:01:50,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 02:01:50,107 INFO L87 Difference]: Start difference. First operand 1357 states and 1684 transitions. Second operand has 13 states, 13 states have (on average 40.53846153846154) internal successors, (527), 13 states have internal predecessors, (527), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 02:01:58,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:01:58,369 INFO L93 Difference]: Finished difference Result 6566 states and 8258 transitions. [2022-11-03 02:01:58,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 02:01:58,369 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 40.53846153846154) internal successors, (527), 13 states have internal predecessors, (527), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 373 [2022-11-03 02:01:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:01:58,373 INFO L225 Difference]: With dead ends: 6566 [2022-11-03 02:01:58,373 INFO L226 Difference]: Without dead ends: 5297 [2022-11-03 02:01:58,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 02:01:58,375 INFO L413 NwaCegarLoop]: 1001 mSDtfsCounter, 3256 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3256 SdHoareTripleChecker+Valid, 5759 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:01:58,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3256 Valid, 5759 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 02:01:58,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2022-11-03 02:01:58,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 1431. [2022-11-03 02:01:58,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1399 states have (on average 1.2301644031451036) internal successors, (1721), 1399 states have internal predecessors, (1721), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:01:58,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1781 transitions. [2022-11-03 02:01:58,633 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1781 transitions. Word has length 373 [2022-11-03 02:01:58,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:01:58,634 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 1781 transitions. [2022-11-03 02:01:58,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 40.53846153846154) internal successors, (527), 13 states have internal predecessors, (527), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 02:01:58,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1781 transitions. [2022-11-03 02:01:58,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:01:58,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:01:58,636 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:01:58,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (124)] Ended with exit code 0 [2022-11-03 02:01:58,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (123)] Forceful destruction successful, exit code 0 [2022-11-03 02:01:59,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Ended with exit code 0 [2022-11-03 02:01:59,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,125 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:01:59,237 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:01:59,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:01:59,238 INFO L85 PathProgramCache]: Analyzing trace with hash -418616158, now seen corresponding path program 1 times [2022-11-03 02:01:59,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:01:59,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938866821] [2022-11-03 02:01:59,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:59,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:01:59,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:01:59,240 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:01:59,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (126)] Waiting until timeout for monitored process [2022-11-03 02:02:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:00,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:02:00,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 201 proven. 110 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:02:02,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:02:03,226 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:02:03,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938866821] [2022-11-03 02:02:03,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938866821] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:02:03,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [445428170] [2022-11-03 02:02:03,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:03,226 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:02:03,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:02:03,227 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:02:03,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (127)] Waiting until timeout for monitored process [2022-11-03 02:02:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:05,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:02:05,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 201 proven. 110 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:02:07,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:02:08,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [445428170] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:02:08,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644090136] [2022-11-03 02:02:08,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:08,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:02:08,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:02:08,581 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:02:08,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process [2022-11-03 02:02:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:09,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:02:09,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:12,444 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 20 proven. 54 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 02:02:12,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:02:12,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644090136] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:02:12,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:02:12,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 02:02:12,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026815578] [2022-11-03 02:02:12,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:02:12,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:02:12,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:02:12,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:02:12,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 02:02:12,657 INFO L87 Difference]: Start difference. First operand 1431 states and 1781 transitions. Second operand has 13 states, 13 states have (on average 41.23076923076923) internal successors, (536), 13 states have internal predecessors, (536), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 02:02:19,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:02:19,688 INFO L93 Difference]: Finished difference Result 6862 states and 8638 transitions. [2022-11-03 02:02:19,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 02:02:19,689 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 41.23076923076923) internal successors, (536), 13 states have internal predecessors, (536), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 373 [2022-11-03 02:02:19,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:02:19,693 INFO L225 Difference]: With dead ends: 6862 [2022-11-03 02:02:19,693 INFO L226 Difference]: Without dead ends: 5549 [2022-11-03 02:02:19,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 02:02:19,694 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 3026 mSDsluCounter, 4485 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3026 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:02:19,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3026 Valid, 5352 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 02:02:19,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5549 states. [2022-11-03 02:02:19,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 1485. [2022-11-03 02:02:19,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1453 states have (on average 1.2319339298004128) internal successors, (1790), 1453 states have internal predecessors, (1790), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:02:19,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1850 transitions. [2022-11-03 02:02:19,949 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1850 transitions. Word has length 373 [2022-11-03 02:02:19,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:02:19,950 INFO L495 AbstractCegarLoop]: Abstraction has 1485 states and 1850 transitions. [2022-11-03 02:02:19,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.23076923076923) internal successors, (536), 13 states have internal predecessors, (536), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 02:02:19,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1850 transitions. [2022-11-03 02:02:19,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:02:19,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:02:19,953 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:02:19,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Forceful destruction successful, exit code 0 [2022-11-03 02:02:20,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (127)] Ended with exit code 0 [2022-11-03 02:02:20,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (126)] Ended with exit code 0 [2022-11-03 02:02:20,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 128 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:02:20,553 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:02:20,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:02:20,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1190934498, now seen corresponding path program 1 times [2022-11-03 02:02:20,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:02:20,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800490776] [2022-11-03 02:02:20,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:20,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:02:20,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:02:20,556 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:02:20,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (129)] Waiting until timeout for monitored process [2022-11-03 02:02:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:21,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:02:21,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:23,264 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 197 proven. 114 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:02:23,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:02:24,026 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:02:24,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800490776] [2022-11-03 02:02:24,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800490776] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:02:24,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1669323211] [2022-11-03 02:02:24,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:24,027 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:02:24,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:02:24,028 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:02:24,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (130)] Waiting until timeout for monitored process [2022-11-03 02:02:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:26,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:02:26,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:27,667 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 197 proven. 114 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:02:27,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:02:28,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1669323211] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:02:28,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413232507] [2022-11-03 02:02:28,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:28,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:02:28,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:02:28,406 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:02:28,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Waiting until timeout for monitored process [2022-11-03 02:02:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:29,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:02:29,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:32,258 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 12 proven. 62 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 02:02:32,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:02:32,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413232507] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:02:32,481 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:02:32,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 02:02:32,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502058749] [2022-11-03 02:02:32,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:02:32,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:02:32,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:02:32,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:02:32,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 02:02:32,484 INFO L87 Difference]: Start difference. First operand 1485 states and 1850 transitions. Second operand has 13 states, 13 states have (on average 41.46153846153846) internal successors, (539), 13 states have internal predecessors, (539), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 02:02:39,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:02:39,341 INFO L93 Difference]: Finished difference Result 6970 states and 8737 transitions. [2022-11-03 02:02:39,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 02:02:39,341 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 41.46153846153846) internal successors, (539), 13 states have internal predecessors, (539), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 373 [2022-11-03 02:02:39,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:02:39,346 INFO L225 Difference]: With dead ends: 6970 [2022-11-03 02:02:39,346 INFO L226 Difference]: Without dead ends: 5623 [2022-11-03 02:02:39,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 02:02:39,348 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 3183 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 5265 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:02:39,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 5265 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-03 02:02:39,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5623 states. [2022-11-03 02:02:39,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5623 to 1455. [2022-11-03 02:02:39,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1423 states have (on average 1.2262825017568517) internal successors, (1745), 1423 states have internal predecessors, (1745), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:02:39,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1805 transitions. [2022-11-03 02:02:39,596 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1805 transitions. Word has length 373 [2022-11-03 02:02:39,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:02:39,596 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1805 transitions. [2022-11-03 02:02:39,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.46153846153846) internal successors, (539), 13 states have internal predecessors, (539), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 02:02:39,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1805 transitions. [2022-11-03 02:02:39,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:02:39,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:02:39,599 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:02:39,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (129)] Ended with exit code 0 [2022-11-03 02:02:39,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (130)] Forceful destruction successful, exit code 0 [2022-11-03 02:02:40,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Forceful destruction successful, exit code 0 [2022-11-03 02:02:40,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,130 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,131 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:02:40,201 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:02:40,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:02:40,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1558994142, now seen corresponding path program 1 times [2022-11-03 02:02:40,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:02:40,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457998210] [2022-11-03 02:02:40,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:40,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:02:40,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:02:40,205 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:02:40,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (132)] Waiting until timeout for monitored process [2022-11-03 02:02:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:41,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:02:41,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 68 proven. 171 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:02:44,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:02:44,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:02:44,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457998210] [2022-11-03 02:02:44,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457998210] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:02:44,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2004472328] [2022-11-03 02:02:44,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:44,179 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:02:44,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:02:44,180 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:02:44,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (133)] Waiting until timeout for monitored process [2022-11-03 02:02:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:46,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:02:46,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:49,599 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 60 proven. 179 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:02:49,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:02:49,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2004472328] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:02:49,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736349233] [2022-11-03 02:02:49,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:49,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:02:49,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:02:49,726 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:02:49,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Waiting until timeout for monitored process [2022-11-03 02:02:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:50,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:02:50,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 38 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 02:02:53,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:02:54,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736349233] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:02:54,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:02:54,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 02:02:54,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915324962] [2022-11-03 02:02:54,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:02:54,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 02:02:54,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:02:54,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 02:02:54,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:02:54,184 INFO L87 Difference]: Start difference. First operand 1455 states and 1805 transitions. Second operand has 35 states, 35 states have (on average 23.4) internal successors, (819), 35 states have internal predecessors, (819), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 02:03:10,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:10,363 INFO L93 Difference]: Finished difference Result 5461 states and 6966 transitions. [2022-11-03 02:03:10,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-03 02:03:10,364 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.4) internal successors, (819), 35 states have internal predecessors, (819), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 02:03:10,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:10,367 INFO L225 Difference]: With dead ends: 5461 [2022-11-03 02:03:10,367 INFO L226 Difference]: Without dead ends: 4110 [2022-11-03 02:03:10,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1333 GetRequests, 1216 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3158 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=2630, Invalid=11412, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 02:03:10,369 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 11172 mSDsluCounter, 19911 mSDsCounter, 0 mSdLazyCounter, 3173 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11172 SdHoareTripleChecker+Valid, 20722 SdHoareTripleChecker+Invalid, 7290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 3173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3709 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:10,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11172 Valid, 20722 Invalid, 7290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [408 Valid, 3173 Invalid, 0 Unknown, 3709 Unchecked, 5.4s Time] [2022-11-03 02:03:10,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2022-11-03 02:03:10,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 1479. [2022-11-03 02:03:10,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1447 states have (on average 1.2239115411195578) internal successors, (1771), 1447 states have internal predecessors, (1771), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:03:10,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1831 transitions. [2022-11-03 02:03:10,651 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1831 transitions. Word has length 373 [2022-11-03 02:03:10,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:10,651 INFO L495 AbstractCegarLoop]: Abstraction has 1479 states and 1831 transitions. [2022-11-03 02:03:10,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.4) internal successors, (819), 35 states have internal predecessors, (819), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 02:03:10,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1831 transitions. [2022-11-03 02:03:10,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:03:10,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:10,654 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:03:10,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (132)] Ended with exit code 0 [2022-11-03 02:03:10,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (133)] Forceful destruction successful, exit code 0 [2022-11-03 02:03:11,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Ended with exit code 0 [2022-11-03 02:03:11,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 132 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,133 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,134 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:03:11,255 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:11,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:11,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1579862814, now seen corresponding path program 1 times [2022-11-03 02:03:11,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:03:11,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150436234] [2022-11-03 02:03:11,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:11,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:03:11,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:03:11,258 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:03:11,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (135)] Waiting until timeout for monitored process [2022-11-03 02:03:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:12,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:03:12,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:03:15,172 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 56 proven. 183 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:03:15,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:03:15,266 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:03:15,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150436234] [2022-11-03 02:03:15,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150436234] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:03:15,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1659033094] [2022-11-03 02:03:15,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:15,266 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:03:15,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:03:15,267 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:03:15,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (136)] Waiting until timeout for monitored process [2022-11-03 02:03:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:17,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:03:17,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:03:20,596 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 48 proven. 191 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:03:20,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:03:20,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1659033094] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:03:20,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904961967] [2022-11-03 02:03:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:20,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:03:20,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:03:20,725 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:03:20,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Waiting until timeout for monitored process [2022-11-03 02:03:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:21,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:03:21,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:03:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 40 proven. 34 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 02:03:23,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:03:24,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904961967] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:03:24,268 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:03:24,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 02:03:24,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139422346] [2022-11-03 02:03:24,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:03:24,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 02:03:24,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:03:24,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 02:03:24,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1466, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:03:24,271 INFO L87 Difference]: Start difference. First operand 1479 states and 1831 transitions. Second operand has 35 states, 35 states have (on average 23.514285714285716) internal successors, (823), 35 states have internal predecessors, (823), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 02:03:52,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:52,202 INFO L93 Difference]: Finished difference Result 8983 states and 11569 transitions. [2022-11-03 02:03:52,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-11-03 02:03:52,202 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.514285714285716) internal successors, (823), 35 states have internal predecessors, (823), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 02:03:52,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:52,210 INFO L225 Difference]: With dead ends: 8983 [2022-11-03 02:03:52,210 INFO L226 Difference]: Without dead ends: 7610 [2022-11-03 02:03:52,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1372 GetRequests, 1218 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6780 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=4482, Invalid=19698, Unknown=0, NotChecked=0, Total=24180 [2022-11-03 02:03:52,213 INFO L413 NwaCegarLoop]: 1021 mSDtfsCounter, 12882 mSDsluCounter, 23998 mSDsCounter, 0 mSdLazyCounter, 3636 mSolverCounterSat, 750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12882 SdHoareTripleChecker+Valid, 25019 SdHoareTripleChecker+Invalid, 9410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 750 IncrementalHoareTripleChecker+Valid, 3636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5024 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:52,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12882 Valid, 25019 Invalid, 9410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [750 Valid, 3636 Invalid, 0 Unknown, 5024 Unchecked, 6.7s Time] [2022-11-03 02:03:52,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2022-11-03 02:03:52,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 1513. [2022-11-03 02:03:52,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1481 states have (on average 1.2241728561782579) internal successors, (1813), 1481 states have internal predecessors, (1813), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:03:52,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1873 transitions. [2022-11-03 02:03:52,546 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1873 transitions. Word has length 373 [2022-11-03 02:03:52,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:52,547 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 1873 transitions. [2022-11-03 02:03:52,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.514285714285716) internal successors, (823), 35 states have internal predecessors, (823), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 02:03:52,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1873 transitions. [2022-11-03 02:03:52,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:03:52,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:52,550 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:03:52,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Forceful destruction successful, exit code 0 [2022-11-03 02:03:52,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (136)] Forceful destruction successful, exit code 0 [2022-11-03 02:03:52,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (135)] Forceful destruction successful, exit code 0 [2022-11-03 02:03:53,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,136 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,135 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:03:53,151 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:53,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:53,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1459915940, now seen corresponding path program 1 times [2022-11-03 02:03:53,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:03:53,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659213612] [2022-11-03 02:03:53,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:53,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:03:53,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:03:53,154 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:03:53,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (138)] Waiting until timeout for monitored process [2022-11-03 02:03:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:54,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:03:54,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:03:57,243 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 52 proven. 187 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:03:57,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:03:57,337 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:03:57,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659213612] [2022-11-03 02:03:57,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659213612] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:03:57,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1524233208] [2022-11-03 02:03:57,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:57,338 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:03:57,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:03:57,339 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:03:57,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (139)] Waiting until timeout for monitored process [2022-11-03 02:03:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:59,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:03:59,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:04:02,883 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 44 proven. 195 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:04:02,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:04:03,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1524233208] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:04:03,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873980791] [2022-11-03 02:04:03,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:03,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:04:03,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:04:03,041 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:04:03,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Waiting until timeout for monitored process [2022-11-03 02:04:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:03,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:04:03,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:04:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 38 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 02:04:07,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:04:07,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873980791] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:04:07,729 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:04:07,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 02:04:07,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277282832] [2022-11-03 02:04:07,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:04:07,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 02:04:07,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:04:07,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 02:04:07,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:04:07,732 INFO L87 Difference]: Start difference. First operand 1513 states and 1873 transitions. Second operand has 35 states, 35 states have (on average 23.62857142857143) internal successors, (827), 35 states have internal predecessors, (827), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 02:04:22,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:22,833 INFO L93 Difference]: Finished difference Result 5433 states and 6876 transitions. [2022-11-03 02:04:22,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-11-03 02:04:22,834 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.62857142857143) internal successors, (827), 35 states have internal predecessors, (827), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 02:04:22,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:22,837 INFO L225 Difference]: With dead ends: 5433 [2022-11-03 02:04:22,837 INFO L226 Difference]: Without dead ends: 4034 [2022-11-03 02:04:22,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1338 GetRequests, 1225 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2854 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=2568, Invalid=10542, Unknown=0, NotChecked=0, Total=13110 [2022-11-03 02:04:22,839 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 12135 mSDsluCounter, 14926 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12135 SdHoareTripleChecker+Valid, 15607 SdHoareTripleChecker+Invalid, 6124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3624 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:22,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12135 Valid, 15607 Invalid, 6124 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [404 Valid, 2096 Invalid, 0 Unknown, 3624 Unchecked, 4.1s Time] [2022-11-03 02:04:22,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2022-11-03 02:04:23,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 1509. [2022-11-03 02:04:23,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1477 states have (on average 1.2234258632362898) internal successors, (1807), 1477 states have internal predecessors, (1807), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:04:23,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1867 transitions. [2022-11-03 02:04:23,171 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1867 transitions. Word has length 373 [2022-11-03 02:04:23,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:23,172 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 1867 transitions. [2022-11-03 02:04:23,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.62857142857143) internal successors, (827), 35 states have internal predecessors, (827), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 02:04:23,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1867 transitions. [2022-11-03 02:04:23,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:04:23,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:23,175 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:04:23,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (139)] Forceful destruction successful, exit code 0 [2022-11-03 02:04:23,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (138)] Ended with exit code 0 [2022-11-03 02:04:23,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Forceful destruction successful, exit code 0 [2022-11-03 02:04:23,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 139 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,138 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,140 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:04:23,776 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:23,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:23,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1155061592, now seen corresponding path program 1 times [2022-11-03 02:04:23,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:04:23,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919277729] [2022-11-03 02:04:23,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:23,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:04:23,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:04:23,779 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:04:23,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (141)] Waiting until timeout for monitored process [2022-11-03 02:04:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:25,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:04:25,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:04:28,127 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 40 proven. 199 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:04:28,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:04:28,245 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:04:28,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919277729] [2022-11-03 02:04:28,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919277729] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:04:28,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1913513564] [2022-11-03 02:04:28,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:28,247 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:04:28,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:04:28,248 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:04:28,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (142)] Waiting until timeout for monitored process [2022-11-03 02:04:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:30,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:04:30,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:04:33,932 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 24 proven. 215 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:04:33,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:04:34,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1913513564] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:04:34,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806341691] [2022-11-03 02:04:34,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:34,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:04:34,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:04:34,106 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:04:34,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Waiting until timeout for monitored process [2022-11-03 02:04:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:34,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:04:34,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:04:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 32 proven. 42 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 02:04:38,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:04:39,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806341691] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:04:39,035 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:04:39,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 02:04:39,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312289442] [2022-11-03 02:04:39,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:04:39,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 02:04:39,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:04:39,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 02:04:39,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:04:39,037 INFO L87 Difference]: Start difference. First operand 1509 states and 1867 transitions. Second operand has 35 states, 35 states have (on average 23.97142857142857) internal successors, (839), 35 states have internal predecessors, (839), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 02:04:55,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:55,326 INFO L93 Difference]: Finished difference Result 5534 states and 6939 transitions. [2022-11-03 02:04:55,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-11-03 02:04:55,327 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.97142857142857) internal successors, (839), 35 states have internal predecessors, (839), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 02:04:55,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:55,331 INFO L225 Difference]: With dead ends: 5534 [2022-11-03 02:04:55,331 INFO L226 Difference]: Without dead ends: 4149 [2022-11-03 02:04:55,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1335 GetRequests, 1226 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2579 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=2375, Invalid=9835, Unknown=0, NotChecked=0, Total=12210 [2022-11-03 02:04:55,334 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 10016 mSDsluCounter, 21298 mSDsCounter, 0 mSdLazyCounter, 3335 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10016 SdHoareTripleChecker+Valid, 22167 SdHoareTripleChecker+Invalid, 7142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 3335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3322 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:55,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10016 Valid, 22167 Invalid, 7142 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [485 Valid, 3335 Invalid, 0 Unknown, 3322 Unchecked, 5.9s Time] [2022-11-03 02:04:55,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2022-11-03 02:04:55,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 1559. [2022-11-03 02:04:55,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1527 states have (on average 1.223968565815324) internal successors, (1869), 1527 states have internal predecessors, (1869), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:04:55,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 1929 transitions. [2022-11-03 02:04:55,655 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 1929 transitions. Word has length 373 [2022-11-03 02:04:55,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:55,656 INFO L495 AbstractCegarLoop]: Abstraction has 1559 states and 1929 transitions. [2022-11-03 02:04:55,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.97142857142857) internal successors, (839), 35 states have internal predecessors, (839), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 02:04:55,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 1929 transitions. [2022-11-03 02:04:55,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:04:55,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:55,659 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:04:55,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Ended with exit code 0 [2022-11-03 02:04:55,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (142)] Ended with exit code 0 [2022-11-03 02:04:56,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (141)] Ended with exit code 0 [2022-11-03 02:04:56,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 143 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,142 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,141 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:04:56,260 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:56,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:56,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1180447510, now seen corresponding path program 1 times [2022-11-03 02:04:56,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:04:56,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223571479] [2022-11-03 02:04:56,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:56,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:04:56,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:04:56,263 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:04:56,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (144)] Waiting until timeout for monitored process [2022-11-03 02:04:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:57,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:04:57,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:05:00,598 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 203 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:05:00,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:05:00,702 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:05:00,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223571479] [2022-11-03 02:05:00,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223571479] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:05:00,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1660148023] [2022-11-03 02:05:00,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:00,703 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:05:00,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:05:00,704 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:05:00,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (145)] Waiting until timeout for monitored process [2022-11-03 02:05:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:02,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:05:03,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:05:05,838 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 203 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:05:05,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:05:05,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1660148023] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:05:05,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589901512] [2022-11-03 02:05:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:05,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:05:05,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:05:05,898 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:05:05,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Waiting until timeout for monitored process [2022-11-03 02:05:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:06,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:05:06,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:05:09,415 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 32 proven. 42 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 02:05:09,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:05:09,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589901512] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:05:09,661 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:05:09,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 22 [2022-11-03 02:05:09,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196423997] [2022-11-03 02:05:09,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:05:09,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 02:05:09,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:05:09,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 02:05:09,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:05:09,663 INFO L87 Difference]: Start difference. First operand 1559 states and 1929 transitions. Second operand has 22 states, 22 states have (on average 24.136363636363637) internal successors, (531), 22 states have internal predecessors, (531), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 02:05:17,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:17,797 INFO L93 Difference]: Finished difference Result 4541 states and 5651 transitions. [2022-11-03 02:05:17,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-03 02:05:17,798 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 24.136363636363637) internal successors, (531), 22 states have internal predecessors, (531), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 373 [2022-11-03 02:05:17,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:17,801 INFO L225 Difference]: With dead ends: 4541 [2022-11-03 02:05:17,801 INFO L226 Difference]: Without dead ends: 3108 [2022-11-03 02:05:17,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1312 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1637, Invalid=5335, Unknown=0, NotChecked=0, Total=6972 [2022-11-03 02:05:17,803 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 6893 mSDsluCounter, 8846 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6893 SdHoareTripleChecker+Valid, 9469 SdHoareTripleChecker+Invalid, 2609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1055 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:17,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6893 Valid, 9469 Invalid, 2609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1356 Invalid, 0 Unknown, 1055 Unchecked, 2.4s Time] [2022-11-03 02:05:17,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2022-11-03 02:05:18,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 1525. [2022-11-03 02:05:18,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1493 states have (on average 1.2190221031480242) internal successors, (1820), 1493 states have internal predecessors, (1820), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:05:18,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1880 transitions. [2022-11-03 02:05:18,172 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1880 transitions. Word has length 373 [2022-11-03 02:05:18,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:18,172 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 1880 transitions. [2022-11-03 02:05:18,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 24.136363636363637) internal successors, (531), 22 states have internal predecessors, (531), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 02:05:18,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1880 transitions. [2022-11-03 02:05:18,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:05:18,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:18,175 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:05:18,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (144)] Ended with exit code 0 [2022-11-03 02:05:18,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (145)] Ended with exit code 0 [2022-11-03 02:05:18,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Ended with exit code 0 [2022-11-03 02:05:18,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 144 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,145 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,146 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:05:18,776 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:05:18,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:18,777 INFO L85 PathProgramCache]: Analyzing trace with hash 913980248, now seen corresponding path program 1 times [2022-11-03 02:05:18,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:05:18,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910907367] [2022-11-03 02:05:18,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:18,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:05:18,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:05:18,780 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:05:18,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (147)] Waiting until timeout for monitored process [2022-11-03 02:05:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:20,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:05:20,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:05:23,039 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 32 proven. 207 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:05:23,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:05:23,146 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:05:23,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910907367] [2022-11-03 02:05:23,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910907367] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:05:23,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2064592433] [2022-11-03 02:05:23,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:23,147 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:05:23,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:05:23,147 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:05:23,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (148)] Waiting until timeout for monitored process [2022-11-03 02:05:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:25,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:05:25,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:05:28,845 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 20 proven. 219 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:05:28,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:05:29,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2064592433] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:05:29,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447396499] [2022-11-03 02:05:29,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:29,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:05:29,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:05:29,037 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:05:29,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Waiting until timeout for monitored process [2022-11-03 02:05:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:29,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:05:29,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:05:34,191 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 12 proven. 62 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 02:05:34,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:05:34,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447396499] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:05:34,600 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:05:34,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 02:05:34,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981838670] [2022-11-03 02:05:34,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:05:34,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 02:05:34,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:05:34,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 02:05:34,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1457, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:05:34,603 INFO L87 Difference]: Start difference. First operand 1525 states and 1880 transitions. Second operand has 35 states, 35 states have (on average 24.314285714285713) internal successors, (851), 35 states have internal predecessors, (851), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 02:05:50,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:50,903 INFO L93 Difference]: Finished difference Result 5179 states and 6453 transitions. [2022-11-03 02:05:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-11-03 02:05:50,904 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 24.314285714285713) internal successors, (851), 35 states have internal predecessors, (851), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 02:05:50,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:50,907 INFO L225 Difference]: With dead ends: 5179 [2022-11-03 02:05:50,907 INFO L226 Difference]: Without dead ends: 3780 [2022-11-03 02:05:50,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1344 GetRequests, 1228 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3062 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=2669, Invalid=11137, Unknown=0, NotChecked=0, Total=13806 [2022-11-03 02:05:50,909 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 9254 mSDsluCounter, 18057 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9254 SdHoareTripleChecker+Valid, 18733 SdHoareTripleChecker+Invalid, 7253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3776 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:50,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9254 Valid, 18733 Invalid, 7253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [398 Valid, 3079 Invalid, 0 Unknown, 3776 Unchecked, 5.2s Time] [2022-11-03 02:05:50,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2022-11-03 02:05:51,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 1523. [2022-11-03 02:05:51,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1491 states have (on average 1.21663313212609) internal successors, (1814), 1491 states have internal predecessors, (1814), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:05:51,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 1874 transitions. [2022-11-03 02:05:51,205 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 1874 transitions. Word has length 373 [2022-11-03 02:05:51,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:51,206 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 1874 transitions. [2022-11-03 02:05:51,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 24.314285714285713) internal successors, (851), 35 states have internal predecessors, (851), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 02:05:51,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 1874 transitions. [2022-11-03 02:05:51,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:05:51,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:51,208 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:05:51,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (147)] Ended with exit code 0 [2022-11-03 02:05:51,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Forceful destruction successful, exit code 0 [2022-11-03 02:05:51,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (148)] Ended with exit code 0 [2022-11-03 02:05:51,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 147 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,149 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,148 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:05:51,809 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:05:51,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:51,810 INFO L85 PathProgramCache]: Analyzing trace with hash -428972010, now seen corresponding path program 1 times [2022-11-03 02:05:51,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:05:51,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468796502] [2022-11-03 02:05:51,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:51,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:05:51,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:05:51,813 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:05:51,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (150)] Waiting until timeout for monitored process [2022-11-03 02:05:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:53,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:05:53,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:05:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 16 proven. 223 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:05:56,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:05:56,556 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:05:56,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468796502] [2022-11-03 02:05:56,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468796502] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:05:56,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1011299246] [2022-11-03 02:05:56,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:56,557 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:05:56,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:05:56,559 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:05:56,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (151)] Waiting until timeout for monitored process [2022-11-03 02:05:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:58,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:05:58,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:06:01,865 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 16 proven. 223 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:06:01,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:06:01,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1011299246] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:06:01,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400317972] [2022-11-03 02:06:01,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:01,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:01,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:06:01,942 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:06:01,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Waiting until timeout for monitored process [2022-11-03 02:06:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:02,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:06:02,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:06:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 12 proven. 62 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 02:06:06,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:06:07,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400317972] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:06:07,166 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:06:07,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 22 [2022-11-03 02:06:07,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368303221] [2022-11-03 02:06:07,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:06:07,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 02:06:07,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:06:07,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 02:06:07,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:06:07,168 INFO L87 Difference]: Start difference. First operand 1523 states and 1874 transitions. Second operand has 22 states, 22 states have (on average 24.59090909090909) internal successors, (541), 22 states have internal predecessors, (541), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 02:06:14,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:14,296 INFO L93 Difference]: Finished difference Result 4089 states and 5048 transitions. [2022-11-03 02:06:14,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-03 02:06:14,296 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 24.59090909090909) internal successors, (541), 22 states have internal predecessors, (541), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 373 [2022-11-03 02:06:14,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:14,299 INFO L225 Difference]: With dead ends: 4089 [2022-11-03 02:06:14,299 INFO L226 Difference]: Without dead ends: 2694 [2022-11-03 02:06:14,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1296 GetRequests, 1227 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1016 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1159, Invalid=3811, Unknown=0, NotChecked=0, Total=4970 [2022-11-03 02:06:14,300 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 6110 mSDsluCounter, 6594 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6110 SdHoareTripleChecker+Valid, 7081 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1295 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:14,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6110 Valid, 7081 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1092 Invalid, 0 Unknown, 1295 Unchecked, 2.2s Time] [2022-11-03 02:06:14,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-11-03 02:06:14,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1523. [2022-11-03 02:06:14,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1491 states have (on average 1.21663313212609) internal successors, (1814), 1491 states have internal predecessors, (1814), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 02:06:14,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 1874 transitions. [2022-11-03 02:06:14,632 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 1874 transitions. Word has length 373 [2022-11-03 02:06:14,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:14,633 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 1874 transitions. [2022-11-03 02:06:14,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 24.59090909090909) internal successors, (541), 22 states have internal predecessors, (541), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 02:06:14,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 1874 transitions. [2022-11-03 02:06:14,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:06:14,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:14,636 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:06:14,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (150)] Ended with exit code 0 [2022-11-03 02:06:14,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Ended with exit code 0 [2022-11-03 02:06:15,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (151)] Ended with exit code 0 [2022-11-03 02:06:15,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 150 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,152 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,151 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:06:15,237 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:06:15,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:15,237 INFO L85 PathProgramCache]: Analyzing trace with hash -821999020, now seen corresponding path program 1 times [2022-11-03 02:06:15,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:06:15,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742690314] [2022-11-03 02:06:15,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:15,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:06:15,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:06:15,240 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:06:15,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (153)] Waiting until timeout for monitored process [2022-11-03 02:06:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:16,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 02:06:16,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:06:21,075 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 27 proven. 236 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-03 02:06:21,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:06:21,214 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:06:21,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742690314] [2022-11-03 02:06:21,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742690314] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:06:21,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1024292992] [2022-11-03 02:06:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:21,214 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:06:21,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:06:21,215 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:06:21,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967f8f5-c2e5-4f90-a6ee-79c5c04d81cc/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (154)] Waiting until timeout for monitored process