./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_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_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/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_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/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_b1c29715-10e9-446e-b05e-d51ea1be0627/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 e8ab3fe59f7525e54ab84b33a11a9afed070601def864345721dd45b012e469e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:22:36,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:22:36,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:22:36,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:22:36,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:22:36,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:22:36,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:22:36,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:22:36,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:22:36,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:22:36,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:22:36,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:22:36,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:22:36,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:22:36,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:22:36,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:22:36,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:22:36,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:22:36,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:22:36,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:22:36,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:22:36,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:22:36,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:22:36,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:22:36,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:22:36,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:22:36,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:22:36,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:22:36,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:22:36,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:22:36,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:22:36,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:22:36,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:22:36,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:22:36,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:22:36,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:22:36,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:22:36,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:22:36,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:22:36,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:22:36,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:22:36,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:22:36,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:22:36,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:22:36,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:22:36,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:22:36,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:22:36,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:22:36,674 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:22:36,675 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:22:36,675 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:22:36,675 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:22:36,675 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:22:36,675 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:22:36,675 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:22:36,676 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:22:36,676 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:22:36,676 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:22:36,676 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:22:36,676 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:22:36,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:22:36,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:22:36,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:22:36,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:22:36,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:22:36,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:22:36,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:22:36,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:22:36,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:22:36,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:22:36,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:22:36,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:22:36,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:22:36,679 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:22:36,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:22:36,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:22:36,680 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:22:36,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:22:36,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:22:36,680 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:22:36,681 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_b1c29715-10e9-446e-b05e-d51ea1be0627/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8ab3fe59f7525e54ab84b33a11a9afed070601def864345721dd45b012e469e [2022-11-03 02:22:36,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:22:37,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:22:37,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:22:37,018 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:22:37,018 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:22:37,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2022-11-03 02:22:37,101 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/data/827e463ea/1e25cbd7a9f445c3b9e5169eb7ae2880/FLAG6368ef112 [2022-11-03 02:22:37,732 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:22:37,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2022-11-03 02:22:37,746 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/data/827e463ea/1e25cbd7a9f445c3b9e5169eb7ae2880/FLAG6368ef112 [2022-11-03 02:22:38,009 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/data/827e463ea/1e25cbd7a9f445c3b9e5169eb7ae2880 [2022-11-03 02:22:38,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:22:38,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:22:38,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:22:38,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:22:38,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:22:38,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:38,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5cb710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38, skipping insertion in model container [2022-11-03 02:22:38,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:38,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:22:38,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:22:38,290 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_b1c29715-10e9-446e-b05e-d51ea1be0627/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c[1116,1129] [2022-11-03 02:22:38,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:22:38,542 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:22:38,561 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_b1c29715-10e9-446e-b05e-d51ea1be0627/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c[1116,1129] [2022-11-03 02:22:38,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:22:38,736 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:22:38,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38 WrapperNode [2022-11-03 02:22:38,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:22:38,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:22:38,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:22:38,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:22:38,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:38,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:38,966 INFO L138 Inliner]: procedures = 11, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1142 [2022-11-03 02:22:38,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:22:38,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:22:38,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:22:38,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:22:38,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:38,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:38,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:38,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:39,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:39,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:39,079 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:39,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:39,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:22:39,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:22:39,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:22:39,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:22:39,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:39,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:22:39,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:39,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:22:39,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:22:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:22:39,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:22:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:22:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:22:39,539 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:22:39,541 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:22:41,464 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:22:43,526 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:22:43,526 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:22:43,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:22:43 BoogieIcfgContainer [2022-11-03 02:22:43,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:22:43,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:22:43,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:22:43,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:22:43,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:22:38" (1/3) ... [2022-11-03 02:22:43,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e53819d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:22:43, skipping insertion in model container [2022-11-03 02:22:43,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38" (2/3) ... [2022-11-03 02:22:43,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e53819d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:22:43, skipping insertion in model container [2022-11-03 02:22:43,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:22:43" (3/3) ... [2022-11-03 02:22:43,542 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2022-11-03 02:22:43,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:22:43,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:22:43,631 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:22:43,649 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;@25236099, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:22:43,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:22:43,654 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 02:22:43,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:22:43,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:43,665 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:43,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:43,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:43,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1478196790, now seen corresponding path program 1 times [2022-11-03 02:22:43,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:43,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640450531] [2022-11-03 02:22:43,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:43,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:50,730 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 02:22:50,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:50,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640450531] [2022-11-03 02:22:50,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640450531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:50,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:50,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:22:50,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610479926] [2022-11-03 02:22:50,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:50,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:22:50,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:50,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:22:50,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:22:50,778 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 02:22:52,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:22:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:53,302 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2022-11-03 02:22:53,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:22:53,304 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 02:22:53,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:53,311 INFO L225 Difference]: With dead ends: 37 [2022-11-03 02:22:53,311 INFO L226 Difference]: Without dead ends: 23 [2022-11-03 02:22:53,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:53,317 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 7 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:53,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 39 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-03 02:22:53,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-03 02:22:53,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-11-03 02:22:53,355 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 02:22:53,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-03 02:22:53,358 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 16 [2022-11-03 02:22:53,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:53,360 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-03 02:22:53,360 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 02:22:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-03 02:22:53,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 02:22:53,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:53,362 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-03 02:22:53,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:22:53,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:53,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1208692764, now seen corresponding path program 1 times [2022-11-03 02:22:53,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:53,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845888234] [2022-11-03 02:22:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:53,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:23:09,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:23:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:23:24,274 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:23:24,275 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:23:24,276 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:23:24,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:23:24,283 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 02:23:24,287 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:23:24,458 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 02:23:24,459 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 02:23:24,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:23:24 BoogieIcfgContainer [2022-11-03 02:23:24,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:23:24,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:23:24,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:23:24,517 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:23:24,517 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:22:43" (3/4) ... [2022-11-03 02:23:24,520 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 02:23:24,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:23:24,522 INFO L158 Benchmark]: Toolchain (without parser) took 46506.80ms. Allocated memory was 100.7MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 56.7MB in the beginning and 664.0MB in the end (delta: -607.3MB). Peak memory consumption was 546.5MB. Max. memory is 16.1GB. [2022-11-03 02:23:24,523 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:23:24,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 721.32ms. Allocated memory is still 100.7MB. Free memory was 56.5MB in the beginning and 53.2MB in the end (delta: 3.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2022-11-03 02:23:24,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 225.73ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 53.2MB in the beginning and 88.2MB in the end (delta: -35.1MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2022-11-03 02:23:24,530 INFO L158 Benchmark]: Boogie Preprocessor took 151.39ms. Allocated memory is still 121.6MB. Free memory was 88.2MB in the beginning and 80.4MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 02:23:24,531 INFO L158 Benchmark]: RCFGBuilder took 4411.93ms. Allocated memory was 121.6MB in the beginning and 396.4MB in the end (delta: 274.7MB). Free memory was 80.4MB in the beginning and 300.2MB in the end (delta: -219.7MB). Peak memory consumption was 135.3MB. Max. memory is 16.1GB. [2022-11-03 02:23:24,531 INFO L158 Benchmark]: TraceAbstraction took 40980.60ms. Allocated memory was 396.4MB in the beginning and 1.3GB in the end (delta: 857.7MB). Free memory was 299.1MB in the beginning and 665.0MB in the end (delta: -365.9MB). Peak memory consumption was 713.1MB. Max. memory is 16.1GB. [2022-11-03 02:23:24,531 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 1.3GB. Free memory was 665.0MB in the beginning and 664.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:23:24,539 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 721.32ms. Allocated memory is still 100.7MB. Free memory was 56.5MB in the beginning and 53.2MB in the end (delta: 3.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 225.73ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 53.2MB in the beginning and 88.2MB in the end (delta: -35.1MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 151.39ms. Allocated memory is still 121.6MB. Free memory was 88.2MB in the beginning and 80.4MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 4411.93ms. Allocated memory was 121.6MB in the beginning and 396.4MB in the end (delta: 274.7MB). Free memory was 80.4MB in the beginning and 300.2MB in the end (delta: -219.7MB). Peak memory consumption was 135.3MB. Max. memory is 16.1GB. * TraceAbstraction took 40980.60ms. Allocated memory was 396.4MB in the beginning and 1.3GB in the end (delta: 857.7MB). Free memory was 299.1MB in the beginning and 665.0MB in the end (delta: -365.9MB). Peak memory consumption was 713.1MB. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 1.3GB. Free memory was 665.0MB in the beginning and 664.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 - 32); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (32 - 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_uint() & mask_SORT_3; [L77] SORT_11 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L78] SORT_3 state_18 = __VERIFIER_nondet_uint() & mask_SORT_3; [L79] SORT_3 state_24 = __VERIFIER_nondet_uint() & mask_SORT_3; [L80] SORT_3 state_29 = __VERIFIER_nondet_uint() & mask_SORT_3; [L81] SORT_3 state_34 = __VERIFIER_nondet_uint() & mask_SORT_3; [L82] SORT_3 state_39 = __VERIFIER_nondet_uint() & mask_SORT_3; [L83] SORT_3 state_44 = __VERIFIER_nondet_uint() & mask_SORT_3; [L84] SORT_3 state_49 = __VERIFIER_nondet_uint() & mask_SORT_3; [L85] SORT_3 state_54 = __VERIFIER_nondet_uint() & mask_SORT_3; [L86] SORT_3 state_59 = __VERIFIER_nondet_uint() & mask_SORT_3; [L87] SORT_3 state_65 = __VERIFIER_nondet_uint() & mask_SORT_3; [L88] SORT_3 state_70 = __VERIFIER_nondet_uint() & mask_SORT_3; [L89] SORT_3 state_75 = __VERIFIER_nondet_uint() & mask_SORT_3; [L90] SORT_3 state_80 = __VERIFIER_nondet_uint() & mask_SORT_3; [L91] SORT_3 state_86 = __VERIFIER_nondet_uint() & mask_SORT_3; [L92] SORT_3 state_91 = __VERIFIER_nondet_uint() & mask_SORT_3; [L93] SORT_3 state_96 = __VERIFIER_nondet_uint() & 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_uint() & 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=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=2, state_109=1, state_110=0, state_113=2, state_12=0, state_128=0, state_132=1, state_18=0, state_185=2, 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=0, state_75=59, state_80=0, state_86=59, state_91=0, state_96=59, 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_uint() [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_uint() [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=0, input_2=25, input_4=0, input_5=67, input_6=0, input_7=1, input_8=16, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=2, state_109=1, state_110=0, state_113=2, state_12=0, state_128=0, state_132=1, state_18=0, state_185=2, 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=0, state_75=59, state_80=0, state_86=59, state_91=0, state_96=59, var_105=17, var_122=0, var_134=1, var_134_arg_0=1, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=1, 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=0, input_2=25, input_4=0, input_5=67, input_6=0, input_7=1, input_8=16, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=2, state_109=1, state_110=0, state_113=2, state_12=0, state_128=0, state_132=1, state_18=0, state_185=2, 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=0, state_75=59, state_80=0, state_86=59, state_91=0, state_96=59, var_105=17, var_122=0, var_134=1, var_134_arg_0=1, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=1, 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=0, input_2=25, input_4=0, input_5=67, input_6=0, input_7=1, input_8=16, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=2, state_109=1, state_110=0, state_113=2, state_12=0, state_128=0, state_132=1, state_18=0, state_185=2, 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=0, state_75=59, state_80=0, state_86=59, state_91=0, state_96=59, var_105=17, var_106=0, var_106_arg_0=0, var_107=0, var_107_arg_0=2, var_107_arg_1=0, var_122=0, var_134=1, var_134_arg_0=1, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=1, var_138=18, var_138_arg_0=0, var_139=0, var_139_arg_0=0, var_140=0, var_140_arg_0=18, var_140_arg_1=0, var_141=1, var_141_arg_0=1, var_142=1, var_142_arg_0=0, var_142_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] [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=0, input_2=25, input_4=0, input_5=67, input_6=0, input_7=1, input_8=16, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=2, state_109=1, state_110=0, state_113=2, state_12=0, state_128=0, state_132=1, state_18=0, state_185=2, 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=0, state_75=59, state_80=0, state_86=59, state_91=0, state_96=59, var_105=17, var_106=0, var_106_arg_0=0, var_107=0, var_107_arg_0=2, var_107_arg_1=0, var_122=0, var_134=1, var_134_arg_0=1, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=1, var_138=18, var_138_arg_0=0, var_139=0, var_139_arg_0=0, var_140=0, var_140_arg_0=18, var_140_arg_1=0, var_141=1, var_141_arg_0=1, var_142=1, var_142_arg_0=0, var_142_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] [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=0, input_2=25, input_4=0, input_5=67, input_6=0, input_7=1, input_8=16, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=2, state_109=1, state_110=0, state_113=2, state_12=0, state_128=0, state_132=1, state_18=0, state_185=2, 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=0, state_75=59, state_80=0, state_86=59, state_91=0, state_96=59, var_102=1, var_102_arg_0=2, var_103=9, var_103_arg_0=1, var_105=17, var_106=0, var_106_arg_0=0, var_107=0, var_107_arg_0=2, var_107_arg_1=0, var_122=0, var_134=1, var_134_arg_0=1, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=1, var_138=18, var_138_arg_0=0, var_139=0, var_139_arg_0=0, var_140=0, var_140_arg_0=18, var_140_arg_1=0, var_141=1, var_141_arg_0=1, var_142=1, var_142_arg_0=0, var_142_arg_1=1, var_144=0, var_144_arg_0=9, var_145=20, var_145_arg_0=67, var_146=2, var_146_arg_0=0, var_146_arg_1=20, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=2, 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=0, input_2=25, input_4=0, input_5=67, input_6=0, input_7=1, input_8=16, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=2, state_109=1, state_110=0, state_113=2, state_12=0, state_128=0, state_132=1, state_18=0, state_185=2, 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=0, state_75=59, state_80=0, state_86=59, state_91=0, state_96=59, var_102=1, var_102_arg_0=2, var_103=9, var_103_arg_0=1, var_105=17, var_106=0, var_106_arg_0=0, var_107=0, var_107_arg_0=2, var_107_arg_1=0, var_122=0, var_134=1, var_134_arg_0=1, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=1, var_138=18, var_138_arg_0=0, var_139=0, var_139_arg_0=0, var_140=0, var_140_arg_0=18, var_140_arg_1=0, var_141=1, var_141_arg_0=1, var_142=1, var_142_arg_0=0, var_142_arg_1=1, var_144=0, var_144_arg_0=9, var_145=20, var_145_arg_0=67, var_146=2, var_146_arg_0=0, var_146_arg_1=20, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=2, 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=0, input_2=25, input_4=0, input_5=67, input_6=0, input_7=1, input_8=16, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, 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=0, 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=0, next_435_arg_1=0, next_438_arg_1=0, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=0, state_113=0, state_12=0, state_128=0, state_132=0, state_18=0, state_185=0, 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=0, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=1, var_102_arg_0=2, var_103=9, var_103_arg_0=1, var_105=17, var_106=0, var_106_arg_0=0, var_107=0, var_107_arg_0=2, 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=2, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=0, var_116_arg_0=1, var_117=0, var_117_arg_0=0, var_117_arg_1=0, var_118=0, var_118_arg_0=0, var_119=2, var_119_arg_0=2, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=1, var_121_arg_0=2, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=1, var_123_arg_1=0, var_123_arg_2=1, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=0, var_127_arg_0=1, var_129=0, var_129_arg_0=0, var_129_arg_1=4294967295, var_130=0, var_130_arg_0=0, var_130_arg_1=0, var_134=1, var_134_arg_0=1, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=1, var_138=18, var_138_arg_0=0, var_139=0, var_139_arg_0=0, var_14=0, var_140=0, var_140_arg_0=18, var_140_arg_1=0, var_141=1, var_141_arg_0=1, var_142=1, var_142_arg_0=0, var_142_arg_1=1, var_144=0, var_144_arg_0=9, var_145=20, var_145_arg_0=67, var_146=2, var_146_arg_0=0, var_146_arg_1=20, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=2, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=0, var_151_arg_0=1, var_151_arg_1=0, var_151_arg_2=0, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=254, var_154_arg_0=0, var_155=0, var_155_arg_0=0, var_155_arg_1=254, var_16=0, var_160=254, var_160_arg_0=0, var_160_arg_1=67, var_161=1, var_161_arg_0=254, var_161_arg_1=1, 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=1, var_186_arg_0=2, var_187=1, var_187_arg_0=1, var_188=2, var_188_arg_0=1, var_189=0, var_189_arg_0=0, var_189_arg_1=2, var_194=0, var_194_arg_0=0, var_195=0, var_195_arg_0=1, var_195_arg_1=0, var_196=0, var_196_arg_0=0, var_196_arg_1=0, var_20=15, var_201=1, var_201_arg_0=1, var_202=1, var_202_arg_0=1, var_202_arg_1=1, var_203=0, var_203_arg_0=0, var_203_arg_1=1, var_208=12, var_208_arg_0=12, var_209=0, var_209_arg_0=1, var_209_arg_1=12, var_21=0, var_210=0, var_210_arg_0=0, var_210_arg_1=0, var_215=1, var_215_arg_0=1, var_216=1, var_216_arg_0=1, var_216_arg_1=1, var_217=0, var_217_arg_0=0, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=1, var_223_arg_1=0, var_224=0, var_224_arg_0=0, var_224_arg_1=0, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=1, var_230_arg_1=1, var_231=0, var_231_arg_0=0, var_231_arg_1=1, var_236=0, var_236_arg_0=1, var_236_arg_1=16, var_237=0, var_237_arg_0=0, 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=1, var_243_arg_0=1, var_243_arg_1=1, var_244=0, var_244_arg_0=0, var_244_arg_1=1, var_249=0, var_249_arg_0=0, var_25=14, var_250=0, var_250_arg_0=1, var_250_arg_1=0, var_251=0, var_251_arg_0=0, var_251_arg_1=0, var_256=1, var_256_arg_0=1, var_257=1, var_257_arg_0=1, var_257_arg_1=1, var_258=0, var_258_arg_0=0, var_258_arg_1=1, var_26=0, var_263=1, var_263_arg_0=1, var_264=1, var_264_arg_0=1, var_264_arg_1=1, var_265=0, var_265_arg_0=0, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=1, var_271_arg_0=1, var_271_arg_1=1, var_272=0, var_272_arg_0=0, var_272_arg_1=1, var_277=2, var_277_arg_0=2, var_278=0, var_278_arg_0=1, var_278_arg_1=2, var_279=0, var_279_arg_0=0, var_279_arg_1=0, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=7, var_284_arg_0=7, var_285=0, var_285_arg_0=1, var_285_arg_1=7, var_286=0, var_286_arg_0=0, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=1, var_291_arg_0=1, var_292=1, var_292_arg_0=1, var_292_arg_1=1, var_293=0, var_293_arg_0=0, var_293_arg_1=1, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=1, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=0, var_300_arg_1=0, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=2, var_310_arg_0=2, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=16, var_329_arg_1=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=0, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=0, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=22, var_353_arg_0=0, var_353_arg_1=67, var_354=0, var_354_arg_0=22, var_354_arg_1=1, var_355=1, var_355_arg_0=0, 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=1, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=0, var_377_arg_0=1, var_377_arg_1=0, var_377_arg_2=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=11, var_410=0, var_410_arg_0=1, var_410_arg_1=0, var_410_arg_2=0, var_412=59, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=59, var_413=0, var_413_arg_0=1, var_413_arg_1=0, var_413_arg_2=59, 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=1, var_416_arg_1=0, var_416_arg_2=0, var_418=59, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=59, var_419=0, var_419_arg_0=1, var_419_arg_1=0, var_419_arg_2=59, var_41_arg_0=11, 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=1, var_422_arg_1=0, var_422_arg_2=0, var_424=59, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=59, var_425=0, var_425_arg_0=1, var_425_arg_1=0, var_425_arg_2=59, var_427=0, var_427_arg_0=0, var_428=2, var_428_arg_0=2, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=11, var_43=0, var_430=1, var_430_arg_0=2, var_430_arg_1=1, var_431=0, var_431_arg_0=1, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=0, var_433_arg_1=1, var_433_arg_2=1, var_434=0, var_434_arg_0=1, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=0, var_437_arg_0=1, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=2, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=1, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=1, var_443_arg_1=0, var_443_arg_2=0, var_446=2, var_446_arg_0=1, var_446_arg_1=2, var_446_arg_2=2, var_447=0, var_447_arg_0=1, var_447_arg_1=0, var_447_arg_2=2, var_45=10, var_46=29, var_46_arg_0=29, var_47=0, var_47_arg_0=0, var_47_arg_1=29, 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=21, var_56_arg_0=21, var_57=0, var_57_arg_0=0, var_57_arg_1=21, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=28, var_62_arg_0=28, var_63=0, var_63_arg_0=0, var_63_arg_1=28, var_64=0, var_64_arg_0=0, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=7, var_67_arg_0=7, var_68=0, var_68_arg_0=0, var_68_arg_1=7, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=3, var_72_arg_0=3, var_73=0, var_73_arg_0=0, var_73_arg_1=3, var_74=0, var_74_arg_0=0, var_74_arg_1=0, 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=59, var_79_arg_0=1, var_79_arg_1=59, var_79_arg_2=0, var_82=3, var_83=1, var_83_arg_0=1, var_84=0, var_84_arg_0=0, var_84_arg_1=1, var_85=59, var_85_arg_0=0, var_85_arg_1=0, var_85_arg_2=59, 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=59, var_90_arg_0=1, var_90_arg_1=59, var_90_arg_2=59, 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=59, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=59, var_97=0, var_97_arg_0=0, var_98=1, var_98_arg_0=0, var_99=4294967295, var_99_arg_0=1, var_99_arg_1=59, var_99_arg_2=59] [L106] input_2 = __VERIFIER_nondet_uchar() [L107] input_4 = __VERIFIER_nondet_uint() [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_uint() [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=2147483654, input_5=24, input_6=2, 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=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, 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=0, 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=0, next_435_arg_1=0, next_438_arg_1=0, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=0, state_113=0, state_12=0, state_128=0, state_132=0, state_18=0, state_185=0, 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=0, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=1, var_102_arg_0=2, var_103=9, var_103_arg_0=1, var_105=17, var_106=0, var_106_arg_0=0, var_107=0, var_107_arg_0=2, 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=2, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=0, var_116_arg_0=1, var_117=0, var_117_arg_0=0, var_117_arg_1=0, var_118=0, var_118_arg_0=0, var_119=2, var_119_arg_0=2, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=1, var_121_arg_0=2, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=1, var_123_arg_1=0, var_123_arg_2=1, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=0, var_127_arg_0=1, var_129=0, var_129_arg_0=0, var_129_arg_1=4294967295, var_130=0, var_130_arg_0=0, var_130_arg_1=0, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=18, var_138_arg_0=0, var_139=0, var_139_arg_0=0, var_14=0, var_140=0, var_140_arg_0=18, var_140_arg_1=0, var_141=1, var_141_arg_0=1, var_142=1, var_142_arg_0=0, var_142_arg_1=1, var_144=0, var_144_arg_0=9, var_145=20, var_145_arg_0=67, var_146=2, var_146_arg_0=0, var_146_arg_1=20, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=2, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=0, var_151_arg_0=1, var_151_arg_1=0, var_151_arg_2=0, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=254, var_154_arg_0=0, var_155=0, var_155_arg_0=0, var_155_arg_1=254, var_16=0, var_160=254, var_160_arg_0=0, var_160_arg_1=67, var_161=1, var_161_arg_0=254, var_161_arg_1=1, 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=1, var_186_arg_0=2, var_187=1, var_187_arg_0=1, var_188=2, var_188_arg_0=1, var_189=0, var_189_arg_0=0, var_189_arg_1=2, var_194=0, var_194_arg_0=0, var_195=0, var_195_arg_0=1, var_195_arg_1=0, var_196=0, var_196_arg_0=0, var_196_arg_1=0, var_20=15, var_201=1, var_201_arg_0=1, var_202=1, var_202_arg_0=1, var_202_arg_1=1, var_203=0, var_203_arg_0=0, var_203_arg_1=1, var_208=12, var_208_arg_0=12, var_209=0, var_209_arg_0=1, var_209_arg_1=12, var_21=0, var_210=0, var_210_arg_0=0, var_210_arg_1=0, var_215=1, var_215_arg_0=1, var_216=1, var_216_arg_0=1, var_216_arg_1=1, var_217=0, var_217_arg_0=0, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=1, var_223_arg_1=0, var_224=0, var_224_arg_0=0, var_224_arg_1=0, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=1, var_230_arg_1=1, var_231=0, var_231_arg_0=0, var_231_arg_1=1, var_236=0, var_236_arg_0=1, var_236_arg_1=16, var_237=0, var_237_arg_0=0, 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=1, var_243_arg_0=1, var_243_arg_1=1, var_244=0, var_244_arg_0=0, var_244_arg_1=1, var_249=0, var_249_arg_0=0, var_25=14, var_250=0, var_250_arg_0=1, var_250_arg_1=0, var_251=0, var_251_arg_0=0, var_251_arg_1=0, var_256=1, var_256_arg_0=1, var_257=1, var_257_arg_0=1, var_257_arg_1=1, var_258=0, var_258_arg_0=0, var_258_arg_1=1, var_26=0, var_263=1, var_263_arg_0=1, var_264=1, var_264_arg_0=1, var_264_arg_1=1, var_265=0, var_265_arg_0=0, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=1, var_271_arg_0=1, var_271_arg_1=1, var_272=0, var_272_arg_0=0, var_272_arg_1=1, var_277=2, var_277_arg_0=2, var_278=0, var_278_arg_0=1, var_278_arg_1=2, var_279=0, var_279_arg_0=0, var_279_arg_1=0, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=7, var_284_arg_0=7, var_285=0, var_285_arg_0=1, var_285_arg_1=7, var_286=0, var_286_arg_0=0, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=1, var_291_arg_0=1, var_292=1, var_292_arg_0=1, var_292_arg_1=1, var_293=0, var_293_arg_0=0, var_293_arg_1=1, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=1, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=0, var_300_arg_1=0, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=2, var_310_arg_0=2, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=16, var_329_arg_1=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=0, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=0, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=22, var_353_arg_0=0, var_353_arg_1=67, var_354=0, var_354_arg_0=22, var_354_arg_1=1, var_355=1, var_355_arg_0=0, 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=1, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=0, var_377_arg_0=1, var_377_arg_1=0, var_377_arg_2=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=11, var_410=0, var_410_arg_0=1, var_410_arg_1=0, var_410_arg_2=0, var_412=59, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=59, var_413=0, var_413_arg_0=1, var_413_arg_1=0, var_413_arg_2=59, 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=1, var_416_arg_1=0, var_416_arg_2=0, var_418=59, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=59, var_419=0, var_419_arg_0=1, var_419_arg_1=0, var_419_arg_2=59, var_41_arg_0=11, 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=1, var_422_arg_1=0, var_422_arg_2=0, var_424=59, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=59, var_425=0, var_425_arg_0=1, var_425_arg_1=0, var_425_arg_2=59, var_427=0, var_427_arg_0=0, var_428=2, var_428_arg_0=2, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=11, var_43=0, var_430=1, var_430_arg_0=2, var_430_arg_1=1, var_431=0, var_431_arg_0=1, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=0, var_433_arg_1=1, var_433_arg_2=1, var_434=0, var_434_arg_0=1, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=0, var_437_arg_0=1, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=2, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=1, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=1, var_443_arg_1=0, var_443_arg_2=0, var_446=2, var_446_arg_0=1, var_446_arg_1=2, var_446_arg_2=2, var_447=0, var_447_arg_0=1, var_447_arg_1=0, var_447_arg_2=2, var_45=10, var_46=29, var_46_arg_0=29, var_47=0, var_47_arg_0=0, var_47_arg_1=29, 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=21, var_56_arg_0=21, var_57=0, var_57_arg_0=0, var_57_arg_1=21, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=28, var_62_arg_0=28, var_63=0, var_63_arg_0=0, var_63_arg_1=28, var_64=0, var_64_arg_0=0, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=7, var_67_arg_0=7, var_68=0, var_68_arg_0=0, var_68_arg_1=7, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=3, var_72_arg_0=3, var_73=0, var_73_arg_0=0, var_73_arg_1=3, var_74=0, var_74_arg_0=0, var_74_arg_1=0, 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=59, var_79_arg_0=1, var_79_arg_1=59, var_79_arg_2=0, var_82=3, var_83=1, var_83_arg_0=1, var_84=0, var_84_arg_0=0, var_84_arg_1=1, var_85=59, var_85_arg_0=0, var_85_arg_1=0, var_85_arg_2=59, 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=59, var_90_arg_0=1, var_90_arg_1=59, var_90_arg_2=59, 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=59, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=59, var_97=0, var_97_arg_0=0, var_98=1, var_98_arg_0=0, var_99=4294967295, var_99_arg_0=1, var_99_arg_1=59, var_99_arg_2=59] [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=2147483654, input_5=24, input_6=2, 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=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, 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=0, 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=0, next_435_arg_1=0, next_438_arg_1=0, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=0, state_113=0, state_12=0, state_128=0, state_132=0, state_18=0, state_185=0, 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=0, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=1, var_102_arg_0=2, var_103=9, var_103_arg_0=1, var_105=17, var_106=0, var_106_arg_0=0, var_107=0, var_107_arg_0=2, 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=2, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=0, var_116_arg_0=1, var_117=0, var_117_arg_0=0, var_117_arg_1=0, var_118=0, var_118_arg_0=0, var_119=2, var_119_arg_0=2, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=1, var_121_arg_0=2, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=1, var_123_arg_1=0, var_123_arg_2=1, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=0, var_127_arg_0=1, var_129=0, var_129_arg_0=0, var_129_arg_1=4294967295, var_130=0, var_130_arg_0=0, var_130_arg_1=0, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=18, var_138_arg_0=0, var_139=0, var_139_arg_0=0, var_14=0, var_140=0, var_140_arg_0=18, var_140_arg_1=0, var_141=1, var_141_arg_0=1, var_142=1, var_142_arg_0=0, var_142_arg_1=1, var_144=0, var_144_arg_0=9, var_145=20, var_145_arg_0=67, var_146=2, var_146_arg_0=0, var_146_arg_1=20, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=2, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=0, var_151_arg_0=1, var_151_arg_1=0, var_151_arg_2=0, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=254, var_154_arg_0=0, var_155=0, var_155_arg_0=0, var_155_arg_1=254, var_16=0, var_160=254, var_160_arg_0=0, var_160_arg_1=67, var_161=1, var_161_arg_0=254, var_161_arg_1=1, 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=1, var_186_arg_0=2, var_187=1, var_187_arg_0=1, var_188=2, var_188_arg_0=1, var_189=0, var_189_arg_0=0, var_189_arg_1=2, var_194=0, var_194_arg_0=0, var_195=0, var_195_arg_0=1, var_195_arg_1=0, var_196=0, var_196_arg_0=0, var_196_arg_1=0, var_20=15, var_201=1, var_201_arg_0=1, var_202=1, var_202_arg_0=1, var_202_arg_1=1, var_203=0, var_203_arg_0=0, var_203_arg_1=1, var_208=12, var_208_arg_0=12, var_209=0, var_209_arg_0=1, var_209_arg_1=12, var_21=0, var_210=0, var_210_arg_0=0, var_210_arg_1=0, var_215=1, var_215_arg_0=1, var_216=1, var_216_arg_0=1, var_216_arg_1=1, var_217=0, var_217_arg_0=0, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=1, var_223_arg_1=0, var_224=0, var_224_arg_0=0, var_224_arg_1=0, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=1, var_230_arg_1=1, var_231=0, var_231_arg_0=0, var_231_arg_1=1, var_236=0, var_236_arg_0=1, var_236_arg_1=16, var_237=0, var_237_arg_0=0, 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=1, var_243_arg_0=1, var_243_arg_1=1, var_244=0, var_244_arg_0=0, var_244_arg_1=1, var_249=0, var_249_arg_0=0, var_25=14, var_250=0, var_250_arg_0=1, var_250_arg_1=0, var_251=0, var_251_arg_0=0, var_251_arg_1=0, var_256=1, var_256_arg_0=1, var_257=1, var_257_arg_0=1, var_257_arg_1=1, var_258=0, var_258_arg_0=0, var_258_arg_1=1, var_26=0, var_263=1, var_263_arg_0=1, var_264=1, var_264_arg_0=1, var_264_arg_1=1, var_265=0, var_265_arg_0=0, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=1, var_271_arg_0=1, var_271_arg_1=1, var_272=0, var_272_arg_0=0, var_272_arg_1=1, var_277=2, var_277_arg_0=2, var_278=0, var_278_arg_0=1, var_278_arg_1=2, var_279=0, var_279_arg_0=0, var_279_arg_1=0, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=7, var_284_arg_0=7, var_285=0, var_285_arg_0=1, var_285_arg_1=7, var_286=0, var_286_arg_0=0, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=1, var_291_arg_0=1, var_292=1, var_292_arg_0=1, var_292_arg_1=1, var_293=0, var_293_arg_0=0, var_293_arg_1=1, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=1, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=0, var_300_arg_1=0, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=2, var_310_arg_0=2, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=16, var_329_arg_1=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=0, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=0, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=22, var_353_arg_0=0, var_353_arg_1=67, var_354=0, var_354_arg_0=22, var_354_arg_1=1, var_355=1, var_355_arg_0=0, 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=1, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=0, var_377_arg_0=1, var_377_arg_1=0, var_377_arg_2=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=11, var_410=0, var_410_arg_0=1, var_410_arg_1=0, var_410_arg_2=0, var_412=59, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=59, var_413=0, var_413_arg_0=1, var_413_arg_1=0, var_413_arg_2=59, 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=1, var_416_arg_1=0, var_416_arg_2=0, var_418=59, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=59, var_419=0, var_419_arg_0=1, var_419_arg_1=0, var_419_arg_2=59, var_41_arg_0=11, 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=1, var_422_arg_1=0, var_422_arg_2=0, var_424=59, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=59, var_425=0, var_425_arg_0=1, var_425_arg_1=0, var_425_arg_2=59, var_427=0, var_427_arg_0=0, var_428=2, var_428_arg_0=2, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=11, var_43=0, var_430=1, var_430_arg_0=2, var_430_arg_1=1, var_431=0, var_431_arg_0=1, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=0, var_433_arg_1=1, var_433_arg_2=1, var_434=0, var_434_arg_0=1, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=0, var_437_arg_0=1, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=2, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=1, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=1, var_443_arg_1=0, var_443_arg_2=0, var_446=2, var_446_arg_0=1, var_446_arg_1=2, var_446_arg_2=2, var_447=0, var_447_arg_0=1, var_447_arg_1=0, var_447_arg_2=2, var_45=10, var_46=29, var_46_arg_0=29, var_47=0, var_47_arg_0=0, var_47_arg_1=29, 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=21, var_56_arg_0=21, var_57=0, var_57_arg_0=0, var_57_arg_1=21, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=28, var_62_arg_0=28, var_63=0, var_63_arg_0=0, var_63_arg_1=28, var_64=0, var_64_arg_0=0, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=7, var_67_arg_0=7, var_68=0, var_68_arg_0=0, var_68_arg_1=7, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=3, var_72_arg_0=3, var_73=0, var_73_arg_0=0, var_73_arg_1=3, var_74=0, var_74_arg_0=0, var_74_arg_1=0, 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=59, var_79_arg_0=1, var_79_arg_1=59, var_79_arg_2=0, var_82=3, var_83=1, var_83_arg_0=1, var_84=0, var_84_arg_0=0, var_84_arg_1=1, var_85=59, var_85_arg_0=0, var_85_arg_1=0, var_85_arg_2=59, 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=59, var_90_arg_0=1, var_90_arg_1=59, var_90_arg_2=59, 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=59, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=59, var_97=0, var_97_arg_0=0, var_98=1, var_98_arg_0=0, var_99=4294967295, var_99_arg_0=1, var_99_arg_1=59, var_99_arg_2=59] [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=2147483654, input_5=24, input_6=2, 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=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, 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=0, 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=0, next_435_arg_1=0, next_438_arg_1=0, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=0, state_113=0, state_12=0, state_128=0, state_132=0, state_18=0, state_185=0, 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=0, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=1, var_102_arg_0=2, var_103=9, var_103_arg_0=1, var_105=17, var_106=254, var_106_arg_0=254, var_107=0, var_107_arg_0=0, var_107_arg_1=254, 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=2, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=0, var_116_arg_0=1, var_117=0, var_117_arg_0=0, var_117_arg_1=0, var_118=0, var_118_arg_0=0, var_119=2, var_119_arg_0=2, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=1, var_121_arg_0=2, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=1, var_123_arg_1=0, var_123_arg_2=1, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=0, var_127_arg_0=1, var_129=0, var_129_arg_0=0, var_129_arg_1=4294967295, var_130=0, var_130_arg_0=0, var_130_arg_1=0, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=23, var_138_arg_0=0, var_139=1, var_139_arg_0=2, var_14=0, var_140=1, var_140_arg_0=23, var_140_arg_1=1, var_141=1, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=1, var_144=0, var_144_arg_0=9, var_145=20, var_145_arg_0=67, var_146=2, var_146_arg_0=0, var_146_arg_1=20, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=2, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=0, var_151_arg_0=1, var_151_arg_1=0, var_151_arg_2=0, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=254, var_154_arg_0=0, var_155=0, var_155_arg_0=0, var_155_arg_1=254, var_16=0, var_160=254, var_160_arg_0=0, var_160_arg_1=67, var_161=1, var_161_arg_0=254, var_161_arg_1=1, 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=1, var_186_arg_0=2, var_187=1, var_187_arg_0=1, var_188=2, var_188_arg_0=1, var_189=0, var_189_arg_0=0, var_189_arg_1=2, var_194=0, var_194_arg_0=0, var_195=0, var_195_arg_0=1, var_195_arg_1=0, var_196=0, var_196_arg_0=0, var_196_arg_1=0, var_20=15, var_201=1, var_201_arg_0=1, var_202=1, var_202_arg_0=1, var_202_arg_1=1, var_203=0, var_203_arg_0=0, var_203_arg_1=1, var_208=12, var_208_arg_0=12, var_209=0, var_209_arg_0=1, var_209_arg_1=12, var_21=0, var_210=0, var_210_arg_0=0, var_210_arg_1=0, var_215=1, var_215_arg_0=1, var_216=1, var_216_arg_0=1, var_216_arg_1=1, var_217=0, var_217_arg_0=0, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=1, var_223_arg_1=0, var_224=0, var_224_arg_0=0, var_224_arg_1=0, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=1, var_230_arg_1=1, var_231=0, var_231_arg_0=0, var_231_arg_1=1, var_236=0, var_236_arg_0=1, var_236_arg_1=16, var_237=0, var_237_arg_0=0, 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=1, var_243_arg_0=1, var_243_arg_1=1, var_244=0, var_244_arg_0=0, var_244_arg_1=1, var_249=0, var_249_arg_0=0, var_25=14, var_250=0, var_250_arg_0=1, var_250_arg_1=0, var_251=0, var_251_arg_0=0, var_251_arg_1=0, var_256=1, var_256_arg_0=1, var_257=1, var_257_arg_0=1, var_257_arg_1=1, var_258=0, var_258_arg_0=0, var_258_arg_1=1, var_26=0, var_263=1, var_263_arg_0=1, var_264=1, var_264_arg_0=1, var_264_arg_1=1, var_265=0, var_265_arg_0=0, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=1, var_271_arg_0=1, var_271_arg_1=1, var_272=0, var_272_arg_0=0, var_272_arg_1=1, var_277=2, var_277_arg_0=2, var_278=0, var_278_arg_0=1, var_278_arg_1=2, var_279=0, var_279_arg_0=0, var_279_arg_1=0, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=7, var_284_arg_0=7, var_285=0, var_285_arg_0=1, var_285_arg_1=7, var_286=0, var_286_arg_0=0, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=1, var_291_arg_0=1, var_292=1, var_292_arg_0=1, var_292_arg_1=1, var_293=0, var_293_arg_0=0, var_293_arg_1=1, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=1, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=0, var_300_arg_1=0, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=2, var_310_arg_0=2, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=16, var_329_arg_1=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=0, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=0, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=22, var_353_arg_0=0, var_353_arg_1=67, var_354=0, var_354_arg_0=22, var_354_arg_1=1, var_355=1, var_355_arg_0=0, 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=1, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=0, var_377_arg_0=1, var_377_arg_1=0, var_377_arg_2=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=11, var_410=0, var_410_arg_0=1, var_410_arg_1=0, var_410_arg_2=0, var_412=59, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=59, var_413=0, var_413_arg_0=1, var_413_arg_1=0, var_413_arg_2=59, 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=1, var_416_arg_1=0, var_416_arg_2=0, var_418=59, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=59, var_419=0, var_419_arg_0=1, var_419_arg_1=0, var_419_arg_2=59, var_41_arg_0=11, 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=1, var_422_arg_1=0, var_422_arg_2=0, var_424=59, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=59, var_425=0, var_425_arg_0=1, var_425_arg_1=0, var_425_arg_2=59, var_427=0, var_427_arg_0=0, var_428=2, var_428_arg_0=2, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=11, var_43=0, var_430=1, var_430_arg_0=2, var_430_arg_1=1, var_431=0, var_431_arg_0=1, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=0, var_433_arg_1=1, var_433_arg_2=1, var_434=0, var_434_arg_0=1, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=0, var_437_arg_0=1, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=2, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=1, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=1, var_443_arg_1=0, var_443_arg_2=0, var_446=2, var_446_arg_0=1, var_446_arg_1=2, var_446_arg_2=2, var_447=0, var_447_arg_0=1, var_447_arg_1=0, var_447_arg_2=2, var_45=10, var_46=29, var_46_arg_0=29, var_47=0, var_47_arg_0=0, var_47_arg_1=29, 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=21, var_56_arg_0=21, var_57=0, var_57_arg_0=0, var_57_arg_1=21, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=28, var_62_arg_0=28, var_63=0, var_63_arg_0=0, var_63_arg_1=28, var_64=0, var_64_arg_0=0, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=7, var_67_arg_0=7, var_68=0, var_68_arg_0=0, var_68_arg_1=7, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=3, var_72_arg_0=3, var_73=0, var_73_arg_0=0, var_73_arg_1=3, var_74=0, var_74_arg_0=0, var_74_arg_1=0, 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=59, var_79_arg_0=1, var_79_arg_1=59, var_79_arg_2=0, var_82=3, var_83=1, var_83_arg_0=1, var_84=0, var_84_arg_0=0, var_84_arg_1=1, var_85=59, var_85_arg_0=0, var_85_arg_1=0, var_85_arg_2=59, 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=59, var_90_arg_0=1, var_90_arg_1=59, var_90_arg_2=59, 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=59, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=59, var_97=0, var_97_arg_0=0, var_98=1, var_98_arg_0=0, var_99=4294967295, var_99_arg_0=1, var_99_arg_1=59, var_99_arg_2=59] [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=2147483654, input_5=24, input_6=2, 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=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, 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=0, 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=0, next_435_arg_1=0, next_438_arg_1=0, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=0, state_113=0, state_12=0, state_128=0, state_132=0, state_18=0, state_185=0, 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=0, state_75=0, state_80=0, state_86=0, state_91=0, state_96=0, var_102=1, var_102_arg_0=2, var_103=9, var_103_arg_0=1, var_105=17, var_106=254, var_106_arg_0=254, var_107=0, var_107_arg_0=0, var_107_arg_1=254, 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=2, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=0, var_116_arg_0=1, var_117=0, var_117_arg_0=0, var_117_arg_1=0, var_118=0, var_118_arg_0=0, var_119=2, var_119_arg_0=2, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=1, var_121_arg_0=2, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=1, var_123_arg_1=0, var_123_arg_2=1, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=0, var_127_arg_0=1, var_129=0, var_129_arg_0=0, var_129_arg_1=4294967295, var_130=0, var_130_arg_0=0, var_130_arg_1=0, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=23, var_138_arg_0=0, var_139=1, var_139_arg_0=2, var_14=0, var_140=1, var_140_arg_0=23, var_140_arg_1=1, var_141=1, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=1, var_144=0, var_144_arg_0=9, var_145=20, var_145_arg_0=67, var_146=2, var_146_arg_0=0, var_146_arg_1=20, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=2, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=0, var_151_arg_0=1, var_151_arg_1=0, var_151_arg_2=0, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=254, var_154_arg_0=0, var_155=0, var_155_arg_0=0, var_155_arg_1=254, var_16=0, var_160=254, var_160_arg_0=0, var_160_arg_1=67, var_161=1, var_161_arg_0=254, var_161_arg_1=1, 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=1, var_186_arg_0=2, var_187=1, var_187_arg_0=1, var_188=2, var_188_arg_0=1, var_189=0, var_189_arg_0=0, var_189_arg_1=2, var_194=0, var_194_arg_0=0, var_195=0, var_195_arg_0=1, var_195_arg_1=0, var_196=0, var_196_arg_0=0, var_196_arg_1=0, var_20=15, var_201=1, var_201_arg_0=1, var_202=1, var_202_arg_0=1, var_202_arg_1=1, var_203=0, var_203_arg_0=0, var_203_arg_1=1, var_208=12, var_208_arg_0=12, var_209=0, var_209_arg_0=1, var_209_arg_1=12, var_21=0, var_210=0, var_210_arg_0=0, var_210_arg_1=0, var_215=1, var_215_arg_0=1, var_216=1, var_216_arg_0=1, var_216_arg_1=1, var_217=0, var_217_arg_0=0, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=1, var_223_arg_1=0, var_224=0, var_224_arg_0=0, var_224_arg_1=0, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=1, var_230_arg_1=1, var_231=0, var_231_arg_0=0, var_231_arg_1=1, var_236=0, var_236_arg_0=1, var_236_arg_1=16, var_237=0, var_237_arg_0=0, 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=1, var_243_arg_0=1, var_243_arg_1=1, var_244=0, var_244_arg_0=0, var_244_arg_1=1, var_249=0, var_249_arg_0=0, var_25=14, var_250=0, var_250_arg_0=1, var_250_arg_1=0, var_251=0, var_251_arg_0=0, var_251_arg_1=0, var_256=1, var_256_arg_0=1, var_257=1, var_257_arg_0=1, var_257_arg_1=1, var_258=0, var_258_arg_0=0, var_258_arg_1=1, var_26=0, var_263=1, var_263_arg_0=1, var_264=1, var_264_arg_0=1, var_264_arg_1=1, var_265=0, var_265_arg_0=0, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=1, var_271_arg_0=1, var_271_arg_1=1, var_272=0, var_272_arg_0=0, var_272_arg_1=1, var_277=2, var_277_arg_0=2, var_278=0, var_278_arg_0=1, var_278_arg_1=2, var_279=0, var_279_arg_0=0, var_279_arg_1=0, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=7, var_284_arg_0=7, var_285=0, var_285_arg_0=1, var_285_arg_1=7, var_286=0, var_286_arg_0=0, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=1, var_291_arg_0=1, var_292=1, var_292_arg_0=1, var_292_arg_1=1, var_293=0, var_293_arg_0=0, var_293_arg_1=1, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=1, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=0, var_300_arg_1=0, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=2, var_310_arg_0=2, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=16, var_329_arg_1=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=0, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=0, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=22, var_353_arg_0=0, var_353_arg_1=67, var_354=0, var_354_arg_0=22, var_354_arg_1=1, var_355=1, var_355_arg_0=0, 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=1, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=0, var_377_arg_0=1, var_377_arg_1=0, var_377_arg_2=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=11, var_410=0, var_410_arg_0=1, var_410_arg_1=0, var_410_arg_2=0, var_412=59, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=59, var_413=0, var_413_arg_0=1, var_413_arg_1=0, var_413_arg_2=59, 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=1, var_416_arg_1=0, var_416_arg_2=0, var_418=59, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=59, var_419=0, var_419_arg_0=1, var_419_arg_1=0, var_419_arg_2=59, var_41_arg_0=11, 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=1, var_422_arg_1=0, var_422_arg_2=0, var_424=59, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=59, var_425=0, var_425_arg_0=1, var_425_arg_1=0, var_425_arg_2=59, var_427=0, var_427_arg_0=0, var_428=2, var_428_arg_0=2, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=11, var_43=0, var_430=1, var_430_arg_0=2, var_430_arg_1=1, var_431=0, var_431_arg_0=1, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=0, var_433_arg_1=1, var_433_arg_2=1, var_434=0, var_434_arg_0=1, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=0, var_437_arg_0=1, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=2, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=1, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=1, var_443_arg_1=0, var_443_arg_2=0, var_446=2, var_446_arg_0=1, var_446_arg_1=2, var_446_arg_2=2, var_447=0, var_447_arg_0=1, var_447_arg_1=0, var_447_arg_2=2, var_45=10, var_46=29, var_46_arg_0=29, var_47=0, var_47_arg_0=0, var_47_arg_1=29, 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=21, var_56_arg_0=21, var_57=0, var_57_arg_0=0, var_57_arg_1=21, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=28, var_62_arg_0=28, var_63=0, var_63_arg_0=0, var_63_arg_1=28, var_64=0, var_64_arg_0=0, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=7, var_67_arg_0=7, var_68=0, var_68_arg_0=0, var_68_arg_1=7, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=3, var_72_arg_0=3, var_73=0, var_73_arg_0=0, var_73_arg_1=3, var_74=0, var_74_arg_0=0, var_74_arg_1=0, 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=59, var_79_arg_0=1, var_79_arg_1=59, var_79_arg_2=0, var_82=3, var_83=1, var_83_arg_0=1, var_84=0, var_84_arg_0=0, var_84_arg_1=1, var_85=59, var_85_arg_0=0, var_85_arg_1=0, var_85_arg_2=59, 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=59, var_90_arg_0=1, var_90_arg_1=59, var_90_arg_2=59, 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=59, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=59, var_97=0, var_97_arg_0=0, var_98=1, var_98_arg_0=0, var_99=4294967295, var_99_arg_0=1, var_99_arg_1=59, var_99_arg_2=59] [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=2147483654, input_5=24, input_6=2, 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=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, 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=0, 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=0, next_435_arg_1=0, next_438_arg_1=0, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=0, state_113=0, state_12=0, state_128=0, state_132=0, state_18=0, state_185=0, 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=0, 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=19, var_103_arg_0=0, var_105=17, var_106=254, var_106_arg_0=254, var_107=0, var_107_arg_0=0, var_107_arg_1=254, 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=2, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=0, var_116_arg_0=1, var_117=0, var_117_arg_0=0, var_117_arg_1=0, var_118=0, var_118_arg_0=0, var_119=2, var_119_arg_0=2, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=1, var_121_arg_0=2, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=1, var_123_arg_1=0, var_123_arg_2=1, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=0, var_127_arg_0=1, var_129=0, var_129_arg_0=0, var_129_arg_1=4294967295, var_130=0, var_130_arg_0=0, var_130_arg_1=0, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=23, var_138_arg_0=0, var_139=1, var_139_arg_0=2, var_14=0, var_140=1, var_140_arg_0=23, var_140_arg_1=1, var_141=1, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=1, var_144=0, var_144_arg_0=19, var_145=1, var_145_arg_0=24, var_146=1, var_146_arg_0=0, 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=0, var_15=16, var_151=0, var_151_arg_0=1, var_151_arg_1=0, var_151_arg_2=0, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=254, var_154_arg_0=0, var_155=0, var_155_arg_0=0, var_155_arg_1=254, var_16=0, var_160=254, var_160_arg_0=0, var_160_arg_1=67, var_161=1, var_161_arg_0=254, var_161_arg_1=1, 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=1, var_186_arg_0=2, var_187=1, var_187_arg_0=1, var_188=2, var_188_arg_0=1, var_189=0, var_189_arg_0=0, var_189_arg_1=2, var_194=0, var_194_arg_0=0, var_195=0, var_195_arg_0=1, var_195_arg_1=0, var_196=0, var_196_arg_0=0, var_196_arg_1=0, var_20=15, var_201=1, var_201_arg_0=1, var_202=1, var_202_arg_0=1, var_202_arg_1=1, var_203=0, var_203_arg_0=0, var_203_arg_1=1, var_208=12, var_208_arg_0=12, var_209=0, var_209_arg_0=1, var_209_arg_1=12, var_21=0, var_210=0, var_210_arg_0=0, var_210_arg_1=0, var_215=1, var_215_arg_0=1, var_216=1, var_216_arg_0=1, var_216_arg_1=1, var_217=0, var_217_arg_0=0, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=1, var_223_arg_1=0, var_224=0, var_224_arg_0=0, var_224_arg_1=0, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=1, var_230_arg_1=1, var_231=0, var_231_arg_0=0, var_231_arg_1=1, var_236=0, var_236_arg_0=1, var_236_arg_1=16, var_237=0, var_237_arg_0=0, 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=1, var_243_arg_0=1, var_243_arg_1=1, var_244=0, var_244_arg_0=0, var_244_arg_1=1, var_249=0, var_249_arg_0=0, var_25=14, var_250=0, var_250_arg_0=1, var_250_arg_1=0, var_251=0, var_251_arg_0=0, var_251_arg_1=0, var_256=1, var_256_arg_0=1, var_257=1, var_257_arg_0=1, var_257_arg_1=1, var_258=0, var_258_arg_0=0, var_258_arg_1=1, var_26=0, var_263=1, var_263_arg_0=1, var_264=1, var_264_arg_0=1, var_264_arg_1=1, var_265=0, var_265_arg_0=0, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=1, var_271_arg_0=1, var_271_arg_1=1, var_272=0, var_272_arg_0=0, var_272_arg_1=1, var_277=2, var_277_arg_0=2, var_278=0, var_278_arg_0=1, var_278_arg_1=2, var_279=0, var_279_arg_0=0, var_279_arg_1=0, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=7, var_284_arg_0=7, var_285=0, var_285_arg_0=1, var_285_arg_1=7, var_286=0, var_286_arg_0=0, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=1, var_291_arg_0=1, var_292=1, var_292_arg_0=1, var_292_arg_1=1, var_293=0, var_293_arg_0=0, var_293_arg_1=1, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=1, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=0, var_300_arg_1=0, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=2, var_310_arg_0=2, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=16, var_329_arg_1=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=0, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=0, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=22, var_353_arg_0=0, var_353_arg_1=67, var_354=0, var_354_arg_0=22, var_354_arg_1=1, var_355=1, var_355_arg_0=0, 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=1, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=0, var_377_arg_0=1, var_377_arg_1=0, var_377_arg_2=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=11, var_410=0, var_410_arg_0=1, var_410_arg_1=0, var_410_arg_2=0, var_412=59, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=59, var_413=0, var_413_arg_0=1, var_413_arg_1=0, var_413_arg_2=59, 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=1, var_416_arg_1=0, var_416_arg_2=0, var_418=59, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=59, var_419=0, var_419_arg_0=1, var_419_arg_1=0, var_419_arg_2=59, var_41_arg_0=11, 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=1, var_422_arg_1=0, var_422_arg_2=0, var_424=59, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=59, var_425=0, var_425_arg_0=1, var_425_arg_1=0, var_425_arg_2=59, var_427=0, var_427_arg_0=0, var_428=2, var_428_arg_0=2, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=11, var_43=0, var_430=1, var_430_arg_0=2, var_430_arg_1=1, var_431=0, var_431_arg_0=1, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=0, var_433_arg_1=1, var_433_arg_2=1, var_434=0, var_434_arg_0=1, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=0, var_437_arg_0=1, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=2, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=1, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=1, var_443_arg_1=0, var_443_arg_2=0, var_446=2, var_446_arg_0=1, var_446_arg_1=2, var_446_arg_2=2, var_447=0, var_447_arg_0=1, var_447_arg_1=0, var_447_arg_2=2, var_45=10, var_46=29, var_46_arg_0=29, var_47=0, var_47_arg_0=0, var_47_arg_1=29, 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=21, var_56_arg_0=21, var_57=0, var_57_arg_0=0, var_57_arg_1=21, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=28, var_62_arg_0=28, var_63=0, var_63_arg_0=0, var_63_arg_1=28, var_64=0, var_64_arg_0=0, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=7, var_67_arg_0=7, var_68=0, var_68_arg_0=0, var_68_arg_1=7, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=3, var_72_arg_0=3, var_73=0, var_73_arg_0=0, var_73_arg_1=3, var_74=0, var_74_arg_0=0, var_74_arg_1=0, 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=59, var_79_arg_0=1, var_79_arg_1=59, var_79_arg_2=0, var_82=3, var_83=1, var_83_arg_0=1, var_84=0, var_84_arg_0=0, var_84_arg_1=1, var_85=59, var_85_arg_0=0, var_85_arg_1=0, var_85_arg_2=59, 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=59, var_90_arg_0=1, var_90_arg_1=59, var_90_arg_2=59, 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=59, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=59, var_97=0, var_97_arg_0=0, var_98=1, var_98_arg_0=0, var_99=4294967295, var_99_arg_0=1, var_99_arg_1=59, var_99_arg_2=59] [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=2147483654, input_5=24, input_6=2, 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=4294967295, 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=2147483648, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, 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=0, 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=0, next_435_arg_1=0, next_438_arg_1=0, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=0, state_10=0, state_101=0, state_109=0, state_110=0, state_113=0, state_12=0, state_128=0, state_132=0, state_18=0, state_185=0, 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=0, 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=19, var_103_arg_0=0, var_105=17, var_106=254, var_106_arg_0=254, var_107=0, var_107_arg_0=0, var_107_arg_1=254, 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=2, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=0, var_116_arg_0=1, var_117=0, var_117_arg_0=0, var_117_arg_1=0, var_118=0, var_118_arg_0=0, var_119=2, var_119_arg_0=2, var_119_arg_1=0, var_120=1, var_120_arg_0=1, var_121=1, var_121_arg_0=2, var_121_arg_1=1, var_122=0, var_123=0, var_123_arg_0=1, var_123_arg_1=0, var_123_arg_2=1, var_124=0, var_124_arg_0=0, var_125=1, var_125_arg_0=0, var_126=1, var_126_arg_0=1, var_126_arg_1=1, var_127=0, var_127_arg_0=1, var_129=0, var_129_arg_0=0, var_129_arg_1=4294967295, var_130=0, var_130_arg_0=0, var_130_arg_1=0, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=23, var_138_arg_0=0, var_139=1, var_139_arg_0=2, var_14=0, var_140=1, var_140_arg_0=23, var_140_arg_1=1, var_141=1, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=1, var_144=0, var_144_arg_0=19, var_145=1, var_145_arg_0=24, var_146=1, var_146_arg_0=0, 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=0, var_15=16, var_151=0, var_151_arg_0=1, var_151_arg_1=0, var_151_arg_2=0, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=254, var_154_arg_0=0, var_155=0, var_155_arg_0=0, var_155_arg_1=254, var_16=0, var_160=254, var_160_arg_0=0, var_160_arg_1=67, var_161=1, var_161_arg_0=254, var_161_arg_1=1, 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=1, var_186_arg_0=2, var_187=1, var_187_arg_0=1, var_188=2, var_188_arg_0=1, var_189=0, var_189_arg_0=0, var_189_arg_1=2, var_194=0, var_194_arg_0=0, var_195=0, var_195_arg_0=1, var_195_arg_1=0, var_196=0, var_196_arg_0=0, var_196_arg_1=0, var_20=15, var_201=1, var_201_arg_0=1, var_202=1, var_202_arg_0=1, var_202_arg_1=1, var_203=0, var_203_arg_0=0, var_203_arg_1=1, var_208=12, var_208_arg_0=12, var_209=0, var_209_arg_0=1, var_209_arg_1=12, var_21=0, var_210=0, var_210_arg_0=0, var_210_arg_1=0, var_215=1, var_215_arg_0=1, var_216=1, var_216_arg_0=1, var_216_arg_1=1, var_217=0, var_217_arg_0=0, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=1, var_223_arg_1=0, var_224=0, var_224_arg_0=0, var_224_arg_1=0, var_229=1, var_229_arg_0=1, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=1, var_230_arg_1=1, var_231=0, var_231_arg_0=0, var_231_arg_1=1, var_236=0, var_236_arg_0=1, var_236_arg_1=16, var_237=0, var_237_arg_0=0, 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=1, var_243_arg_0=1, var_243_arg_1=1, var_244=0, var_244_arg_0=0, var_244_arg_1=1, var_249=0, var_249_arg_0=0, var_25=14, var_250=0, var_250_arg_0=1, var_250_arg_1=0, var_251=0, var_251_arg_0=0, var_251_arg_1=0, var_256=1, var_256_arg_0=1, var_257=1, var_257_arg_0=1, var_257_arg_1=1, var_258=0, var_258_arg_0=0, var_258_arg_1=1, var_26=0, var_263=1, var_263_arg_0=1, var_264=1, var_264_arg_0=1, var_264_arg_1=1, var_265=0, var_265_arg_0=0, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=1, var_270_arg_0=1, var_271=1, var_271_arg_0=1, var_271_arg_1=1, var_272=0, var_272_arg_0=0, var_272_arg_1=1, var_277=2, var_277_arg_0=2, var_278=0, var_278_arg_0=1, var_278_arg_1=2, var_279=0, var_279_arg_0=0, var_279_arg_1=0, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_284=7, var_284_arg_0=7, var_285=0, var_285_arg_0=1, var_285_arg_1=7, var_286=0, var_286_arg_0=0, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=0, var_28_arg_2=0, var_291=1, var_291_arg_0=1, var_292=1, var_292_arg_0=1, var_292_arg_1=1, var_293=0, var_293_arg_0=0, var_293_arg_1=1, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=1, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=0, var_300_arg_1=0, var_303=1, var_303_arg_0=1, var_304=1, var_304_arg_0=0, var_304_arg_1=1, var_309=0, var_309_arg_0=0, var_31=0, var_310=2, var_310_arg_0=2, var_310_arg_1=0, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=16, var_329_arg_1=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=0, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=0, var_33_arg_0=1, var_33_arg_1=0, var_33_arg_2=0, var_341=1, var_341_arg_0=1, var_341_arg_1=0, var_35=12, var_353=22, var_353_arg_0=0, var_353_arg_1=67, var_354=0, var_354_arg_0=22, var_354_arg_1=1, var_355=1, var_355_arg_0=0, 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=1, var_374_arg_1=0, var_374_arg_2=0, var_376=1, var_376_arg_0=1, var_376_arg_1=1, var_376_arg_2=0, var_377=0, var_377_arg_0=1, var_377_arg_1=0, var_377_arg_2=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, 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=1, var_407_arg_1=0, var_407_arg_2=0, var_409=0, var_409_arg_0=0, var_409_arg_1=0, var_409_arg_2=0, var_41=11, var_410=0, var_410_arg_0=1, var_410_arg_1=0, var_410_arg_2=0, var_412=59, var_412_arg_0=0, var_412_arg_1=0, var_412_arg_2=59, var_413=0, var_413_arg_0=1, var_413_arg_1=0, var_413_arg_2=59, 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=1, var_416_arg_1=0, var_416_arg_2=0, var_418=59, var_418_arg_0=0, var_418_arg_1=0, var_418_arg_2=59, var_419=0, var_419_arg_0=1, var_419_arg_1=0, var_419_arg_2=59, var_41_arg_0=11, 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=1, var_422_arg_1=0, var_422_arg_2=0, var_424=59, var_424_arg_0=0, var_424_arg_1=0, var_424_arg_2=59, var_425=0, var_425_arg_0=1, var_425_arg_1=0, var_425_arg_2=59, var_427=0, var_427_arg_0=0, var_428=2, var_428_arg_0=2, var_428_arg_1=0, var_429=1, var_429_arg_0=1, var_42_arg_0=0, var_42_arg_1=11, var_43=0, var_430=1, var_430_arg_0=2, var_430_arg_1=1, var_431=0, var_431_arg_0=1, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=0, var_433_arg_1=1, var_433_arg_2=1, var_434=0, var_434_arg_0=1, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=0, var_437=0, var_437_arg_0=1, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=2, var_43_arg_0=0, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=1, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=0, var_442_arg_2=0, var_443=0, var_443_arg_0=1, var_443_arg_1=0, var_443_arg_2=0, var_446=2, var_446_arg_0=1, var_446_arg_1=2, var_446_arg_2=2, var_447=0, var_447_arg_0=1, var_447_arg_1=0, var_447_arg_2=2, var_45=10, var_46=29, var_46_arg_0=29, var_47=0, var_47_arg_0=0, var_47_arg_1=29, 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=21, var_56_arg_0=21, var_57=0, var_57_arg_0=0, var_57_arg_1=21, var_58=0, var_58_arg_0=0, var_58_arg_1=0, var_58_arg_2=0, var_61=7, var_62=28, var_62_arg_0=28, var_63=0, var_63_arg_0=0, var_63_arg_1=28, var_64=0, var_64_arg_0=0, var_64_arg_1=0, var_64_arg_2=0, var_66=6, var_67=7, var_67_arg_0=7, var_68=0, var_68_arg_0=0, var_68_arg_1=7, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=3, var_72_arg_0=3, var_73=0, var_73_arg_0=0, var_73_arg_1=3, var_74=0, var_74_arg_0=0, var_74_arg_1=0, 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=59, var_79_arg_0=1, var_79_arg_1=59, var_79_arg_2=0, var_82=3, var_83=1, var_83_arg_0=1, var_84=0, var_84_arg_0=0, var_84_arg_1=1, var_85=59, var_85_arg_0=0, var_85_arg_1=0, var_85_arg_2=59, 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=59, var_90_arg_0=1, var_90_arg_1=59, var_90_arg_2=59, 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=59, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=59, var_97=0, var_97_arg_0=0, var_98=1, var_98_arg_0=0, var_99=4294967295, var_99_arg_0=1, var_99_arg_1=59, var_99_arg_2=59] [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: 40.7s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 2.4s 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, 0.1s 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, 18.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 193 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 02:23:24,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/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_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/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_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/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_b1c29715-10e9-446e-b05e-d51ea1be0627/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 e8ab3fe59f7525e54ab84b33a11a9afed070601def864345721dd45b012e469e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:23:26,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:23:26,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:23:26,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:23:26,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:23:26,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:23:26,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:23:26,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:23:27,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:23:27,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:23:27,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:23:27,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:23:27,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:23:27,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:23:27,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:23:27,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:23:27,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:23:27,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:23:27,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:23:27,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:23:27,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:23:27,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:23:27,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:23:27,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:23:27,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:23:27,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:23:27,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:23:27,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:23:27,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:23:27,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:23:27,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:23:27,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:23:27,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:23:27,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:23:27,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:23:27,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:23:27,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:23:27,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:23:27,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:23:27,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:23:27,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:23:27,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 02:23:27,112 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:23:27,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:23:27,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:23:27,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:23:27,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:23:27,115 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:23:27,115 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:23:27,115 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:23:27,115 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:23:27,116 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:23:27,117 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:23:27,117 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:23:27,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:23:27,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:23:27,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:23:27,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:23:27,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:23:27,119 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:23:27,119 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 02:23:27,120 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 02:23:27,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:23:27,120 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:23:27,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:23:27,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:23:27,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 02:23:27,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:23:27,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:23:27,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:23:27,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:23:27,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:23:27,122 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 02:23:27,122 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 02:23:27,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:23:27,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:23:27,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 02:23:27,123 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_b1c29715-10e9-446e-b05e-d51ea1be0627/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8ab3fe59f7525e54ab84b33a11a9afed070601def864345721dd45b012e469e [2022-11-03 02:23:27,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:23:27,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:23:27,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:23:27,540 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:23:27,541 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:23:27,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2022-11-03 02:23:27,629 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/data/96c84918d/788227c43c514e16b003d7bbff673577/FLAGe09c5f097 [2022-11-03 02:23:28,315 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:23:28,316 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2022-11-03 02:23:28,338 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/data/96c84918d/788227c43c514e16b003d7bbff673577/FLAGe09c5f097 [2022-11-03 02:23:28,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/data/96c84918d/788227c43c514e16b003d7bbff673577 [2022-11-03 02:23:28,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:23:28,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:23:28,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:23:28,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:23:28,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:23:28,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:23:28" (1/1) ... [2022-11-03 02:23:28,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b1f4c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:28, skipping insertion in model container [2022-11-03 02:23:28,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:23:28" (1/1) ... [2022-11-03 02:23:28,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:23:28,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:23:28,833 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_b1c29715-10e9-446e-b05e-d51ea1be0627/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c[1116,1129] [2022-11-03 02:23:29,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:23:29,143 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:23:29,164 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_b1c29715-10e9-446e-b05e-d51ea1be0627/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c[1116,1129] [2022-11-03 02:23:29,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:23:29,262 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:23:29,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29 WrapperNode [2022-11-03 02:23:29,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:23:29,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:23:29,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:23:29,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:23:29,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (1/1) ... [2022-11-03 02:23:29,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (1/1) ... [2022-11-03 02:23:29,414 INFO L138 Inliner]: procedures = 11, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1142 [2022-11-03 02:23:29,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:23:29,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:23:29,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:23:29,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:23:29,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (1/1) ... [2022-11-03 02:23:29,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (1/1) ... [2022-11-03 02:23:29,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (1/1) ... [2022-11-03 02:23:29,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (1/1) ... [2022-11-03 02:23:29,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (1/1) ... [2022-11-03 02:23:29,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (1/1) ... [2022-11-03 02:23:29,513 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (1/1) ... [2022-11-03 02:23:29,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (1/1) ... [2022-11-03 02:23:29,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:23:29,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:23:29,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:23:29,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:23:29,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (1/1) ... [2022-11-03 02:23:29,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:23:29,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:29,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:23:29,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:23:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:23:29,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:23:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:23:29,657 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:23:29,987 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:23:29,989 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:23:30,996 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:23:31,004 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:23:31,004 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:23:31,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:23:31 BoogieIcfgContainer [2022-11-03 02:23:31,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:23:31,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:23:31,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:23:31,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:23:31,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:23:28" (1/3) ... [2022-11-03 02:23:31,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447dc0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:23:31, skipping insertion in model container [2022-11-03 02:23:31,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:29" (2/3) ... [2022-11-03 02:23:31,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447dc0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:23:31, skipping insertion in model container [2022-11-03 02:23:31,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:23:31" (3/3) ... [2022-11-03 02:23:31,015 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2022-11-03 02:23:31,034 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:23:31,034 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:23:31,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:23:31,090 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;@328b6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:23:31,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:23:31,095 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 02:23:31,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:31,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:31,119 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 02:23:31,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:31,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:31,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1063607004, now seen corresponding path program 1 times [2022-11-03 02:23:31,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:31,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210969449] [2022-11-03 02:23:31,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:31,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:31,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:31,153 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:31,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 02:23:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:31,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 02:23:31,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:31,709 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 02:23:31,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:31,710 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:31,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210969449] [2022-11-03 02:23:31,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210969449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:31,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:31,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:23:31,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139560441] [2022-11-03 02:23:31,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:31,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:23:31,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:31,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:23:31,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:23:31,758 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 02:23:31,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:31,793 INFO L93 Difference]: Finished difference Result 304 states and 452 transitions. [2022-11-03 02:23:31,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:23:31,799 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 02:23:31,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:31,810 INFO L225 Difference]: With dead ends: 304 [2022-11-03 02:23:31,811 INFO L226 Difference]: Without dead ends: 151 [2022-11-03 02:23:31,815 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 02:23:31,823 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 02:23:31,825 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 02:23:31,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-03 02:23:31,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-11-03 02:23:31,886 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 02:23:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 220 transitions. [2022-11-03 02:23:31,896 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 220 transitions. Word has length 63 [2022-11-03 02:23:31,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:31,896 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 220 transitions. [2022-11-03 02:23:31,897 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 02:23:31,897 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 220 transitions. [2022-11-03 02:23:31,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:31,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:31,899 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 02:23:31,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:32,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:32,100 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:32,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:32,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1458232482, now seen corresponding path program 1 times [2022-11-03 02:23:32,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:32,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920352546] [2022-11-03 02:23:32,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:32,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:32,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:32,104 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:32,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 02:23:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:32,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:32,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:32,863 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 02:23:32,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:32,864 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:32,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920352546] [2022-11-03 02:23:32,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920352546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:32,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:32,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:32,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878040909] [2022-11-03 02:23:32,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:32,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:32,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:32,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:32,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:32,874 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 02:23:33,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:33,303 INFO L93 Difference]: Finished difference Result 600 states and 881 transitions. [2022-11-03 02:23:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:33,304 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 02:23:33,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:33,307 INFO L225 Difference]: With dead ends: 600 [2022-11-03 02:23:33,307 INFO L226 Difference]: Without dead ends: 451 [2022-11-03 02:23:33,308 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 02:23:33,309 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 02:23:33,310 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 02:23:33,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-11-03 02:23:33,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 153. [2022-11-03 02:23:33,326 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 02:23:33,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 222 transitions. [2022-11-03 02:23:33,328 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 222 transitions. Word has length 63 [2022-11-03 02:23:33,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:33,328 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 222 transitions. [2022-11-03 02:23:33,329 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 02:23:33,329 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 222 transitions. [2022-11-03 02:23:33,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:33,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:33,331 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 02:23:33,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:33,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:33,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:33,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1852599268, now seen corresponding path program 1 times [2022-11-03 02:23:33,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:33,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827963007] [2022-11-03 02:23:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:33,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:33,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:33,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:33,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 02:23:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:33,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:33,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:34,199 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 02:23:34,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:34,199 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:34,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827963007] [2022-11-03 02:23:34,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827963007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:34,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:34,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:34,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797297955] [2022-11-03 02:23:34,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:34,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:34,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:34,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:34,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:34,202 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 02:23:34,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:34,532 INFO L93 Difference]: Finished difference Result 606 states and 887 transitions. [2022-11-03 02:23:34,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:34,533 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 02:23:34,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:34,536 INFO L225 Difference]: With dead ends: 606 [2022-11-03 02:23:34,536 INFO L226 Difference]: Without dead ends: 455 [2022-11-03 02:23:34,537 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 02:23:34,538 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 02:23:34,538 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 02:23:34,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-11-03 02:23:34,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 157. [2022-11-03 02:23:34,554 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 02:23:34,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 227 transitions. [2022-11-03 02:23:34,555 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 227 transitions. Word has length 63 [2022-11-03 02:23:34,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:34,555 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 227 transitions. [2022-11-03 02:23:34,556 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 02:23:34,556 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 227 transitions. [2022-11-03 02:23:34,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:34,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:34,558 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 02:23:34,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:34,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:34,772 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:34,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:34,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1577839654, now seen corresponding path program 1 times [2022-11-03 02:23:34,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:34,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769747225] [2022-11-03 02:23:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:34,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:34,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:34,777 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:34,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 02:23:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:35,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:35,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:35,331 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 02:23:35,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:35,332 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:35,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769747225] [2022-11-03 02:23:35,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769747225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:35,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:35,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:35,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823824672] [2022-11-03 02:23:35,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:35,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:35,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:35,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:35,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:35,335 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 02:23:35,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:35,653 INFO L93 Difference]: Finished difference Result 612 states and 893 transitions. [2022-11-03 02:23:35,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:35,654 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 02:23:35,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:35,656 INFO L225 Difference]: With dead ends: 612 [2022-11-03 02:23:35,657 INFO L226 Difference]: Without dead ends: 457 [2022-11-03 02:23:35,657 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 02:23:35,658 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1414 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 02:23:35,659 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 02:23:35,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-11-03 02:23:35,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 159. [2022-11-03 02:23:35,672 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 02:23:35,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 229 transitions. [2022-11-03 02:23:35,673 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 229 transitions. Word has length 63 [2022-11-03 02:23:35,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:35,674 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 229 transitions. [2022-11-03 02:23:35,674 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 02:23:35,674 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 229 transitions. [2022-11-03 02:23:35,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:35,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:35,675 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 02:23:35,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:35,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:35,890 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:35,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:35,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1555207400, now seen corresponding path program 1 times [2022-11-03 02:23:35,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:35,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248110470] [2022-11-03 02:23:35,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:35,892 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:35,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:35,893 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:35,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 02:23:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:36,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:36,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:36,458 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 02:23:36,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:36,459 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:36,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248110470] [2022-11-03 02:23:36,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248110470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:36,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:36,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:36,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571090603] [2022-11-03 02:23:36,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:36,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:36,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:36,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:36,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:36,468 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 02:23:36,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:36,794 INFO L93 Difference]: Finished difference Result 616 states and 896 transitions. [2022-11-03 02:23:36,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:36,795 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 02:23:36,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:36,797 INFO L225 Difference]: With dead ends: 616 [2022-11-03 02:23:36,798 INFO L226 Difference]: Without dead ends: 459 [2022-11-03 02:23:36,798 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 02:23:36,799 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 02:23:36,800 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 02:23:36,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-11-03 02:23:36,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 161. [2022-11-03 02:23:36,812 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 02:23:36,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 231 transitions. [2022-11-03 02:23:36,813 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 231 transitions. Word has length 63 [2022-11-03 02:23:36,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:36,814 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 231 transitions. [2022-11-03 02:23:36,814 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 02:23:36,814 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 231 transitions. [2022-11-03 02:23:36,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:36,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:36,815 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 02:23:36,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:37,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:37,031 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:37,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:37,032 INFO L85 PathProgramCache]: Analyzing trace with hash -2064680490, now seen corresponding path program 1 times [2022-11-03 02:23:37,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:37,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85603009] [2022-11-03 02:23:37,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:37,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:37,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:37,034 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:37,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 02:23:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:37,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:37,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:37,529 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 02:23:37,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:37,530 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:37,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85603009] [2022-11-03 02:23:37,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85603009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:37,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:37,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:37,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429975055] [2022-11-03 02:23:37,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:37,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:37,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:37,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:37,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:37,533 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 02:23:37,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:37,864 INFO L93 Difference]: Finished difference Result 620 states and 899 transitions. [2022-11-03 02:23:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:37,865 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 02:23:37,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:37,867 INFO L225 Difference]: With dead ends: 620 [2022-11-03 02:23:37,867 INFO L226 Difference]: Without dead ends: 461 [2022-11-03 02:23:37,868 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 02:23:37,869 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1394 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 02:23:37,869 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 02:23:37,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-03 02:23:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 163. [2022-11-03 02:23:37,881 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 02:23:37,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 233 transitions. [2022-11-03 02:23:37,882 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 233 transitions. Word has length 63 [2022-11-03 02:23:37,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:37,883 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 233 transitions. [2022-11-03 02:23:37,883 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 02:23:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 233 transitions. [2022-11-03 02:23:37,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:37,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:37,884 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 02:23:37,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-11-03 02:23:38,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:38,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:38,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:38,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2002640876, now seen corresponding path program 1 times [2022-11-03 02:23:38,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:38,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462196271] [2022-11-03 02:23:38,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:38,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:38,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:38,101 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:38,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 02:23:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:38,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:38,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:38,591 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 02:23:38,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:38,592 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:38,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462196271] [2022-11-03 02:23:38,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462196271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:38,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:38,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:38,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873445835] [2022-11-03 02:23:38,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:38,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:38,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:38,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:38,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:38,595 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 02:23:38,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:38,907 INFO L93 Difference]: Finished difference Result 624 states and 902 transitions. [2022-11-03 02:23:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:38,908 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 02:23:38,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:38,910 INFO L225 Difference]: With dead ends: 624 [2022-11-03 02:23:38,911 INFO L226 Difference]: Without dead ends: 463 [2022-11-03 02:23:38,911 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 02:23:38,913 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1387 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 02:23:38,913 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 02:23:38,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-11-03 02:23:38,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 165. [2022-11-03 02:23:38,928 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 02:23:38,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 235 transitions. [2022-11-03 02:23:38,929 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 235 transitions. Word has length 63 [2022-11-03 02:23:38,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:38,931 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 235 transitions. [2022-11-03 02:23:38,931 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 02:23:38,931 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 235 transitions. [2022-11-03 02:23:38,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:38,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:38,937 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 02:23:38,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-11-03 02:23:39,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:39,152 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:39,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:39,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2136654382, now seen corresponding path program 1 times [2022-11-03 02:23:39,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:39,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509788762] [2022-11-03 02:23:39,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:39,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:39,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:39,156 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:39,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 02:23:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:39,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:39,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:39,648 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 02:23:39,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:39,649 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:39,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509788762] [2022-11-03 02:23:39,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509788762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:39,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:39,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:39,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593087350] [2022-11-03 02:23:39,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:39,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:39,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:39,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:39,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:39,652 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 02:23:39,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:39,913 INFO L93 Difference]: Finished difference Result 628 states and 905 transitions. [2022-11-03 02:23:39,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:39,914 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 02:23:39,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:39,916 INFO L225 Difference]: With dead ends: 628 [2022-11-03 02:23:39,916 INFO L226 Difference]: Without dead ends: 465 [2022-11-03 02:23:39,917 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 02:23:39,917 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 02:23:39,918 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 02:23:39,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-11-03 02:23:39,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 167. [2022-11-03 02:23:39,930 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 02:23:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 237 transitions. [2022-11-03 02:23:39,932 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 237 transitions. Word has length 63 [2022-11-03 02:23:39,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:39,932 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 237 transitions. [2022-11-03 02:23:39,932 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 02:23:39,932 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 237 transitions. [2022-11-03 02:23:39,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:39,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:39,933 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 02:23:39,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:40,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:40,148 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:40,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:40,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1917799664, now seen corresponding path program 1 times [2022-11-03 02:23:40,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:40,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182348705] [2022-11-03 02:23:40,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:40,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:40,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:40,151 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:40,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 02:23:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:40,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:40,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:40,637 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 02:23:40,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:40,637 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:40,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182348705] [2022-11-03 02:23:40,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182348705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:40,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:40,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:40,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699579705] [2022-11-03 02:23:40,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:40,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:40,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:40,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:40,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:40,640 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 02:23:40,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:40,923 INFO L93 Difference]: Finished difference Result 632 states and 908 transitions. [2022-11-03 02:23:40,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:40,924 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 02:23:40,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:40,926 INFO L225 Difference]: With dead ends: 632 [2022-11-03 02:23:40,926 INFO L226 Difference]: Without dead ends: 467 [2022-11-03 02:23:40,927 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 02:23:40,928 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:40,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 940 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:23:40,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-11-03 02:23:40,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 169. [2022-11-03 02:23:40,948 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 02:23:40,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 239 transitions. [2022-11-03 02:23:40,949 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 239 transitions. Word has length 63 [2022-11-03 02:23:40,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:40,950 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 239 transitions. [2022-11-03 02:23:40,950 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 02:23:40,950 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 239 transitions. [2022-11-03 02:23:40,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:40,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:40,951 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 02:23:40,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:41,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:41,165 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:41,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:41,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1559519182, now seen corresponding path program 1 times [2022-11-03 02:23:41,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:41,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008300039] [2022-11-03 02:23:41,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:41,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:41,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:41,168 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:41,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 02:23:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:41,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:41,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:41,631 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 02:23:41,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:41,631 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:41,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008300039] [2022-11-03 02:23:41,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008300039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:41,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:41,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:41,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834543690] [2022-11-03 02:23:41,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:41,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:41,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:41,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:41,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:41,634 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 02:23:41,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:41,923 INFO L93 Difference]: Finished difference Result 636 states and 911 transitions. [2022-11-03 02:23:41,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:41,924 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 02:23:41,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:41,926 INFO L225 Difference]: With dead ends: 636 [2022-11-03 02:23:41,926 INFO L226 Difference]: Without dead ends: 469 [2022-11-03 02:23:41,927 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 02:23:41,928 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:41,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 950 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:23:41,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-11-03 02:23:41,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 171. [2022-11-03 02:23:41,943 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 02:23:41,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 241 transitions. [2022-11-03 02:23:41,944 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 241 transitions. Word has length 63 [2022-11-03 02:23:41,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:41,944 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 241 transitions. [2022-11-03 02:23:41,945 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 02:23:41,945 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 241 transitions. [2022-11-03 02:23:41,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:41,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:41,946 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 02:23:41,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:42,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:42,160 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:42,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:42,161 INFO L85 PathProgramCache]: Analyzing trace with hash -434625524, now seen corresponding path program 1 times [2022-11-03 02:23:42,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:42,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912198259] [2022-11-03 02:23:42,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:42,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:42,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:42,163 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:42,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 02:23:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:42,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:42,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:42,673 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 02:23:42,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:42,673 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:42,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912198259] [2022-11-03 02:23:42,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912198259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:42,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:42,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:42,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572854388] [2022-11-03 02:23:42,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:42,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:42,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:42,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:42,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:42,676 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 02:23:42,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:42,970 INFO L93 Difference]: Finished difference Result 642 states and 917 transitions. [2022-11-03 02:23:42,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:42,970 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 02:23:42,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:42,973 INFO L225 Difference]: With dead ends: 642 [2022-11-03 02:23:42,974 INFO L226 Difference]: Without dead ends: 473 [2022-11-03 02:23:42,974 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 02:23:42,975 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:42,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 944 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:23:42,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-11-03 02:23:42,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 175. [2022-11-03 02:23:42,993 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 02:23:42,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 246 transitions. [2022-11-03 02:23:42,994 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 246 transitions. Word has length 63 [2022-11-03 02:23:42,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:42,994 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 246 transitions. [2022-11-03 02:23:42,994 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 02:23:42,995 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 246 transitions. [2022-11-03 02:23:42,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:42,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:42,996 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 02:23:43,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:43,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:43,210 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:43,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:43,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1445742774, now seen corresponding path program 1 times [2022-11-03 02:23:43,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:43,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923940238] [2022-11-03 02:23:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:43,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:43,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:43,213 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:43,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 02:23:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:43,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:43,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:43,682 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 02:23:43,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:43,683 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:43,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923940238] [2022-11-03 02:23:43,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923940238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:43,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:43,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:43,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031960480] [2022-11-03 02:23:43,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:43,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:43,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:43,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:43,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:43,685 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 02:23:43,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:43,966 INFO L93 Difference]: Finished difference Result 648 states and 923 transitions. [2022-11-03 02:23:43,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:43,966 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 02:23:43,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:43,969 INFO L225 Difference]: With dead ends: 648 [2022-11-03 02:23:43,969 INFO L226 Difference]: Without dead ends: 475 [2022-11-03 02:23:43,970 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 02:23:43,970 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 02:23:43,971 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 02:23:43,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-11-03 02:23:43,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 177. [2022-11-03 02:23:43,990 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 02:23:43,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 248 transitions. [2022-11-03 02:23:43,991 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 248 transitions. Word has length 63 [2022-11-03 02:23:43,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:43,991 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 248 transitions. [2022-11-03 02:23:43,991 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 02:23:43,991 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 248 transitions. [2022-11-03 02:23:43,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:43,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:43,992 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 02:23:44,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:44,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:44,209 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:44,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:44,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1187577336, now seen corresponding path program 1 times [2022-11-03 02:23:44,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:44,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194566133] [2022-11-03 02:23:44,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:44,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:44,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:44,212 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:44,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 02:23:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:44,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:44,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:44,735 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 02:23:44,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:44,735 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:44,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194566133] [2022-11-03 02:23:44,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194566133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:44,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:44,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:44,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238533120] [2022-11-03 02:23:44,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:44,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:44,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:44,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:44,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:44,738 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 02:23:45,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:45,015 INFO L93 Difference]: Finished difference Result 652 states and 926 transitions. [2022-11-03 02:23:45,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:45,016 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 02:23:45,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:45,020 INFO L225 Difference]: With dead ends: 652 [2022-11-03 02:23:45,021 INFO L226 Difference]: Without dead ends: 477 [2022-11-03 02:23:45,021 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 02:23:45,022 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 02:23:45,023 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 02:23:45,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-11-03 02:23:45,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 179. [2022-11-03 02:23:45,038 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 02:23:45,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 250 transitions. [2022-11-03 02:23:45,039 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 250 transitions. Word has length 63 [2022-11-03 02:23:45,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:45,039 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 250 transitions. [2022-11-03 02:23:45,039 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 02:23:45,040 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 250 transitions. [2022-11-03 02:23:45,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:45,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:45,041 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 02:23:45,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:45,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:45,255 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:45,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:45,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1580604346, now seen corresponding path program 1 times [2022-11-03 02:23:45,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:45,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054322208] [2022-11-03 02:23:45,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:45,256 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:45,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:45,257 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:45,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 02:23:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:45,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:23:45,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:45,699 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 02:23:45,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:45,700 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:45,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054322208] [2022-11-03 02:23:45,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054322208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:45,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:45,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:45,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446531540] [2022-11-03 02:23:45,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:45,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:45,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:45,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:45,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:45,703 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 02:23:46,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:46,171 INFO L93 Difference]: Finished difference Result 656 states and 929 transitions. [2022-11-03 02:23:46,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:46,172 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 02:23:46,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:46,174 INFO L225 Difference]: With dead ends: 656 [2022-11-03 02:23:46,174 INFO L226 Difference]: Without dead ends: 479 [2022-11-03 02:23:46,175 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 02:23:46,175 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:46,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 855 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:23:46,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-11-03 02:23:46,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 181. [2022-11-03 02:23:46,190 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 02:23:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 252 transitions. [2022-11-03 02:23:46,191 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 252 transitions. Word has length 63 [2022-11-03 02:23:46,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:46,191 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 252 transitions. [2022-11-03 02:23:46,192 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 02:23:46,192 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 252 transitions. [2022-11-03 02:23:46,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:46,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:46,193 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 02:23:46,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:46,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:46,407 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:46,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:46,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1905016324, now seen corresponding path program 1 times [2022-11-03 02:23:46,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:46,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461754674] [2022-11-03 02:23:46,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:46,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:46,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:46,409 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:46,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 02:23:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:46,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 02:23:46,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:46,938 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 02:23:46,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:46,939 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:46,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461754674] [2022-11-03 02:23:46,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461754674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:46,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:46,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:46,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223952229] [2022-11-03 02:23:46,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:46,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:46,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:46,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:46,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:46,944 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 02:23:47,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:47,413 INFO L93 Difference]: Finished difference Result 660 states and 932 transitions. [2022-11-03 02:23:47,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:47,414 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 02:23:47,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:47,416 INFO L225 Difference]: With dead ends: 660 [2022-11-03 02:23:47,417 INFO L226 Difference]: Without dead ends: 481 [2022-11-03 02:23:47,417 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 02:23:47,418 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:47,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 863 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:23:47,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-11-03 02:23:47,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 183. [2022-11-03 02:23:47,434 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 02:23:47,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 254 transitions. [2022-11-03 02:23:47,435 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 254 transitions. Word has length 63 [2022-11-03 02:23:47,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:47,436 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 254 transitions. [2022-11-03 02:23:47,436 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 02:23:47,436 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 254 transitions. [2022-11-03 02:23:47,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:47,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:47,437 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 02:23:47,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:47,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:47,653 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:47,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:47,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1962274626, now seen corresponding path program 1 times [2022-11-03 02:23:47,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:47,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554048544] [2022-11-03 02:23:47,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:47,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:47,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:47,655 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:47,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-03 02:23:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:47,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 02:23:47,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:48,178 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 02:23:48,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:48,179 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:48,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554048544] [2022-11-03 02:23:48,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554048544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:48,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:48,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:23:48,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448645961] [2022-11-03 02:23:48,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:48,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:23:48,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:48,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:23:48,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:23:48,181 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 02:23:48,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:48,613 INFO L93 Difference]: Finished difference Result 509 states and 697 transitions. [2022-11-03 02:23:48,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:23:48,614 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 02:23:48,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:48,616 INFO L225 Difference]: With dead ends: 509 [2022-11-03 02:23:48,616 INFO L226 Difference]: Without dead ends: 507 [2022-11-03 02:23:48,617 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 02:23:48,617 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:48,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 954 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:23:48,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-11-03 02:23:48,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 255. [2022-11-03 02:23:48,634 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 02:23:48,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 347 transitions. [2022-11-03 02:23:48,636 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 347 transitions. Word has length 63 [2022-11-03 02:23:48,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:48,636 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 347 transitions. [2022-11-03 02:23:48,636 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 02:23:48,636 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 347 transitions. [2022-11-03 02:23:48,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:23:48,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:48,637 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 02:23:48,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:48,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:48,859 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:48,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:48,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2084546176, now seen corresponding path program 1 times [2022-11-03 02:23:48,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:48,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819106050] [2022-11-03 02:23:48,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:48,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:48,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:48,861 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:48,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-03 02:23:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:49,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:23:49,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:49,223 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 02:23:49,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:49,224 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:49,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819106050] [2022-11-03 02:23:49,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819106050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:49,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:49,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:23:49,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222080814] [2022-11-03 02:23:49,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:49,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:23:49,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:49,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:23:49,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:23:49,227 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 02:23:49,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:49,306 INFO L93 Difference]: Finished difference Result 690 states and 949 transitions. [2022-11-03 02:23:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:23:49,307 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 02:23:49,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:49,309 INFO L225 Difference]: With dead ends: 690 [2022-11-03 02:23:49,309 INFO L226 Difference]: Without dead ends: 437 [2022-11-03 02:23:49,310 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 02:23:49,311 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 02:23:49,312 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 02:23:49,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-11-03 02:23:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 263. [2022-11-03 02:23:49,338 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 02:23:49,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 358 transitions. [2022-11-03 02:23:49,341 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 358 transitions. Word has length 63 [2022-11-03 02:23:49,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:49,341 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 358 transitions. [2022-11-03 02:23:49,341 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 02:23:49,341 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 358 transitions. [2022-11-03 02:23:49,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:23:49,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:49,344 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 02:23:49,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:49,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:49,567 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:49,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:49,568 INFO L85 PathProgramCache]: Analyzing trace with hash 84546769, now seen corresponding path program 1 times [2022-11-03 02:23:49,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:49,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352712914] [2022-11-03 02:23:49,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:49,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:49,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:49,570 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:49,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 02:23:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:50,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:23:50,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:50,375 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 02:23:50,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:23:50,659 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 02:23:50,660 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:50,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352712914] [2022-11-03 02:23:50,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352712914] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:23:50,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [200044219] [2022-11-03 02:23:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:50,661 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:23:50,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:23:50,673 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:23:50,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-03 02:23:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:51,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:23:51,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:51,594 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 02:23:51,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:51,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [200044219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:51,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:23:51,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 02:23:51,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092363407] [2022-11-03 02:23:51,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:51,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:23:51,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:51,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:23:51,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:23:51,597 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 02:23:51,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:51,862 INFO L93 Difference]: Finished difference Result 1151 states and 1560 transitions. [2022-11-03 02:23:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:51,863 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 02:23:51,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:51,866 INFO L225 Difference]: With dead ends: 1151 [2022-11-03 02:23:51,866 INFO L226 Difference]: Without dead ends: 898 [2022-11-03 02:23:51,867 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 02:23:51,868 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 967 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 02:23:51,868 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 02:23:51,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-11-03 02:23:51,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 411. [2022-11-03 02:23:51,900 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 02:23:51,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 550 transitions. [2022-11-03 02:23:51,902 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 550 transitions. Word has length 218 [2022-11-03 02:23:51,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:51,902 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 550 transitions. [2022-11-03 02:23:51,902 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 02:23:51,903 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 550 transitions. [2022-11-03 02:23:51,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:23:51,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:51,906 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 02:23:51,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:52,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:52,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:52,317 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:52,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:52,317 INFO L85 PathProgramCache]: Analyzing trace with hash -301315633, now seen corresponding path program 1 times [2022-11-03 02:23:52,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:52,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542943269] [2022-11-03 02:23:52,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:52,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:52,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:52,319 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:52,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 02:23:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:52,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:23:52,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:53,500 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 02:23:53,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:53,501 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:53,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542943269] [2022-11-03 02:23:53,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542943269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:53,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:53,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:53,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540667907] [2022-11-03 02:23:53,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:53,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:53,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:53,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:53,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:53,504 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 02:23:53,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:53,892 INFO L93 Difference]: Finished difference Result 1749 states and 2338 transitions. [2022-11-03 02:23:53,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:53,893 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 02:23:53,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:53,898 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 02:23:53,898 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 02:23:53,899 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 02:23:53,900 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 619 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 02:23:53,900 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 02:23:53,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 02:23:53,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 571. [2022-11-03 02:23:53,933 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 02:23:53,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 758 transitions. [2022-11-03 02:23:53,935 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 758 transitions. Word has length 218 [2022-11-03 02:23:53,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:53,935 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 758 transitions. [2022-11-03 02:23:53,936 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 02:23:53,936 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 758 transitions. [2022-11-03 02:23:53,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:23:53,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:53,939 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 02:23:53,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:54,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:54,153 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:54,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:54,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1629810001, now seen corresponding path program 1 times [2022-11-03 02:23:54,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:54,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619248469] [2022-11-03 02:23:54,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:54,155 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:54,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:54,156 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:54,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-03 02:23:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:54,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:23:54,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:55,282 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 02:23:55,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:55,282 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:55,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619248469] [2022-11-03 02:23:55,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619248469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:55,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:55,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:55,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45878815] [2022-11-03 02:23:55,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:55,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:55,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:55,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:55,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:55,304 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 02:23:55,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:55,719 INFO L93 Difference]: Finished difference Result 1749 states and 2337 transitions. [2022-11-03 02:23:55,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:55,720 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 02:23:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:55,724 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 02:23:55,724 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 02:23:55,726 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 02:23:55,726 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 02:23:55,727 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 02:23:55,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 02:23:55,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 575. [2022-11-03 02:23:55,762 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 02:23:55,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 763 transitions. [2022-11-03 02:23:55,765 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 763 transitions. Word has length 218 [2022-11-03 02:23:55,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:55,765 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 763 transitions. [2022-11-03 02:23:55,765 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 02:23:55,766 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 763 transitions. [2022-11-03 02:23:55,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:23:55,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:55,769 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 02:23:55,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-11-03 02:23:55,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:55,985 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:55,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:55,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2056364499, now seen corresponding path program 1 times [2022-11-03 02:23:55,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:55,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282363075] [2022-11-03 02:23:55,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:55,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:55,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:55,988 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:55,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-03 02:23:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:56,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:23:56,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:57,022 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 02:23:57,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:57,023 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:57,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282363075] [2022-11-03 02:23:57,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282363075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:57,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:57,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:57,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392722655] [2022-11-03 02:23:57,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:57,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:57,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:57,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:57,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:57,025 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 02:23:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:57,398 INFO L93 Difference]: Finished difference Result 1749 states and 2336 transitions. [2022-11-03 02:23:57,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:57,399 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 02:23:57,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:57,404 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 02:23:57,404 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 02:23:57,405 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 02:23:57,406 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 534 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 02:23:57,406 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 02:23:57,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 02:23:57,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 579. [2022-11-03 02:23:57,441 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 02:23:57,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 768 transitions. [2022-11-03 02:23:57,443 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 768 transitions. Word has length 218 [2022-11-03 02:23:57,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:57,444 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 768 transitions. [2022-11-03 02:23:57,444 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 02:23:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 768 transitions. [2022-11-03 02:23:57,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:23:57,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:57,448 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 02:23:57,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:57,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:57,661 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:57,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:57,662 INFO L85 PathProgramCache]: Analyzing trace with hash 268494677, now seen corresponding path program 1 times [2022-11-03 02:23:57,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:57,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356424021] [2022-11-03 02:23:57,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:57,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:57,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:57,663 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:57,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-03 02:23:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:58,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:23:58,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:58,815 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 02:23:58,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:58,815 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:23:58,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356424021] [2022-11-03 02:23:58,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356424021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:58,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:58,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:23:58,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032619414] [2022-11-03 02:23:58,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:58,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:58,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:23:58,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:58,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:58,818 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 02:23:59,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:59,198 INFO L93 Difference]: Finished difference Result 1720 states and 2293 transitions. [2022-11-03 02:23:59,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:59,199 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 02:23:59,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:59,204 INFO L225 Difference]: With dead ends: 1720 [2022-11-03 02:23:59,204 INFO L226 Difference]: Without dead ends: 1319 [2022-11-03 02:23:59,206 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 02:23:59,206 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 476 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 02:23:59,207 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 02:23:59,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2022-11-03 02:23:59,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 587. [2022-11-03 02:23:59,249 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 02:23:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 779 transitions. [2022-11-03 02:23:59,252 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 779 transitions. Word has length 218 [2022-11-03 02:23:59,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:59,252 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 779 transitions. [2022-11-03 02:23:59,253 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 02:23:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 779 transitions. [2022-11-03 02:23:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:23:59,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:59,256 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 02:23:59,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:59,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:23:59,478 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:59,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:59,478 INFO L85 PathProgramCache]: Analyzing trace with hash -276377897, now seen corresponding path program 1 times [2022-11-03 02:23:59,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:23:59,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076578141] [2022-11-03 02:23:59,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:59,480 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:23:59,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:23:59,481 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:23:59,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 02:24:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:00,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:24:00,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:00,634 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 02:24:00,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:00,635 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:00,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076578141] [2022-11-03 02:24:00,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076578141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:00,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:00,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:00,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199782124] [2022-11-03 02:24:00,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:00,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:00,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:00,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:00,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:00,638 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 02:24:01,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:01,038 INFO L93 Difference]: Finished difference Result 1749 states and 2334 transitions. [2022-11-03 02:24:01,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:01,039 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 02:24:01,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:01,043 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 02:24:01,043 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 02:24:01,044 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 02:24:01,045 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:01,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1590 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 98 Unchecked, 0.3s Time] [2022-11-03 02:24:01,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 02:24:01,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 591. [2022-11-03 02:24:01,083 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 02:24:01,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 784 transitions. [2022-11-03 02:24:01,085 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 784 transitions. Word has length 218 [2022-11-03 02:24:01,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:01,086 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 784 transitions. [2022-11-03 02:24:01,086 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 02:24:01,086 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 784 transitions. [2022-11-03 02:24:01,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:01,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:01,089 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 02:24:01,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2022-11-03 02:24:01,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:01,306 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:01,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:01,306 INFO L85 PathProgramCache]: Analyzing trace with hash -710883495, now seen corresponding path program 1 times [2022-11-03 02:24:01,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:01,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858600183] [2022-11-03 02:24:01,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:01,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:01,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:01,308 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:01,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-03 02:24:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:01,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:24:01,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:02,463 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 02:24:02,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:02,464 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:02,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858600183] [2022-11-03 02:24:02,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858600183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:02,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:02,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:02,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759295053] [2022-11-03 02:24:02,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:02,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:02,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:02,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:02,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:02,467 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 02:24:02,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:02,829 INFO L93 Difference]: Finished difference Result 1749 states and 2333 transitions. [2022-11-03 02:24:02,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:02,830 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 02:24:02,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:02,834 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 02:24:02,834 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 02:24:02,836 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 02:24:02,836 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 553 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 02:24:02,837 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 02:24:02,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 02:24:02,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 595. [2022-11-03 02:24:02,875 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 02:24:02,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 789 transitions. [2022-11-03 02:24:02,877 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 789 transitions. Word has length 218 [2022-11-03 02:24:02,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:02,877 INFO L495 AbstractCegarLoop]: Abstraction has 595 states and 789 transitions. [2022-11-03 02:24:02,878 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 02:24:02,878 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 789 transitions. [2022-11-03 02:24:02,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:02,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:02,880 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 02:24:02,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:03,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:03,103 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:03,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:03,104 INFO L85 PathProgramCache]: Analyzing trace with hash 150950107, now seen corresponding path program 1 times [2022-11-03 02:24:03,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:03,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652921562] [2022-11-03 02:24:03,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:03,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:03,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:03,107 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:03,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-03 02:24:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:03,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:24:03,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:04,281 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 02:24:04,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:04,282 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:04,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652921562] [2022-11-03 02:24:04,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652921562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:04,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:04,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:04,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710628663] [2022-11-03 02:24:04,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:04,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:04,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:04,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:04,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:04,285 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 02:24:04,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:04,684 INFO L93 Difference]: Finished difference Result 1749 states and 2332 transitions. [2022-11-03 02:24:04,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:04,685 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 02:24:04,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:04,690 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 02:24:04,690 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 02:24:04,691 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 02:24:04,692 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:04,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1620 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 168 Invalid, 0 Unknown, 77 Unchecked, 0.3s Time] [2022-11-03 02:24:04,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 02:24:04,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 599. [2022-11-03 02:24:04,728 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 02:24:04,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 794 transitions. [2022-11-03 02:24:04,730 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 794 transitions. Word has length 218 [2022-11-03 02:24:04,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:04,730 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 794 transitions. [2022-11-03 02:24:04,731 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 02:24:04,731 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 794 transitions. [2022-11-03 02:24:04,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:04,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:04,733 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 02:24:04,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:04,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:04,955 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:04,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:04,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1131222179, now seen corresponding path program 1 times [2022-11-03 02:24:04,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:04,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525886646] [2022-11-03 02:24:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:04,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:04,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:04,959 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:04,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-03 02:24:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:05,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:24:05,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:05,780 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 02:24:05,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:06,079 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 02:24:06,080 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:06,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525886646] [2022-11-03 02:24:06,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525886646] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:24:06,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [670972363] [2022-11-03 02:24:06,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:06,081 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:06,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:24:06,082 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:24:06,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2022-11-03 02:24:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:06,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:24:06,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:06,996 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 02:24:06,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:06,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [670972363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:06,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:24:06,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 02:24:06,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366447150] [2022-11-03 02:24:06,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:06,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:06,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:06,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:06,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:24:07,000 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 02:24:07,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:07,260 INFO L93 Difference]: Finished difference Result 1549 states and 2080 transitions. [2022-11-03 02:24:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:07,260 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 02:24:07,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:07,265 INFO L225 Difference]: With dead ends: 1549 [2022-11-03 02:24:07,265 INFO L226 Difference]: Without dead ends: 1148 [2022-11-03 02:24:07,267 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 02:24:07,267 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 02:24:07,267 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 02:24:07,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-11-03 02:24:07,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 661. [2022-11-03 02:24:07,305 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 02:24:07,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 879 transitions. [2022-11-03 02:24:07,306 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 879 transitions. Word has length 218 [2022-11-03 02:24:07,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:07,307 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 879 transitions. [2022-11-03 02:24:07,307 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 02:24:07,307 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 879 transitions. [2022-11-03 02:24:07,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:07,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:07,310 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 02:24:07,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:07,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:07,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:07,733 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:07,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:07,733 INFO L85 PathProgramCache]: Analyzing trace with hash 590780507, now seen corresponding path program 1 times [2022-11-03 02:24:07,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:07,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134521093] [2022-11-03 02:24:07,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:07,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:07,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:07,736 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:07,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-03 02:24:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:08,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:24:08,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:08,920 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 02:24:08,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:08,921 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:08,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134521093] [2022-11-03 02:24:08,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134521093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:08,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:08,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:08,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275303207] [2022-11-03 02:24:08,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:08,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:08,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:08,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:08,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:08,924 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 02:24:09,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:09,336 INFO L93 Difference]: Finished difference Result 1877 states and 2512 transitions. [2022-11-03 02:24:09,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:09,337 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 02:24:09,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:09,342 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 02:24:09,342 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 02:24:09,342 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 02:24:09,343 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 02:24:09,343 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 02:24:09,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 02:24:09,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 667. [2022-11-03 02:24:09,380 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 02:24:09,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 886 transitions. [2022-11-03 02:24:09,382 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 886 transitions. Word has length 218 [2022-11-03 02:24:09,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:09,382 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 886 transitions. [2022-11-03 02:24:09,382 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 02:24:09,383 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 886 transitions. [2022-11-03 02:24:09,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:09,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:09,385 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 02:24:09,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:09,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:09,608 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:09,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:09,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1775254563, now seen corresponding path program 1 times [2022-11-03 02:24:09,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:09,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715998789] [2022-11-03 02:24:09,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:09,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:09,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:09,611 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:09,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-03 02:24:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:10,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:24:10,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:10,723 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 02:24:10,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:10,724 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:10,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715998789] [2022-11-03 02:24:10,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715998789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:10,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:10,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:10,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177463527] [2022-11-03 02:24:10,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:10,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:10,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:10,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:10,726 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 02:24:11,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:11,141 INFO L93 Difference]: Finished difference Result 1877 states and 2511 transitions. [2022-11-03 02:24:11,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:11,141 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 02:24:11,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:11,146 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 02:24:11,146 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 02:24:11,147 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 02:24:11,147 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:11,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1635 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 51 Unchecked, 0.3s Time] [2022-11-03 02:24:11,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 02:24:11,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 671. [2022-11-03 02:24:11,190 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 02:24:11,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 891 transitions. [2022-11-03 02:24:11,194 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 891 transitions. Word has length 218 [2022-11-03 02:24:11,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:11,194 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 891 transitions. [2022-11-03 02:24:11,194 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 02:24:11,194 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 891 transitions. [2022-11-03 02:24:11,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:11,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:11,197 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 02:24:11,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:11,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:11,411 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:11,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:11,411 INFO L85 PathProgramCache]: Analyzing trace with hash 872349791, now seen corresponding path program 1 times [2022-11-03 02:24:11,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:11,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583370527] [2022-11-03 02:24:11,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:11,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:11,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:11,414 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:11,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-03 02:24:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:12,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:24:12,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:12,698 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 02:24:12,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:12,698 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:12,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583370527] [2022-11-03 02:24:12,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583370527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:12,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:12,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:12,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601648736] [2022-11-03 02:24:12,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:12,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:12,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:12,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:12,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:12,700 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 02:24:13,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:13,041 INFO L93 Difference]: Finished difference Result 1792 states and 2385 transitions. [2022-11-03 02:24:13,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:13,042 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 02:24:13,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:13,046 INFO L225 Difference]: With dead ends: 1792 [2022-11-03 02:24:13,046 INFO L226 Difference]: Without dead ends: 1359 [2022-11-03 02:24:13,050 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 02:24:13,056 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 376 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 02:24:13,057 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 02:24:13,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2022-11-03 02:24:13,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 675. [2022-11-03 02:24:13,095 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 02:24:13,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 896 transitions. [2022-11-03 02:24:13,099 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 896 transitions. Word has length 218 [2022-11-03 02:24:13,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:13,099 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 896 transitions. [2022-11-03 02:24:13,100 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 02:24:13,100 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 896 transitions. [2022-11-03 02:24:13,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:13,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:13,103 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 02:24:13,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:13,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:13,324 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:13,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:13,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1269510687, now seen corresponding path program 1 times [2022-11-03 02:24:13,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:13,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985310515] [2022-11-03 02:24:13,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:13,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:13,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:13,328 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:13,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-03 02:24:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:13,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:24:13,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:14,578 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 02:24:14,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:14,579 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:14,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985310515] [2022-11-03 02:24:14,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985310515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:14,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:14,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:14,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7592060] [2022-11-03 02:24:14,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:14,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:14,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:14,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:14,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:14,581 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 02:24:14,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:14,970 INFO L93 Difference]: Finished difference Result 1877 states and 2509 transitions. [2022-11-03 02:24:14,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:14,971 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 02:24:14,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:14,975 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 02:24:14,975 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 02:24:14,976 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 02:24:14,976 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:14,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 1682 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 176 Invalid, 0 Unknown, 88 Unchecked, 0.3s Time] [2022-11-03 02:24:14,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 02:24:15,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 683. [2022-11-03 02:24:15,021 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 02:24:15,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 907 transitions. [2022-11-03 02:24:15,023 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 907 transitions. Word has length 218 [2022-11-03 02:24:15,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:15,024 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 907 transitions. [2022-11-03 02:24:15,024 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 02:24:15,024 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 907 transitions. [2022-11-03 02:24:15,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:15,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:15,026 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 02:24:15,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:15,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:15,249 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:15,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:15,250 INFO L85 PathProgramCache]: Analyzing trace with hash -238469789, now seen corresponding path program 1 times [2022-11-03 02:24:15,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:15,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209721281] [2022-11-03 02:24:15,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:15,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:15,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:15,252 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:15,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-03 02:24:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:15,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:24:15,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:16,537 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 02:24:16,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:16,537 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:16,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209721281] [2022-11-03 02:24:16,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209721281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:16,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:16,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:16,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490051046] [2022-11-03 02:24:16,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:16,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:16,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:16,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:16,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:16,540 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 02:24:16,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:16,893 INFO L93 Difference]: Finished difference Result 1780 states and 2365 transitions. [2022-11-03 02:24:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:16,894 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 02:24:16,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:16,897 INFO L225 Difference]: With dead ends: 1780 [2022-11-03 02:24:16,898 INFO L226 Difference]: Without dead ends: 1347 [2022-11-03 02:24:16,899 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 02:24:16,899 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 388 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 02:24:16,900 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 02:24:16,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2022-11-03 02:24:16,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 687. [2022-11-03 02:24:16,937 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 02:24:16,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 912 transitions. [2022-11-03 02:24:16,939 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 912 transitions. Word has length 218 [2022-11-03 02:24:16,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:16,940 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 912 transitions. [2022-11-03 02:24:16,940 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 02:24:16,940 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 912 transitions. [2022-11-03 02:24:16,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:16,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:16,943 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 02:24:16,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2022-11-03 02:24:17,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:17,156 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:17,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:17,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1112915429, now seen corresponding path program 1 times [2022-11-03 02:24:17,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:17,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923962460] [2022-11-03 02:24:17,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:17,157 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:17,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:17,158 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:17,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-03 02:24:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:17,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:24:17,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:18,188 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 02:24:18,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:18,189 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:18,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923962460] [2022-11-03 02:24:18,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923962460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:18,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:18,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:18,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202589480] [2022-11-03 02:24:18,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:18,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:18,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:18,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:18,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:18,191 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 02:24:18,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:18,604 INFO L93 Difference]: Finished difference Result 1877 states and 2507 transitions. [2022-11-03 02:24:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:18,605 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 02:24:18,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:18,608 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 02:24:18,608 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 02:24:18,609 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 02:24:18,610 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 402 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:18,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1723 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 181 Invalid, 0 Unknown, 105 Unchecked, 0.3s Time] [2022-11-03 02:24:18,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 02:24:18,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 691. [2022-11-03 02:24:18,662 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 02:24:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 917 transitions. [2022-11-03 02:24:18,664 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 917 transitions. Word has length 218 [2022-11-03 02:24:18,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:18,665 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 917 transitions. [2022-11-03 02:24:18,665 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 02:24:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 917 transitions. [2022-11-03 02:24:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:18,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:18,669 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 02:24:18,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:18,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:18,892 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:18,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:18,892 INFO L85 PathProgramCache]: Analyzing trace with hash -827666585, now seen corresponding path program 1 times [2022-11-03 02:24:18,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:18,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106338359] [2022-11-03 02:24:18,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:18,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:18,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:18,895 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:18,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-03 02:24:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:19,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:24:19,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:19,942 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 02:24:19,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:19,942 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:19,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106338359] [2022-11-03 02:24:19,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106338359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:19,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:19,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:24:19,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257301375] [2022-11-03 02:24:19,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:19,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:24:19,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:19,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:24:19,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:24:19,944 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 02:24:20,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:20,176 INFO L93 Difference]: Finished difference Result 1128 states and 1507 transitions. [2022-11-03 02:24:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:24:20,177 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 02:24:20,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:20,179 INFO L225 Difference]: With dead ends: 1128 [2022-11-03 02:24:20,179 INFO L226 Difference]: Without dead ends: 695 [2022-11-03 02:24:20,180 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 02:24:20,180 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 02:24:20,181 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 02:24:20,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-11-03 02:24:20,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2022-11-03 02:24:20,216 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 02:24:20,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 922 transitions. [2022-11-03 02:24:20,218 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 922 transitions. Word has length 218 [2022-11-03 02:24:20,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:20,218 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 922 transitions. [2022-11-03 02:24:20,219 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 02:24:20,219 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 922 transitions. [2022-11-03 02:24:20,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:20,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:20,221 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 02:24:20,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:20,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:20,443 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:20,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:20,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1413942807, now seen corresponding path program 1 times [2022-11-03 02:24:20,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:20,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864210303] [2022-11-03 02:24:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:20,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:20,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:20,446 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:20,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-03 02:24:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:20,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:24:20,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:21,255 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 02:24:21,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:21,617 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 02:24:21,618 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:21,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864210303] [2022-11-03 02:24:21,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864210303] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:24:21,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1285605335] [2022-11-03 02:24:21,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:21,619 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:21,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:24:21,620 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:24:21,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2022-11-03 02:24:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:22,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:24:22,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:22,569 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 02:24:22,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:22,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1285605335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:22,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:24:22,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 02:24:22,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130186560] [2022-11-03 02:24:22,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:22,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:22,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:22,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:22,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:24:22,572 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 02:24:22,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:22,826 INFO L93 Difference]: Finished difference Result 1677 states and 2254 transitions. [2022-11-03 02:24:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:22,827 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 02:24:22,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:22,829 INFO L225 Difference]: With dead ends: 1677 [2022-11-03 02:24:22,829 INFO L226 Difference]: Without dead ends: 1244 [2022-11-03 02:24:22,830 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 02:24:22,831 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 891 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 02:24:22,831 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 02:24:22,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-11-03 02:24:22,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 757. [2022-11-03 02:24:22,868 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 02:24:22,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1007 transitions. [2022-11-03 02:24:22,870 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1007 transitions. Word has length 218 [2022-11-03 02:24:22,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:22,879 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 1007 transitions. [2022-11-03 02:24:22,879 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 02:24:22,880 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1007 transitions. [2022-11-03 02:24:22,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:22,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:22,882 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 02:24:22,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:23,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2022-11-03 02:24:23,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:23,288 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:23,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:23,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1004541671, now seen corresponding path program 1 times [2022-11-03 02:24:23,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:23,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167455081] [2022-11-03 02:24:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:23,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:23,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:23,291 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:23,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-03 02:24:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:23,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:24:23,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:24,129 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 02:24:24,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:24,492 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 02:24:24,492 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:24,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167455081] [2022-11-03 02:24:24,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167455081] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:24:24,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2057856292] [2022-11-03 02:24:24,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:24,493 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:24,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:24:24,494 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:24:24,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2022-11-03 02:24:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:25,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:24:25,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:25,448 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 02:24:25,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:25,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2057856292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:25,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:24:25,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 02:24:25,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831224855] [2022-11-03 02:24:25,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:25,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:25,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:25,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:25,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:24:25,451 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 02:24:25,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:25,718 INFO L93 Difference]: Finished difference Result 1723 states and 2320 transitions. [2022-11-03 02:24:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:25,718 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 02:24:25,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:25,721 INFO L225 Difference]: With dead ends: 1723 [2022-11-03 02:24:25,721 INFO L226 Difference]: Without dead ends: 1258 [2022-11-03 02:24:25,722 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 02:24:25,722 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 02:24:25,723 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 02:24:25,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-03 02:24:25,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 771. [2022-11-03 02:24:25,762 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 02:24:25,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1027 transitions. [2022-11-03 02:24:25,764 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1027 transitions. Word has length 218 [2022-11-03 02:24:25,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:25,764 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1027 transitions. [2022-11-03 02:24:25,765 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 02:24:25,765 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1027 transitions. [2022-11-03 02:24:25,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:25,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:25,767 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 02:24:25,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:25,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2022-11-03 02:24:26,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:26,181 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:26,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:26,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1971892325, now seen corresponding path program 1 times [2022-11-03 02:24:26,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:26,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113529625] [2022-11-03 02:24:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:26,183 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:26,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:26,184 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:26,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-03 02:24:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:26,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:24:26,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:27,614 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 02:24:27,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:29,880 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:29,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113529625] [2022-11-03 02:24:29,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113529625] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:24:29,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2126077657] [2022-11-03 02:24:29,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:29,881 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:29,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:24:29,885 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:24:29,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2022-11-03 02:24:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:30,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:24:30,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:31,033 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 02:24:31,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:31,347 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 02:24:31,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2126077657] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:24:31,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008077775] [2022-11-03 02:24:31,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:31,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:24:31,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:24:31,353 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:24:31,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-11-03 02:24:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:31,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:24:31,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:32,096 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 02:24:32,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:32,336 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 02:24:32,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008077775] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:24:32,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2022-11-03 02:24:32,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6, 6, 6] total 14 [2022-11-03 02:24:32,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175640215] [2022-11-03 02:24:32,337 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2022-11-03 02:24:32,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 02:24:32,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:32,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 02:24:32,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:24:32,343 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 02:24:34,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:34,412 INFO L93 Difference]: Finished difference Result 1547 states and 2114 transitions. [2022-11-03 02:24:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 02:24:34,413 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 02:24:34,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:34,417 INFO L225 Difference]: With dead ends: 1547 [2022-11-03 02:24:34,417 INFO L226 Difference]: Without dead ends: 1068 [2022-11-03 02:24:34,418 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 02:24:34,419 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 913 mSDsluCounter, 5085 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:34,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 5812 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1357 Invalid, 0 Unknown, 254 Unchecked, 1.5s Time] [2022-11-03 02:24:34,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-03 02:24:34,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 629. [2022-11-03 02:24:34,455 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 02:24:34,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 839 transitions. [2022-11-03 02:24:34,456 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 839 transitions. Word has length 218 [2022-11-03 02:24:34,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:34,457 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 839 transitions. [2022-11-03 02:24:34,457 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 02:24:34,457 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 839 transitions. [2022-11-03 02:24:34,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:34,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:34,460 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 02:24:34,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2022-11-03 02:24:34,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2022-11-03 02:24:34,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2022-11-03 02:24:35,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:35,066 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:35,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:35,066 INFO L85 PathProgramCache]: Analyzing trace with hash 600144609, now seen corresponding path program 1 times [2022-11-03 02:24:35,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:35,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252845165] [2022-11-03 02:24:35,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:35,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:35,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:35,068 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:35,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-03 02:24:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:35,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:24:35,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:36,149 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 02:24:36,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:36,213 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:36,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252845165] [2022-11-03 02:24:36,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252845165] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:24:36,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [267192369] [2022-11-03 02:24:36,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:36,213 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:36,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:24:36,214 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:24:36,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2022-11-03 02:24:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:37,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 02:24:37,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:38,061 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 02:24:38,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:38,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [267192369] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:24:38,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870892670] [2022-11-03 02:24:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:38,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:24:38,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:24:38,509 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:24:38,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2022-11-03 02:24:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:38,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 02:24:38,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:39,965 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 02:24:39,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:40,548 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 02:24:40,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870892670] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:24:40,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-03 02:24:40,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 8, 8] total 28 [2022-11-03 02:24:40,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238582605] [2022-11-03 02:24:40,549 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-03 02:24:40,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-03 02:24:40,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:40,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-03 02:24:40,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1099, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 02:24:40,552 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 02:24:48,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:48,263 INFO L93 Difference]: Finished difference Result 3249 states and 4498 transitions. [2022-11-03 02:24:48,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-11-03 02:24:48,264 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 02:24:48,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:48,268 INFO L225 Difference]: With dead ends: 3249 [2022-11-03 02:24:48,269 INFO L226 Difference]: Without dead ends: 2996 [2022-11-03 02:24:48,273 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 02:24:48,274 INFO L413 NwaCegarLoop]: 1168 mSDtfsCounter, 4075 mSDsluCounter, 15474 mSDsCounter, 0 mSdLazyCounter, 3584 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:48,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4075 Valid, 16642 Invalid, 4952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 3584 Invalid, 0 Unknown, 1047 Unchecked, 3.9s Time] [2022-11-03 02:24:48,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2022-11-03 02:24:48,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 852. [2022-11-03 02:24:48,379 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 02:24:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1153 transitions. [2022-11-03 02:24:48,381 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1153 transitions. Word has length 218 [2022-11-03 02:24:48,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:48,381 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1153 transitions. [2022-11-03 02:24:48,381 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 02:24:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1153 transitions. [2022-11-03 02:24:48,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:48,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:48,384 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 02:24:48,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:48,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:48,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2022-11-03 02:24:49,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:49,001 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:49,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:49,002 INFO L85 PathProgramCache]: Analyzing trace with hash 685485245, now seen corresponding path program 1 times [2022-11-03 02:24:49,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:49,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974524816] [2022-11-03 02:24:49,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:49,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:49,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:49,004 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:49,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-03 02:24:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:49,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:24:49,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:49,892 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 02:24:49,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:50,241 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 02:24:50,242 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:50,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974524816] [2022-11-03 02:24:50,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974524816] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:24:50,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1546368780] [2022-11-03 02:24:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:50,245 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:50,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:24:50,246 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:24:50,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2022-11-03 02:24:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:51,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:24:51,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:51,181 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 02:24:51,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:51,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1546368780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:51,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:24:51,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 02:24:51,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167774148] [2022-11-03 02:24:51,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:51,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:51,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:51,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:51,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:24:51,183 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 02:24:51,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:51,452 INFO L93 Difference]: Finished difference Result 1490 states and 2045 transitions. [2022-11-03 02:24:51,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:51,452 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 02:24:51,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:51,453 INFO L225 Difference]: With dead ends: 1490 [2022-11-03 02:24:51,454 INFO L226 Difference]: Without dead ends: 1076 [2022-11-03 02:24:51,454 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 02:24:51,455 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 727 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 02:24:51,455 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 02:24:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-11-03 02:24:51,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 844. [2022-11-03 02:24:51,530 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 02:24:51,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1141 transitions. [2022-11-03 02:24:51,532 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1141 transitions. Word has length 218 [2022-11-03 02:24:51,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:51,532 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1141 transitions. [2022-11-03 02:24:51,532 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 02:24:51,532 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1141 transitions. [2022-11-03 02:24:51,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:51,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:51,535 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 02:24:51,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:51,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2022-11-03 02:24:51,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:51,941 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:51,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:51,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1867745683, now seen corresponding path program 1 times [2022-11-03 02:24:51,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:51,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610442797] [2022-11-03 02:24:51,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:51,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:51,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:51,944 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:51,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-03 02:24:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:52,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:24:52,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:52,573 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 02:24:52,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:52,731 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 02:24:52,731 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:52,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610442797] [2022-11-03 02:24:52,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610442797] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:24:52,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [254018263] [2022-11-03 02:24:52,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:52,732 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:52,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:24:52,733 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:24:52,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2022-11-03 02:24:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:53,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:24:53,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:53,639 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 02:24:53,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:53,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [254018263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:53,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:24:53,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:24:53,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814876340] [2022-11-03 02:24:53,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:53,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:53,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:53,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:53,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:24:53,641 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 02:24:53,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:53,926 INFO L93 Difference]: Finished difference Result 1596 states and 2170 transitions. [2022-11-03 02:24:53,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:53,926 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 02:24:53,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:53,928 INFO L225 Difference]: With dead ends: 1596 [2022-11-03 02:24:53,928 INFO L226 Difference]: Without dead ends: 1062 [2022-11-03 02:24:53,929 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 02:24:53,929 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 565 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 02:24:53,930 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 02:24:53,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2022-11-03 02:24:54,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 844. [2022-11-03 02:24:54,025 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 02:24:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1139 transitions. [2022-11-03 02:24:54,027 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1139 transitions. Word has length 218 [2022-11-03 02:24:54,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:54,027 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1139 transitions. [2022-11-03 02:24:54,027 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 02:24:54,027 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1139 transitions. [2022-11-03 02:24:54,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:54,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:54,030 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 02:24:54,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:54,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:54,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:54,437 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:54,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:54,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1022029935, now seen corresponding path program 1 times [2022-11-03 02:24:54,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:54,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938365761] [2022-11-03 02:24:54,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:54,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:54,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:54,440 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:54,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-03 02:24:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:54,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:24:54,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:55,097 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 02:24:55,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:55,283 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 02:24:55,283 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:55,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938365761] [2022-11-03 02:24:55,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938365761] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:24:55,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1969307676] [2022-11-03 02:24:55,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:55,284 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:55,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:24:55,285 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:24:55,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2022-11-03 02:24:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:56,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:24:56,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:56,188 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 02:24:56,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:56,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1969307676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:56,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:24:56,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:24:56,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974107663] [2022-11-03 02:24:56,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:56,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:56,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:56,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:56,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:24:56,191 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 02:24:56,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:56,500 INFO L93 Difference]: Finished difference Result 1579 states and 2145 transitions. [2022-11-03 02:24:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:56,500 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 02:24:56,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:56,502 INFO L225 Difference]: With dead ends: 1579 [2022-11-03 02:24:56,502 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:24:56,503 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 02:24:56,503 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 02:24:56,503 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 02:24:56,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:24:56,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:24:56,598 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 02:24:56,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1135 transitions. [2022-11-03 02:24:56,599 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1135 transitions. Word has length 218 [2022-11-03 02:24:56,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:56,599 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1135 transitions. [2022-11-03 02:24:56,599 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 02:24:56,599 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1135 transitions. [2022-11-03 02:24:56,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:56,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:56,601 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 02:24:56,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:56,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (52)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:57,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:57,017 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:57,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:57,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1375957903, now seen corresponding path program 1 times [2022-11-03 02:24:57,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:57,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633402714] [2022-11-03 02:24:57,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:57,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:57,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:57,019 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:57,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-03 02:24:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:57,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:24:57,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:57,662 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 02:24:57,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:24:57,825 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 02:24:57,826 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:24:57,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633402714] [2022-11-03 02:24:57,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633402714] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:24:57,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1422686185] [2022-11-03 02:24:57,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:57,826 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:24:57,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:24:57,827 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:24:57,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2022-11-03 02:24:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:58,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:24:58,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:58,711 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 02:24:58,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:58,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1422686185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:58,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:24:58,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:24:58,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660279531] [2022-11-03 02:24:58,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:58,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:58,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:24:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:24:58,714 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 02:24:59,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:59,081 INFO L93 Difference]: Finished difference Result 1571 states and 2128 transitions. [2022-11-03 02:24:59,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:24:59,082 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 02:24:59,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:59,084 INFO L225 Difference]: With dead ends: 1571 [2022-11-03 02:24:59,084 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:24:59,085 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 02:24:59,085 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 02:24:59,085 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 02:24:59,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:24:59,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:24:59,179 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 02:24:59,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1131 transitions. [2022-11-03 02:24:59,181 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1131 transitions. Word has length 218 [2022-11-03 02:24:59,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:59,181 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1131 transitions. [2022-11-03 02:24:59,182 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 02:24:59,182 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1131 transitions. [2022-11-03 02:24:59,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:24:59,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:59,184 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 02:24:59,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2022-11-03 02:24:59,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Ended with exit code 0 [2022-11-03 02:24:59,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:24:59,591 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:59,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:59,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1531938445, now seen corresponding path program 1 times [2022-11-03 02:24:59,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:24:59,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293258475] [2022-11-03 02:24:59,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:59,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:24:59,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:24:59,593 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:24:59,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-03 02:25:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:00,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:00,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:00,243 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 02:25:00,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:00,402 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 02:25:00,403 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:00,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293258475] [2022-11-03 02:25:00,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293258475] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:00,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1536648651] [2022-11-03 02:25:00,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:00,403 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:00,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:00,404 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:00,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2022-11-03 02:25:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:01,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:01,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:01,330 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 02:25:01,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:01,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1536648651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:01,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:01,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:01,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13105622] [2022-11-03 02:25:01,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:01,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:01,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:01,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:01,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:01,332 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 02:25:01,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:01,649 INFO L93 Difference]: Finished difference Result 1563 states and 2111 transitions. [2022-11-03 02:25:01,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:01,649 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 02:25:01,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:01,651 INFO L225 Difference]: With dead ends: 1563 [2022-11-03 02:25:01,651 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:01,652 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 02:25:01,653 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 02:25:01,653 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 02:25:01,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:01,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:01,747 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 02:25:01,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1127 transitions. [2022-11-03 02:25:01,749 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1127 transitions. Word has length 218 [2022-11-03 02:25:01,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:01,750 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1127 transitions. [2022-11-03 02:25:01,750 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 02:25:01,750 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1127 transitions. [2022-11-03 02:25:01,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:01,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:01,752 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 02:25:01,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Ended with exit code 0 [2022-11-03 02:25:01,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2022-11-03 02:25:02,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:02,169 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:02,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:02,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1462290571, now seen corresponding path program 1 times [2022-11-03 02:25:02,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:02,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727028729] [2022-11-03 02:25:02,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:02,171 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:02,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:02,172 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:02,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-03 02:25:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:02,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:02,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:02,831 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 02:25:02,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:02,988 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 02:25:02,988 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:02,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727028729] [2022-11-03 02:25:02,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727028729] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:02,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [155827490] [2022-11-03 02:25:02,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:02,989 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:02,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:02,990 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:02,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2022-11-03 02:25:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:03,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:03,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:03,891 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 02:25:03,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:03,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [155827490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:03,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:03,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:03,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044669421] [2022-11-03 02:25:03,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:03,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:03,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:03,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:03,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:03,893 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 02:25:04,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:04,225 INFO L93 Difference]: Finished difference Result 1555 states and 2091 transitions. [2022-11-03 02:25:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:04,226 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 02:25:04,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:04,227 INFO L225 Difference]: With dead ends: 1555 [2022-11-03 02:25:04,227 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:04,228 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 02:25:04,228 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 02:25:04,229 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 02:25:04,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:04,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:04,295 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 02:25:04,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1123 transitions. [2022-11-03 02:25:04,296 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1123 transitions. Word has length 218 [2022-11-03 02:25:04,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:04,297 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1123 transitions. [2022-11-03 02:25:04,297 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 02:25:04,297 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1123 transitions. [2022-11-03 02:25:04,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:04,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:04,299 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 02:25:04,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2022-11-03 02:25:04,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Ended with exit code 0 [2022-11-03 02:25:04,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:04,700 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:04,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:04,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1098824073, now seen corresponding path program 1 times [2022-11-03 02:25:04,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:04,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177070331] [2022-11-03 02:25:04,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:04,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:04,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:04,702 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:04,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-03 02:25:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:05,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:05,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:05,346 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 02:25:05,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:05,512 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 02:25:05,512 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:05,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177070331] [2022-11-03 02:25:05,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177070331] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:05,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1763701010] [2022-11-03 02:25:05,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:05,512 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:05,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:05,513 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:05,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2022-11-03 02:25:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:06,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:06,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:06,440 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 02:25:06,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:06,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1763701010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:06,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:06,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:06,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517342404] [2022-11-03 02:25:06,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:06,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:06,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:06,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:06,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:06,442 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 02:25:06,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:06,765 INFO L93 Difference]: Finished difference Result 1547 states and 2074 transitions. [2022-11-03 02:25:06,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:06,765 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 02:25:06,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:06,767 INFO L225 Difference]: With dead ends: 1547 [2022-11-03 02:25:06,768 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:06,769 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 02:25:06,769 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 02:25:06,770 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 02:25:06,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:06,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:06,863 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 02:25:06,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1119 transitions. [2022-11-03 02:25:06,865 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1119 transitions. Word has length 218 [2022-11-03 02:25:06,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:06,865 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1119 transitions. [2022-11-03 02:25:06,865 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 02:25:06,865 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1119 transitions. [2022-11-03 02:25:06,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:06,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:06,870 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 02:25:06,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:07,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:07,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:07,285 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:07,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:07,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2046876039, now seen corresponding path program 1 times [2022-11-03 02:25:07,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:07,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881840444] [2022-11-03 02:25:07,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:07,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:07,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:07,287 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:07,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-03 02:25:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:07,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:07,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:07,964 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 02:25:07,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:08,154 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 02:25:08,154 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:08,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881840444] [2022-11-03 02:25:08,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [881840444] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:08,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1225169923] [2022-11-03 02:25:08,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:08,155 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:08,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:08,157 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:08,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2022-11-03 02:25:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:08,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:08,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:09,087 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 02:25:09,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:09,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1225169923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:09,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:09,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:09,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5477936] [2022-11-03 02:25:09,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:09,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:09,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:09,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:09,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:09,089 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 02:25:09,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:09,414 INFO L93 Difference]: Finished difference Result 1539 states and 2057 transitions. [2022-11-03 02:25:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:09,415 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 02:25:09,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:09,417 INFO L225 Difference]: With dead ends: 1539 [2022-11-03 02:25:09,417 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:09,418 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 02:25:09,419 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 02:25:09,419 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 02:25:09,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:09,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:09,527 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 02:25:09,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1115 transitions. [2022-11-03 02:25:09,529 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1115 transitions. Word has length 218 [2022-11-03 02:25:09,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:09,530 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1115 transitions. [2022-11-03 02:25:09,530 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 02:25:09,530 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1115 transitions. [2022-11-03 02:25:09,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:09,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:09,532 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 02:25:09,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:09,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2022-11-03 02:25:09,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:09,950 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:09,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:09,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1541494651, now seen corresponding path program 1 times [2022-11-03 02:25:09,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:09,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246360780] [2022-11-03 02:25:09,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:09,952 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:09,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:09,953 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:09,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-03 02:25:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:10,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:10,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:10,605 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 02:25:10,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:10,765 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 02:25:10,765 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:10,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246360780] [2022-11-03 02:25:10,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246360780] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:10,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1493658698] [2022-11-03 02:25:10,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:10,765 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:10,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:10,766 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:10,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2022-11-03 02:25:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:11,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:11,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:11,740 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 02:25:11,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:11,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1493658698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:11,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:11,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:11,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101863648] [2022-11-03 02:25:11,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:11,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:11,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:11,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:11,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:11,742 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 02:25:12,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:12,036 INFO L93 Difference]: Finished difference Result 1531 states and 2040 transitions. [2022-11-03 02:25:12,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:12,036 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 02:25:12,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:12,038 INFO L225 Difference]: With dead ends: 1531 [2022-11-03 02:25:12,038 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:12,039 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 02:25:12,039 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 02:25:12,045 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 02:25:12,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:12,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:12,104 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 02:25:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1111 transitions. [2022-11-03 02:25:12,105 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1111 transitions. Word has length 218 [2022-11-03 02:25:12,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:12,106 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1111 transitions. [2022-11-03 02:25:12,106 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 02:25:12,106 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1111 transitions. [2022-11-03 02:25:12,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:12,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:12,107 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 02:25:12,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Ended with exit code 0 [2022-11-03 02:25:12,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2022-11-03 02:25:12,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:12,510 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:12,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:12,510 INFO L85 PathProgramCache]: Analyzing trace with hash 2029541757, now seen corresponding path program 1 times [2022-11-03 02:25:12,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:12,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495859423] [2022-11-03 02:25:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:12,512 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:12,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:12,513 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:12,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-03 02:25:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:13,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:13,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:13,195 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 02:25:13,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:13,352 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 02:25:13,353 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:13,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495859423] [2022-11-03 02:25:13,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495859423] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:13,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1353511577] [2022-11-03 02:25:13,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:13,353 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:13,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:13,354 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:13,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2022-11-03 02:25:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:14,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:14,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:14,301 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 02:25:14,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:14,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1353511577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:14,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:14,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:14,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479323048] [2022-11-03 02:25:14,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:14,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:14,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:14,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:14,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:14,304 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 02:25:14,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:14,599 INFO L93 Difference]: Finished difference Result 1515 states and 2016 transitions. [2022-11-03 02:25:14,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:14,599 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 02:25:14,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:14,601 INFO L225 Difference]: With dead ends: 1515 [2022-11-03 02:25:14,601 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:14,602 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 02:25:14,603 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 02:25:14,603 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 02:25:14,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:14,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:14,715 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 02:25:14,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1107 transitions. [2022-11-03 02:25:14,717 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1107 transitions. Word has length 218 [2022-11-03 02:25:14,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:14,718 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1107 transitions. [2022-11-03 02:25:14,718 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 02:25:14,718 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1107 transitions. [2022-11-03 02:25:14,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:14,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:14,722 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 02:25:14,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (66)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:14,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:15,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:15,136 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:15,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:15,136 INFO L85 PathProgramCache]: Analyzing trace with hash -538280577, now seen corresponding path program 1 times [2022-11-03 02:25:15,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:15,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360942687] [2022-11-03 02:25:15,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:15,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:15,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:15,143 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:15,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-03 02:25:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:15,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:15,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:15,964 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 02:25:15,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:16,159 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 02:25:16,159 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:16,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360942687] [2022-11-03 02:25:16,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360942687] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:16,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1804636602] [2022-11-03 02:25:16,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:16,160 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:16,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:16,161 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:16,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2022-11-03 02:25:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:16,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:16,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:17,136 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 02:25:17,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:17,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1804636602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:17,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:17,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:17,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684975998] [2022-11-03 02:25:17,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:17,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:17,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:17,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:17,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:17,139 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 02:25:17,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:17,504 INFO L93 Difference]: Finished difference Result 1507 states and 1999 transitions. [2022-11-03 02:25:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:17,504 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 02:25:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:17,506 INFO L225 Difference]: With dead ends: 1507 [2022-11-03 02:25:17,506 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:17,507 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 02:25:17,508 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 02:25:17,508 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 02:25:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:17,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:17,606 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 02:25:17,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1103 transitions. [2022-11-03 02:25:17,608 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1103 transitions. Word has length 218 [2022-11-03 02:25:17,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:17,609 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1103 transitions. [2022-11-03 02:25:17,609 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 02:25:17,609 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1103 transitions. [2022-11-03 02:25:17,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:17,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:17,611 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 02:25:17,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:17,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:18,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:18,027 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:18,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:18,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1576865151, now seen corresponding path program 1 times [2022-11-03 02:25:18,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:18,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337693454] [2022-11-03 02:25:18,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:18,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:18,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:18,031 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:18,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-11-03 02:25:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:18,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:18,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:18,736 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 02:25:18,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:18,895 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 02:25:18,895 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:18,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337693454] [2022-11-03 02:25:18,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337693454] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:18,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [340416715] [2022-11-03 02:25:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:18,896 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:18,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:18,897 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:18,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2022-11-03 02:25:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:19,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:19,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:19,915 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 02:25:19,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:19,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [340416715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:19,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:19,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:19,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285751463] [2022-11-03 02:25:19,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:19,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:19,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:19,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:19,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:19,918 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 02:25:20,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:20,219 INFO L93 Difference]: Finished difference Result 1499 states and 1982 transitions. [2022-11-03 02:25:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:20,220 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 02:25:20,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:20,221 INFO L225 Difference]: With dead ends: 1499 [2022-11-03 02:25:20,222 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:20,222 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 02:25:20,223 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 02:25:20,223 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 02:25:20,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:20,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:20,288 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 02:25:20,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1099 transitions. [2022-11-03 02:25:20,289 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1099 transitions. Word has length 218 [2022-11-03 02:25:20,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:20,289 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1099 transitions. [2022-11-03 02:25:20,290 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 02:25:20,290 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1099 transitions. [2022-11-03 02:25:20,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:20,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:20,291 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 02:25:20,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Ended with exit code 0 [2022-11-03 02:25:20,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2022-11-03 02:25:20,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:20,694 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:20,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:20,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1458423677, now seen corresponding path program 1 times [2022-11-03 02:25:20,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:20,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360717043] [2022-11-03 02:25:20,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:20,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:20,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:20,697 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:20,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-03 02:25:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:21,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:21,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:21,357 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 02:25:21,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:21,520 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 02:25:21,520 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:21,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360717043] [2022-11-03 02:25:21,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360717043] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:21,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1772806050] [2022-11-03 02:25:21,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:21,520 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:21,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:21,522 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:21,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2022-11-03 02:25:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:22,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:22,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:22,529 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 02:25:22,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:22,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1772806050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:22,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:22,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:22,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455114579] [2022-11-03 02:25:22,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:22,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:22,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:22,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:22,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:22,531 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 02:25:22,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:22,864 INFO L93 Difference]: Finished difference Result 1491 states and 1962 transitions. [2022-11-03 02:25:22,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:22,864 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 02:25:22,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:22,865 INFO L225 Difference]: With dead ends: 1491 [2022-11-03 02:25:22,866 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:22,866 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 02:25:22,866 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 02:25:22,867 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 02:25:22,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:22,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:22,931 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 02:25:22,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1095 transitions. [2022-11-03 02:25:22,933 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1095 transitions. Word has length 218 [2022-11-03 02:25:22,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:22,933 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1095 transitions. [2022-11-03 02:25:22,934 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 02:25:22,934 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1095 transitions. [2022-11-03 02:25:22,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:22,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:22,936 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 02:25:22,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:23,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (72)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:23,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:23,360 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:23,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:23,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1529401221, now seen corresponding path program 1 times [2022-11-03 02:25:23,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:23,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810662244] [2022-11-03 02:25:23,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:23,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:23,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:23,363 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:23,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-03 02:25:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:24,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:24,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:24,101 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 02:25:24,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:24,275 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 02:25:24,276 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:24,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810662244] [2022-11-03 02:25:24,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810662244] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:24,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1318458191] [2022-11-03 02:25:24,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:24,276 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:24,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:24,277 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:24,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2022-11-03 02:25:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:25,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:25,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:25,267 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 02:25:25,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:25,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1318458191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:25,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:25,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:25,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071897050] [2022-11-03 02:25:25,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:25,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:25,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:25,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:25,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:25,269 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 02:25:25,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:25,576 INFO L93 Difference]: Finished difference Result 1483 states and 1945 transitions. [2022-11-03 02:25:25,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:25,577 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 02:25:25,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:25,579 INFO L225 Difference]: With dead ends: 1483 [2022-11-03 02:25:25,579 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:25,580 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 02:25:25,580 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 02:25:25,581 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 02:25:25,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:25,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:25,706 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 02:25:25,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1091 transitions. [2022-11-03 02:25:25,708 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1091 transitions. Word has length 218 [2022-11-03 02:25:25,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:25,709 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1091 transitions. [2022-11-03 02:25:25,709 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 02:25:25,709 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1091 transitions. [2022-11-03 02:25:25,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:25,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:25,712 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 02:25:25,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:25,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (74)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:26,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:26,129 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:26,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:26,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1164494969, now seen corresponding path program 1 times [2022-11-03 02:25:26,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:26,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385154193] [2022-11-03 02:25:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:26,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:26,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:26,131 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:26,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-11-03 02:25:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:26,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:26,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:26,801 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 02:25:26,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:26,969 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 02:25:26,969 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:26,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385154193] [2022-11-03 02:25:26,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385154193] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:26,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1077763725] [2022-11-03 02:25:26,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:26,970 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:26,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:26,971 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:26,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (76)] Waiting until timeout for monitored process [2022-11-03 02:25:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:27,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:27,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:27,966 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 02:25:27,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:27,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1077763725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:27,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:27,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:27,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976444669] [2022-11-03 02:25:27,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:27,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:27,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:27,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:27,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:27,969 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 02:25:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:28,306 INFO L93 Difference]: Finished difference Result 1475 states and 1928 transitions. [2022-11-03 02:25:28,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:28,307 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 02:25:28,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:28,308 INFO L225 Difference]: With dead ends: 1475 [2022-11-03 02:25:28,308 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:28,309 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 02:25:28,309 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 02:25:28,310 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 02:25:28,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:28,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:28,408 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 02:25:28,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1087 transitions. [2022-11-03 02:25:28,410 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1087 transitions. Word has length 218 [2022-11-03 02:25:28,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:28,410 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1087 transitions. [2022-11-03 02:25:28,410 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 02:25:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1087 transitions. [2022-11-03 02:25:28,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:28,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:28,414 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 02:25:28,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:28,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (76)] Ended with exit code 0 [2022-11-03 02:25:28,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:28,815 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:28,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:28,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2048003959, now seen corresponding path program 1 times [2022-11-03 02:25:28,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:28,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030383816] [2022-11-03 02:25:28,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:28,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:28,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:28,818 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:28,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-03 02:25:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:29,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:29,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:29,514 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 02:25:29,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:29,686 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 02:25:29,686 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:29,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030383816] [2022-11-03 02:25:29,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030383816] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:29,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1681449910] [2022-11-03 02:25:29,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:29,687 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:29,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:29,688 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:29,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2022-11-03 02:25:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:30,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:30,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:30,722 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 02:25:30,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:30,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1681449910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:30,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:30,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:30,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497963770] [2022-11-03 02:25:30,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:30,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:30,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:30,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:30,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:30,725 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 02:25:31,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:31,052 INFO L93 Difference]: Finished difference Result 1467 states and 1911 transitions. [2022-11-03 02:25:31,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:31,053 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 02:25:31,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:31,054 INFO L225 Difference]: With dead ends: 1467 [2022-11-03 02:25:31,054 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 02:25:31,054 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 02:25:31,054 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 02:25:31,055 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 02:25:31,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 02:25:31,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 02:25:31,125 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 02:25:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1083 transitions. [2022-11-03 02:25:31,126 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1083 transitions. Word has length 218 [2022-11-03 02:25:31,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:31,127 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1083 transitions. [2022-11-03 02:25:31,127 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 02:25:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1083 transitions. [2022-11-03 02:25:31,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:31,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:31,129 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 02:25:31,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (78)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:31,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:31,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:31,530 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:31,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:31,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1476229771, now seen corresponding path program 1 times [2022-11-03 02:25:31,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:31,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217890352] [2022-11-03 02:25:31,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:31,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:31,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:31,532 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:31,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-03 02:25:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:32,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:32,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:32,202 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 02:25:32,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:32,375 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 02:25:32,376 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:32,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217890352] [2022-11-03 02:25:32,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217890352] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:32,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1820244160] [2022-11-03 02:25:32,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:32,376 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:32,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:32,377 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:32,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2022-11-03 02:25:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:33,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:33,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:33,396 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 02:25:33,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:33,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1820244160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:33,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:33,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:33,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614578564] [2022-11-03 02:25:33,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:33,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:33,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:33,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:33,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:33,397 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 02:25:33,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:33,722 INFO L93 Difference]: Finished difference Result 1467 states and 1907 transitions. [2022-11-03 02:25:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:33,722 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 02:25:33,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:33,723 INFO L225 Difference]: With dead ends: 1467 [2022-11-03 02:25:33,723 INFO L226 Difference]: Without dead ends: 1061 [2022-11-03 02:25:33,724 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 02:25:33,724 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 02:25:33,724 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 02:25:33,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-11-03 02:25:33,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 844. [2022-11-03 02:25:33,786 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 02:25:33,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1081 transitions. [2022-11-03 02:25:33,787 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1081 transitions. Word has length 218 [2022-11-03 02:25:33,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:33,787 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1081 transitions. [2022-11-03 02:25:33,787 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 02:25:33,787 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1081 transitions. [2022-11-03 02:25:33,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:33,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:33,789 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 02:25:33,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:33,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (80)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:34,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:34,190 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:34,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:34,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1493881331, now seen corresponding path program 1 times [2022-11-03 02:25:34,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:34,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792315838] [2022-11-03 02:25:34,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:34,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:34,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:34,192 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:34,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-11-03 02:25:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:34,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:34,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:34,870 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 02:25:34,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:35,052 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 02:25:35,053 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:35,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792315838] [2022-11-03 02:25:35,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792315838] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:35,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [822168168] [2022-11-03 02:25:35,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:35,054 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:35,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:35,056 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:35,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (82)] Waiting until timeout for monitored process [2022-11-03 02:25:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:35,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:35,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:36,080 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 02:25:36,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:36,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [822168168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:36,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:36,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:36,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8204179] [2022-11-03 02:25:36,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:36,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:36,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:36,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:36,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:36,083 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 02:25:36,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:36,405 INFO L93 Difference]: Finished difference Result 1481 states and 1922 transitions. [2022-11-03 02:25:36,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:36,406 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 02:25:36,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:36,407 INFO L225 Difference]: With dead ends: 1481 [2022-11-03 02:25:36,407 INFO L226 Difference]: Without dead ends: 1075 [2022-11-03 02:25:36,408 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 02:25:36,408 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 02:25:36,408 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 02:25:36,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2022-11-03 02:25:36,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 844. [2022-11-03 02:25:36,470 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 02:25:36,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1077 transitions. [2022-11-03 02:25:36,471 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1077 transitions. Word has length 218 [2022-11-03 02:25:36,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:36,471 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1077 transitions. [2022-11-03 02:25:36,471 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 02:25:36,472 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1077 transitions. [2022-11-03 02:25:36,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:36,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:36,473 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 02:25:36,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Ended with exit code 0 [2022-11-03 02:25:36,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (82)] Ended with exit code 0 [2022-11-03 02:25:36,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:36,874 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:36,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:36,874 INFO L85 PathProgramCache]: Analyzing trace with hash 240223119, now seen corresponding path program 1 times [2022-11-03 02:25:36,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:36,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586994693] [2022-11-03 02:25:36,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:36,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:36,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:36,876 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:36,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-03 02:25:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:37,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:37,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:37,551 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 02:25:37,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:37,739 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 02:25:37,739 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:37,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586994693] [2022-11-03 02:25:37,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586994693] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:37,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1113181358] [2022-11-03 02:25:37,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:37,739 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:37,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:37,741 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:37,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (84)] Waiting until timeout for monitored process [2022-11-03 02:25:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:38,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:38,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:38,807 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 02:25:38,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:38,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1113181358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:38,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:38,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:38,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977197336] [2022-11-03 02:25:38,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:38,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:38,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:38,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:38,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:38,810 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 02:25:39,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:39,136 INFO L93 Difference]: Finished difference Result 1505 states and 1947 transitions. [2022-11-03 02:25:39,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:39,137 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 02:25:39,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:39,138 INFO L225 Difference]: With dead ends: 1505 [2022-11-03 02:25:39,138 INFO L226 Difference]: Without dead ends: 1099 [2022-11-03 02:25:39,139 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 02:25:39,139 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 02:25:39,139 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 02:25:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2022-11-03 02:25:39,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 848. [2022-11-03 02:25:39,198 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 02:25:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1079 transitions. [2022-11-03 02:25:39,199 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1079 transitions. Word has length 218 [2022-11-03 02:25:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:39,199 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1079 transitions. [2022-11-03 02:25:39,199 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 02:25:39,199 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1079 transitions. [2022-11-03 02:25:39,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:39,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:39,201 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 02:25:39,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (84)] Ended with exit code 0 [2022-11-03 02:25:39,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Ended with exit code 0 [2022-11-03 02:25:39,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:39,602 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:39,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:39,602 INFO L85 PathProgramCache]: Analyzing trace with hash -975930607, now seen corresponding path program 1 times [2022-11-03 02:25:39,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:39,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77415984] [2022-11-03 02:25:39,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:39,603 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:39,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:39,604 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:39,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-03 02:25:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:40,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:40,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:40,270 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 02:25:40,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:40,458 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 02:25:40,458 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:40,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77415984] [2022-11-03 02:25:40,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77415984] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:40,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1154364931] [2022-11-03 02:25:40,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:40,458 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:40,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:40,461 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:40,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Waiting until timeout for monitored process [2022-11-03 02:25:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:41,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:25:41,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:41,514 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 02:25:41,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:25:41,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1154364931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:41,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:41,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 02:25:41,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478724772] [2022-11-03 02:25:41,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:41,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:25:41,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:41,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:25:41,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:25:41,516 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 02:25:41,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:41,847 INFO L93 Difference]: Finished difference Result 1517 states and 1953 transitions. [2022-11-03 02:25:41,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:25:41,848 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 02:25:41,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:41,849 INFO L225 Difference]: With dead ends: 1517 [2022-11-03 02:25:41,849 INFO L226 Difference]: Without dead ends: 1111 [2022-11-03 02:25:41,850 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 02:25:41,851 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 02:25:41,851 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 02:25:41,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2022-11-03 02:25:41,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 852. [2022-11-03 02:25:41,913 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 02:25:41,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1081 transitions. [2022-11-03 02:25:41,914 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1081 transitions. Word has length 218 [2022-11-03 02:25:41,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:41,915 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1081 transitions. [2022-11-03 02:25:41,915 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 02:25:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1081 transitions. [2022-11-03 02:25:41,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 02:25:41,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:41,917 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 02:25:41,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:42,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Ended with exit code 0 [2022-11-03 02:25:42,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:42,325 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:42,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:42,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1393327213, now seen corresponding path program 1 times [2022-11-03 02:25:42,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:42,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442498174] [2022-11-03 02:25:42,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:42,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:42,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:42,327 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:42,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-03 02:25:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:42,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:42,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:43,015 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 02:25:43,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:43,183 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 02:25:43,183 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:43,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442498174] [2022-11-03 02:25:43,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442498174] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:43,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1087629173] [2022-11-03 02:25:43,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:43,184 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:43,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:43,185 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:43,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Waiting until timeout for monitored process [2022-11-03 02:25:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:44,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:25:44,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:44,451 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 02:25:44,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:44,536 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 02:25:44,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1087629173] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:44,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620979417] [2022-11-03 02:25:44,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:44,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:25:44,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:25:44,545 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:25:44,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2022-11-03 02:25:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:45,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:45,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:45,187 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 02:25:45,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:45,381 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 02:25:45,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620979417] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:45,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 02:25:45,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 8, 10, 10] total 24 [2022-11-03 02:25:45,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765324355] [2022-11-03 02:25:45,382 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 02:25:45,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-03 02:25:45,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:45,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-03 02:25:45,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2022-11-03 02:25:45,384 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 02:25:47,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:47,071 INFO L93 Difference]: Finished difference Result 1273 states and 1622 transitions. [2022-11-03 02:25:47,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 02:25:47,071 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 02:25:47,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:47,072 INFO L225 Difference]: With dead ends: 1273 [2022-11-03 02:25:47,072 INFO L226 Difference]: Without dead ends: 660 [2022-11-03 02:25:47,073 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 02:25:47,073 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 2743 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:47,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2743 Valid, 1732 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 02:25:47,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-11-03 02:25:47,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 650. [2022-11-03 02:25:47,135 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 02:25:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 845 transitions. [2022-11-03 02:25:47,136 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 845 transitions. Word has length 218 [2022-11-03 02:25:47,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:47,136 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 845 transitions. [2022-11-03 02:25:47,136 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 02:25:47,136 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 845 transitions. [2022-11-03 02:25:47,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:25:47,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:47,138 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 02:25:47,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:47,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:47,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:47,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:25:47,739 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:47,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:47,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1434225572, now seen corresponding path program 1 times [2022-11-03 02:25:47,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:25:47,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047216055] [2022-11-03 02:25:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:47,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:25:47,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:25:47,742 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:25:47,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-11-03 02:25:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:48,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:25:48,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:49,434 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 02:25:49,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:49,524 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:25:49,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047216055] [2022-11-03 02:25:49,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047216055] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:25:49,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [955310846] [2022-11-03 02:25:49,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:49,525 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:25:49,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:25:49,525 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:25:49,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (91)] Waiting until timeout for monitored process [2022-11-03 02:25:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:51,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:25:51,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:52,268 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 02:25:52,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:52,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [955310846] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:25:52,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047211214] [2022-11-03 02:25:52,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:52,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:25:52,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:25:52,599 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:25:52,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2022-11-03 02:25:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:53,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:25:53,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:54,851 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 02:25:54,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:55,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047211214] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:25:55,067 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:25:55,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19 [2022-11-03 02:25:55,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014367782] [2022-11-03 02:25:55,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:25:55,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-03 02:25:55,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:25:55,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-03 02:25:55,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2022-11-03 02:25:55,070 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 02:26:20,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:20,538 INFO L93 Difference]: Finished difference Result 7222 states and 9506 transitions. [2022-11-03 02:26:20,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2022-11-03 02:26:20,539 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 02:26:20,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:20,545 INFO L225 Difference]: With dead ends: 7222 [2022-11-03 02:26:20,545 INFO L226 Difference]: Without dead ends: 6636 [2022-11-03 02:26:20,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1874 GetRequests, 1691 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11833 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=6652, Invalid=27388, Unknown=0, NotChecked=0, Total=34040 [2022-11-03 02:26:20,550 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 10663 mSDsluCounter, 13956 mSDsCounter, 0 mSdLazyCounter, 4551 mSolverCounterSat, 1069 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s 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, 6.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:20,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10663 Valid, 15562 Invalid, 5620 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1069 Valid, 4551 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-03 02:26:20,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6636 states. [2022-11-03 02:26:20,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6636 to 739. [2022-11-03 02:26:20,756 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 02:26:20,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 965 transitions. [2022-11-03 02:26:20,759 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 965 transitions. Word has length 373 [2022-11-03 02:26:20,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:20,759 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 965 transitions. [2022-11-03 02:26:20,759 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 02:26:20,760 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 965 transitions. [2022-11-03 02:26:20,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:26:20,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:20,762 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 02:26:20,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (90)] Ended with exit code 0 [2022-11-03 02:26:21,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2022-11-03 02:26:21,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (91)] Ended with exit code 0 [2022-11-03 02:26:21,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:26:21,385 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:21,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:21,386 INFO L85 PathProgramCache]: Analyzing trace with hash -674592030, now seen corresponding path program 1 times [2022-11-03 02:26:21,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:26:21,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939640254] [2022-11-03 02:26:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:21,388 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:26:21,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:26:21,389 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:26:21,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2022-11-03 02:26:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:22,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:26:22,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:23,083 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 02:26:23,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:26:23,146 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:26:23,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939640254] [2022-11-03 02:26:23,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [939640254] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:26:23,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1516425941] [2022-11-03 02:26:23,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:23,147 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:26:23,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:26:23,153 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:26:23,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (94)] Waiting until timeout for monitored process [2022-11-03 02:26:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:24,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:26:24,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:26,564 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 02:26:26,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:26:26,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1516425941] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:26:26,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501923227] [2022-11-03 02:26:26,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:26,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:26:26,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:26:26,979 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:26:26,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2022-11-03 02:26:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:27,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:26:27,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:29,230 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 02:26:29,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:26:29,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501923227] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:26:29,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:26:29,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 02:26:29,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261077001] [2022-11-03 02:26:29,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:26:29,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:26:29,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:26:29,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:26:29,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:26:29,482 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 02:26:54,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:54,331 INFO L93 Difference]: Finished difference Result 8324 states and 10975 transitions. [2022-11-03 02:26:54,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-11-03 02:26:54,332 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 02:26:54,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:54,337 INFO L225 Difference]: With dead ends: 8324 [2022-11-03 02:26:54,337 INFO L226 Difference]: Without dead ends: 7659 [2022-11-03 02:26:54,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1869 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11475 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=6603, Invalid=26339, Unknown=0, NotChecked=0, Total=32942 [2022-11-03 02:26:54,342 INFO L413 NwaCegarLoop]: 1319 mSDtfsCounter, 13076 mSDsluCounter, 13135 mSDsCounter, 0 mSdLazyCounter, 4131 mSolverCounterSat, 1166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s 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, 5.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:54,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13076 Valid, 14454 Invalid, 5297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1166 Valid, 4131 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-03 02:26:54,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2022-11-03 02:26:54,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 773. [2022-11-03 02:26:54,562 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 02:26:54,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1006 transitions. [2022-11-03 02:26:54,563 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1006 transitions. Word has length 373 [2022-11-03 02:26:54,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:54,563 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1006 transitions. [2022-11-03 02:26:54,564 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 02:26:54,564 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1006 transitions. [2022-11-03 02:26:54,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:26:54,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:54,567 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 02:26:54,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2022-11-03 02:26:54,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (93)] Ended with exit code 0 [2022-11-03 02:26:54,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (94)] Forceful destruction successful, exit code 0 [2022-11-03 02:26:55,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:26:55,181 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:55,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:55,182 INFO L85 PathProgramCache]: Analyzing trace with hash 751728232, now seen corresponding path program 1 times [2022-11-03 02:26:55,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:26:55,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210818879] [2022-11-03 02:26:55,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:55,183 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:26:55,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:26:55,184 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:26:55,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2022-11-03 02:26:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:56,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:26:56,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:56,906 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 02:26:56,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:26:56,973 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:26:56,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210818879] [2022-11-03 02:26:56,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210818879] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:26:56,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [334970365] [2022-11-03 02:26:56,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:56,973 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:26:56,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:26:56,974 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:26:56,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (97)] Waiting until timeout for monitored process [2022-11-03 02:26:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:58,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:26:58,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:27:00,443 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 02:27:00,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:27:00,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [334970365] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:27:00,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599367722] [2022-11-03 02:27:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:00,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:27:00,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:27:00,865 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:27:00,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2022-11-03 02:27:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:01,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:27:01,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:27:03,147 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 02:27:03,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:27:03,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599367722] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:27:03,391 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:27:03,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 02:27:03,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468499108] [2022-11-03 02:27:03,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:27:03,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:27:03,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:27:03,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:27:03,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:27:03,397 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 02:27:28,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:27:28,261 INFO L93 Difference]: Finished difference Result 8412 states and 11014 transitions. [2022-11-03 02:27:28,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-11-03 02:27:28,261 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 02:27:28,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:27:28,267 INFO L225 Difference]: With dead ends: 8412 [2022-11-03 02:27:28,267 INFO L226 Difference]: Without dead ends: 7725 [2022-11-03 02:27:28,272 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 02:27:28,272 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 13544 mSDsluCounter, 13126 mSDsCounter, 0 mSdLazyCounter, 4385 mSolverCounterSat, 1207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s 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, 6.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:27:28,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13544 Valid, 14488 Invalid, 5592 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1207 Valid, 4385 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-03 02:27:28,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7725 states. [2022-11-03 02:27:28,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7725 to 793. [2022-11-03 02:27:28,453 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 02:27:28,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1025 transitions. [2022-11-03 02:27:28,454 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1025 transitions. Word has length 373 [2022-11-03 02:27:28,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:27:28,454 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1025 transitions. [2022-11-03 02:27:28,454 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 02:27:28,455 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1025 transitions. [2022-11-03 02:27:28,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:27:28,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:28,457 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 02:27:28,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2022-11-03 02:27:28,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (96)] Forceful destruction successful, exit code 0 [2022-11-03 02:27:28,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (97)] Ended with exit code 0 [2022-11-03 02:27:29,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:27:29,073 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:27:29,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:29,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1668840558, now seen corresponding path program 1 times [2022-11-03 02:27:29,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:27:29,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433141850] [2022-11-03 02:27:29,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:29,075 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:27:29,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:27:29,076 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:27:29,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2022-11-03 02:27:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:29,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:27:29,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:27:30,790 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 02:27:30,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:27:30,860 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:27:30,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433141850] [2022-11-03 02:27:30,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433141850] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:27:30,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [764393192] [2022-11-03 02:27:30,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:30,861 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:27:30,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:27:30,862 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:27:30,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (100)] Waiting until timeout for monitored process [2022-11-03 02:27:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:32,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:27:32,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:27:34,403 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 02:27:34,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:27:34,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [764393192] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:27:34,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932101550] [2022-11-03 02:27:34,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:34,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:27:34,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:27:34,892 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:27:34,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2022-11-03 02:27:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:35,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:27:35,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:27:36,731 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 02:27:36,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:27:36,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932101550] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:27:36,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:27:36,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 02:27:36,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117549919] [2022-11-03 02:27:36,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:27:36,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:27:36,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:27:36,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:27:36,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:27:36,970 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 02:28:04,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:04,909 INFO L93 Difference]: Finished difference Result 8336 states and 10877 transitions. [2022-11-03 02:28:04,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-11-03 02:28:04,910 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 02:28:04,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:04,915 INFO L225 Difference]: With dead ends: 8336 [2022-11-03 02:28:04,915 INFO L226 Difference]: Without dead ends: 7619 [2022-11-03 02:28:04,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1870 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11617 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=6661, Invalid=26645, Unknown=0, NotChecked=0, Total=33306 [2022-11-03 02:28:04,918 INFO L413 NwaCegarLoop]: 1169 mSDtfsCounter, 15258 mSDsluCounter, 12391 mSDsCounter, 0 mSdLazyCounter, 3886 mSolverCounterSat, 1302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15258 SdHoareTripleChecker+Valid, 13560 SdHoareTripleChecker+Invalid, 5188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1302 IncrementalHoareTripleChecker+Valid, 3886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:04,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15258 Valid, 13560 Invalid, 5188 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1302 Valid, 3886 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-03 02:28:04,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7619 states. [2022-11-03 02:28:05,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7619 to 807. [2022-11-03 02:28:05,081 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 02:28:05,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1033 transitions. [2022-11-03 02:28:05,082 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1033 transitions. Word has length 373 [2022-11-03 02:28:05,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:05,082 INFO L495 AbstractCegarLoop]: Abstraction has 807 states and 1033 transitions. [2022-11-03 02:28:05,083 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 02:28:05,083 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1033 transitions. [2022-11-03 02:28:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:28:05,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:05,085 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 02:28:05,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (100)] Ended with exit code 0 [2022-11-03 02:28:05,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (99)] Ended with exit code 0 [2022-11-03 02:28:05,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Forceful destruction successful, exit code 0 [2022-11-03 02:28:05,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:28:05,686 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:05,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:05,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1657315212, now seen corresponding path program 1 times [2022-11-03 02:28:05,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:28:05,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081205230] [2022-11-03 02:28:05,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:05,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:28:05,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:28:05,689 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:28:05,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2022-11-03 02:28:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:06,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:28:06,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:28:07,412 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 02:28:07,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:28:07,489 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:28:07,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081205230] [2022-11-03 02:28:07,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081205230] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:28:07,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [687219021] [2022-11-03 02:28:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:07,490 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:28:07,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:28:07,491 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:28:07,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (103)] Waiting until timeout for monitored process [2022-11-03 02:28:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:09,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:28:09,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:28:10,916 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 02:28:10,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:28:11,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [687219021] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:28:11,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278495714] [2022-11-03 02:28:11,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:11,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:28:11,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:28:11,403 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:28:11,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2022-11-03 02:28:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:12,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:28:12,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:28:13,150 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 02:28:13,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:28:13,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278495714] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:28:13,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:28:13,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 02:28:13,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410314480] [2022-11-03 02:28:13,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:28:13,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:28:13,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:28:13,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:28:13,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:28:13,354 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 02:28:26,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:26,366 INFO L93 Difference]: Finished difference Result 5569 states and 7191 transitions. [2022-11-03 02:28:26,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-03 02:28:26,366 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 02:28:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:26,369 INFO L225 Difference]: With dead ends: 5569 [2022-11-03 02:28:26,369 INFO L226 Difference]: Without dead ends: 4838 [2022-11-03 02:28:26,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1806 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3918 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=3215, Invalid=10827, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 02:28:26,390 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 14095 mSDsluCounter, 9112 mSDsCounter, 0 mSdLazyCounter, 2741 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s 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, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:26,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14095 Valid, 9857 Invalid, 3617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 2741 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-03 02:28:26,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2022-11-03 02:28:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 829. [2022-11-03 02:28:26,539 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 02:28:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1051 transitions. [2022-11-03 02:28:26,540 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1051 transitions. Word has length 373 [2022-11-03 02:28:26,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:26,540 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1051 transitions. [2022-11-03 02:28:26,540 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 02:28:26,540 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1051 transitions. [2022-11-03 02:28:26,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:28:26,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:26,542 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 02:28:26,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2022-11-03 02:28:26,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (102)] Forceful destruction successful, exit code 0 [2022-11-03 02:28:26,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (103)] Forceful destruction successful, exit code 0 [2022-11-03 02:28:27,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:28:27,146 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:27,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:27,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1260607878, now seen corresponding path program 1 times [2022-11-03 02:28:27,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:28:27,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173836167] [2022-11-03 02:28:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:27,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:28:27,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:28:27,148 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:28:27,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2022-11-03 02:28:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:28,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:28:28,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:28:28,885 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 02:28:28,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:28:28,962 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:28:28,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173836167] [2022-11-03 02:28:28,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173836167] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:28:28,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1229997061] [2022-11-03 02:28:28,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:28,962 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:28:28,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:28:28,963 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:28:28,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (106)] Waiting until timeout for monitored process [2022-11-03 02:28:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:30,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:28:30,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:28:32,504 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 02:28:32,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:28:33,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1229997061] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:28:33,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965861369] [2022-11-03 02:28:33,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:33,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:28:33,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:28:33,037 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:28:33,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2022-11-03 02:28:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:33,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:28:33,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:28:35,283 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 02:28:35,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:28:35,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965861369] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:28:35,534 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:28:35,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 02:28:35,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971127300] [2022-11-03 02:28:35,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:28:35,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:28:35,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:28:35,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:28:35,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:28:35,542 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 02:28:50,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:50,418 INFO L93 Difference]: Finished difference Result 5881 states and 7484 transitions. [2022-11-03 02:28:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-03 02:28:50,418 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 02:28:50,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:50,422 INFO L225 Difference]: With dead ends: 5881 [2022-11-03 02:28:50,422 INFO L226 Difference]: Without dead ends: 5142 [2022-11-03 02:28:50,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1806 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3929 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=3215, Invalid=10827, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 02:28:50,424 INFO L413 NwaCegarLoop]: 1204 mSDtfsCounter, 12353 mSDsluCounter, 10437 mSDsCounter, 0 mSdLazyCounter, 3258 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 4.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:50,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12353 Valid, 11641 Invalid, 4102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 3258 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-03 02:28:50,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2022-11-03 02:28:50,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 893. [2022-11-03 02:28:50,607 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 02:28:50,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1128 transitions. [2022-11-03 02:28:50,610 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1128 transitions. Word has length 373 [2022-11-03 02:28:50,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:50,610 INFO L495 AbstractCegarLoop]: Abstraction has 893 states and 1128 transitions. [2022-11-03 02:28:50,610 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 02:28:50,610 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1128 transitions. [2022-11-03 02:28:50,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:28:50,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:50,613 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 02:28:50,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (106)] Ended with exit code 0 [2022-11-03 02:28:50,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Forceful destruction successful, exit code 0 [2022-11-03 02:28:51,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (105)] Ended with exit code 0 [2022-11-03 02:28:51,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:28:51,213 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:51,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:51,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1203997440, now seen corresponding path program 1 times [2022-11-03 02:28:51,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:28:51,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999846248] [2022-11-03 02:28:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:51,215 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:28:51,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:28:51,216 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:28:51,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2022-11-03 02:28:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:52,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:28:52,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:28:52,892 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 02:28:52,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:28:52,974 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:28:52,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999846248] [2022-11-03 02:28:52,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999846248] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:28:52,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1682381559] [2022-11-03 02:28:52,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:52,974 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:28:52,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:28:52,975 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:28:52,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (109)] Waiting until timeout for monitored process [2022-11-03 02:28:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:54,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:28:54,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:28:56,387 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 02:28:56,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:28:56,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1682381559] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:28:56,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113613912] [2022-11-03 02:28:56,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:56,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:28:56,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:28:56,874 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:28:56,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2022-11-03 02:28:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:57,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:28:57,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:28:58,833 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 02:28:58,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:28:59,437 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 02:28:59,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113613912] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:28:59,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-03 02:28:59,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9, 9] total 25 [2022-11-03 02:28:59,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420376265] [2022-11-03 02:28:59,438 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-03 02:28:59,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 02:28:59,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:28:59,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 02:28:59,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2022-11-03 02:28:59,439 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 02:29:05,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:05,903 INFO L93 Difference]: Finished difference Result 4579 states and 5770 transitions. [2022-11-03 02:29:05,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-03 02:29:05,904 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 02:29:05,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:05,906 INFO L225 Difference]: With dead ends: 4579 [2022-11-03 02:29:05,906 INFO L226 Difference]: Without dead ends: 4001 [2022-11-03 02:29:05,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1944 GetRequests, 1860 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1667 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1720, Invalid=5590, Unknown=0, NotChecked=0, Total=7310 [2022-11-03 02:29:05,907 INFO L413 NwaCegarLoop]: 1067 mSDtfsCounter, 6200 mSDsluCounter, 9585 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:05,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6200 Valid, 10652 Invalid, 3174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 02:29:05,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2022-11-03 02:29:06,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 909. [2022-11-03 02:29:06,101 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 02:29:06,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1145 transitions. [2022-11-03 02:29:06,103 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1145 transitions. Word has length 373 [2022-11-03 02:29:06,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:06,103 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1145 transitions. [2022-11-03 02:29:06,104 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 02:29:06,104 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1145 transitions. [2022-11-03 02:29:06,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:29:06,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:06,107 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 02:29:06,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Forceful destruction successful, exit code 0 [2022-11-03 02:29:06,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (108)] Forceful destruction successful, exit code 0 [2022-11-03 02:29:06,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (109)] Ended with exit code 0 [2022-11-03 02:29:06,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:29:06,721 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:06,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:06,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2139075964, now seen corresponding path program 1 times [2022-11-03 02:29:06,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:29:06,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615841939] [2022-11-03 02:29:06,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:06,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:29:06,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:29:06,724 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:29:06,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (111)] Waiting until timeout for monitored process [2022-11-03 02:29:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:07,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:29:07,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:09,409 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 02:29:09,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:09,961 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:29:09,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615841939] [2022-11-03 02:29:09,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615841939] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:09,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [697817443] [2022-11-03 02:29:09,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:09,961 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:29:09,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:29:09,962 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:29:09,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (112)] Waiting until timeout for monitored process [2022-11-03 02:29:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:11,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:29:11,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:13,507 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 02:29:13,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:14,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [697817443] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:14,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485157876] [2022-11-03 02:29:14,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:14,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:14,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:14,055 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:29:14,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2022-11-03 02:29:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:14,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 02:29:14,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:16,562 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 02:29:16,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:16,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485157876] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:16,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:29:16,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 02:29:16,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35994938] [2022-11-03 02:29:16,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:29:16,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:29:16,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:29:16,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:29:16,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:29:16,629 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 02:29:21,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:21,109 INFO L93 Difference]: Finished difference Result 3575 states and 4503 transitions. [2022-11-03 02:29:21,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-03 02:29:21,110 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 02:29:21,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:21,112 INFO L225 Difference]: With dead ends: 3575 [2022-11-03 02:29:21,112 INFO L226 Difference]: Without dead ends: 3053 [2022-11-03 02:29:21,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1621 GetRequests, 1543 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=990, Invalid=5172, Unknown=0, NotChecked=0, Total=6162 [2022-11-03 02:29:21,113 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 2376 mSDsluCounter, 9853 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:21,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2382 Valid, 10589 Invalid, 2579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1316 Invalid, 0 Unknown, 1137 Unchecked, 1.7s Time] [2022-11-03 02:29:21,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2022-11-03 02:29:21,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 1255. [2022-11-03 02:29:21,340 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 02:29:21,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1574 transitions. [2022-11-03 02:29:21,341 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1574 transitions. Word has length 373 [2022-11-03 02:29:21,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:21,342 INFO L495 AbstractCegarLoop]: Abstraction has 1255 states and 1574 transitions. [2022-11-03 02:29:21,342 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 02:29:21,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1574 transitions. [2022-11-03 02:29:21,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:29:21,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:21,345 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 02:29:21,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2022-11-03 02:29:21,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (112)] Ended with exit code 0 [2022-11-03 02:29:21,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (111)] Forceful destruction successful, exit code 0 [2022-11-03 02:29:21,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:29:21,945 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:21,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:21,946 INFO L85 PathProgramCache]: Analyzing trace with hash 873719046, now seen corresponding path program 1 times [2022-11-03 02:29:21,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:29:21,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017487140] [2022-11-03 02:29:21,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:21,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:29:21,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:29:21,948 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:29:21,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (114)] Waiting until timeout for monitored process [2022-11-03 02:29:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:22,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:29:22,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:24,766 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 02:29:24,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:25,312 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:29:25,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017487140] [2022-11-03 02:29:25,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017487140] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:25,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1954998446] [2022-11-03 02:29:25,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:25,313 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:29:25,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:29:25,314 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:29:25,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (115)] Waiting until timeout for monitored process [2022-11-03 02:29:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:26,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:29:26,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:28,829 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 02:29:28,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:29,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1954998446] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:29,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805590101] [2022-11-03 02:29:29,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:29,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:29,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:29,309 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:29:29,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2022-11-03 02:29:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:30,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 02:29:30,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:31,764 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 02:29:31,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:31,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805590101] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:31,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:29:31,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 02:29:31,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59987112] [2022-11-03 02:29:31,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:29:31,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:29:31,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:29:31,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:29:31,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:29:31,832 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 02:29:35,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:35,484 INFO L93 Difference]: Finished difference Result 3562 states and 4498 transitions. [2022-11-03 02:29:35,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-03 02:29:35,485 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 02:29:35,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:35,487 INFO L225 Difference]: With dead ends: 3562 [2022-11-03 02:29:35,487 INFO L226 Difference]: Without dead ends: 2702 [2022-11-03 02:29:35,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1607 GetRequests, 1540 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=844, Invalid=3712, Unknown=0, NotChecked=0, Total=4556 [2022-11-03 02:29:35,488 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 2616 mSDsluCounter, 8485 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:35,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2622 Valid, 9011 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1032 Invalid, 0 Unknown, 704 Unchecked, 1.3s Time] [2022-11-03 02:29:35,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2022-11-03 02:29:35,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 1263. [2022-11-03 02:29:35,698 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 02:29:35,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1584 transitions. [2022-11-03 02:29:35,699 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1584 transitions. Word has length 373 [2022-11-03 02:29:35,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:35,699 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 1584 transitions. [2022-11-03 02:29:35,699 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 02:29:35,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1584 transitions. [2022-11-03 02:29:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:29:35,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:35,702 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 02:29:35,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (115)] Ended with exit code 0 [2022-11-03 02:29:35,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2022-11-03 02:29:36,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (114)] Forceful destruction successful, exit code 0 [2022-11-03 02:29:36,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:29:36,303 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:36,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:36,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1492316024, now seen corresponding path program 1 times [2022-11-03 02:29:36,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:29:36,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570654091] [2022-11-03 02:29:36,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:36,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:29:36,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:29:36,305 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:29:36,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (117)] Waiting until timeout for monitored process [2022-11-03 02:29:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:37,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:29:37,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:39,171 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 02:29:39,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:39,742 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:29:39,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570654091] [2022-11-03 02:29:39,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570654091] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:39,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [84564357] [2022-11-03 02:29:39,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:39,743 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:29:39,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:29:39,745 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:29:39,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (118)] Waiting until timeout for monitored process [2022-11-03 02:29:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:41,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:29:41,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:43,188 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 02:29:43,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:43,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [84564357] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:43,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611864163] [2022-11-03 02:29:43,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:43,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:43,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:43,696 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:29:43,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2022-11-03 02:29:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:44,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 02:29:44,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:46,134 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 02:29:46,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:46,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611864163] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:46,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:29:46,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 02:29:46,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851368975] [2022-11-03 02:29:46,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:29:46,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:29:46,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:29:46,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:29:46,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:29:46,198 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 02:29:50,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:50,064 INFO L93 Difference]: Finished difference Result 3209 states and 4053 transitions. [2022-11-03 02:29:50,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-03 02:29:50,065 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 02:29:50,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:50,068 INFO L225 Difference]: With dead ends: 3209 [2022-11-03 02:29:50,068 INFO L226 Difference]: Without dead ends: 2687 [2022-11-03 02:29:50,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1614 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1122 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=915, Invalid=4487, Unknown=0, NotChecked=0, Total=5402 [2022-11-03 02:29:50,069 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 2369 mSDsluCounter, 8737 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:50,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2375 Valid, 9232 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1046 Invalid, 0 Unknown, 836 Unchecked, 1.3s Time] [2022-11-03 02:29:50,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2022-11-03 02:29:50,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1267. [2022-11-03 02:29:50,306 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 02:29:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1588 transitions. [2022-11-03 02:29:50,307 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1588 transitions. Word has length 373 [2022-11-03 02:29:50,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:50,307 INFO L495 AbstractCegarLoop]: Abstraction has 1267 states and 1588 transitions. [2022-11-03 02:29:50,308 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 02:29:50,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1588 transitions. [2022-11-03 02:29:50,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:29:50,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:50,310 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 02:29:50,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (117)] Forceful destruction successful, exit code 0 [2022-11-03 02:29:50,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Ended with exit code 0 [2022-11-03 02:29:50,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (118)] Ended with exit code 0 [2022-11-03 02:29:50,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:29:50,911 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:50,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:50,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1155288330, now seen corresponding path program 1 times [2022-11-03 02:29:50,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:29:50,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205874277] [2022-11-03 02:29:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:50,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:29:50,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:29:50,914 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:29:50,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (120)] Waiting until timeout for monitored process [2022-11-03 02:29:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:51,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:29:51,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:53,630 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 02:29:53,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:54,197 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:29:54,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205874277] [2022-11-03 02:29:54,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205874277] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:54,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1011746192] [2022-11-03 02:29:54,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:54,197 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:29:54,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:29:54,198 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:29:54,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (121)] Waiting until timeout for monitored process [2022-11-03 02:29:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:55,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:29:55,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:57,812 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 02:29:57,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:58,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1011746192] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:58,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682867542] [2022-11-03 02:29:58,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:58,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:58,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:58,358 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:29:58,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process [2022-11-03 02:29:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:59,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 02:29:59,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:00,764 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 02:30:00,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:00,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682867542] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:00,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:30:00,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 02:30:00,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487165768] [2022-11-03 02:30:00,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:30:00,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:30:00,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:30:00,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:30:00,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:30:00,837 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 02:30:04,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:04,731 INFO L93 Difference]: Finished difference Result 3657 states and 4606 transitions. [2022-11-03 02:30:04,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-03 02:30:04,732 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 02:30:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:04,734 INFO L225 Difference]: With dead ends: 3657 [2022-11-03 02:30:04,734 INFO L226 Difference]: Without dead ends: 2797 [2022-11-03 02:30:04,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1610 GetRequests, 1539 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=836, Invalid=4276, Unknown=0, NotChecked=0, Total=5112 [2022-11-03 02:30:04,735 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 1774 mSDsluCounter, 9629 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:04,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 10263 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1106 Invalid, 0 Unknown, 944 Unchecked, 1.4s Time] [2022-11-03 02:30:04,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2022-11-03 02:30:04,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1357. [2022-11-03 02:30:04,964 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 02:30:04,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1684 transitions. [2022-11-03 02:30:04,966 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1684 transitions. Word has length 373 [2022-11-03 02:30:04,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:04,966 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1684 transitions. [2022-11-03 02:30:04,966 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 02:30:04,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1684 transitions. [2022-11-03 02:30:04,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:30:04,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:04,969 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 02:30:04,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (121)] Ended with exit code 0 [2022-11-03 02:30:05,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (120)] Ended with exit code 0 [2022-11-03 02:30:05,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Ended with exit code 0 [2022-11-03 02:30:05,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:30:05,570 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:05,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:05,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1257625884, now seen corresponding path program 1 times [2022-11-03 02:30:05,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:30:05,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146468966] [2022-11-03 02:30:05,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:05,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:30:05,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:30:05,573 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:30:05,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (123)] Waiting until timeout for monitored process [2022-11-03 02:30:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:06,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:30:06,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:08,311 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 02:30:08,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:08,923 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:30:08,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146468966] [2022-11-03 02:30:08,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146468966] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:08,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [985039179] [2022-11-03 02:30:08,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:08,923 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:30:08,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:30:08,924 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:30:08,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (124)] Waiting until timeout for monitored process [2022-11-03 02:30:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:10,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:30:10,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:12,612 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 02:30:12,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:13,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [985039179] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:13,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675548445] [2022-11-03 02:30:13,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:13,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:30:13,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:30:13,195 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:30:13,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Waiting until timeout for monitored process [2022-11-03 02:30:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:13,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:30:13,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:15,665 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 02:30:15,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:15,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675548445] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:15,808 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:30:15,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 02:30:15,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459112182] [2022-11-03 02:30:15,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:30:15,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:30:15,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:30:15,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:30:15,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 02:30:15,811 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 02:30:23,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:23,404 INFO L93 Difference]: Finished difference Result 6566 states and 8258 transitions. [2022-11-03 02:30:23,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 02:30:23,404 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 02:30:23,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:23,407 INFO L225 Difference]: With dead ends: 6566 [2022-11-03 02:30:23,407 INFO L226 Difference]: Without dead ends: 5297 [2022-11-03 02:30:23,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 02:30:23,410 INFO L413 NwaCegarLoop]: 1001 mSDtfsCounter, 3256 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:23,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3256 Valid, 5759 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-03 02:30:23,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2022-11-03 02:30:23,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 1431. [2022-11-03 02:30:23,637 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 02:30:23,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1781 transitions. [2022-11-03 02:30:23,638 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1781 transitions. Word has length 373 [2022-11-03 02:30:23,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:23,638 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 1781 transitions. [2022-11-03 02:30:23,638 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 02:30:23,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1781 transitions. [2022-11-03 02:30:23,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:30:23,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:23,641 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 02:30:23,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (124)] Ended with exit code 0 [2022-11-03 02:30:23,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (123)] Ended with exit code 0 [2022-11-03 02:30:24,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Ended with exit code 0 [2022-11-03 02:30:24,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,125 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:30:24,242 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:24,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:24,242 INFO L85 PathProgramCache]: Analyzing trace with hash -418616158, now seen corresponding path program 1 times [2022-11-03 02:30:24,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:30:24,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269570344] [2022-11-03 02:30:24,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:24,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:30:24,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:30:24,245 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:30:24,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (126)] Waiting until timeout for monitored process [2022-11-03 02:30:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:25,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:30:25,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:27,072 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 02:30:27,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:27,716 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:30:27,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269570344] [2022-11-03 02:30:27,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269570344] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:27,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [840632626] [2022-11-03 02:30:27,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:27,717 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:30:27,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:30:27,718 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:30:27,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (127)] Waiting until timeout for monitored process [2022-11-03 02:30:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:29,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:30:29,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:31,468 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 02:30:31,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:32,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [840632626] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:32,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077770702] [2022-11-03 02:30:32,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:32,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:30:32,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:30:32,052 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:30:32,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process [2022-11-03 02:30:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:32,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:30:32,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:35,348 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 02:30:35,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:35,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077770702] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:35,536 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:30:35,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 02:30:35,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272052314] [2022-11-03 02:30:35,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:30:35,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:30:35,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:30:35,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:30:35,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 02:30:35,537 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 02:30:41,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:41,832 INFO L93 Difference]: Finished difference Result 6862 states and 8638 transitions. [2022-11-03 02:30:41,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 02:30:41,832 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 02:30:41,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:41,835 INFO L225 Difference]: With dead ends: 6862 [2022-11-03 02:30:41,835 INFO L226 Difference]: Without dead ends: 5549 [2022-11-03 02:30:41,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 02:30:41,837 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 3026 mSDsluCounter, 4485 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:41,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3026 Valid, 5352 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:30:41,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5549 states. [2022-11-03 02:30:42,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 1485. [2022-11-03 02:30:42,136 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 02:30:42,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1850 transitions. [2022-11-03 02:30:42,138 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1850 transitions. Word has length 373 [2022-11-03 02:30:42,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:42,139 INFO L495 AbstractCegarLoop]: Abstraction has 1485 states and 1850 transitions. [2022-11-03 02:30:42,139 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 02:30:42,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1850 transitions. [2022-11-03 02:30:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:30:42,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:42,142 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 02:30:42,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (126)] Ended with exit code 0 [2022-11-03 02:30:42,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (127)] Ended with exit code 0 [2022-11-03 02:30:42,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Ended with exit code 0 [2022-11-03 02:30:42,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,128 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:30:42,743 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:42,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:42,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1190934498, now seen corresponding path program 1 times [2022-11-03 02:30:42,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:30:42,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278844866] [2022-11-03 02:30:42,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:42,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:30:42,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:30:42,745 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:30:42,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (129)] Waiting until timeout for monitored process [2022-11-03 02:30:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:43,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:30:43,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:44,997 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 02:30:44,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:45,604 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:30:45,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278844866] [2022-11-03 02:30:45,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278844866] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:45,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1489524131] [2022-11-03 02:30:45,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:45,605 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:30:45,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:30:45,606 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:30:45,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (130)] Waiting until timeout for monitored process [2022-11-03 02:30:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:47,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:30:47,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:48,671 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 02:30:48,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:49,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1489524131] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:49,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766573838] [2022-11-03 02:30:49,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:49,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:30:49,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:30:49,329 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:30:49,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Waiting until timeout for monitored process [2022-11-03 02:30:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:50,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:30:50,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:52,890 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 02:30:52,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:53,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766573838] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:53,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:30:53,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 02:30:53,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532396748] [2022-11-03 02:30:53,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:30:53,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:30:53,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:30:53,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:30:53,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 02:30:53,114 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 02:30:59,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:59,033 INFO L93 Difference]: Finished difference Result 6970 states and 8737 transitions. [2022-11-03 02:30:59,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 02:30:59,034 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 02:30:59,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:59,038 INFO L225 Difference]: With dead ends: 6970 [2022-11-03 02:30:59,038 INFO L226 Difference]: Without dead ends: 5623 [2022-11-03 02:30:59,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 02:30:59,040 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 3183 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:59,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 5265 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:30:59,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5623 states. [2022-11-03 02:30:59,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5623 to 1455. [2022-11-03 02:30:59,286 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 02:30:59,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1805 transitions. [2022-11-03 02:30:59,287 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1805 transitions. Word has length 373 [2022-11-03 02:30:59,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:59,288 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1805 transitions. [2022-11-03 02:30:59,288 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 02:30:59,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1805 transitions. [2022-11-03 02:30:59,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:30:59,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:59,292 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 02:30:59,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Ended with exit code 0 [2022-11-03 02:30:59,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (130)] Forceful destruction successful, exit code 0 [2022-11-03 02:30:59,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (129)] Forceful destruction successful, exit code 0 [2022-11-03 02:30:59,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 131 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,130 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,129 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:30:59,902 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:59,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:59,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1558994142, now seen corresponding path program 1 times [2022-11-03 02:30:59,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:30:59,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144304422] [2022-11-03 02:30:59,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:59,903 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:30:59,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:30:59,904 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:30:59,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (132)] Waiting until timeout for monitored process [2022-11-03 02:31:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:00,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:31:00,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:31:03,220 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 02:31:03,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:31:03,279 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:31:03,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144304422] [2022-11-03 02:31:03,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144304422] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:31:03,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [217027052] [2022-11-03 02:31:03,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:03,280 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:31:03,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:31:03,281 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:31:03,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (133)] Waiting until timeout for monitored process [2022-11-03 02:31:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:04,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:31:04,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:31:07,698 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 02:31:07,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:31:07,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [217027052] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:31:07,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535965071] [2022-11-03 02:31:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:07,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:31:07,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:31:07,796 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:31:07,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Waiting until timeout for monitored process [2022-11-03 02:31:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:08,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:31:08,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:31:11,140 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 02:31:11,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:31:11,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535965071] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:31:11,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:31:11,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 02:31:11,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645562558] [2022-11-03 02:31:11,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:31:11,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 02:31:11,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:31:11,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 02:31:11,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:31:11,395 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 02:31:24,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:31:24,719 INFO L93 Difference]: Finished difference Result 5461 states and 6966 transitions. [2022-11-03 02:31:24,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-03 02:31:24,720 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 02:31:24,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:31:24,722 INFO L225 Difference]: With dead ends: 5461 [2022-11-03 02:31:24,722 INFO L226 Difference]: Without dead ends: 4110 [2022-11-03 02:31:24,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1333 GetRequests, 1216 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3158 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=2630, Invalid=11412, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 02:31:24,724 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 11172 mSDsluCounter, 19911 mSDsCounter, 0 mSdLazyCounter, 3173 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11172 SdHoareTripleChecker+Valid, 20722 SdHoareTripleChecker+Invalid, 7290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 3173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3709 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:31:24,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11172 Valid, 20722 Invalid, 7290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 3173 Invalid, 0 Unknown, 3709 Unchecked, 3.8s Time] [2022-11-03 02:31:24,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2022-11-03 02:31:25,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 1479. [2022-11-03 02:31:25,059 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 02:31:25,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1831 transitions. [2022-11-03 02:31:25,061 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1831 transitions. Word has length 373 [2022-11-03 02:31:25,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:31:25,061 INFO L495 AbstractCegarLoop]: Abstraction has 1479 states and 1831 transitions. [2022-11-03 02:31:25,061 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 02:31:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1831 transitions. [2022-11-03 02:31:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:31:25,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:25,064 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 02:31:25,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (132)] Forceful destruction successful, exit code 0 [2022-11-03 02:31:25,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (133)] Ended with exit code 0 [2022-11-03 02:31:25,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Forceful destruction successful, exit code 0 [2022-11-03 02:31:25,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 132 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,133 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,134 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:31:25,665 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:31:25,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:31:25,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1579862814, now seen corresponding path program 1 times [2022-11-03 02:31:25,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:31:25,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491380645] [2022-11-03 02:31:25,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:25,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:31:25,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:31:25,667 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:31:25,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (135)] Waiting until timeout for monitored process [2022-11-03 02:31:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:26,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:31:26,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:31:28,934 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 02:31:28,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:31:29,020 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:31:29,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491380645] [2022-11-03 02:31:29,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491380645] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:31:29,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1359377047] [2022-11-03 02:31:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:29,021 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:31:29,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:31:29,022 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:31:29,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (136)] Waiting until timeout for monitored process [2022-11-03 02:31:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:30,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:31:30,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:31:33,477 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 02:31:33,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:31:33,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1359377047] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:31:33,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659923595] [2022-11-03 02:31:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:33,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:31:33,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:31:33,595 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:31:33,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Waiting until timeout for monitored process [2022-11-03 02:31:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:34,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:31:34,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:31:36,269 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 02:31:36,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:31:36,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659923595] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:31:36,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:31:36,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 02:31:36,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914371054] [2022-11-03 02:31:36,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:31:36,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 02:31:36,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:31:36,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 02:31:36,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1466, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:31:36,562 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 02:31:59,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:31:59,095 INFO L93 Difference]: Finished difference Result 8983 states and 11569 transitions. [2022-11-03 02:31:59,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-11-03 02:31:59,095 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 02:31:59,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:31:59,100 INFO L225 Difference]: With dead ends: 8983 [2022-11-03 02:31:59,100 INFO L226 Difference]: Without dead ends: 7610 [2022-11-03 02:31:59,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1372 GetRequests, 1218 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6780 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=4482, Invalid=19698, Unknown=0, NotChecked=0, Total=24180 [2022-11-03 02:31:59,104 INFO L413 NwaCegarLoop]: 1021 mSDtfsCounter, 12882 mSDsluCounter, 23998 mSDsCounter, 0 mSdLazyCounter, 3636 mSolverCounterSat, 750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:31:59,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12882 Valid, 25019 Invalid, 9410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [750 Valid, 3636 Invalid, 0 Unknown, 5024 Unchecked, 4.7s Time] [2022-11-03 02:31:59,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2022-11-03 02:31:59,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 1513. [2022-11-03 02:31:59,432 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 02:31:59,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1873 transitions. [2022-11-03 02:31:59,433 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1873 transitions. Word has length 373 [2022-11-03 02:31:59,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:31:59,434 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 1873 transitions. [2022-11-03 02:31:59,434 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 02:31:59,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1873 transitions. [2022-11-03 02:31:59,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:31:59,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:59,436 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 02:31:59,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Ended with exit code 0 [2022-11-03 02:31:59,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (136)] Ended with exit code 0 [2022-11-03 02:31:59,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (135)] Ended with exit code 0 [2022-11-03 02:32:00,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,136 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,135 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:32:00,041 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:00,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:00,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1459915940, now seen corresponding path program 1 times [2022-11-03 02:32:00,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:32:00,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204936774] [2022-11-03 02:32:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:00,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:32:00,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:32:00,044 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:32:00,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (138)] Waiting until timeout for monitored process [2022-11-03 02:32:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:00,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:32:00,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:03,265 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 02:32:03,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:03,344 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:32:03,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204936774] [2022-11-03 02:32:03,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204936774] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:03,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1578428235] [2022-11-03 02:32:03,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:03,345 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:32:03,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:32:03,345 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:32:03,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (139)] Waiting until timeout for monitored process [2022-11-03 02:32:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:05,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:32:05,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:07,859 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 02:32:07,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:08,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1578428235] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:08,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785947787] [2022-11-03 02:32:08,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:08,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:08,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:08,015 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:08,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Waiting until timeout for monitored process [2022-11-03 02:32:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:08,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:32:08,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:11,646 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 02:32:11,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:11,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785947787] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:11,948 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:32:11,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 02:32:11,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394328833] [2022-11-03 02:32:11,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:11,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 02:32:11,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:32:11,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 02:32:11,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:32:11,951 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 02:32:23,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:23,432 INFO L93 Difference]: Finished difference Result 5433 states and 6876 transitions. [2022-11-03 02:32:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-11-03 02:32:23,432 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 02:32:23,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:23,435 INFO L225 Difference]: With dead ends: 5433 [2022-11-03 02:32:23,435 INFO L226 Difference]: Without dead ends: 4034 [2022-11-03 02:32:23,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1338 GetRequests, 1225 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2854 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=2568, Invalid=10542, Unknown=0, NotChecked=0, Total=13110 [2022-11-03 02:32:23,437 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 12135 mSDsluCounter, 14926 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12135 SdHoareTripleChecker+Valid, 15607 SdHoareTripleChecker+Invalid, 6124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3624 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:23,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12135 Valid, 15607 Invalid, 6124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2096 Invalid, 0 Unknown, 3624 Unchecked, 2.7s Time] [2022-11-03 02:32:23,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2022-11-03 02:32:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 1509. [2022-11-03 02:32:23,698 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 02:32:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1867 transitions. [2022-11-03 02:32:23,699 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1867 transitions. Word has length 373 [2022-11-03 02:32:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:23,700 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 1867 transitions. [2022-11-03 02:32:23,700 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 02:32:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1867 transitions. [2022-11-03 02:32:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:32:23,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:23,702 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 02:32:23,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (138)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:23,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (139)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:24,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Ended with exit code 0 [2022-11-03 02:32:24,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 138 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,139 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,140 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:24,303 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:24,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:24,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1155061592, now seen corresponding path program 1 times [2022-11-03 02:32:24,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:32:24,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186246126] [2022-11-03 02:32:24,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:24,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:32:24,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:32:24,306 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:32:24,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (141)] Waiting until timeout for monitored process [2022-11-03 02:32:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:25,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:32:25,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:27,638 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 02:32:27,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:27,730 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:32:27,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186246126] [2022-11-03 02:32:27,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186246126] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:27,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [153974684] [2022-11-03 02:32:27,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:27,731 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:32:27,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:32:27,732 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:32:27,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (142)] Waiting until timeout for monitored process [2022-11-03 02:32:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:29,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:32:29,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:32,309 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 02:32:32,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:32,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [153974684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:32,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253661898] [2022-11-03 02:32:32,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:32,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:32,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:32,437 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:32,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Waiting until timeout for monitored process [2022-11-03 02:32:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:33,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:32:33,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:36,073 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 02:32:36,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:36,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253661898] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:36,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:32:36,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 02:32:36,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217058801] [2022-11-03 02:32:36,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:36,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 02:32:36,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:32:36,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 02:32:36,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:32:36,349 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 02:32:48,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:48,819 INFO L93 Difference]: Finished difference Result 5534 states and 6939 transitions. [2022-11-03 02:32:48,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-11-03 02:32:48,820 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 02:32:48,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:48,823 INFO L225 Difference]: With dead ends: 5534 [2022-11-03 02:32:48,823 INFO L226 Difference]: Without dead ends: 4149 [2022-11-03 02:32:48,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1335 GetRequests, 1226 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2579 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=2375, Invalid=9835, Unknown=0, NotChecked=0, Total=12210 [2022-11-03 02:32:48,826 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 10016 mSDsluCounter, 21298 mSDsCounter, 0 mSdLazyCounter, 3335 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10016 SdHoareTripleChecker+Valid, 22167 SdHoareTripleChecker+Invalid, 7142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 3335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3322 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:48,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10016 Valid, 22167 Invalid, 7142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 3335 Invalid, 0 Unknown, 3322 Unchecked, 4.0s Time] [2022-11-03 02:32:48,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2022-11-03 02:32:49,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 1559. [2022-11-03 02:32:49,110 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 02:32:49,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 1929 transitions. [2022-11-03 02:32:49,112 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 1929 transitions. Word has length 373 [2022-11-03 02:32:49,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:49,112 INFO L495 AbstractCegarLoop]: Abstraction has 1559 states and 1929 transitions. [2022-11-03 02:32:49,112 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 02:32:49,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 1929 transitions. [2022-11-03 02:32:49,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:32:49,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:49,115 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 02:32:49,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Forceful destruction successful, exit code 0 [2022-11-03 02:32:49,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (142)] Ended with exit code 0 [2022-11-03 02:32:49,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (141)] Ended with exit code 0 [2022-11-03 02:32:49,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 143 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,142 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,141 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:32:49,716 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:49,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1180447510, now seen corresponding path program 1 times [2022-11-03 02:32:49,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:32:49,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123139240] [2022-11-03 02:32:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:49,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:32:49,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:32:49,718 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:32:49,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (144)] Waiting until timeout for monitored process [2022-11-03 02:32:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:50,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:32:50,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:52,839 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 02:32:52,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:52,917 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:32:52,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123139240] [2022-11-03 02:32:52,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2123139240] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:52,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2136169401] [2022-11-03 02:32:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:52,917 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:32:52,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:32:52,918 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:32:52,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (145)] Waiting until timeout for monitored process [2022-11-03 02:32:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:54,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:32:54,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:57,021 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 02:32:57,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:57,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2136169401] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:57,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187145841] [2022-11-03 02:32:57,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:57,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:32:57,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:57,064 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:32:57,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Waiting until timeout for monitored process [2022-11-03 02:32:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:57,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:32:57,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:32:59,742 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 02:32:59,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:32:59,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187145841] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:32:59,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:32:59,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 22 [2022-11-03 02:32:59,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507744422] [2022-11-03 02:32:59,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:59,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 02:32:59,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:32:59,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 02:32:59,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:32:59,955 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 02:33:06,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:06,732 INFO L93 Difference]: Finished difference Result 4541 states and 5651 transitions. [2022-11-03 02:33:06,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-03 02:33:06,738 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 02:33:06,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:06,741 INFO L225 Difference]: With dead ends: 4541 [2022-11-03 02:33:06,741 INFO L226 Difference]: Without dead ends: 3108 [2022-11-03 02:33:06,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1312 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1637, Invalid=5335, Unknown=0, NotChecked=0, Total=6972 [2022-11-03 02:33:06,743 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 6893 mSDsluCounter, 8846 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:06,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6893 Valid, 9469 Invalid, 2609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1356 Invalid, 0 Unknown, 1055 Unchecked, 1.8s Time] [2022-11-03 02:33:06,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2022-11-03 02:33:07,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 1525. [2022-11-03 02:33:07,004 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 02:33:07,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1880 transitions. [2022-11-03 02:33:07,005 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1880 transitions. Word has length 373 [2022-11-03 02:33:07,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:07,006 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 1880 transitions. [2022-11-03 02:33:07,006 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 02:33:07,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1880 transitions. [2022-11-03 02:33:07,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:33:07,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:07,008 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 02:33:07,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (145)] Ended with exit code 0 [2022-11-03 02:33:07,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Ended with exit code 0 [2022-11-03 02:33:07,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (144)] Ended with exit code 0 [2022-11-03 02:33:07,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 145 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,146 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,144 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:33:07,609 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:33:07,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:07,610 INFO L85 PathProgramCache]: Analyzing trace with hash 913980248, now seen corresponding path program 1 times [2022-11-03 02:33:07,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:33:07,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584425055] [2022-11-03 02:33:07,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:07,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:33:07,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:33:07,612 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:33:07,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (147)] Waiting until timeout for monitored process [2022-11-03 02:33:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:08,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:33:08,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:10,961 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 02:33:10,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:11,040 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:33:11,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584425055] [2022-11-03 02:33:11,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584425055] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:11,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [638461571] [2022-11-03 02:33:11,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:11,040 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:33:11,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:33:11,041 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:33:11,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (148)] Waiting until timeout for monitored process [2022-11-03 02:33:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:12,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:33:12,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:15,523 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 02:33:15,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:15,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [638461571] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:15,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931225463] [2022-11-03 02:33:15,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:15,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:15,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:15,675 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:33:15,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Waiting until timeout for monitored process [2022-11-03 02:33:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:16,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:33:16,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:19,514 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 02:33:19,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:19,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931225463] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:19,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:33:19,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 02:33:19,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690114608] [2022-11-03 02:33:19,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:33:19,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 02:33:19,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:33:19,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 02:33:19,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1457, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:33:19,865 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 02:33:32,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:32,606 INFO L93 Difference]: Finished difference Result 5179 states and 6453 transitions. [2022-11-03 02:33:32,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-11-03 02:33:32,606 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 02:33:32,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:32,609 INFO L225 Difference]: With dead ends: 5179 [2022-11-03 02:33:32,609 INFO L226 Difference]: Without dead ends: 3780 [2022-11-03 02:33:32,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1344 GetRequests, 1228 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3062 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=2669, Invalid=11137, Unknown=0, NotChecked=0, Total=13806 [2022-11-03 02:33:32,611 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 9254 mSDsluCounter, 18057 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9254 SdHoareTripleChecker+Valid, 18733 SdHoareTripleChecker+Invalid, 7253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3776 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:32,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9254 Valid, 18733 Invalid, 7253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 3079 Invalid, 0 Unknown, 3776 Unchecked, 3.6s Time] [2022-11-03 02:33:32,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2022-11-03 02:33:32,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 1523. [2022-11-03 02:33:32,870 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 02:33:32,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 1874 transitions. [2022-11-03 02:33:32,872 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 1874 transitions. Word has length 373 [2022-11-03 02:33:32,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:32,873 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 1874 transitions. [2022-11-03 02:33:32,873 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 02:33:32,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 1874 transitions. [2022-11-03 02:33:32,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:33:32,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:32,877 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 02:33:32,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Forceful destruction successful, exit code 0 [2022-11-03 02:33:33,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (147)] Ended with exit code 0 [2022-11-03 02:33:33,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (148)] Forceful destruction successful, exit code 0 [2022-11-03 02:33:33,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 149 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,147 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,148 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:33:33,505 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:33:33,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:33,506 INFO L85 PathProgramCache]: Analyzing trace with hash -428972010, now seen corresponding path program 1 times [2022-11-03 02:33:33,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:33:33,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285703640] [2022-11-03 02:33:33,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:33,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:33:33,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:33:33,508 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:33:33,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (150)] Waiting until timeout for monitored process [2022-11-03 02:33:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:34,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:33:34,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:36,932 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 02:33:36,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:37,056 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:33:37,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285703640] [2022-11-03 02:33:37,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285703640] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:37,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1398730525] [2022-11-03 02:33:37,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:37,057 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:33:37,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:33:37,058 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:33:37,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (151)] Waiting until timeout for monitored process [2022-11-03 02:33:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:38,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:33:38,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:41,435 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 02:33:41,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:41,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1398730525] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:41,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912285756] [2022-11-03 02:33:41,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:41,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:41,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:41,491 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:33:41,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Waiting until timeout for monitored process [2022-11-03 02:33:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:42,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:33:42,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:45,410 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 02:33:45,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:45,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912285756] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:45,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:33:45,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 22 [2022-11-03 02:33:45,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192625612] [2022-11-03 02:33:45,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:33:45,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 02:33:45,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:33:45,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 02:33:45,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:33:45,648 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 02:33:51,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:51,128 INFO L93 Difference]: Finished difference Result 4089 states and 5048 transitions. [2022-11-03 02:33:51,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-03 02:33:51,129 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 02:33:51,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:51,131 INFO L225 Difference]: With dead ends: 4089 [2022-11-03 02:33:51,131 INFO L226 Difference]: Without dead ends: 2694 [2022-11-03 02:33:51,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1296 GetRequests, 1227 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1016 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1159, Invalid=3811, Unknown=0, NotChecked=0, Total=4970 [2022-11-03 02:33:51,133 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 6110 mSDsluCounter, 6594 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:51,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6110 Valid, 7081 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1092 Invalid, 0 Unknown, 1295 Unchecked, 1.5s Time] [2022-11-03 02:33:51,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-11-03 02:33:51,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1523. [2022-11-03 02:33:51,423 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 02:33:51,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 1874 transitions. [2022-11-03 02:33:51,425 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 1874 transitions. Word has length 373 [2022-11-03 02:33:51,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:51,425 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 1874 transitions. [2022-11-03 02:33:51,425 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 02:33:51,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 1874 transitions. [2022-11-03 02:33:51,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:33:51,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:51,428 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 02:33:51,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (151)] Forceful destruction successful, exit code 0 [2022-11-03 02:33:51,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Ended with exit code 0 [2022-11-03 02:33:51,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (150)] Ended with exit code 0 [2022-11-03 02:33:52,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 151 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,152 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,150 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:33:52,029 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:33:52,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:52,029 INFO L85 PathProgramCache]: Analyzing trace with hash -821999020, now seen corresponding path program 1 times [2022-11-03 02:33:52,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:33:52,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556092178] [2022-11-03 02:33:52,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:52,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:33:52,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:33:52,031 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:33:52,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (153)] Waiting until timeout for monitored process [2022-11-03 02:33:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:52,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 02:33:52,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:56,542 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 02:33:56,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:56,653 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:33:56,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556092178] [2022-11-03 02:33:56,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556092178] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:56,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [893790167] [2022-11-03 02:33:56,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:56,654 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:33:56,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:33:56,655 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:33:56,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (154)] Waiting until timeout for monitored process [2022-11-03 02:33:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:58,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 02:33:58,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 8 proven. 231 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:34:01,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:01,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [893790167] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:01,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817695140] [2022-11-03 02:34:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:01,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:01,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:34:01,426 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:34:01,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (155)] Waiting until timeout for monitored process [2022-11-03 02:34:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:02,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:34:02,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:03,739 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 8 proven. 82 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-03 02:34:03,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:04,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817695140] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:04,003 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:34:04,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 14, 9] total 36 [2022-11-03 02:34:04,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489967539] [2022-11-03 02:34:04,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:34:04,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-03 02:34:04,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:34:04,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-03 02:34:04,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1405, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:34:04,005 INFO L87 Difference]: Start difference. First operand 1523 states and 1874 transitions. Second operand has 36 states, 35 states have (on average 19.8) internal successors, (693), 36 states have internal predecessors, (693), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2022-11-03 02:34:19,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:19,265 INFO L93 Difference]: Finished difference Result 5481 states and 6687 transitions. [2022-11-03 02:34:19,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-11-03 02:34:19,266 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 19.8) internal successors, (693), 36 states have internal predecessors, (693), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 373 [2022-11-03 02:34:19,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:19,268 INFO L225 Difference]: With dead ends: 5481 [2022-11-03 02:34:19,268 INFO L226 Difference]: Without dead ends: 4088 [2022-11-03 02:34:19,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1340 GetRequests, 1213 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4440 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=2736, Invalid=13266, Unknown=0, NotChecked=0, Total=16002 [2022-11-03 02:34:19,270 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 9811 mSDsluCounter, 11486 mSDsCounter, 0 mSdLazyCounter, 3111 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9811 SdHoareTripleChecker+Valid, 11917 SdHoareTripleChecker+Invalid, 5645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 3111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1991 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:19,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9811 Valid, 11917 Invalid, 5645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 3111 Invalid, 0 Unknown, 1991 Unchecked, 3.6s Time] [2022-11-03 02:34:19,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2022-11-03 02:34:19,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 1715. [2022-11-03 02:34:19,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1677 states have (on average 1.2057245080500893) internal successors, (2022), 1677 states have internal predecessors, (2022), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-11-03 02:34:19,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2094 transitions. [2022-11-03 02:34:19,642 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2094 transitions. Word has length 373 [2022-11-03 02:34:19,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:19,642 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2094 transitions. [2022-11-03 02:34:19,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 19.8) internal successors, (693), 36 states have internal predecessors, (693), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2022-11-03 02:34:19,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2094 transitions. [2022-11-03 02:34:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:34:19,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:19,646 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, 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] [2022-11-03 02:34:19,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (154)] Ended with exit code 0 [2022-11-03 02:34:19,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (153)] Forceful destruction successful, exit code 0 [2022-11-03 02:34:20,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (155)] Ended with exit code 0 [2022-11-03 02:34:20,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 154 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,153 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,155 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:20,247 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:34:20,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:20,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1631345646, now seen corresponding path program 1 times [2022-11-03 02:34:20,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:34:20,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603349911] [2022-11-03 02:34:20,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:20,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:34:20,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:34:20,250 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:34:20,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (156)] Waiting until timeout for monitored process [2022-11-03 02:34:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:21,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 02:34:21,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-03 02:34:22,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:22,903 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:34:22,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603349911] [2022-11-03 02:34:22,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603349911] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:22,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1846433219] [2022-11-03 02:34:22,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:22,903 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:34:22,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:34:22,904 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:34:22,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (157)] Waiting until timeout for monitored process [2022-11-03 02:34:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:24,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-03 02:34:24,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:27,224 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 116 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-03 02:34:27,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:27,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1846433219] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:27,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587452845] [2022-11-03 02:34:27,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:27,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:27,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:34:27,746 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:34:27,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Waiting until timeout for monitored process [2022-11-03 02:34:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:28,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-03 02:34:28,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:30,272 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 116 proven. 7 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-11-03 02:34:30,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:30,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587452845] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:30,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:34:30,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 20] total 34 [2022-11-03 02:34:30,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728542745] [2022-11-03 02:34:30,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:34:30,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-03 02:34:30,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:34:30,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-03 02:34:30,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1417, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:34:30,802 INFO L87 Difference]: Start difference. First operand 1715 states and 2094 transitions. Second operand has 34 states, 34 states have (on average 14.0) internal successors, (476), 34 states have internal predecessors, (476), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 02:34:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:36,061 INFO L93 Difference]: Finished difference Result 3487 states and 4284 transitions. [2022-11-03 02:34:36,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-03 02:34:36,062 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 14.0) internal successors, (476), 34 states have internal predecessors, (476), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 373 [2022-11-03 02:34:36,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:36,065 INFO L225 Difference]: With dead ends: 3487 [2022-11-03 02:34:36,065 INFO L226 Difference]: Without dead ends: 3485 [2022-11-03 02:34:36,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1271 GetRequests, 1206 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=600, Invalid=3306, Unknown=0, NotChecked=0, Total=3906 [2022-11-03 02:34:36,067 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 976 mSDsluCounter, 9171 mSDsCounter, 0 mSdLazyCounter, 2115 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 9637 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 221 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:36,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 9637 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2115 Invalid, 0 Unknown, 221 Unchecked, 2.8s Time] [2022-11-03 02:34:36,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3485 states. [2022-11-03 02:34:36,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3485 to 2031. [2022-11-03 02:34:36,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 1981 states have (on average 1.209490156486623) internal successors, (2396), 1981 states have internal predecessors, (2396), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-11-03 02:34:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2492 transitions. [2022-11-03 02:34:36,565 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2492 transitions. Word has length 373 [2022-11-03 02:34:36,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:36,565 INFO L495 AbstractCegarLoop]: Abstraction has 2031 states and 2492 transitions. [2022-11-03 02:34:36,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 14.0) internal successors, (476), 34 states have internal predecessors, (476), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 02:34:36,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2492 transitions. [2022-11-03 02:34:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 02:34:36,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:36,569 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, 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] [2022-11-03 02:34:36,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (156)] Ended with exit code 0 [2022-11-03 02:34:36,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (157)] Ended with exit code 0 [2022-11-03 02:34:36,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Ended with exit code 0 [2022-11-03 02:34:37,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 156 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,157 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,158 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:37,170 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:34:37,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:37,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1574087344, now seen corresponding path program 2 times [2022-11-03 02:34:37,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:34:37,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722597574] [2022-11-03 02:34:37,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-03 02:34:37,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:34:37,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:34:37,173 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:34:37,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (159)] Waiting until timeout for monitored process [2022-11-03 02:34:38,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-03 02:34:38,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:34:38,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 02:34:38,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 23 proven. 240 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-03 02:34:42,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:49,168 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:34:49,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722597574] [2022-11-03 02:34:49,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722597574] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:49,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [266951823] [2022-11-03 02:34:49,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-03 02:34:49,168 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:34:49,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:34:49,169 INFO L229 MonitoredProcess]: Starting monitored process 160 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:34:49,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (160)] Waiting until timeout for monitored process [2022-11-03 02:34:50,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-03 02:34:50,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:34:51,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 02:34:51,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 8 proven. 231 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 02:34:55,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:35:00,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [266951823] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:35:00,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712246812] [2022-11-03 02:35:00,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-03 02:35:00,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:00,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:00,387 INFO L229 MonitoredProcess]: Starting monitored process 161 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:35:00,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1c29715-10e9-446e-b05e-d51ea1be0627/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (161)] Waiting until timeout for monitored process [2022-11-03 02:35:01,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-03 02:35:01,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:35:01,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 159 conjunts are in the unsatisfiable core [2022-11-03 02:35:01,200 INFO L286 TraceCheckSpWp]: Computing forward predicates...