/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 01:11:25,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 01:11:25,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 01:11:25,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 01:11:25,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 01:11:25,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 01:11:25,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 01:11:25,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-09 01:11:25,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 01:11:25,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 01:11:25,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 01:11:25,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 01:11:25,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 01:11:25,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 01:11:25,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 01:11:25,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 01:11:25,986 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 01:11:25,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 01:11:25,986 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 01:11:25,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 01:11:25,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 01:11:25,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 01:11:25,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 01:11:25,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 01:11:25,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 01:11:25,987 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 01:11:25,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 01:11:25,987 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 01:11:25,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 01:11:25,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 01:11:25,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 01:11:25,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 01:11:25,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 01:11:25,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 01:11:25,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 01:11:25,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 01:11:25,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 01:11:25,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 01:11:25,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 01:11:25,989 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 01:11:25,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 01:11:25,989 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 01:11:26,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 01:11:26,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 01:11:26,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 01:11:26,236 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 01:11:26,237 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 01:11:26,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2022-02-09 01:11:26,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1dd5792/7f3d5046a71a41d7a23a67c011124489/FLAG9c888ee65 [2022-02-09 01:11:26,699 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 01:11:26,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2022-02-09 01:11:26,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1dd5792/7f3d5046a71a41d7a23a67c011124489/FLAG9c888ee65 [2022-02-09 01:11:27,130 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1dd5792/7f3d5046a71a41d7a23a67c011124489 [2022-02-09 01:11:27,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 01:11:27,134 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 01:11:27,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 01:11:27,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 01:11:27,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 01:11:27,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c2e3732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27, skipping insertion in model container [2022-02-09 01:11:27,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 01:11:27,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 01:11:27,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-02-09 01:11:27,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 01:11:27,344 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 01:11:27,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-02-09 01:11:27,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 01:11:27,376 INFO L208 MainTranslator]: Completed translation [2022-02-09 01:11:27,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27 WrapperNode [2022-02-09 01:11:27,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 01:11:27,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 01:11:27,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 01:11:27,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 01:11:27,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,430 INFO L137 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 117 [2022-02-09 01:11:27,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 01:11:27,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 01:11:27,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 01:11:27,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 01:11:27,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 01:11:27,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 01:11:27,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 01:11:27,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 01:11:27,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27" (1/1) ... [2022-02-09 01:11:27,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 01:11:27,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 01:11:27,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 01:11:27,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 01:11:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 01:11:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 01:11:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 01:11:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 01:11:27,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 01:11:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 01:11:27,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 01:11:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-09 01:11:27,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-09 01:11:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 01:11:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 01:11:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 01:11:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-09 01:11:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-09 01:11:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 01:11:27,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 01:11:27,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 01:11:27,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 01:11:27,561 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 01:11:27,633 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 01:11:27,634 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 01:11:27,817 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 01:11:27,864 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 01:11:27,865 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-09 01:11:27,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 01:11:27 BoogieIcfgContainer [2022-02-09 01:11:27,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 01:11:27,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 01:11:27,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 01:11:27,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 01:11:27,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 01:11:27" (1/3) ... [2022-02-09 01:11:27,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf5ae82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 01:11:27, skipping insertion in model container [2022-02-09 01:11:27,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 01:11:27" (2/3) ... [2022-02-09 01:11:27,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf5ae82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 01:11:27, skipping insertion in model container [2022-02-09 01:11:27,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 01:11:27" (3/3) ... [2022-02-09 01:11:27,874 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2022-02-09 01:11:27,878 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 01:11:27,879 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 01:11:27,879 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 01:11:27,879 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 01:11:27,953 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,953 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,954 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,954 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,955 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,956 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,957 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,958 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,958 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,959 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,959 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,959 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,959 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,960 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,960 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,960 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,963 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,963 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,963 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,963 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,964 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,964 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,964 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,964 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,965 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,965 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,965 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,965 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,965 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,966 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,966 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,966 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,967 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,967 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,968 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,968 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,968 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,969 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,969 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,969 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,969 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,970 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,970 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,970 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,970 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,970 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,970 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,971 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,971 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,971 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,972 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,972 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,972 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,973 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,973 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,974 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,974 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,974 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,974 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,975 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,975 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,975 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,976 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,976 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,976 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,977 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,977 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,977 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,977 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,978 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,978 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,978 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,978 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,983 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,983 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,983 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,984 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,984 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,985 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,985 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,985 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,986 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,986 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,986 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,986 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,986 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:27,987 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 01:11:28,004 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-09 01:11:28,045 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 01:11:28,051 INFO L339 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, mLazyFiniteAutomaton=false, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 01:11:28,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-09 01:11:28,063 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 133 transitions, 298 flow [2022-02-09 01:11:29,603 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33659 states, 33658 states have (on average 4.971180699982174) internal successors, (167320), 33658 states have internal predecessors, (167320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:29,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 33659 states, 33658 states have (on average 4.971180699982174) internal successors, (167320), 33658 states have internal predecessors, (167320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:29,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-09 01:11:29,983 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:11:29,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:11:29,985 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:11:29,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:11:29,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1708599078, now seen corresponding path program 1 times [2022-02-09 01:11:30,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:11:30,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17728172] [2022-02-09 01:11:30,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:11:30,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:11:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:11:30,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:11:30,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:11:30,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17728172] [2022-02-09 01:11:30,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17728172] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:11:30,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:11:30,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 01:11:30,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745292265] [2022-02-09 01:11:30,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:11:30,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 01:11:30,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:11:30,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 01:11:30,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 01:11:30,440 INFO L87 Difference]: Start difference. First operand has 33659 states, 33658 states have (on average 4.971180699982174) internal successors, (167320), 33658 states have internal predecessors, (167320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:31,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:11:31,093 INFO L93 Difference]: Finished difference Result 33659 states and 153296 transitions. [2022-02-09 01:11:31,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 01:11:31,096 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-02-09 01:11:31,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:11:31,546 INFO L225 Difference]: With dead ends: 33659 [2022-02-09 01:11:31,547 INFO L226 Difference]: Without dead ends: 33657 [2022-02-09 01:11:31,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 01:11:31,552 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 01:11:31,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 01:11:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33657 states. [2022-02-09 01:11:33,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33657 to 33657. [2022-02-09 01:11:33,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33657 states, 33656 states have (on average 4.554730211552175) internal successors, (153294), 33656 states have internal predecessors, (153294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:33,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33657 states to 33657 states and 153294 transitions. [2022-02-09 01:11:33,896 INFO L78 Accepts]: Start accepts. Automaton has 33657 states and 153294 transitions. Word has length 88 [2022-02-09 01:11:33,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:11:33,897 INFO L470 AbstractCegarLoop]: Abstraction has 33657 states and 153294 transitions. [2022-02-09 01:11:33,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:33,898 INFO L276 IsEmpty]: Start isEmpty. Operand 33657 states and 153294 transitions. [2022-02-09 01:11:34,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-09 01:11:34,077 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:11:34,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:11:34,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 01:11:34,078 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:11:34,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:11:34,079 INFO L85 PathProgramCache]: Analyzing trace with hash 560306940, now seen corresponding path program 1 times [2022-02-09 01:11:34,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:11:34,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113055184] [2022-02-09 01:11:34,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:11:34,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:11:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:11:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:11:34,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:11:34,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113055184] [2022-02-09 01:11:34,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113055184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:11:34,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:11:34,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 01:11:34,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997700057] [2022-02-09 01:11:34,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:11:34,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 01:11:34,352 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:11:34,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 01:11:34,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:11:34,353 INFO L87 Difference]: Start difference. First operand 33657 states and 153294 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:34,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:11:34,910 INFO L93 Difference]: Finished difference Result 40731 states and 182634 transitions. [2022-02-09 01:11:34,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 01:11:34,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-02-09 01:11:34,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:11:35,492 INFO L225 Difference]: With dead ends: 40731 [2022-02-09 01:11:35,493 INFO L226 Difference]: Without dead ends: 38709 [2022-02-09 01:11:35,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-09 01:11:35,494 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 8 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:11:35,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 347 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:11:35,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38709 states. [2022-02-09 01:11:37,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38709 to 38277. [2022-02-09 01:11:37,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38277 states, 38276 states have (on average 4.508229700073153) internal successors, (172557), 38276 states have internal predecessors, (172557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:37,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38277 states to 38277 states and 172557 transitions. [2022-02-09 01:11:37,574 INFO L78 Accepts]: Start accepts. Automaton has 38277 states and 172557 transitions. Word has length 88 [2022-02-09 01:11:37,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:11:37,579 INFO L470 AbstractCegarLoop]: Abstraction has 38277 states and 172557 transitions. [2022-02-09 01:11:37,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:37,587 INFO L276 IsEmpty]: Start isEmpty. Operand 38277 states and 172557 transitions. [2022-02-09 01:11:37,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-09 01:11:37,707 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:11:37,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:11:37,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 01:11:37,708 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:11:37,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:11:37,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1145915436, now seen corresponding path program 1 times [2022-02-09 01:11:37,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:11:37,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503467576] [2022-02-09 01:11:37,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:11:37,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:11:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:11:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:11:37,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:11:37,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503467576] [2022-02-09 01:11:37,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503467576] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:11:37,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:11:37,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 01:11:37,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378373016] [2022-02-09 01:11:37,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:11:37,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 01:11:37,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:11:37,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 01:11:37,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:11:37,904 INFO L87 Difference]: Start difference. First operand 38277 states and 172557 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:38,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:11:38,980 INFO L93 Difference]: Finished difference Result 63219 states and 280029 transitions. [2022-02-09 01:11:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 01:11:38,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-02-09 01:11:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:11:39,411 INFO L225 Difference]: With dead ends: 63219 [2022-02-09 01:11:39,411 INFO L226 Difference]: Without dead ends: 61095 [2022-02-09 01:11:39,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-09 01:11:39,413 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 136 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:11:39,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 556 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:11:39,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61095 states. [2022-02-09 01:11:41,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61095 to 50217. [2022-02-09 01:11:41,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50217 states, 50216 states have (on average 4.463278636291222) internal successors, (224128), 50216 states have internal predecessors, (224128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50217 states to 50217 states and 224128 transitions. [2022-02-09 01:11:41,877 INFO L78 Accepts]: Start accepts. Automaton has 50217 states and 224128 transitions. Word has length 93 [2022-02-09 01:11:41,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:11:41,877 INFO L470 AbstractCegarLoop]: Abstraction has 50217 states and 224128 transitions. [2022-02-09 01:11:41,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:41,878 INFO L276 IsEmpty]: Start isEmpty. Operand 50217 states and 224128 transitions. [2022-02-09 01:11:42,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-09 01:11:42,397 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:11:42,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:11:42,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-09 01:11:42,405 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:11:42,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:11:42,406 INFO L85 PathProgramCache]: Analyzing trace with hash -697904180, now seen corresponding path program 1 times [2022-02-09 01:11:42,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:11:42,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936295842] [2022-02-09 01:11:42,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:11:42,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:11:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:11:42,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:11:42,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:11:42,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936295842] [2022-02-09 01:11:42,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936295842] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:11:42,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:11:42,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 01:11:42,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261267798] [2022-02-09 01:11:42,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:11:42,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 01:11:42,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:11:42,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 01:11:42,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 01:11:42,507 INFO L87 Difference]: Start difference. First operand 50217 states and 224128 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:43,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:11:43,538 INFO L93 Difference]: Finished difference Result 71756 states and 319699 transitions. [2022-02-09 01:11:43,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 01:11:43,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-02-09 01:11:43,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:11:44,153 INFO L225 Difference]: With dead ends: 71756 [2022-02-09 01:11:44,153 INFO L226 Difference]: Without dead ends: 69278 [2022-02-09 01:11:44,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 01:11:44,166 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 110 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:11:44,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 329 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:11:44,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69278 states. [2022-02-09 01:11:46,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69278 to 53251. [2022-02-09 01:11:46,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53251 states, 53250 states have (on average 4.474985915492958) internal successors, (238293), 53250 states have internal predecessors, (238293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:47,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53251 states to 53251 states and 238293 transitions. [2022-02-09 01:11:47,002 INFO L78 Accepts]: Start accepts. Automaton has 53251 states and 238293 transitions. Word has length 93 [2022-02-09 01:11:47,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:11:47,003 INFO L470 AbstractCegarLoop]: Abstraction has 53251 states and 238293 transitions. [2022-02-09 01:11:47,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 53251 states and 238293 transitions. [2022-02-09 01:11:47,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-09 01:11:47,578 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:11:47,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:11:47,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-09 01:11:47,579 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:11:47,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:11:47,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1068497080, now seen corresponding path program 2 times [2022-02-09 01:11:47,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:11:47,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944979777] [2022-02-09 01:11:47,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:11:47,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:11:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:11:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:11:47,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:11:47,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944979777] [2022-02-09 01:11:47,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944979777] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:11:47,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:11:47,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 01:11:47,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361989564] [2022-02-09 01:11:47,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:11:47,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 01:11:47,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:11:47,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 01:11:47,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 01:11:47,707 INFO L87 Difference]: Start difference. First operand 53251 states and 238293 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:48,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:11:48,876 INFO L93 Difference]: Finished difference Result 89701 states and 395838 transitions. [2022-02-09 01:11:48,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 01:11:48,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-02-09 01:11:48,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:11:49,377 INFO L225 Difference]: With dead ends: 89701 [2022-02-09 01:11:49,378 INFO L226 Difference]: Without dead ends: 88765 [2022-02-09 01:11:49,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:11:49,382 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 133 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:11:49,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 372 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:11:49,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88765 states. [2022-02-09 01:11:52,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88765 to 63121. [2022-02-09 01:11:52,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63121 states, 63120 states have (on average 4.501489226869455) internal successors, (284134), 63120 states have internal predecessors, (284134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:52,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63121 states to 63121 states and 284134 transitions. [2022-02-09 01:11:52,985 INFO L78 Accepts]: Start accepts. Automaton has 63121 states and 284134 transitions. Word has length 93 [2022-02-09 01:11:52,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:11:52,985 INFO L470 AbstractCegarLoop]: Abstraction has 63121 states and 284134 transitions. [2022-02-09 01:11:52,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:52,985 INFO L276 IsEmpty]: Start isEmpty. Operand 63121 states and 284134 transitions. [2022-02-09 01:11:53,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-09 01:11:53,197 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:11:53,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:11:53,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 01:11:53,197 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:11:53,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:11:53,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1833939858, now seen corresponding path program 3 times [2022-02-09 01:11:53,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:11:53,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213842489] [2022-02-09 01:11:53,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:11:53,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:11:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:11:53,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:11:53,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:11:53,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213842489] [2022-02-09 01:11:53,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213842489] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:11:53,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:11:53,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 01:11:53,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912403346] [2022-02-09 01:11:53,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:11:53,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 01:11:53,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:11:53,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 01:11:53,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 01:11:53,278 INFO L87 Difference]: Start difference. First operand 63121 states and 284134 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:54,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:11:54,389 INFO L93 Difference]: Finished difference Result 76706 states and 343340 transitions. [2022-02-09 01:11:54,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 01:11:54,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-02-09 01:11:54,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:11:55,271 INFO L225 Difference]: With dead ends: 76706 [2022-02-09 01:11:55,271 INFO L226 Difference]: Without dead ends: 75467 [2022-02-09 01:11:55,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 01:11:55,272 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 103 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 01:11:55,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 289 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 01:11:55,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75467 states. [2022-02-09 01:11:57,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75467 to 51516. [2022-02-09 01:11:57,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51516 states, 51515 states have (on average 4.475511986799961) internal successors, (230556), 51515 states have internal predecessors, (230556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:57,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51516 states to 51516 states and 230556 transitions. [2022-02-09 01:11:57,903 INFO L78 Accepts]: Start accepts. Automaton has 51516 states and 230556 transitions. Word has length 93 [2022-02-09 01:11:57,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:11:57,906 INFO L470 AbstractCegarLoop]: Abstraction has 51516 states and 230556 transitions. [2022-02-09 01:11:57,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:57,906 INFO L276 IsEmpty]: Start isEmpty. Operand 51516 states and 230556 transitions. [2022-02-09 01:11:58,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:11:58,088 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:11:58,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:11:58,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-09 01:11:58,089 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:11:58,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:11:58,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2054734952, now seen corresponding path program 1 times [2022-02-09 01:11:58,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:11:58,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559888929] [2022-02-09 01:11:58,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:11:58,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:11:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:11:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:11:58,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:11:58,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559888929] [2022-02-09 01:11:58,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559888929] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 01:11:58,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071122135] [2022-02-09 01:11:58,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:11:58,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 01:11:58,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 01:11:58,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 01:11:58,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-09 01:11:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:11:58,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-09 01:11:58,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 01:11:58,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:11:58,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 01:11:58,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:11:58,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071122135] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-09 01:11:58,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-09 01:11:58,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 7 [2022-02-09 01:11:58,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112286512] [2022-02-09 01:11:58,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:11:58,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 01:11:58,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:11:58,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 01:11:58,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-02-09 01:11:58,908 INFO L87 Difference]: Start difference. First operand 51516 states and 230556 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:11:59,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:11:59,788 INFO L93 Difference]: Finished difference Result 55339 states and 247957 transitions. [2022-02-09 01:11:59,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 01:11:59,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:11:59,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:12:00,140 INFO L225 Difference]: With dead ends: 55339 [2022-02-09 01:12:00,141 INFO L226 Difference]: Without dead ends: 55339 [2022-02-09 01:12:00,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-02-09 01:12:00,142 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 95 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:12:00,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 258 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:12:00,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55339 states. [2022-02-09 01:12:01,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55339 to 55339. [2022-02-09 01:12:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55339 states, 55338 states have (on average 4.480772705916369) internal successors, (247957), 55338 states have internal predecessors, (247957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:02,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55339 states to 55339 states and 247957 transitions. [2022-02-09 01:12:02,544 INFO L78 Accepts]: Start accepts. Automaton has 55339 states and 247957 transitions. Word has length 98 [2022-02-09 01:12:02,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:12:02,545 INFO L470 AbstractCegarLoop]: Abstraction has 55339 states and 247957 transitions. [2022-02-09 01:12:02,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:02,545 INFO L276 IsEmpty]: Start isEmpty. Operand 55339 states and 247957 transitions. [2022-02-09 01:12:02,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:12:02,727 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:12:02,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:12:02,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-09 01:12:02,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 01:12:02,928 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:12:02,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:12:02,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1162914164, now seen corresponding path program 1 times [2022-02-09 01:12:02,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:12:02,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295204836] [2022-02-09 01:12:02,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:12:02,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:12:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:12:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:12:03,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:12:03,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295204836] [2022-02-09 01:12:03,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295204836] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:12:03,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:12:03,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 01:12:03,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810228983] [2022-02-09 01:12:03,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:12:03,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 01:12:03,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:12:03,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 01:12:03,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:12:03,054 INFO L87 Difference]: Start difference. First operand 55339 states and 247957 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:04,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:12:04,303 INFO L93 Difference]: Finished difference Result 85069 states and 383068 transitions. [2022-02-09 01:12:04,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 01:12:04,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:12:04,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:12:05,155 INFO L225 Difference]: With dead ends: 85069 [2022-02-09 01:12:05,156 INFO L226 Difference]: Without dead ends: 85069 [2022-02-09 01:12:05,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:12:05,160 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 119 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:12:05,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 447 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:12:05,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85069 states. [2022-02-09 01:12:07,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85069 to 62530. [2022-02-09 01:12:07,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62530 states, 62529 states have (on average 4.458203393625358) internal successors, (278767), 62529 states have internal predecessors, (278767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:08,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62530 states to 62530 states and 278767 transitions. [2022-02-09 01:12:08,528 INFO L78 Accepts]: Start accepts. Automaton has 62530 states and 278767 transitions. Word has length 98 [2022-02-09 01:12:08,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:12:08,529 INFO L470 AbstractCegarLoop]: Abstraction has 62530 states and 278767 transitions. [2022-02-09 01:12:08,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:08,530 INFO L276 IsEmpty]: Start isEmpty. Operand 62530 states and 278767 transitions. [2022-02-09 01:12:08,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:12:08,925 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:12:08,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:12:08,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-09 01:12:08,925 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:12:08,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:12:08,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1146094196, now seen corresponding path program 2 times [2022-02-09 01:12:08,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:12:08,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731162179] [2022-02-09 01:12:08,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:12:08,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:12:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:12:09,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:12:09,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:12:09,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731162179] [2022-02-09 01:12:09,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731162179] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:12:09,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:12:09,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 01:12:09,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734846494] [2022-02-09 01:12:09,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:12:09,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 01:12:09,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:12:09,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 01:12:09,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:12:09,202 INFO L87 Difference]: Start difference. First operand 62530 states and 278767 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:10,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:12:10,832 INFO L93 Difference]: Finished difference Result 88758 states and 398107 transitions. [2022-02-09 01:12:10,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 01:12:10,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:12:10,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:12:12,506 INFO L225 Difference]: With dead ends: 88758 [2022-02-09 01:12:12,506 INFO L226 Difference]: Without dead ends: 88758 [2022-02-09 01:12:12,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:12:12,507 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 159 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 01:12:12,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 796 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 01:12:12,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88758 states. [2022-02-09 01:12:15,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88758 to 65588. [2022-02-09 01:12:15,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65588 states, 65587 states have (on average 4.465122661503042) internal successors, (292854), 65587 states have internal predecessors, (292854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65588 states to 65588 states and 292854 transitions. [2022-02-09 01:12:16,416 INFO L78 Accepts]: Start accepts. Automaton has 65588 states and 292854 transitions. Word has length 98 [2022-02-09 01:12:16,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:12:16,417 INFO L470 AbstractCegarLoop]: Abstraction has 65588 states and 292854 transitions. [2022-02-09 01:12:16,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:16,417 INFO L276 IsEmpty]: Start isEmpty. Operand 65588 states and 292854 transitions. [2022-02-09 01:12:16,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:12:16,690 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:12:16,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:12:16,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-09 01:12:16,691 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:12:16,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:12:16,692 INFO L85 PathProgramCache]: Analyzing trace with hash 776329516, now seen corresponding path program 2 times [2022-02-09 01:12:16,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:12:16,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968373522] [2022-02-09 01:12:16,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:12:16,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:12:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:12:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:12:16,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:12:16,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968373522] [2022-02-09 01:12:16,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968373522] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 01:12:16,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052491854] [2022-02-09 01:12:16,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 01:12:16,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 01:12:16,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 01:12:16,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 01:12:16,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 01:12:17,014 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 01:12:17,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 01:12:17,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 01:12:17,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 01:12:17,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:12:17,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-09 01:12:17,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052491854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:12:17,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-09 01:12:17,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-02-09 01:12:17,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918155058] [2022-02-09 01:12:17,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:12:17,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 01:12:17,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:12:17,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 01:12:17,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-02-09 01:12:17,239 INFO L87 Difference]: Start difference. First operand 65588 states and 292854 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:18,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:12:18,422 INFO L93 Difference]: Finished difference Result 87554 states and 392961 transitions. [2022-02-09 01:12:18,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 01:12:18,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:12:18,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:12:19,273 INFO L225 Difference]: With dead ends: 87554 [2022-02-09 01:12:19,273 INFO L226 Difference]: Without dead ends: 83213 [2022-02-09 01:12:19,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-02-09 01:12:19,274 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 98 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:12:19,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 316 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:12:19,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83213 states. [2022-02-09 01:12:21,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83213 to 59564. [2022-02-09 01:12:21,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59564 states, 59563 states have (on average 4.520759531924181) internal successors, (269270), 59563 states have internal predecessors, (269270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:22,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59564 states to 59564 states and 269270 transitions. [2022-02-09 01:12:22,215 INFO L78 Accepts]: Start accepts. Automaton has 59564 states and 269270 transitions. Word has length 98 [2022-02-09 01:12:22,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:12:22,215 INFO L470 AbstractCegarLoop]: Abstraction has 59564 states and 269270 transitions. [2022-02-09 01:12:22,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:22,216 INFO L276 IsEmpty]: Start isEmpty. Operand 59564 states and 269270 transitions. [2022-02-09 01:12:22,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:12:22,411 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:12:22,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:12:22,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-09 01:12:22,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-09 01:12:22,612 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:12:22,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:12:22,612 INFO L85 PathProgramCache]: Analyzing trace with hash -541598790, now seen corresponding path program 3 times [2022-02-09 01:12:22,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:12:22,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803228831] [2022-02-09 01:12:22,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:12:22,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:12:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:12:22,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:12:22,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:12:22,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803228831] [2022-02-09 01:12:22,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803228831] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:12:22,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:12:22,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 01:12:22,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073409247] [2022-02-09 01:12:22,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:12:22,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 01:12:22,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:12:22,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 01:12:22,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:12:22,689 INFO L87 Difference]: Start difference. First operand 59564 states and 269270 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:23,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:12:23,933 INFO L93 Difference]: Finished difference Result 93055 states and 418675 transitions. [2022-02-09 01:12:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 01:12:23,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:12:23,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:12:24,819 INFO L225 Difference]: With dead ends: 93055 [2022-02-09 01:12:24,819 INFO L226 Difference]: Without dead ends: 91375 [2022-02-09 01:12:24,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:12:24,820 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 114 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:12:24,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 368 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:12:24,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91375 states. [2022-02-09 01:12:27,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91375 to 64496. [2022-02-09 01:12:27,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64496 states, 64495 states have (on average 4.511869137142414) internal successors, (290993), 64495 states have internal predecessors, (290993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:27,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64496 states to 64496 states and 290993 transitions. [2022-02-09 01:12:27,899 INFO L78 Accepts]: Start accepts. Automaton has 64496 states and 290993 transitions. Word has length 98 [2022-02-09 01:12:27,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:12:27,899 INFO L470 AbstractCegarLoop]: Abstraction has 64496 states and 290993 transitions. [2022-02-09 01:12:27,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 64496 states and 290993 transitions. [2022-02-09 01:12:28,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:12:28,160 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:12:28,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:12:28,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-09 01:12:28,160 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:12:28,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:12:28,161 INFO L85 PathProgramCache]: Analyzing trace with hash 696832420, now seen corresponding path program 4 times [2022-02-09 01:12:28,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:12:28,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906008758] [2022-02-09 01:12:28,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:12:28,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:12:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:12:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:12:28,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:12:28,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906008758] [2022-02-09 01:12:28,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906008758] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:12:28,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:12:28,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 01:12:28,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517112192] [2022-02-09 01:12:28,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:12:28,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 01:12:28,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:12:28,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 01:12:28,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:12:28,252 INFO L87 Difference]: Start difference. First operand 64496 states and 290993 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:30,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:12:30,026 INFO L93 Difference]: Finished difference Result 104843 states and 472926 transitions. [2022-02-09 01:12:30,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 01:12:30,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:12:30,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:12:30,722 INFO L225 Difference]: With dead ends: 104843 [2022-02-09 01:12:30,722 INFO L226 Difference]: Without dead ends: 104843 [2022-02-09 01:12:30,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:12:30,723 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 100 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:12:30,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 349 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:12:30,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104843 states. [2022-02-09 01:12:33,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104843 to 67278. [2022-02-09 01:12:33,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67278 states, 67277 states have (on average 4.5062948704609305) internal successors, (303170), 67277 states have internal predecessors, (303170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:34,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67278 states to 67278 states and 303170 transitions. [2022-02-09 01:12:34,439 INFO L78 Accepts]: Start accepts. Automaton has 67278 states and 303170 transitions. Word has length 98 [2022-02-09 01:12:34,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:12:34,439 INFO L470 AbstractCegarLoop]: Abstraction has 67278 states and 303170 transitions. [2022-02-09 01:12:34,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:34,439 INFO L276 IsEmpty]: Start isEmpty. Operand 67278 states and 303170 transitions. [2022-02-09 01:12:34,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:12:34,660 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:12:34,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:12:34,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-09 01:12:34,660 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:12:34,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:12:34,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1948353230, now seen corresponding path program 5 times [2022-02-09 01:12:34,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:12:34,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963073461] [2022-02-09 01:12:34,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:12:34,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:12:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:12:34,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:12:34,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:12:34,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963073461] [2022-02-09 01:12:34,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963073461] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:12:34,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:12:34,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 01:12:34,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723204767] [2022-02-09 01:12:34,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:12:34,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 01:12:34,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:12:34,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 01:12:34,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:12:34,776 INFO L87 Difference]: Start difference. First operand 67278 states and 303170 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:36,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:12:36,698 INFO L93 Difference]: Finished difference Result 139764 states and 628872 transitions. [2022-02-09 01:12:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 01:12:36,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:12:36,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:12:38,660 INFO L225 Difference]: With dead ends: 139764 [2022-02-09 01:12:38,660 INFO L226 Difference]: Without dead ends: 138402 [2022-02-09 01:12:38,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:12:38,661 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 166 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:12:38,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 616 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:12:39,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138402 states. [2022-02-09 01:12:42,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138402 to 64544. [2022-02-09 01:12:42,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64544 states, 64543 states have (on average 4.512789922997071) internal successors, (291269), 64543 states have internal predecessors, (291269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:43,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64544 states to 64544 states and 291269 transitions. [2022-02-09 01:12:43,331 INFO L78 Accepts]: Start accepts. Automaton has 64544 states and 291269 transitions. Word has length 98 [2022-02-09 01:12:43,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:12:43,331 INFO L470 AbstractCegarLoop]: Abstraction has 64544 states and 291269 transitions. [2022-02-09 01:12:43,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:43,331 INFO L276 IsEmpty]: Start isEmpty. Operand 64544 states and 291269 transitions. [2022-02-09 01:12:43,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:12:43,538 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:12:43,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:12:43,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-09 01:12:43,539 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:12:43,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:12:43,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1919919388, now seen corresponding path program 6 times [2022-02-09 01:12:43,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:12:43,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143942178] [2022-02-09 01:12:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:12:43,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:12:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:12:43,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:12:43,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:12:43,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143942178] [2022-02-09 01:12:43,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143942178] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:12:43,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:12:43,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 01:12:43,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236739870] [2022-02-09 01:12:43,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:12:43,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 01:12:43,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:12:43,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 01:12:43,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:12:43,601 INFO L87 Difference]: Start difference. First operand 64544 states and 291269 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:44,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:12:44,812 INFO L93 Difference]: Finished difference Result 92280 states and 418087 transitions. [2022-02-09 01:12:44,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 01:12:44,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:12:44,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:12:45,906 INFO L225 Difference]: With dead ends: 92280 [2022-02-09 01:12:45,907 INFO L226 Difference]: Without dead ends: 92136 [2022-02-09 01:12:45,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:12:45,907 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 78 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:12:45,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 520 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:12:46,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92136 states. [2022-02-09 01:12:48,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92136 to 64544. [2022-02-09 01:12:48,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64544 states, 64543 states have (on average 4.512046232744062) internal successors, (291221), 64543 states have internal predecessors, (291221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:48,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64544 states to 64544 states and 291221 transitions. [2022-02-09 01:12:48,963 INFO L78 Accepts]: Start accepts. Automaton has 64544 states and 291221 transitions. Word has length 98 [2022-02-09 01:12:48,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:12:48,963 INFO L470 AbstractCegarLoop]: Abstraction has 64544 states and 291221 transitions. [2022-02-09 01:12:48,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:48,964 INFO L276 IsEmpty]: Start isEmpty. Operand 64544 states and 291221 transitions. [2022-02-09 01:12:49,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:12:49,145 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:12:49,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:12:49,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-09 01:12:49,145 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:12:49,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:12:49,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1362461532, now seen corresponding path program 7 times [2022-02-09 01:12:49,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:12:49,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513443294] [2022-02-09 01:12:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:12:49,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:12:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:12:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:12:49,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:12:49,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513443294] [2022-02-09 01:12:49,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513443294] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:12:49,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:12:49,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 01:12:49,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560016961] [2022-02-09 01:12:49,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:12:49,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 01:12:49,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:12:49,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 01:12:49,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:12:49,216 INFO L87 Difference]: Start difference. First operand 64544 states and 291221 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:50,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:12:50,879 INFO L93 Difference]: Finished difference Result 98473 states and 437309 transitions. [2022-02-09 01:12:50,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 01:12:50,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:12:50,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:12:51,449 INFO L225 Difference]: With dead ends: 98473 [2022-02-09 01:12:51,450 INFO L226 Difference]: Without dead ends: 89791 [2022-02-09 01:12:51,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-09 01:12:51,450 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 146 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:12:51,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 523 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:12:51,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89791 states. [2022-02-09 01:12:53,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89791 to 66476. [2022-02-09 01:12:54,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66476 states, 66475 states have (on average 4.542474614516736) internal successors, (301961), 66475 states have internal predecessors, (301961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:54,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66476 states to 66476 states and 301961 transitions. [2022-02-09 01:12:54,421 INFO L78 Accepts]: Start accepts. Automaton has 66476 states and 301961 transitions. Word has length 98 [2022-02-09 01:12:54,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:12:54,422 INFO L470 AbstractCegarLoop]: Abstraction has 66476 states and 301961 transitions. [2022-02-09 01:12:54,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:54,422 INFO L276 IsEmpty]: Start isEmpty. Operand 66476 states and 301961 transitions. [2022-02-09 01:12:55,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:12:55,052 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:12:55,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:12:55,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-09 01:12:55,052 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:12:55,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:12:55,053 INFO L85 PathProgramCache]: Analyzing trace with hash -345364374, now seen corresponding path program 8 times [2022-02-09 01:12:55,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:12:55,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881315496] [2022-02-09 01:12:55,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:12:55,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:12:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:12:55,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:12:55,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:12:55,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881315496] [2022-02-09 01:12:55,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881315496] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:12:55,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:12:55,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 01:12:55,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961567850] [2022-02-09 01:12:55,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:12:55,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 01:12:55,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:12:55,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 01:12:55,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:12:55,124 INFO L87 Difference]: Start difference. First operand 66476 states and 301961 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:12:56,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:12:56,588 INFO L93 Difference]: Finished difference Result 130474 states and 595700 transitions. [2022-02-09 01:12:56,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 01:12:56,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:12:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:12:57,837 INFO L225 Difference]: With dead ends: 130474 [2022-02-09 01:12:57,837 INFO L226 Difference]: Without dead ends: 130474 [2022-02-09 01:12:57,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:12:57,838 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 118 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:12:57,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 344 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:12:58,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130474 states. [2022-02-09 01:13:01,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130474 to 69830. [2022-02-09 01:13:01,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69830 states, 69829 states have (on average 4.55353792836787) internal successors, (317969), 69829 states have internal predecessors, (317969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:01,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69830 states to 69830 states and 317969 transitions. [2022-02-09 01:13:01,990 INFO L78 Accepts]: Start accepts. Automaton has 69830 states and 317969 transitions. Word has length 98 [2022-02-09 01:13:01,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:13:01,990 INFO L470 AbstractCegarLoop]: Abstraction has 69830 states and 317969 transitions. [2022-02-09 01:13:01,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:01,991 INFO L276 IsEmpty]: Start isEmpty. Operand 69830 states and 317969 transitions. [2022-02-09 01:13:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:13:02,212 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:13:02,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:13:02,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-09 01:13:02,212 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:13:02,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:13:02,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1304417272, now seen corresponding path program 9 times [2022-02-09 01:13:02,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:13:02,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023170486] [2022-02-09 01:13:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:13:02,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:13:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:13:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:13:02,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:13:02,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023170486] [2022-02-09 01:13:02,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023170486] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:13:02,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:13:02,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 01:13:02,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502492820] [2022-02-09 01:13:02,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:13:02,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 01:13:02,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:13:02,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 01:13:02,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:13:02,299 INFO L87 Difference]: Start difference. First operand 69830 states and 317969 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:04,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:13:04,019 INFO L93 Difference]: Finished difference Result 132262 states and 598204 transitions. [2022-02-09 01:13:04,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 01:13:04,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:13:04,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:13:05,263 INFO L225 Difference]: With dead ends: 132262 [2022-02-09 01:13:05,263 INFO L226 Difference]: Without dead ends: 130228 [2022-02-09 01:13:05,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:13:05,264 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 193 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:13:05,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 394 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:13:05,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130228 states. [2022-02-09 01:13:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130228 to 66349. [2022-02-09 01:13:09,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66349 states, 66348 states have (on average 4.54179477904383) internal successors, (301339), 66348 states have internal predecessors, (301339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:09,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66349 states to 66349 states and 301339 transitions. [2022-02-09 01:13:09,560 INFO L78 Accepts]: Start accepts. Automaton has 66349 states and 301339 transitions. Word has length 98 [2022-02-09 01:13:09,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:13:09,560 INFO L470 AbstractCegarLoop]: Abstraction has 66349 states and 301339 transitions. [2022-02-09 01:13:09,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:09,560 INFO L276 IsEmpty]: Start isEmpty. Operand 66349 states and 301339 transitions. [2022-02-09 01:13:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:13:10,445 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:13:10,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:13:10,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-09 01:13:10,445 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:13:10,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:13:10,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1332851114, now seen corresponding path program 10 times [2022-02-09 01:13:10,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:13:10,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527109553] [2022-02-09 01:13:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:13:10,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:13:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:13:10,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:13:10,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:13:10,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527109553] [2022-02-09 01:13:10,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527109553] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:13:10,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:13:10,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 01:13:10,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77040957] [2022-02-09 01:13:10,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:13:10,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 01:13:10,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:13:10,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 01:13:10,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:13:10,556 INFO L87 Difference]: Start difference. First operand 66349 states and 301339 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:11,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:13:11,988 INFO L93 Difference]: Finished difference Result 118447 states and 535789 transitions. [2022-02-09 01:13:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 01:13:11,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:13:11,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:13:13,065 INFO L225 Difference]: With dead ends: 118447 [2022-02-09 01:13:13,066 INFO L226 Difference]: Without dead ends: 118399 [2022-02-09 01:13:13,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:13:13,066 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 95 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:13:13,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 499 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:13:13,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118399 states. [2022-02-09 01:13:15,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118399 to 66333. [2022-02-09 01:13:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66333 states, 66332 states have (on average 4.5415033468009405) internal successors, (301247), 66332 states have internal predecessors, (301247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:16,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66333 states to 66333 states and 301247 transitions. [2022-02-09 01:13:16,807 INFO L78 Accepts]: Start accepts. Automaton has 66333 states and 301247 transitions. Word has length 98 [2022-02-09 01:13:16,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:13:16,808 INFO L470 AbstractCegarLoop]: Abstraction has 66333 states and 301247 transitions. [2022-02-09 01:13:16,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:16,808 INFO L276 IsEmpty]: Start isEmpty. Operand 66333 states and 301247 transitions. [2022-02-09 01:13:17,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-09 01:13:17,102 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:13:17,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:13:17,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-09 01:13:17,102 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:13:17,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:13:17,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1983847338, now seen corresponding path program 11 times [2022-02-09 01:13:17,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:13:17,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824907818] [2022-02-09 01:13:17,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:13:17,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:13:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:13:17,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:13:17,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:13:17,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824907818] [2022-02-09 01:13:17,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824907818] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:13:17,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:13:17,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 01:13:17,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126655718] [2022-02-09 01:13:17,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:13:17,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 01:13:17,164 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:13:17,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 01:13:17,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 01:13:17,165 INFO L87 Difference]: Start difference. First operand 66333 states and 301247 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:18,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:13:18,241 INFO L93 Difference]: Finished difference Result 84699 states and 386649 transitions. [2022-02-09 01:13:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 01:13:18,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-02-09 01:13:18,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:13:18,724 INFO L225 Difference]: With dead ends: 84699 [2022-02-09 01:13:18,724 INFO L226 Difference]: Without dead ends: 84603 [2022-02-09 01:13:18,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-09 01:13:18,725 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 69 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 01:13:18,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 355 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 01:13:19,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84603 states. [2022-02-09 01:13:21,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84603 to 65856. [2022-02-09 01:13:21,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65856 states, 65855 states have (on average 4.5458659175461245) internal successors, (299368), 65855 states have internal predecessors, (299368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:22,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65856 states to 65856 states and 299368 transitions. [2022-02-09 01:13:22,099 INFO L78 Accepts]: Start accepts. Automaton has 65856 states and 299368 transitions. Word has length 98 [2022-02-09 01:13:22,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:13:22,100 INFO L470 AbstractCegarLoop]: Abstraction has 65856 states and 299368 transitions. [2022-02-09 01:13:22,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:22,100 INFO L276 IsEmpty]: Start isEmpty. Operand 65856 states and 299368 transitions. [2022-02-09 01:13:22,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-02-09 01:13:22,326 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:13:22,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:13:22,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-09 01:13:22,327 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:13:22,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:13:22,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1850810616, now seen corresponding path program 1 times [2022-02-09 01:13:22,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:13:22,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831439368] [2022-02-09 01:13:22,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:13:22,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:13:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:13:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:13:22,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:13:22,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831439368] [2022-02-09 01:13:22,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831439368] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 01:13:22,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550201321] [2022-02-09 01:13:22,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:13:22,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 01:13:22,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 01:13:22,412 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 01:13:22,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 01:13:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:13:22,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-09 01:13:22,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 01:13:22,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:13:22,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 01:13:22,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:13:22,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550201321] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 01:13:22,970 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 01:13:22,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 10 [2022-02-09 01:13:22,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588902626] [2022-02-09 01:13:22,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 01:13:22,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 01:13:22,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:13:22,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 01:13:22,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-02-09 01:13:22,971 INFO L87 Difference]: Start difference. First operand 65856 states and 299368 transitions. Second operand has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:13:25,824 INFO L93 Difference]: Finished difference Result 174594 states and 797644 transitions. [2022-02-09 01:13:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 01:13:25,825 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-02-09 01:13:25,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:13:27,159 INFO L225 Difference]: With dead ends: 174594 [2022-02-09 01:13:27,160 INFO L226 Difference]: Without dead ends: 174594 [2022-02-09 01:13:27,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-02-09 01:13:27,160 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 498 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 01:13:27,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 1373 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 01:13:27,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174594 states. [2022-02-09 01:13:31,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174594 to 62931. [2022-02-09 01:13:31,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62931 states, 62930 states have (on average 4.5571269664706815) internal successors, (286780), 62930 states have internal predecessors, (286780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62931 states to 62931 states and 286780 transitions. [2022-02-09 01:13:31,943 INFO L78 Accepts]: Start accepts. Automaton has 62931 states and 286780 transitions. Word has length 103 [2022-02-09 01:13:31,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:13:31,943 INFO L470 AbstractCegarLoop]: Abstraction has 62931 states and 286780 transitions. [2022-02-09 01:13:31,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:31,943 INFO L276 IsEmpty]: Start isEmpty. Operand 62931 states and 286780 transitions. [2022-02-09 01:13:32,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-02-09 01:13:32,661 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:13:32,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:13:32,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 01:13:32,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 01:13:32,862 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:13:32,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:13:32,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2140980418, now seen corresponding path program 1 times [2022-02-09 01:13:32,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:13:32,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46194384] [2022-02-09 01:13:32,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:13:32,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:13:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:13:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:13:32,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:13:32,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46194384] [2022-02-09 01:13:32,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46194384] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:13:32,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:13:32,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 01:13:32,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842785802] [2022-02-09 01:13:32,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:13:32,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 01:13:32,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:13:32,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 01:13:32,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:13:32,957 INFO L87 Difference]: Start difference. First operand 62931 states and 286780 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:34,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:13:34,302 INFO L93 Difference]: Finished difference Result 111649 states and 511120 transitions. [2022-02-09 01:13:34,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 01:13:34,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-02-09 01:13:34,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:13:35,846 INFO L225 Difference]: With dead ends: 111649 [2022-02-09 01:13:35,846 INFO L226 Difference]: Without dead ends: 111649 [2022-02-09 01:13:35,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:13:35,862 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 206 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:13:35,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 487 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:13:36,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111649 states. [2022-02-09 01:13:38,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111649 to 64031. [2022-02-09 01:13:38,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64031 states, 64030 states have (on average 4.558878650632516) internal successors, (291905), 64030 states have internal predecessors, (291905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:39,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64031 states to 64031 states and 291905 transitions. [2022-02-09 01:13:39,615 INFO L78 Accepts]: Start accepts. Automaton has 64031 states and 291905 transitions. Word has length 103 [2022-02-09 01:13:39,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:13:39,615 INFO L470 AbstractCegarLoop]: Abstraction has 64031 states and 291905 transitions. [2022-02-09 01:13:39,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:39,615 INFO L276 IsEmpty]: Start isEmpty. Operand 64031 states and 291905 transitions. [2022-02-09 01:13:39,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-02-09 01:13:39,791 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:13:39,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:13:39,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-09 01:13:39,792 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:13:39,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:13:39,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1279880700, now seen corresponding path program 2 times [2022-02-09 01:13:39,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:13:39,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766631635] [2022-02-09 01:13:39,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:13:39,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:13:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:13:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:13:39,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:13:39,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766631635] [2022-02-09 01:13:39,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766631635] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 01:13:39,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 01:13:39,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 01:13:39,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338200678] [2022-02-09 01:13:39,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 01:13:39,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 01:13:39,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:13:39,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 01:13:39,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-09 01:13:39,864 INFO L87 Difference]: Start difference. First operand 64031 states and 291905 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:41,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:13:41,491 INFO L93 Difference]: Finished difference Result 104161 states and 476350 transitions. [2022-02-09 01:13:41,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 01:13:41,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-02-09 01:13:41,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:13:42,113 INFO L225 Difference]: With dead ends: 104161 [2022-02-09 01:13:42,114 INFO L226 Difference]: Without dead ends: 104161 [2022-02-09 01:13:42,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-09 01:13:42,114 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 212 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:13:42,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 523 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:13:42,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104161 states. [2022-02-09 01:13:44,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104161 to 59019. [2022-02-09 01:13:44,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59019 states, 59018 states have (on average 4.546002914365109) internal successors, (268296), 59018 states have internal predecessors, (268296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:45,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59019 states to 59019 states and 268296 transitions. [2022-02-09 01:13:45,246 INFO L78 Accepts]: Start accepts. Automaton has 59019 states and 268296 transitions. Word has length 103 [2022-02-09 01:13:45,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:13:45,246 INFO L470 AbstractCegarLoop]: Abstraction has 59019 states and 268296 transitions. [2022-02-09 01:13:45,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:45,247 INFO L276 IsEmpty]: Start isEmpty. Operand 59019 states and 268296 transitions. [2022-02-09 01:13:45,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-02-09 01:13:45,442 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:13:45,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:13:45,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-09 01:13:45,442 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:13:45,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:13:45,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1462318488, now seen corresponding path program 2 times [2022-02-09 01:13:45,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:13:45,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350885485] [2022-02-09 01:13:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:13:45,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:13:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:13:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:13:45,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:13:45,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350885485] [2022-02-09 01:13:45,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350885485] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 01:13:45,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183455946] [2022-02-09 01:13:45,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 01:13:45,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 01:13:45,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 01:13:45,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 01:13:45,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 01:13:45,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 01:13:45,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 01:13:45,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-09 01:13:45,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 01:13:45,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:13:45,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 01:13:46,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:13:46,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183455946] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 01:13:46,091 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 01:13:46,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-02-09 01:13:46,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835917959] [2022-02-09 01:13:46,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 01:13:46,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-09 01:13:46,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:13:46,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-09 01:13:46,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-02-09 01:13:46,093 INFO L87 Difference]: Start difference. First operand 59019 states and 268296 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:13:47,081 INFO L93 Difference]: Finished difference Result 84164 states and 383640 transitions. [2022-02-09 01:13:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 01:13:47,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-02-09 01:13:47,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:13:47,837 INFO L225 Difference]: With dead ends: 84164 [2022-02-09 01:13:47,837 INFO L226 Difference]: Without dead ends: 84164 [2022-02-09 01:13:47,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-02-09 01:13:47,837 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 296 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:13:47,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 744 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:13:47,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84164 states. [2022-02-09 01:13:49,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84164 to 48618. [2022-02-09 01:13:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48618 states, 48617 states have (on average 4.567846638007281) internal successors, (222075), 48617 states have internal predecessors, (222075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:49,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48618 states to 48618 states and 222075 transitions. [2022-02-09 01:13:49,920 INFO L78 Accepts]: Start accepts. Automaton has 48618 states and 222075 transitions. Word has length 103 [2022-02-09 01:13:49,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:13:49,920 INFO L470 AbstractCegarLoop]: Abstraction has 48618 states and 222075 transitions. [2022-02-09 01:13:49,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:49,921 INFO L276 IsEmpty]: Start isEmpty. Operand 48618 states and 222075 transitions. [2022-02-09 01:13:50,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-09 01:13:50,054 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:13:50,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:13:50,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-09 01:13:50,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 01:13:50,255 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:13:50,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:13:50,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1358209140, now seen corresponding path program 1 times [2022-02-09 01:13:50,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:13:50,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57206964] [2022-02-09 01:13:50,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:13:50,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:13:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:13:50,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 01:13:50,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:13:50,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57206964] [2022-02-09 01:13:50,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57206964] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 01:13:50,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657014172] [2022-02-09 01:13:50,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:13:50,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 01:13:50,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 01:13:50,370 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 01:13:50,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 01:13:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:13:50,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-09 01:13:50,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 01:13:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:13:51,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 01:13:51,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:13:51,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657014172] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 01:13:51,270 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 01:13:51,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2022-02-09 01:13:51,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508593170] [2022-02-09 01:13:51,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 01:13:51,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 01:13:51,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:13:51,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 01:13:51,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-09 01:13:51,271 INFO L87 Difference]: Start difference. First operand 48618 states and 222075 transitions. Second operand has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:52,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:13:52,663 INFO L93 Difference]: Finished difference Result 140261 states and 633845 transitions. [2022-02-09 01:13:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 01:13:52,663 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-02-09 01:13:52,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:13:53,810 INFO L225 Difference]: With dead ends: 140261 [2022-02-09 01:13:53,810 INFO L226 Difference]: Without dead ends: 132800 [2022-02-09 01:13:53,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 212 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-02-09 01:13:53,813 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 242 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 01:13:53,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 867 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 01:13:54,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132800 states. [2022-02-09 01:13:57,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132800 to 122554. [2022-02-09 01:13:58,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122554 states, 122553 states have (on average 4.562670844450972) internal successors, (559169), 122553 states have internal predecessors, (559169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:59,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122554 states to 122554 states and 559169 transitions. [2022-02-09 01:13:59,651 INFO L78 Accepts]: Start accepts. Automaton has 122554 states and 559169 transitions. Word has length 108 [2022-02-09 01:13:59,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:13:59,651 INFO L470 AbstractCegarLoop]: Abstraction has 122554 states and 559169 transitions. [2022-02-09 01:13:59,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:13:59,652 INFO L276 IsEmpty]: Start isEmpty. Operand 122554 states and 559169 transitions. [2022-02-09 01:14:00,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-09 01:14:00,109 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:14:00,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 01:14:00,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-09 01:14:00,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-02-09 01:14:00,310 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:14:00,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:14:00,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1794452218, now seen corresponding path program 2 times [2022-02-09 01:14:00,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:14:00,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412055561] [2022-02-09 01:14:00,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:14:00,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:14:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:14:00,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:14:00,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:14:00,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412055561] [2022-02-09 01:14:00,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412055561] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 01:14:00,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414932776] [2022-02-09 01:14:00,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 01:14:00,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 01:14:00,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 01:14:00,444 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 01:14:00,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 01:14:00,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 01:14:00,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 01:14:00,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-09 01:14:00,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 01:14:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:14:00,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 01:14:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:14:01,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414932776] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 01:14:01,258 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 01:14:01,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2022-02-09 01:14:01,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692125170] [2022-02-09 01:14:01,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 01:14:01,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-09 01:14:01,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:14:01,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-09 01:14:01,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-02-09 01:14:01,260 INFO L87 Difference]: Start difference. First operand 122554 states and 559169 transitions. Second operand has 13 states, 13 states have (on average 17.384615384615383) internal successors, (226), 13 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:14:05,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:14:05,897 INFO L93 Difference]: Finished difference Result 274034 states and 1244126 transitions. [2022-02-09 01:14:05,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 01:14:05,897 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 17.384615384615383) internal successors, (226), 13 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-02-09 01:14:05,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 01:14:08,557 INFO L225 Difference]: With dead ends: 274034 [2022-02-09 01:14:08,557 INFO L226 Difference]: Without dead ends: 266006 [2022-02-09 01:14:08,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 210 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-02-09 01:14:08,558 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 421 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 01:14:08,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1460 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 01:14:09,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266006 states. [2022-02-09 01:14:16,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266006 to 165829. [2022-02-09 01:14:17,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165829 states, 165828 states have (on average 4.580318160986082) internal successors, (759545), 165828 states have internal predecessors, (759545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:14:19,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165829 states to 165829 states and 759545 transitions. [2022-02-09 01:14:19,143 INFO L78 Accepts]: Start accepts. Automaton has 165829 states and 759545 transitions. Word has length 108 [2022-02-09 01:14:19,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 01:14:19,144 INFO L470 AbstractCegarLoop]: Abstraction has 165829 states and 759545 transitions. [2022-02-09 01:14:19,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.384615384615383) internal successors, (226), 13 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:14:19,144 INFO L276 IsEmpty]: Start isEmpty. Operand 165829 states and 759545 transitions. [2022-02-09 01:14:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-02-09 01:14:20,135 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 01:14:20,136 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-09 01:14:20,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 01:14:20,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 01:14:20,345 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 01:14:20,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 01:14:20,346 INFO L85 PathProgramCache]: Analyzing trace with hash -644865062, now seen corresponding path program 3 times [2022-02-09 01:14:20,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 01:14:20,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44698258] [2022-02-09 01:14:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 01:14:20,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 01:14:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 01:14:20,476 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 01:14:20,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 01:14:20,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44698258] [2022-02-09 01:14:20,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44698258] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 01:14:20,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116178313] [2022-02-09 01:14:20,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 01:14:20,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 01:14:20,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 01:14:20,480 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 01:14:20,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-09 01:14:20,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-09 01:14:20,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 01:14:20,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-09 01:14:20,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 01:14:20,933 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 01:14:20,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 01:14:21,251 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 01:14:21,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116178313] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 01:14:21,251 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 01:14:21,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2022-02-09 01:14:21,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735670562] [2022-02-09 01:14:21,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 01:14:21,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 01:14:21,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 01:14:21,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 01:14:21,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-02-09 01:14:21,253 INFO L87 Difference]: Start difference. First operand 165829 states and 759545 transitions. Second operand has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 01:15:24,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 01:15:24,991 INFO L93 Difference]: Finished difference Result 1749100 states and 7999941 transitions. [2022-02-09 01:15:24,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-02-09 01:15:24,992 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-02-09 01:15:24,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted.