/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-more-buffer-mult2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:48:59,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:48:59,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:48:59,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 22:48:59,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:48:59,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:48:59,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:48:59,612 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 [2022-02-10 22:48:59,638 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:48:59,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:48:59,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:48:59,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:48:59,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:48:59,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:48:59,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:48:59,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:48:59,640 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:48:59,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:48:59,641 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:48:59,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:48:59,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:48:59,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:48:59,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:48:59,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:48:59,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:48:59,641 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:48:59,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:48:59,641 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:48:59,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:48:59,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:48:59,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:48:59,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:48:59,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:48:59,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:48:59,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:48:59,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:48:59,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:48:59,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:48:59,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:48:59,643 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:48:59,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:48:59,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:48:59,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:48:59,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:48:59,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:48:59,868 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:48:59,868 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:48:59,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2022-02-10 22:48:59,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0b6bd762/cdbe2a9971c6440f8792652e0fe073d3/FLAG97ee346f5 [2022-02-10 22:49:00,221 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:49:00,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2022-02-10 22:49:00,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0b6bd762/cdbe2a9971c6440f8792652e0fe073d3/FLAG97ee346f5 [2022-02-10 22:49:00,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0b6bd762/cdbe2a9971c6440f8792652e0fe073d3 [2022-02-10 22:49:00,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:49:00,674 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:49:00,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:49:00,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:49:00,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:49:00,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:00,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2f3d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00, skipping insertion in model container [2022-02-10 22:49:00,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:00,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:49:00,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:49:00,881 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-more-buffer-mult2.wvr.c[4099,4112] [2022-02-10 22:49:00,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:49:00,891 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:49:00,907 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-more-buffer-mult2.wvr.c[4099,4112] [2022-02-10 22:49:00,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:49:00,921 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:49:00,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00 WrapperNode [2022-02-10 22:49:00,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:49:00,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:49:00,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:49:00,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:49:00,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:00,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:00,965 INFO L137 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 303 [2022-02-10 22:49:00,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:49:00,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:49:00,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:49:00,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:49:00,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:00,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:00,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:00,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:01,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:01,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:01,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:01,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:49:01,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:49:01,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:49:01,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:49:01,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00" (1/1) ... [2022-02-10 22:49:01,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:49:01,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:01,045 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) [2022-02-10 22:49:01,083 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 [2022-02-10 22:49:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:49:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:49:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:49:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:49:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:49:01,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:49:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:49:01,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:49:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 22:49:01,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 22:49:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-10 22:49:01,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-10 22:49:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:49:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 22:49:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 22:49:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-10 22:49:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:49:01,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:49:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:49:01,100 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:49:01,203 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:49:01,204 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:49:01,525 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:49:01,640 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:49:01,640 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-02-10 22:49:01,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:49:01 BoogieIcfgContainer [2022-02-10 22:49:01,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:49:01,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:49:01,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:49:01,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:49:01,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:49:00" (1/3) ... [2022-02-10 22:49:01,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9875d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:49:01, skipping insertion in model container [2022-02-10 22:49:01,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:49:00" (2/3) ... [2022-02-10 22:49:01,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9875d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:49:01, skipping insertion in model container [2022-02-10 22:49:01,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:49:01" (3/3) ... [2022-02-10 22:49:01,648 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult2.wvr.c [2022-02-10 22:49:01,651 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:49:01,651 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:49:01,651 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:49:01,651 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:49:01,699 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,700 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,700 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,700 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,701 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,701 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,701 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,701 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,701 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,701 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,701 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,704 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,704 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,704 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,704 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,707 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,707 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,707 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,707 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,708 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,708 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,708 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,708 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,708 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,708 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,708 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,709 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,709 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,709 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,709 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,709 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,709 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,709 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,709 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,709 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,709 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,710 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,710 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,710 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,710 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,710 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,710 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,711 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,711 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,711 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,711 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,712 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,712 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,712 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,712 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,713 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,713 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,713 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,713 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,713 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,714 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,714 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,714 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,714 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,714 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,714 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,714 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,714 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,714 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,715 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,715 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,715 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,715 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,715 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,715 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,716 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,716 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,716 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,716 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,716 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,716 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,716 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,716 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,716 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,716 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,717 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,717 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,719 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,720 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,720 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,720 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,720 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,720 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,720 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,720 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,720 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,720 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,721 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,721 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,721 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,721 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,721 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,722 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,722 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,722 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,722 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,722 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,722 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,723 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,723 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,723 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,723 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,723 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,723 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,724 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,724 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,724 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,724 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,724 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,724 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,724 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:49:01,728 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-10 22:49:01,773 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:49:01,779 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, 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 [2022-02-10 22:49:01,779 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-10 22:49:01,794 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 224 places, 229 transitions, 490 flow [2022-02-10 22:49:02,302 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13335 states, 13334 states have (on average 4.988150592470377) internal successors, (66512), 13334 states have internal predecessors, (66512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:02,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 13335 states, 13334 states have (on average 4.988150592470377) internal successors, (66512), 13334 states have internal predecessors, (66512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:02,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-10 22:49:02,471 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:02,472 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:02,473 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)] === [2022-02-10 22:49:02,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:02,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1073124122, now seen corresponding path program 1 times [2022-02-10 22:49:02,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:02,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674093083] [2022-02-10 22:49:02,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:02,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:02,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:49:02,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:02,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674093083] [2022-02-10 22:49:02,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674093083] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:02,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:02,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:49:02,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60565959] [2022-02-10 22:49:02,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:02,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:49:02,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:02,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:49:02,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:49:02,793 INFO L87 Difference]: Start difference. First operand has 13335 states, 13334 states have (on average 4.988150592470377) internal successors, (66512), 13334 states have internal predecessors, (66512), 0 states have call successors, (0), 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 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:03,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:03,008 INFO L93 Difference]: Finished difference Result 13335 states and 59558 transitions. [2022-02-10 22:49:03,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:49:03,010 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2022-02-10 22:49:03,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:03,156 INFO L225 Difference]: With dead ends: 13335 [2022-02-10 22:49:03,156 INFO L226 Difference]: Without dead ends: 13329 [2022-02-10 22:49:03,157 INFO L933 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 [2022-02-10 22:49:03,160 INFO L934 BasicCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:03,160 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:49:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13329 states. [2022-02-10 22:49:03,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13329 to 13329. [2022-02-10 22:49:03,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13329 states, 13328 states have (on average 4.468187274909964) internal successors, (59552), 13328 states have internal predecessors, (59552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:03,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13329 states to 13329 states and 59552 transitions. [2022-02-10 22:49:03,748 INFO L78 Accepts]: Start accepts. Automaton has 13329 states and 59552 transitions. Word has length 168 [2022-02-10 22:49:03,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:03,749 INFO L470 AbstractCegarLoop]: Abstraction has 13329 states and 59552 transitions. [2022-02-10 22:49:03,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:03,750 INFO L276 IsEmpty]: Start isEmpty. Operand 13329 states and 59552 transitions. [2022-02-10 22:49:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-10 22:49:03,794 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:03,794 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:03,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:49:03,794 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)] === [2022-02-10 22:49:03,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:03,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1639336348, now seen corresponding path program 1 times [2022-02-10 22:49:03,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:03,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321080059] [2022-02-10 22:49:03,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:03,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:49:04,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:04,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321080059] [2022-02-10 22:49:04,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321080059] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:04,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:04,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:49:04,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002991586] [2022-02-10 22:49:04,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:04,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:49:04,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:04,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:49:04,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:49:04,167 INFO L87 Difference]: Start difference. First operand 13329 states and 59552 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:04,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:04,504 INFO L93 Difference]: Finished difference Result 22523 states and 101314 transitions. [2022-02-10 22:49:04,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:49:04,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2022-02-10 22:49:04,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:04,630 INFO L225 Difference]: With dead ends: 22523 [2022-02-10 22:49:04,630 INFO L226 Difference]: Without dead ends: 20528 [2022-02-10 22:49:04,631 INFO L933 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 [2022-02-10 22:49:04,631 INFO L934 BasicCegarLoop]: 180 mSDtfsCounter, 26 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:04,632 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 578 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:04,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20528 states. [2022-02-10 22:49:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20528 to 17811. [2022-02-10 22:49:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17811 states, 17810 states have (on average 4.470971364402021) internal successors, (79628), 17810 states have internal predecessors, (79628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:05,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17811 states to 17811 states and 79628 transitions. [2022-02-10 22:49:05,301 INFO L78 Accepts]: Start accepts. Automaton has 17811 states and 79628 transitions. Word has length 168 [2022-02-10 22:49:05,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:05,302 INFO L470 AbstractCegarLoop]: Abstraction has 17811 states and 79628 transitions. [2022-02-10 22:49:05,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:05,303 INFO L276 IsEmpty]: Start isEmpty. Operand 17811 states and 79628 transitions. [2022-02-10 22:49:05,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:49:05,377 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:05,377 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:05,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:49:05,377 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)] === [2022-02-10 22:49:05,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:05,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1549721869, now seen corresponding path program 1 times [2022-02-10 22:49:05,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:05,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299779493] [2022-02-10 22:49:05,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:05,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:49:05,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:05,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299779493] [2022-02-10 22:49:05,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299779493] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:05,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:05,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:49:05,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764977551] [2022-02-10 22:49:05,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:05,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:49:05,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:05,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:49:05,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:49:05,475 INFO L87 Difference]: Start difference. First operand 17811 states and 79628 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:05,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:05,705 INFO L93 Difference]: Finished difference Result 27518 states and 121690 transitions. [2022-02-10 22:49:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:49:05,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-02-10 22:49:05,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:05,836 INFO L225 Difference]: With dead ends: 27518 [2022-02-10 22:49:05,836 INFO L226 Difference]: Without dead ends: 25988 [2022-02-10 22:49:05,837 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:49:05,838 INFO L934 BasicCegarLoop]: 181 mSDtfsCounter, 36 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:05,838 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 275 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:49:06,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25988 states. [2022-02-10 22:49:06,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25988 to 21389. [2022-02-10 22:49:06,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21389 states, 21388 states have (on average 4.462081541051057) internal successors, (95435), 21388 states have internal predecessors, (95435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:07,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21389 states to 21389 states and 95435 transitions. [2022-02-10 22:49:07,115 INFO L78 Accepts]: Start accepts. Automaton has 21389 states and 95435 transitions. Word has length 171 [2022-02-10 22:49:07,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:07,115 INFO L470 AbstractCegarLoop]: Abstraction has 21389 states and 95435 transitions. [2022-02-10 22:49:07,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:07,116 INFO L276 IsEmpty]: Start isEmpty. Operand 21389 states and 95435 transitions. [2022-02-10 22:49:07,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:49:07,181 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:07,181 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:07,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:49:07,181 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)] === [2022-02-10 22:49:07,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:07,182 INFO L85 PathProgramCache]: Analyzing trace with hash 670846327, now seen corresponding path program 1 times [2022-02-10 22:49:07,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:07,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320889165] [2022-02-10 22:49:07,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:07,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:07,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:49:07,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:07,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320889165] [2022-02-10 22:49:07,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320889165] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:07,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:07,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:49:07,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354668034] [2022-02-10 22:49:07,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:07,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:49:07,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:07,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:49:07,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:49:07,261 INFO L87 Difference]: Start difference. First operand 21389 states and 95435 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:07,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:07,622 INFO L93 Difference]: Finished difference Result 32705 states and 143710 transitions. [2022-02-10 22:49:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:49:07,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-02-10 22:49:07,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:07,892 INFO L225 Difference]: With dead ends: 32705 [2022-02-10 22:49:07,893 INFO L226 Difference]: Without dead ends: 30560 [2022-02-10 22:49:07,893 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:49:07,899 INFO L934 BasicCegarLoop]: 189 mSDtfsCounter, 48 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:07,900 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 282 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:49:07,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30560 states. [2022-02-10 22:49:08,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30560 to 26690. [2022-02-10 22:49:08,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26690 states, 26689 states have (on average 4.411855071377722) internal successors, (117748), 26689 states have internal predecessors, (117748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26690 states to 26690 states and 117748 transitions. [2022-02-10 22:49:08,856 INFO L78 Accepts]: Start accepts. Automaton has 26690 states and 117748 transitions. Word has length 171 [2022-02-10 22:49:08,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:08,857 INFO L470 AbstractCegarLoop]: Abstraction has 26690 states and 117748 transitions. [2022-02-10 22:49:08,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:08,857 INFO L276 IsEmpty]: Start isEmpty. Operand 26690 states and 117748 transitions. [2022-02-10 22:49:08,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-10 22:49:08,924 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:08,924 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:08,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:49:08,925 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)] === [2022-02-10 22:49:08,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:08,925 INFO L85 PathProgramCache]: Analyzing trace with hash -506008106, now seen corresponding path program 1 times [2022-02-10 22:49:08,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:08,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504747888] [2022-02-10 22:49:08,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:08,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:49:09,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:09,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504747888] [2022-02-10 22:49:09,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504747888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:09,010 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:09,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:49:09,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407562625] [2022-02-10 22:49:09,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:09,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:49:09,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:09,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:49:09,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:49:09,011 INFO L87 Difference]: Start difference. First operand 26690 states and 117748 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:09,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:09,464 INFO L93 Difference]: Finished difference Result 38942 states and 167822 transitions. [2022-02-10 22:49:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:49:09,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2022-02-10 22:49:09,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:09,778 INFO L225 Difference]: With dead ends: 38942 [2022-02-10 22:49:09,778 INFO L226 Difference]: Without dead ends: 35189 [2022-02-10 22:49:09,778 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:49:09,781 INFO L934 BasicCegarLoop]: 174 mSDtfsCounter, 439 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:09,781 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 637 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:09,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35189 states. [2022-02-10 22:49:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35189 to 30072. [2022-02-10 22:49:10,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30072 states, 30071 states have (on average 4.391706295101593) internal successors, (132063), 30071 states have internal predecessors, (132063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:10,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30072 states to 30072 states and 132063 transitions. [2022-02-10 22:49:10,844 INFO L78 Accepts]: Start accepts. Automaton has 30072 states and 132063 transitions. Word has length 174 [2022-02-10 22:49:10,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:10,844 INFO L470 AbstractCegarLoop]: Abstraction has 30072 states and 132063 transitions. [2022-02-10 22:49:10,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:10,844 INFO L276 IsEmpty]: Start isEmpty. Operand 30072 states and 132063 transitions. [2022-02-10 22:49:10,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-10 22:49:10,926 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:10,927 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:10,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:49:10,927 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)] === [2022-02-10 22:49:10,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:10,927 INFO L85 PathProgramCache]: Analyzing trace with hash 976100160, now seen corresponding path program 1 times [2022-02-10 22:49:10,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:10,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112599560] [2022-02-10 22:49:10,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:10,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:49:10,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:10,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112599560] [2022-02-10 22:49:10,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112599560] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:10,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:10,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:49:10,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389664730] [2022-02-10 22:49:10,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:10,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:49:10,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:10,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:49:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:49:10,984 INFO L87 Difference]: Start difference. First operand 30072 states and 132063 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:11,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:11,532 INFO L93 Difference]: Finished difference Result 42238 states and 181429 transitions. [2022-02-10 22:49:11,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:49:11,533 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2022-02-10 22:49:11,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:11,716 INFO L225 Difference]: With dead ends: 42238 [2022-02-10 22:49:11,717 INFO L226 Difference]: Without dead ends: 38485 [2022-02-10 22:49:11,718 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:49:11,718 INFO L934 BasicCegarLoop]: 174 mSDtfsCounter, 177 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:11,719 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 631 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:11,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38485 states. [2022-02-10 22:49:12,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38485 to 33062. [2022-02-10 22:49:12,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33062 states, 33061 states have (on average 4.378845164998034) internal successors, (144769), 33061 states have internal predecessors, (144769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 144769 transitions. [2022-02-10 22:49:12,910 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 144769 transitions. Word has length 174 [2022-02-10 22:49:12,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:12,910 INFO L470 AbstractCegarLoop]: Abstraction has 33062 states and 144769 transitions. [2022-02-10 22:49:12,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:12,911 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 144769 transitions. [2022-02-10 22:49:13,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 22:49:13,220 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:13,220 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:13,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 22:49:13,220 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)] === [2022-02-10 22:49:13,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:13,221 INFO L85 PathProgramCache]: Analyzing trace with hash -342805233, now seen corresponding path program 1 times [2022-02-10 22:49:13,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:13,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386323958] [2022-02-10 22:49:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:13,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:13,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:13,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386323958] [2022-02-10 22:49:13,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386323958] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:13,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:13,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:49:13,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677139512] [2022-02-10 22:49:13,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:13,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:49:13,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:13,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:49:13,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:49:13,569 INFO L87 Difference]: Start difference. First operand 33062 states and 144769 transitions. Second operand has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:14,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:14,229 INFO L93 Difference]: Finished difference Result 38783 states and 167854 transitions. [2022-02-10 22:49:14,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:49:14,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-02-10 22:49:14,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:14,378 INFO L225 Difference]: With dead ends: 38783 [2022-02-10 22:49:14,378 INFO L226 Difference]: Without dead ends: 38099 [2022-02-10 22:49:14,378 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:49:14,379 INFO L934 BasicCegarLoop]: 250 mSDtfsCounter, 516 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:14,379 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 923 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:14,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38099 states. [2022-02-10 22:49:15,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38099 to 32954. [2022-02-10 22:49:15,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32954 states, 32953 states have (on average 4.377810821473007) internal successors, (144262), 32953 states have internal predecessors, (144262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:15,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32954 states to 32954 states and 144262 transitions. [2022-02-10 22:49:15,406 INFO L78 Accepts]: Start accepts. Automaton has 32954 states and 144262 transitions. Word has length 181 [2022-02-10 22:49:15,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:15,406 INFO L470 AbstractCegarLoop]: Abstraction has 32954 states and 144262 transitions. [2022-02-10 22:49:15,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:15,407 INFO L276 IsEmpty]: Start isEmpty. Operand 32954 states and 144262 transitions. [2022-02-10 22:49:15,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 22:49:15,485 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:15,486 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:15,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 22:49:15,486 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)] === [2022-02-10 22:49:15,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:15,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1721272917, now seen corresponding path program 2 times [2022-02-10 22:49:15,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:15,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516264504] [2022-02-10 22:49:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:15,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:15,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:15,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516264504] [2022-02-10 22:49:15,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516264504] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:15,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243121891] [2022-02-10 22:49:15,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:49:15,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:15,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:15,796 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) [2022-02-10 22:49:15,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:49:15,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:49:15,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:49:15,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:49:15,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:16,704 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:16,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:49:17,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:17,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243121891] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:17,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 22:49:17,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 17 [2022-02-10 22:49:17,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514627488] [2022-02-10 22:49:17,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:17,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:49:17,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:17,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:49:17,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2022-02-10 22:49:17,321 INFO L87 Difference]: Start difference. First operand 32954 states and 144262 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:18,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:18,018 INFO L93 Difference]: Finished difference Result 57113 states and 242912 transitions. [2022-02-10 22:49:18,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 22:49:18,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-02-10 22:49:18,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:18,262 INFO L225 Difference]: With dead ends: 57113 [2022-02-10 22:49:18,262 INFO L226 Difference]: Without dead ends: 55841 [2022-02-10 22:49:18,263 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:49:18,263 INFO L934 BasicCegarLoop]: 256 mSDtfsCounter, 632 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:18,263 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [632 Valid, 862 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:18,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55841 states. [2022-02-10 22:49:19,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55841 to 35260. [2022-02-10 22:49:19,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35260 states, 35259 states have (on average 4.411838112255027) internal successors, (155557), 35259 states have internal predecessors, (155557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:19,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35260 states to 35260 states and 155557 transitions. [2022-02-10 22:49:19,566 INFO L78 Accepts]: Start accepts. Automaton has 35260 states and 155557 transitions. Word has length 181 [2022-02-10 22:49:19,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:19,566 INFO L470 AbstractCegarLoop]: Abstraction has 35260 states and 155557 transitions. [2022-02-10 22:49:19,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:19,566 INFO L276 IsEmpty]: Start isEmpty. Operand 35260 states and 155557 transitions. [2022-02-10 22:49:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 22:49:19,656 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:19,656 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:19,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-10 22:49:19,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:19,863 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)] === [2022-02-10 22:49:19,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:19,864 INFO L85 PathProgramCache]: Analyzing trace with hash -484338227, now seen corresponding path program 3 times [2022-02-10 22:49:19,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:19,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128615238] [2022-02-10 22:49:19,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:19,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:20,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:20,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:20,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128615238] [2022-02-10 22:49:20,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128615238] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:20,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:20,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:49:20,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344537525] [2022-02-10 22:49:20,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:20,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:49:20,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:20,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:49:20,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:49:20,117 INFO L87 Difference]: Start difference. First operand 35260 states and 155557 transitions. Second operand has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:20,749 INFO L93 Difference]: Finished difference Result 41368 states and 179312 transitions. [2022-02-10 22:49:20,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:49:20,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-02-10 22:49:20,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:20,910 INFO L225 Difference]: With dead ends: 41368 [2022-02-10 22:49:20,910 INFO L226 Difference]: Without dead ends: 40585 [2022-02-10 22:49:20,911 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:49:20,911 INFO L934 BasicCegarLoop]: 250 mSDtfsCounter, 517 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:20,912 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [517 Valid, 967 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:20,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40585 states. [2022-02-10 22:49:21,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40585 to 35196. [2022-02-10 22:49:21,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35196 states, 35195 states have (on average 4.409518397499645) internal successors, (155193), 35195 states have internal predecessors, (155193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35196 states to 35196 states and 155193 transitions. [2022-02-10 22:49:22,064 INFO L78 Accepts]: Start accepts. Automaton has 35196 states and 155193 transitions. Word has length 181 [2022-02-10 22:49:22,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:22,064 INFO L470 AbstractCegarLoop]: Abstraction has 35196 states and 155193 transitions. [2022-02-10 22:49:22,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:22,065 INFO L276 IsEmpty]: Start isEmpty. Operand 35196 states and 155193 transitions. [2022-02-10 22:49:22,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 22:49:22,157 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:22,157 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:22,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 22:49:22,157 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)] === [2022-02-10 22:49:22,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:22,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1706007281, now seen corresponding path program 4 times [2022-02-10 22:49:22,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:22,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975842000] [2022-02-10 22:49:22,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:22,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:22,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:22,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975842000] [2022-02-10 22:49:22,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975842000] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:22,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664796845] [2022-02-10 22:49:22,498 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:49:22,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:22,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:22,499 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) [2022-02-10 22:49:22,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 22:49:22,635 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:49:22,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:49:22,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-10 22:49:22,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:23,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:23,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:49:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:49:23,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664796845] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:23,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 22:49:23,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 7] total 19 [2022-02-10 22:49:23,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562834084] [2022-02-10 22:49:23,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:23,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:49:23,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:23,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:49:23,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:49:23,586 INFO L87 Difference]: Start difference. First operand 35196 states and 155193 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:24,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:24,562 INFO L93 Difference]: Finished difference Result 69691 states and 295926 transitions. [2022-02-10 22:49:24,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-10 22:49:24,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-02-10 22:49:24,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:24,820 INFO L225 Difference]: With dead ends: 69691 [2022-02-10 22:49:24,820 INFO L226 Difference]: Without dead ends: 66171 [2022-02-10 22:49:24,820 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=1142, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:49:24,821 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 1500 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:24,821 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1500 Valid, 1132 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:49:25,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66171 states. [2022-02-10 22:49:26,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66171 to 33140. [2022-02-10 22:49:26,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33140 states, 33139 states have (on average 4.3826307371978634) internal successors, (145236), 33139 states have internal predecessors, (145236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:26,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33140 states to 33140 states and 145236 transitions. [2022-02-10 22:49:26,375 INFO L78 Accepts]: Start accepts. Automaton has 33140 states and 145236 transitions. Word has length 181 [2022-02-10 22:49:26,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:26,375 INFO L470 AbstractCegarLoop]: Abstraction has 33140 states and 145236 transitions. [2022-02-10 22:49:26,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:26,379 INFO L276 IsEmpty]: Start isEmpty. Operand 33140 states and 145236 transitions. [2022-02-10 22:49:26,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 22:49:26,508 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:26,508 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:26,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 22:49:26,719 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 [2022-02-10 22:49:26,720 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)] === [2022-02-10 22:49:26,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:26,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1482240685, now seen corresponding path program 5 times [2022-02-10 22:49:26,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:26,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741864044] [2022-02-10 22:49:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:26,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:26,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:26,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741864044] [2022-02-10 22:49:26,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741864044] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:26,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293849297] [2022-02-10 22:49:26,876 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:49:26,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:26,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:26,877 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) [2022-02-10 22:49:26,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 22:49:27,006 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:49:27,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:49:27,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-10 22:49:27,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:27,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:27,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:49:27,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:49:27,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293849297] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:27,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 22:49:27,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 7] total 19 [2022-02-10 22:49:27,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041992916] [2022-02-10 22:49:27,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:27,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:49:27,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:27,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:49:27,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:49:27,871 INFO L87 Difference]: Start difference. First operand 33140 states and 145236 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:28,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:28,984 INFO L93 Difference]: Finished difference Result 65487 states and 277086 transitions. [2022-02-10 22:49:28,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:49:28,985 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-02-10 22:49:28,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:29,429 INFO L225 Difference]: With dead ends: 65487 [2022-02-10 22:49:29,429 INFO L226 Difference]: Without dead ends: 64411 [2022-02-10 22:49:29,430 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=284, Invalid=1276, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:49:29,430 INFO L934 BasicCegarLoop]: 284 mSDtfsCounter, 1715 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:29,430 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 1158 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:49:29,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64411 states. [2022-02-10 22:49:30,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64411 to 31330. [2022-02-10 22:49:30,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31330 states, 31329 states have (on average 4.351623096811261) internal successors, (136332), 31329 states have internal predecessors, (136332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:30,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31330 states to 31330 states and 136332 transitions. [2022-02-10 22:49:30,758 INFO L78 Accepts]: Start accepts. Automaton has 31330 states and 136332 transitions. Word has length 181 [2022-02-10 22:49:30,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:30,758 INFO L470 AbstractCegarLoop]: Abstraction has 31330 states and 136332 transitions. [2022-02-10 22:49:30,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:30,758 INFO L276 IsEmpty]: Start isEmpty. Operand 31330 states and 136332 transitions. [2022-02-10 22:49:30,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 22:49:30,882 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:30,882 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:30,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 22:49:31,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:31,092 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)] === [2022-02-10 22:49:31,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:31,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1575791921, now seen corresponding path program 6 times [2022-02-10 22:49:31,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:31,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617764715] [2022-02-10 22:49:31,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:31,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:31,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:31,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:31,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617764715] [2022-02-10 22:49:31,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617764715] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:31,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:31,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:49:31,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437102089] [2022-02-10 22:49:31,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:31,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:49:31,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:31,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:49:31,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:49:31,272 INFO L87 Difference]: Start difference. First operand 31330 states and 136332 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:31,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:31,724 INFO L93 Difference]: Finished difference Result 34787 states and 151296 transitions. [2022-02-10 22:49:31,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:49:31,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-02-10 22:49:31,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:32,090 INFO L225 Difference]: With dead ends: 34787 [2022-02-10 22:49:32,090 INFO L226 Difference]: Without dead ends: 34111 [2022-02-10 22:49:32,090 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:49:32,091 INFO L934 BasicCegarLoop]: 240 mSDtfsCounter, 361 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:32,091 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 946 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:32,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34111 states. [2022-02-10 22:49:32,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34111 to 28825. [2022-02-10 22:49:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28825 states, 28824 states have (on average 4.389432417429919) internal successors, (126521), 28824 states have internal predecessors, (126521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28825 states to 28825 states and 126521 transitions. [2022-02-10 22:49:32,902 INFO L78 Accepts]: Start accepts. Automaton has 28825 states and 126521 transitions. Word has length 181 [2022-02-10 22:49:32,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:32,902 INFO L470 AbstractCegarLoop]: Abstraction has 28825 states and 126521 transitions. [2022-02-10 22:49:32,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:32,902 INFO L276 IsEmpty]: Start isEmpty. Operand 28825 states and 126521 transitions. [2022-02-10 22:49:32,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 22:49:32,969 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:32,969 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:32,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-10 22:49:32,970 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)] === [2022-02-10 22:49:32,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:32,970 INFO L85 PathProgramCache]: Analyzing trace with hash -802313301, now seen corresponding path program 1 times [2022-02-10 22:49:32,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:32,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935915445] [2022-02-10 22:49:32,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:32,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:33,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:33,124 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:33,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935915445] [2022-02-10 22:49:33,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935915445] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:33,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381068466] [2022-02-10 22:49:33,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:33,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:33,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:33,125 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) [2022-02-10 22:49:33,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 22:49:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:33,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-10 22:49:33,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:33,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:49:34,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:49:34,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381068466] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:49:34,510 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:49:34,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 11] total 21 [2022-02-10 22:49:34,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865845186] [2022-02-10 22:49:34,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:49:34,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-10 22:49:34,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:34,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-10 22:49:34,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:49:34,514 INFO L87 Difference]: Start difference. First operand 28825 states and 126521 transitions. Second operand has 21 states, 21 states have (on average 21.238095238095237) internal successors, (446), 21 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:36,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:36,866 INFO L93 Difference]: Finished difference Result 75725 states and 321758 transitions. [2022-02-10 22:49:36,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-10 22:49:36,866 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 21.238095238095237) internal successors, (446), 21 states have internal predecessors, (446), 0 states have call successors, (0), 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 181 [2022-02-10 22:49:36,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:37,336 INFO L225 Difference]: With dead ends: 75725 [2022-02-10 22:49:37,338 INFO L226 Difference]: Without dead ends: 71287 [2022-02-10 22:49:37,339 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1417 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=988, Invalid=3982, Unknown=0, NotChecked=0, Total=4970 [2022-02-10 22:49:37,339 INFO L934 BasicCegarLoop]: 329 mSDtfsCounter, 2079 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2079 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:37,339 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2079 Valid, 3665 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:49:37,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71287 states. [2022-02-10 22:49:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71287 to 30564. [2022-02-10 22:49:38,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30564 states, 30563 states have (on average 4.41651670320322) internal successors, (134982), 30563 states have internal predecessors, (134982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:38,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30564 states to 30564 states and 134982 transitions. [2022-02-10 22:49:38,737 INFO L78 Accepts]: Start accepts. Automaton has 30564 states and 134982 transitions. Word has length 181 [2022-02-10 22:49:38,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:38,737 INFO L470 AbstractCegarLoop]: Abstraction has 30564 states and 134982 transitions. [2022-02-10 22:49:38,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 21.238095238095237) internal successors, (446), 21 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:38,737 INFO L276 IsEmpty]: Start isEmpty. Operand 30564 states and 134982 transitions. [2022-02-10 22:49:38,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 22:49:38,845 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:38,847 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:38,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-10 22:49:39,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:39,051 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)] === [2022-02-10 22:49:39,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:39,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1876789873, now seen corresponding path program 2 times [2022-02-10 22:49:39,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:39,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452434931] [2022-02-10 22:49:39,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:39,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:39,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:39,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:39,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452434931] [2022-02-10 22:49:39,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452434931] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:39,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:39,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:49:39,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881417643] [2022-02-10 22:49:39,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:39,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:49:39,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:39,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:49:39,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:49:39,257 INFO L87 Difference]: Start difference. First operand 30564 states and 134982 transitions. Second operand has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:39,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:39,703 INFO L93 Difference]: Finished difference Result 38020 states and 165661 transitions. [2022-02-10 22:49:39,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:49:39,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-02-10 22:49:39,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:40,074 INFO L225 Difference]: With dead ends: 38020 [2022-02-10 22:49:40,075 INFO L226 Difference]: Without dead ends: 36358 [2022-02-10 22:49:40,075 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:49:40,075 INFO L934 BasicCegarLoop]: 255 mSDtfsCounter, 564 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:40,076 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [564 Valid, 1018 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:40,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36358 states. [2022-02-10 22:49:40,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36358 to 30390. [2022-02-10 22:49:40,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30390 states, 30389 states have (on average 4.421994800750271) internal successors, (134380), 30389 states have internal predecessors, (134380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:40,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30390 states to 30390 states and 134380 transitions. [2022-02-10 22:49:40,966 INFO L78 Accepts]: Start accepts. Automaton has 30390 states and 134380 transitions. Word has length 181 [2022-02-10 22:49:40,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:40,966 INFO L470 AbstractCegarLoop]: Abstraction has 30390 states and 134380 transitions. [2022-02-10 22:49:40,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 30390 states and 134380 transitions. [2022-02-10 22:49:41,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 22:49:41,044 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:41,044 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:41,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-10 22:49:41,044 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)] === [2022-02-10 22:49:41,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:41,045 INFO L85 PathProgramCache]: Analyzing trace with hash 252097369, now seen corresponding path program 3 times [2022-02-10 22:49:41,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:41,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669843027] [2022-02-10 22:49:41,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:41,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:41,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:41,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669843027] [2022-02-10 22:49:41,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669843027] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:41,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190766027] [2022-02-10 22:49:41,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:49:41,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:41,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:41,174 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) [2022-02-10 22:49:41,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 22:49:41,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:49:41,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:49:41,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:49:41,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:42,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:49:42,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190766027] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:42,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:49:42,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-02-10 22:49:42,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239526352] [2022-02-10 22:49:42,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:42,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:49:42,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:42,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:49:42,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-02-10 22:49:42,023 INFO L87 Difference]: Start difference. First operand 30390 states and 134380 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:42,427 INFO L93 Difference]: Finished difference Result 40602 states and 176542 transitions. [2022-02-10 22:49:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:49:42,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-02-10 22:49:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:42,569 INFO L225 Difference]: With dead ends: 40602 [2022-02-10 22:49:42,569 INFO L226 Difference]: Without dead ends: 40098 [2022-02-10 22:49:42,569 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-02-10 22:49:42,570 INFO L934 BasicCegarLoop]: 244 mSDtfsCounter, 479 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:42,570 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [479 Valid, 880 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:42,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40098 states. [2022-02-10 22:49:43,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40098 to 32364. [2022-02-10 22:49:43,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32364 states, 32363 states have (on average 4.422365046503724) internal successors, (143121), 32363 states have internal predecessors, (143121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:43,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32364 states to 32364 states and 143121 transitions. [2022-02-10 22:49:43,692 INFO L78 Accepts]: Start accepts. Automaton has 32364 states and 143121 transitions. Word has length 181 [2022-02-10 22:49:43,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:43,693 INFO L470 AbstractCegarLoop]: Abstraction has 32364 states and 143121 transitions. [2022-02-10 22:49:43,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:43,693 INFO L276 IsEmpty]: Start isEmpty. Operand 32364 states and 143121 transitions. [2022-02-10 22:49:43,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 22:49:43,778 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:43,778 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:43,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 22:49:43,987 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,SelfDestructingSolverStorable14 [2022-02-10 22:49:43,988 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)] === [2022-02-10 22:49:43,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:43,989 INFO L85 PathProgramCache]: Analyzing trace with hash -549754431, now seen corresponding path program 4 times [2022-02-10 22:49:43,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:43,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833560571] [2022-02-10 22:49:43,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:43,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:44,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:44,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833560571] [2022-02-10 22:49:44,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833560571] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:44,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:44,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:49:44,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467267271] [2022-02-10 22:49:44,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:44,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:49:44,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:44,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:49:44,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:49:44,226 INFO L87 Difference]: Start difference. First operand 32364 states and 143121 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:44,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:44,869 INFO L93 Difference]: Finished difference Result 37486 states and 162721 transitions. [2022-02-10 22:49:44,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:49:44,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-02-10 22:49:44,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:45,005 INFO L225 Difference]: With dead ends: 37486 [2022-02-10 22:49:45,005 INFO L226 Difference]: Without dead ends: 37234 [2022-02-10 22:49:45,005 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:49:45,006 INFO L934 BasicCegarLoop]: 242 mSDtfsCounter, 363 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:45,006 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 1037 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:45,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37234 states. [2022-02-10 22:49:45,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37234 to 32112. [2022-02-10 22:49:45,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32112 states, 32111 states have (on average 4.4229703216966145) internal successors, (142026), 32111 states have internal predecessors, (142026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:46,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32112 states to 32112 states and 142026 transitions. [2022-02-10 22:49:46,102 INFO L78 Accepts]: Start accepts. Automaton has 32112 states and 142026 transitions. Word has length 181 [2022-02-10 22:49:46,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:46,102 INFO L470 AbstractCegarLoop]: Abstraction has 32112 states and 142026 transitions. [2022-02-10 22:49:46,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:46,102 INFO L276 IsEmpty]: Start isEmpty. Operand 32112 states and 142026 transitions. [2022-02-10 22:49:46,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 22:49:46,188 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:46,188 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:46,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-10 22:49:46,188 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)] === [2022-02-10 22:49:46,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:46,188 INFO L85 PathProgramCache]: Analyzing trace with hash 785336179, now seen corresponding path program 5 times [2022-02-10 22:49:46,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:46,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180841401] [2022-02-10 22:49:46,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:46,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:46,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:46,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180841401] [2022-02-10 22:49:46,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180841401] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:46,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881914535] [2022-02-10 22:49:46,300 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:49:46,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:46,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:46,301 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) [2022-02-10 22:49:46,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 22:49:46,418 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:49:46,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:49:46,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-10 22:49:46,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:49:46,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:49:46,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881914535] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:46,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:49:46,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-02-10 22:49:46,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555904629] [2022-02-10 22:49:46,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:46,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:49:46,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:46,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:49:46,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-02-10 22:49:46,939 INFO L87 Difference]: Start difference. First operand 32112 states and 142026 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:47,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:47,559 INFO L93 Difference]: Finished difference Result 43592 states and 191684 transitions. [2022-02-10 22:49:47,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 22:49:47,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-02-10 22:49:47,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:47,717 INFO L225 Difference]: With dead ends: 43592 [2022-02-10 22:49:47,717 INFO L226 Difference]: Without dead ends: 41831 [2022-02-10 22:49:47,717 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:49:47,717 INFO L934 BasicCegarLoop]: 232 mSDtfsCounter, 459 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:47,718 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 934 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:47,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41831 states. [2022-02-10 22:49:48,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41831 to 24955. [2022-02-10 22:49:48,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24955 states, 24954 states have (on average 4.44241404183698) internal successors, (110856), 24954 states have internal predecessors, (110856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:48,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24955 states to 24955 states and 110856 transitions. [2022-02-10 22:49:48,541 INFO L78 Accepts]: Start accepts. Automaton has 24955 states and 110856 transitions. Word has length 181 [2022-02-10 22:49:48,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:48,541 INFO L470 AbstractCegarLoop]: Abstraction has 24955 states and 110856 transitions. [2022-02-10 22:49:48,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:48,541 INFO L276 IsEmpty]: Start isEmpty. Operand 24955 states and 110856 transitions. [2022-02-10 22:49:48,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:49:48,601 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:48,602 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:48,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-10 22:49:48,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-02-10 22:49:48,803 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)] === [2022-02-10 22:49:48,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:48,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1807237333, now seen corresponding path program 1 times [2022-02-10 22:49:48,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:48,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494531386] [2022-02-10 22:49:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:48,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:48,888 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:49:48,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:48,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494531386] [2022-02-10 22:49:48,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494531386] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:48,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634503861] [2022-02-10 22:49:48,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:48,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:48,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:48,890 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) [2022-02-10 22:49:48,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 22:49:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:49,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-10 22:49:49,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:49,490 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:49:49,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:49:49,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634503861] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:49,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:49:49,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2022-02-10 22:49:49,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711108230] [2022-02-10 22:49:49,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:49,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:49:49,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:49,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:49:49,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:49:49,491 INFO L87 Difference]: Start difference. First operand 24955 states and 110856 transitions. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:49,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:49,936 INFO L93 Difference]: Finished difference Result 55543 states and 250657 transitions. [2022-02-10 22:49:49,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:49:49,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:49:49,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:50,380 INFO L225 Difference]: With dead ends: 55543 [2022-02-10 22:49:50,380 INFO L226 Difference]: Without dead ends: 55543 [2022-02-10 22:49:50,380 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:49:50,380 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 202 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:50,381 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 961 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:50,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55543 states. [2022-02-10 22:49:51,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55543 to 33145. [2022-02-10 22:49:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33145 states, 33144 states have (on average 4.507301472363022) internal successors, (149390), 33144 states have internal predecessors, (149390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:51,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33145 states to 33145 states and 149390 transitions. [2022-02-10 22:49:51,566 INFO L78 Accepts]: Start accepts. Automaton has 33145 states and 149390 transitions. Word has length 191 [2022-02-10 22:49:51,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:51,566 INFO L470 AbstractCegarLoop]: Abstraction has 33145 states and 149390 transitions. [2022-02-10 22:49:51,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:51,566 INFO L276 IsEmpty]: Start isEmpty. Operand 33145 states and 149390 transitions. [2022-02-10 22:49:51,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:49:51,903 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:51,903 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:51,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-10 22:49:52,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:52,120 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)] === [2022-02-10 22:49:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:52,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1608854421, now seen corresponding path program 1 times [2022-02-10 22:49:52,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:52,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259868249] [2022-02-10 22:49:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:52,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:49:52,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:52,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259868249] [2022-02-10 22:49:52,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259868249] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:52,192 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:52,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:49:52,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328344108] [2022-02-10 22:49:52,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:52,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:49:52,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:52,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:49:52,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:49:52,195 INFO L87 Difference]: Start difference. First operand 33145 states and 149390 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:52,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:52,944 INFO L93 Difference]: Finished difference Result 57844 states and 259988 transitions. [2022-02-10 22:49:52,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:49:52,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:49:52,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:53,208 INFO L225 Difference]: With dead ends: 57844 [2022-02-10 22:49:53,208 INFO L226 Difference]: Without dead ends: 57844 [2022-02-10 22:49:53,208 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:49:53,208 INFO L934 BasicCegarLoop]: 251 mSDtfsCounter, 160 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:53,209 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 708 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:53,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57844 states. [2022-02-10 22:49:54,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57844 to 34807. [2022-02-10 22:49:54,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34807 states, 34806 states have (on average 4.49350686663219) internal successors, (156401), 34806 states have internal predecessors, (156401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34807 states to 34807 states and 156401 transitions. [2022-02-10 22:49:54,613 INFO L78 Accepts]: Start accepts. Automaton has 34807 states and 156401 transitions. Word has length 191 [2022-02-10 22:49:54,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:54,613 INFO L470 AbstractCegarLoop]: Abstraction has 34807 states and 156401 transitions. [2022-02-10 22:49:54,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:54,613 INFO L276 IsEmpty]: Start isEmpty. Operand 34807 states and 156401 transitions. [2022-02-10 22:49:54,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:49:54,698 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:54,699 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:54,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-10 22:49:54,699 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)] === [2022-02-10 22:49:54,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:54,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1603809585, now seen corresponding path program 2 times [2022-02-10 22:49:54,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:54,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781451036] [2022-02-10 22:49:54,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:54,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:49:54,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:54,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781451036] [2022-02-10 22:49:54,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781451036] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:49:54,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309982448] [2022-02-10 22:49:54,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:49:54,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:54,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:49:54,768 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:49:54,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 22:49:54,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:49:54,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:49:54,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-10 22:49:54,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:49:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:49:55,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:49:55,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309982448] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:55,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:49:55,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-02-10 22:49:55,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642980712] [2022-02-10 22:49:55,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:55,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:49:55,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:55,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:49:55,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:49:55,177 INFO L87 Difference]: Start difference. First operand 34807 states and 156401 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:55,773 INFO L93 Difference]: Finished difference Result 54991 states and 249676 transitions. [2022-02-10 22:49:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:49:55,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:49:55,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:56,013 INFO L225 Difference]: With dead ends: 54991 [2022-02-10 22:49:56,013 INFO L226 Difference]: Without dead ends: 54991 [2022-02-10 22:49:56,013 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:49:56,013 INFO L934 BasicCegarLoop]: 237 mSDtfsCounter, 185 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:56,014 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 639 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:49:56,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54991 states. [2022-02-10 22:49:56,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54991 to 27706. [2022-02-10 22:49:56,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27706 states, 27705 states have (on average 4.479155387114239) internal successors, (124095), 27705 states have internal predecessors, (124095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:57,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27706 states to 27706 states and 124095 transitions. [2022-02-10 22:49:57,186 INFO L78 Accepts]: Start accepts. Automaton has 27706 states and 124095 transitions. Word has length 191 [2022-02-10 22:49:57,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:57,187 INFO L470 AbstractCegarLoop]: Abstraction has 27706 states and 124095 transitions. [2022-02-10 22:49:57,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:57,187 INFO L276 IsEmpty]: Start isEmpty. Operand 27706 states and 124095 transitions. [2022-02-10 22:49:57,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:49:57,252 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:57,252 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:57,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-10 22:49:57,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:49:57,459 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)] === [2022-02-10 22:49:57,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:57,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1125789345, now seen corresponding path program 3 times [2022-02-10 22:49:57,460 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:57,460 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791380421] [2022-02-10 22:49:57,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:57,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:57,539 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:49:57,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:57,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791380421] [2022-02-10 22:49:57,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791380421] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:57,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:57,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:49:57,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668546018] [2022-02-10 22:49:57,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:57,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:49:57,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:57,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:49:57,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:49:57,540 INFO L87 Difference]: Start difference. First operand 27706 states and 124095 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:57,932 INFO L93 Difference]: Finished difference Result 40394 states and 182886 transitions. [2022-02-10 22:49:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:49:57,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:49:57,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:49:58,297 INFO L225 Difference]: With dead ends: 40394 [2022-02-10 22:49:58,297 INFO L226 Difference]: Without dead ends: 40394 [2022-02-10 22:49:58,299 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:49:58,300 INFO L934 BasicCegarLoop]: 254 mSDtfsCounter, 138 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:49:58,300 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 870 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:49:58,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40394 states. [2022-02-10 22:49:58,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40394 to 27656. [2022-02-10 22:49:59,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27656 states, 27655 states have (on average 4.483384559754113) internal successors, (123988), 27655 states have internal predecessors, (123988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27656 states to 27656 states and 123988 transitions. [2022-02-10 22:49:59,136 INFO L78 Accepts]: Start accepts. Automaton has 27656 states and 123988 transitions. Word has length 191 [2022-02-10 22:49:59,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:49:59,136 INFO L470 AbstractCegarLoop]: Abstraction has 27656 states and 123988 transitions. [2022-02-10 22:49:59,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:59,136 INFO L276 IsEmpty]: Start isEmpty. Operand 27656 states and 123988 transitions. [2022-02-10 22:49:59,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:49:59,199 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:49:59,199 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:49:59,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-10 22:49:59,199 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)] === [2022-02-10 22:49:59,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:49:59,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1172309895, now seen corresponding path program 4 times [2022-02-10 22:49:59,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:49:59,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361428949] [2022-02-10 22:49:59,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:49:59,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:49:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:49:59,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:49:59,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:49:59,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361428949] [2022-02-10 22:49:59,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361428949] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:49:59,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:49:59,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:49:59,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152022744] [2022-02-10 22:49:59,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:49:59,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:49:59,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:49:59,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:49:59,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:49:59,307 INFO L87 Difference]: Start difference. First operand 27656 states and 123988 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:49:59,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:49:59,882 INFO L93 Difference]: Finished difference Result 35679 states and 161136 transitions. [2022-02-10 22:49:59,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:49:59,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:49:59,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:00,022 INFO L225 Difference]: With dead ends: 35679 [2022-02-10 22:50:00,023 INFO L226 Difference]: Without dead ends: 34842 [2022-02-10 22:50:00,023 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:00,023 INFO L934 BasicCegarLoop]: 235 mSDtfsCounter, 150 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:00,023 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 579 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:00,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34842 states. [2022-02-10 22:50:00,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34842 to 31841. [2022-02-10 22:50:00,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31841 states, 31840 states have (on average 4.517179648241206) internal successors, (143827), 31840 states have internal predecessors, (143827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:00,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31841 states to 31841 states and 143827 transitions. [2022-02-10 22:50:00,914 INFO L78 Accepts]: Start accepts. Automaton has 31841 states and 143827 transitions. Word has length 191 [2022-02-10 22:50:00,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:00,914 INFO L470 AbstractCegarLoop]: Abstraction has 31841 states and 143827 transitions. [2022-02-10 22:50:00,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:00,914 INFO L276 IsEmpty]: Start isEmpty. Operand 31841 states and 143827 transitions. [2022-02-10 22:50:01,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:01,194 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:01,194 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:01,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-10 22:50:01,199 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)] === [2022-02-10 22:50:01,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:01,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2094986821, now seen corresponding path program 5 times [2022-02-10 22:50:01,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:01,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519340955] [2022-02-10 22:50:01,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:01,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:01,366 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:50:01,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:01,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519340955] [2022-02-10 22:50:01,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519340955] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:01,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586498475] [2022-02-10 22:50:01,367 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:50:01,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:01,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:50:01,368 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:50:01,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 22:50:01,482 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:50:01,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:50:01,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-10 22:50:01,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:50:01,914 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:01,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:50:01,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586498475] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:01,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:50:01,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-02-10 22:50:01,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109850090] [2022-02-10 22:50:01,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:01,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:50:01,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:01,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:50:01,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:50:01,915 INFO L87 Difference]: Start difference. First operand 31841 states and 143827 transitions. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:02,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:02,721 INFO L93 Difference]: Finished difference Result 67129 states and 304387 transitions. [2022-02-10 22:50:02,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:50:02,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:02,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:03,015 INFO L225 Difference]: With dead ends: 67129 [2022-02-10 22:50:03,015 INFO L226 Difference]: Without dead ends: 67129 [2022-02-10 22:50:03,015 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-02-10 22:50:03,016 INFO L934 BasicCegarLoop]: 275 mSDtfsCounter, 212 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:03,016 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 944 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:50:03,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67129 states. [2022-02-10 22:50:04,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67129 to 43421. [2022-02-10 22:50:04,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43421 states, 43420 states have (on average 4.64207738369415) internal successors, (201559), 43420 states have internal predecessors, (201559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:04,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43421 states to 43421 states and 201559 transitions. [2022-02-10 22:50:04,866 INFO L78 Accepts]: Start accepts. Automaton has 43421 states and 201559 transitions. Word has length 191 [2022-02-10 22:50:04,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:04,866 INFO L470 AbstractCegarLoop]: Abstraction has 43421 states and 201559 transitions. [2022-02-10 22:50:04,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:04,866 INFO L276 IsEmpty]: Start isEmpty. Operand 43421 states and 201559 transitions. [2022-02-10 22:50:05,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:05,004 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:05,004 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:05,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-10 22:50:05,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:05,205 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)] === [2022-02-10 22:50:05,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:05,205 INFO L85 PathProgramCache]: Analyzing trace with hash 619101395, now seen corresponding path program 6 times [2022-02-10 22:50:05,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:05,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801349760] [2022-02-10 22:50:05,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:05,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:05,300 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:05,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:05,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801349760] [2022-02-10 22:50:05,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801349760] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:05,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:05,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:05,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372213076] [2022-02-10 22:50:05,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:05,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:05,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:05,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:05,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:05,302 INFO L87 Difference]: Start difference. First operand 43421 states and 201559 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:06,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:06,167 INFO L93 Difference]: Finished difference Result 66111 states and 309334 transitions. [2022-02-10 22:50:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:06,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:06,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:06,476 INFO L225 Difference]: With dead ends: 66111 [2022-02-10 22:50:06,477 INFO L226 Difference]: Without dead ends: 66111 [2022-02-10 22:50:06,477 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:50:06,477 INFO L934 BasicCegarLoop]: 256 mSDtfsCounter, 142 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:06,477 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 849 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66111 states. [2022-02-10 22:50:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66111 to 31027. [2022-02-10 22:50:07,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31027 states, 31026 states have (on average 4.506542899503642) internal successors, (139820), 31026 states have internal predecessors, (139820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:07,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31027 states to 31027 states and 139820 transitions. [2022-02-10 22:50:07,859 INFO L78 Accepts]: Start accepts. Automaton has 31027 states and 139820 transitions. Word has length 191 [2022-02-10 22:50:07,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:07,859 INFO L470 AbstractCegarLoop]: Abstraction has 31027 states and 139820 transitions. [2022-02-10 22:50:07,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:07,860 INFO L276 IsEmpty]: Start isEmpty. Operand 31027 states and 139820 transitions. [2022-02-10 22:50:07,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:07,937 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:07,937 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:07,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-10 22:50:07,937 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)] === [2022-02-10 22:50:07,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:07,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1639049219, now seen corresponding path program 7 times [2022-02-10 22:50:07,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:07,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784262862] [2022-02-10 22:50:07,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:07,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:08,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:08,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784262862] [2022-02-10 22:50:08,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784262862] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:08,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:08,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:08,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012556157] [2022-02-10 22:50:08,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:08,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:08,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:08,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:08,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:08,036 INFO L87 Difference]: Start difference. First operand 31027 states and 139820 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:08,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:08,609 INFO L93 Difference]: Finished difference Result 48912 states and 218408 transitions. [2022-02-10 22:50:08,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:50:08,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:08,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:08,815 INFO L225 Difference]: With dead ends: 48912 [2022-02-10 22:50:08,815 INFO L226 Difference]: Without dead ends: 48075 [2022-02-10 22:50:08,816 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:08,816 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 114 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:08,816 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 623 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:08,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48075 states. [2022-02-10 22:50:09,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48075 to 30860. [2022-02-10 22:50:09,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30860 states, 30859 states have (on average 4.484461583330633) internal successors, (138386), 30859 states have internal predecessors, (138386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:09,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30860 states to 30860 states and 138386 transitions. [2022-02-10 22:50:09,974 INFO L78 Accepts]: Start accepts. Automaton has 30860 states and 138386 transitions. Word has length 191 [2022-02-10 22:50:09,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:09,974 INFO L470 AbstractCegarLoop]: Abstraction has 30860 states and 138386 transitions. [2022-02-10 22:50:09,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:09,974 INFO L276 IsEmpty]: Start isEmpty. Operand 30860 states and 138386 transitions. [2022-02-10 22:50:10,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:10,054 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:10,054 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:10,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-10 22:50:10,054 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)] === [2022-02-10 22:50:10,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:10,055 INFO L85 PathProgramCache]: Analyzing trace with hash -716372293, now seen corresponding path program 8 times [2022-02-10 22:50:10,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:10,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670807758] [2022-02-10 22:50:10,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:10,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:10,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:10,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670807758] [2022-02-10 22:50:10,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670807758] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:10,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:10,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:10,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538267055] [2022-02-10 22:50:10,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:10,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:10,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:10,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:10,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:10,146 INFO L87 Difference]: Start difference. First operand 30860 states and 138386 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:10,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:10,814 INFO L93 Difference]: Finished difference Result 56888 states and 255016 transitions. [2022-02-10 22:50:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:10,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:11,059 INFO L225 Difference]: With dead ends: 56888 [2022-02-10 22:50:11,059 INFO L226 Difference]: Without dead ends: 56888 [2022-02-10 22:50:11,059 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:50:11,060 INFO L934 BasicCegarLoop]: 244 mSDtfsCounter, 164 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:11,060 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 830 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:11,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56888 states. [2022-02-10 22:50:11,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56888 to 29476. [2022-02-10 22:50:12,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29476 states, 29475 states have (on average 4.4247667514843085) internal successors, (130420), 29475 states have internal predecessors, (130420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:12,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29476 states to 29476 states and 130420 transitions. [2022-02-10 22:50:12,294 INFO L78 Accepts]: Start accepts. Automaton has 29476 states and 130420 transitions. Word has length 191 [2022-02-10 22:50:12,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:12,294 INFO L470 AbstractCegarLoop]: Abstraction has 29476 states and 130420 transitions. [2022-02-10 22:50:12,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:12,294 INFO L276 IsEmpty]: Start isEmpty. Operand 29476 states and 130420 transitions. [2022-02-10 22:50:12,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:12,367 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:12,367 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:12,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-10 22:50:12,367 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:12,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:12,368 INFO L85 PathProgramCache]: Analyzing trace with hash -743899039, now seen corresponding path program 9 times [2022-02-10 22:50:12,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:12,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970958553] [2022-02-10 22:50:12,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:12,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:12,510 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:12,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:12,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970958553] [2022-02-10 22:50:12,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970958553] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:12,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665272547] [2022-02-10 22:50:12,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:50:12,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:12,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:50:12,512 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:50:12,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-10 22:50:12,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:50:12,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:50:12,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-10 22:50:12,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:50:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:12,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:50:12,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665272547] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:12,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:50:12,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-02-10 22:50:12,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426460803] [2022-02-10 22:50:12,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:12,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:50:12,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:12,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:50:12,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:50:12,948 INFO L87 Difference]: Start difference. First operand 29476 states and 130420 transitions. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:13,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:13,764 INFO L93 Difference]: Finished difference Result 65677 states and 290726 transitions. [2022-02-10 22:50:13,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:13,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:13,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:14,057 INFO L225 Difference]: With dead ends: 65677 [2022-02-10 22:50:14,058 INFO L226 Difference]: Without dead ends: 65047 [2022-02-10 22:50:14,058 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:50:14,058 INFO L934 BasicCegarLoop]: 280 mSDtfsCounter, 162 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:14,058 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 771 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:14,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65047 states. [2022-02-10 22:50:15,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65047 to 38296. [2022-02-10 22:50:15,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38296 states, 38295 states have (on average 4.493275884580233) internal successors, (172070), 38295 states have internal predecessors, (172070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38296 states to 38296 states and 172070 transitions. [2022-02-10 22:50:15,796 INFO L78 Accepts]: Start accepts. Automaton has 38296 states and 172070 transitions. Word has length 191 [2022-02-10 22:50:15,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:15,797 INFO L470 AbstractCegarLoop]: Abstraction has 38296 states and 172070 transitions. [2022-02-10 22:50:15,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:15,797 INFO L276 IsEmpty]: Start isEmpty. Operand 38296 states and 172070 transitions. [2022-02-10 22:50:15,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:15,932 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:15,932 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:15,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-10 22:50:16,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-02-10 22:50:16,133 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:16,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:16,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1104552797, now seen corresponding path program 10 times [2022-02-10 22:50:16,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:16,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682253099] [2022-02-10 22:50:16,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:16,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:16,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:16,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682253099] [2022-02-10 22:50:16,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682253099] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:16,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063096388] [2022-02-10 22:50:16,298 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:50:16,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:16,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:50:16,299 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:50:16,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-10 22:50:16,441 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:50:16,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:50:16,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-10 22:50:16,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:50:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:16,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:50:16,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063096388] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:16,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:50:16,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-02-10 22:50:16,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205213331] [2022-02-10 22:50:16,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:16,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:50:16,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:16,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:50:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:50:16,730 INFO L87 Difference]: Start difference. First operand 38296 states and 172070 transitions. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:17,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:17,305 INFO L93 Difference]: Finished difference Result 38008 states and 169961 transitions. [2022-02-10 22:50:17,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:17,306 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:17,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:17,440 INFO L225 Difference]: With dead ends: 38008 [2022-02-10 22:50:17,440 INFO L226 Difference]: Without dead ends: 35686 [2022-02-10 22:50:17,440 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-02-10 22:50:17,441 INFO L934 BasicCegarLoop]: 221 mSDtfsCounter, 91 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:17,441 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 866 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:17,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35686 states. [2022-02-10 22:50:18,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35686 to 35067. [2022-02-10 22:50:18,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35067 states, 35066 states have (on average 4.498659670335938) internal successors, (157750), 35066 states have internal predecessors, (157750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:18,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35067 states to 35067 states and 157750 transitions. [2022-02-10 22:50:18,315 INFO L78 Accepts]: Start accepts. Automaton has 35067 states and 157750 transitions. Word has length 191 [2022-02-10 22:50:18,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:18,315 INFO L470 AbstractCegarLoop]: Abstraction has 35067 states and 157750 transitions. [2022-02-10 22:50:18,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:18,315 INFO L276 IsEmpty]: Start isEmpty. Operand 35067 states and 157750 transitions. [2022-02-10 22:50:18,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:18,402 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:18,402 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:18,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-10 22:50:18,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-02-10 22:50:18,611 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:18,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:18,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1465224997, now seen corresponding path program 2 times [2022-02-10 22:50:18,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:18,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851147280] [2022-02-10 22:50:18,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:18,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:18,729 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:50:18,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:18,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851147280] [2022-02-10 22:50:18,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851147280] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:18,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414312258] [2022-02-10 22:50:18,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:50:18,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:18,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:50:18,740 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:50:18,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-10 22:50:19,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:50:19,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:50:19,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-10 22:50:19,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:50:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:50:19,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:50:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:50:19,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414312258] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:50:19,822 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:50:19,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 21 [2022-02-10 22:50:19,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200868697] [2022-02-10 22:50:19,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:50:19,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-10 22:50:19,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:19,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-10 22:50:19,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:50:19,824 INFO L87 Difference]: Start difference. First operand 35067 states and 157750 transitions. Second operand has 21 states, 21 states have (on average 17.761904761904763) internal successors, (373), 21 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:23,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:23,943 INFO L93 Difference]: Finished difference Result 103702 states and 464719 transitions. [2022-02-10 22:50:23,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-10 22:50:23,944 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 17.761904761904763) internal successors, (373), 21 states have internal predecessors, (373), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:23,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:24,672 INFO L225 Difference]: With dead ends: 103702 [2022-02-10 22:50:24,672 INFO L226 Difference]: Without dead ends: 103702 [2022-02-10 22:50:24,675 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 370 SyntacticMatches, 1 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3868 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2161, Invalid=8759, Unknown=0, NotChecked=0, Total=10920 [2022-02-10 22:50:24,678 INFO L934 BasicCegarLoop]: 455 mSDtfsCounter, 1347 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 4715 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:24,679 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1347 Valid, 4715 Invalid, 2578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-10 22:50:24,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103702 states. [2022-02-10 22:50:26,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103702 to 34681. [2022-02-10 22:50:26,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34681 states, 34680 states have (on average 4.494579008073818) internal successors, (155872), 34680 states have internal predecessors, (155872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:26,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34681 states to 34681 states and 155872 transitions. [2022-02-10 22:50:26,442 INFO L78 Accepts]: Start accepts. Automaton has 34681 states and 155872 transitions. Word has length 191 [2022-02-10 22:50:26,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:26,443 INFO L470 AbstractCegarLoop]: Abstraction has 34681 states and 155872 transitions. [2022-02-10 22:50:26,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 17.761904761904763) internal successors, (373), 21 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:26,443 INFO L276 IsEmpty]: Start isEmpty. Operand 34681 states and 155872 transitions. [2022-02-10 22:50:26,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:26,523 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:26,523 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:26,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-10 22:50:26,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-02-10 22:50:26,727 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:26,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:26,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1862057839, now seen corresponding path program 3 times [2022-02-10 22:50:26,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:26,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913222247] [2022-02-10 22:50:26,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:26,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:26,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:26,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913222247] [2022-02-10 22:50:26,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913222247] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:26,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483753689] [2022-02-10 22:50:26,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:50:26,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:26,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:50:26,892 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:50:26,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-10 22:50:27,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:50:27,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:50:27,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:50:27,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:50:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:27,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:50:28,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:28,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483753689] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:28,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 22:50:28,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 17 [2022-02-10 22:50:28,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538671607] [2022-02-10 22:50:28,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:28,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:50:28,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:28,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:50:28,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-02-10 22:50:28,172 INFO L87 Difference]: Start difference. First operand 34681 states and 155872 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:28,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:28,978 INFO L93 Difference]: Finished difference Result 72916 states and 317953 transitions. [2022-02-10 22:50:28,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:50:28,979 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:28,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:29,285 INFO L225 Difference]: With dead ends: 72916 [2022-02-10 22:50:29,285 INFO L226 Difference]: Without dead ends: 72916 [2022-02-10 22:50:29,286 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:50:29,286 INFO L934 BasicCegarLoop]: 268 mSDtfsCounter, 474 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:29,286 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 1044 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:50:29,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72916 states. [2022-02-10 22:50:30,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72916 to 34852. [2022-02-10 22:50:30,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34852 states, 34851 states have (on average 4.498264038334624) internal successors, (156769), 34851 states have internal predecessors, (156769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34852 states to 34852 states and 156769 transitions. [2022-02-10 22:50:30,774 INFO L78 Accepts]: Start accepts. Automaton has 34852 states and 156769 transitions. Word has length 191 [2022-02-10 22:50:30,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:30,774 INFO L470 AbstractCegarLoop]: Abstraction has 34852 states and 156769 transitions. [2022-02-10 22:50:30,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:30,774 INFO L276 IsEmpty]: Start isEmpty. Operand 34852 states and 156769 transitions. [2022-02-10 22:50:30,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:30,863 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:30,863 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:30,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-10 22:50:31,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:31,064 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:31,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:31,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1181755445, now seen corresponding path program 4 times [2022-02-10 22:50:31,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:31,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000405883] [2022-02-10 22:50:31,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:31,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:31,248 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:31,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:31,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000405883] [2022-02-10 22:50:31,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000405883] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:31,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:31,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:50:31,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093155460] [2022-02-10 22:50:31,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:31,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:50:31,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:31,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:50:31,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:50:31,250 INFO L87 Difference]: Start difference. First operand 34852 states and 156769 transitions. Second operand has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:31,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:31,803 INFO L93 Difference]: Finished difference Result 36266 states and 162630 transitions. [2022-02-10 22:50:31,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:50:31,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:31,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:31,941 INFO L225 Difference]: With dead ends: 36266 [2022-02-10 22:50:31,941 INFO L226 Difference]: Without dead ends: 36266 [2022-02-10 22:50:31,941 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:50:31,942 INFO L934 BasicCegarLoop]: 200 mSDtfsCounter, 215 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:31,942 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 878 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:31,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36266 states. [2022-02-10 22:50:32,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36266 to 34948. [2022-02-10 22:50:32,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34948 states, 34947 states have (on average 4.498955561278508) internal successors, (157225), 34947 states have internal predecessors, (157225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34948 states to 34948 states and 157225 transitions. [2022-02-10 22:50:33,078 INFO L78 Accepts]: Start accepts. Automaton has 34948 states and 157225 transitions. Word has length 191 [2022-02-10 22:50:33,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:33,078 INFO L470 AbstractCegarLoop]: Abstraction has 34948 states and 157225 transitions. [2022-02-10 22:50:33,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:33,079 INFO L276 IsEmpty]: Start isEmpty. Operand 34948 states and 157225 transitions. [2022-02-10 22:50:33,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:33,164 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:33,164 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:33,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-10 22:50:33,164 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:33,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:33,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1496921081, now seen corresponding path program 5 times [2022-02-10 22:50:33,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:33,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161501825] [2022-02-10 22:50:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:33,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:33,351 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:50:33,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:33,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161501825] [2022-02-10 22:50:33,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161501825] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:33,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:33,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-10 22:50:33,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967080771] [2022-02-10 22:50:33,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:33,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:50:33,352 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:33,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:50:33,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:50:33,353 INFO L87 Difference]: Start difference. First operand 34948 states and 157225 transitions. Second operand has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:33,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:33,785 INFO L93 Difference]: Finished difference Result 36929 states and 164979 transitions. [2022-02-10 22:50:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:50:33,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:33,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:34,133 INFO L225 Difference]: With dead ends: 36929 [2022-02-10 22:50:34,133 INFO L226 Difference]: Without dead ends: 36929 [2022-02-10 22:50:34,133 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:50:34,134 INFO L934 BasicCegarLoop]: 207 mSDtfsCounter, 240 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:34,134 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 972 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:34,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36929 states. [2022-02-10 22:50:34,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36929 to 35025. [2022-02-10 22:50:34,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35025 states, 35024 states have (on average 4.497116263133851) internal successors, (157507), 35024 states have internal predecessors, (157507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35025 states to 35025 states and 157507 transitions. [2022-02-10 22:50:35,012 INFO L78 Accepts]: Start accepts. Automaton has 35025 states and 157507 transitions. Word has length 191 [2022-02-10 22:50:35,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:35,013 INFO L470 AbstractCegarLoop]: Abstraction has 35025 states and 157507 transitions. [2022-02-10 22:50:35,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 35025 states and 157507 transitions. [2022-02-10 22:50:35,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:35,093 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:35,093 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:35,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-10 22:50:35,093 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:35,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:35,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1375315421, now seen corresponding path program 6 times [2022-02-10 22:50:35,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:35,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643084868] [2022-02-10 22:50:35,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:35,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:35,195 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:35,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:35,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643084868] [2022-02-10 22:50:35,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643084868] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:35,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:35,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:35,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336248792] [2022-02-10 22:50:35,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:35,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:35,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:35,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:35,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:35,197 INFO L87 Difference]: Start difference. First operand 35025 states and 157507 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:35,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:35,793 INFO L93 Difference]: Finished difference Result 44893 states and 202327 transitions. [2022-02-10 22:50:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:50:35,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:35,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:35,964 INFO L225 Difference]: With dead ends: 44893 [2022-02-10 22:50:35,965 INFO L226 Difference]: Without dead ends: 43903 [2022-02-10 22:50:35,965 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:35,965 INFO L934 BasicCegarLoop]: 248 mSDtfsCounter, 128 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:35,965 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 473 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:36,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43903 states. [2022-02-10 22:50:37,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43903 to 40155. [2022-02-10 22:50:37,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40155 states, 40154 states have (on average 4.514817950889077) internal successors, (181288), 40154 states have internal predecessors, (181288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:37,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40155 states to 40155 states and 181288 transitions. [2022-02-10 22:50:37,283 INFO L78 Accepts]: Start accepts. Automaton has 40155 states and 181288 transitions. Word has length 191 [2022-02-10 22:50:37,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:37,284 INFO L470 AbstractCegarLoop]: Abstraction has 40155 states and 181288 transitions. [2022-02-10 22:50:37,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:37,284 INFO L276 IsEmpty]: Start isEmpty. Operand 40155 states and 181288 transitions. [2022-02-10 22:50:37,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:37,390 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:37,390 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:37,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-10 22:50:37,390 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:37,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:37,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1894821393, now seen corresponding path program 7 times [2022-02-10 22:50:37,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:37,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107185731] [2022-02-10 22:50:37,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:37,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:37,484 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:37,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:37,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107185731] [2022-02-10 22:50:37,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107185731] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:37,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:37,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:37,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811432232] [2022-02-10 22:50:37,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:37,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:37,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:37,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:37,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:37,486 INFO L87 Difference]: Start difference. First operand 40155 states and 181288 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:38,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:38,212 INFO L93 Difference]: Finished difference Result 55095 states and 248109 transitions. [2022-02-10 22:50:38,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:38,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:38,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:38,421 INFO L225 Difference]: With dead ends: 55095 [2022-02-10 22:50:38,421 INFO L226 Difference]: Without dead ends: 55095 [2022-02-10 22:50:38,421 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:50:38,422 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 146 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:38,422 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 869 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:50:38,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55095 states. [2022-02-10 22:50:39,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55095 to 36481. [2022-02-10 22:50:39,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36481 states, 36480 states have (on average 4.511348684210526) internal successors, (164574), 36480 states have internal predecessors, (164574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:39,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36481 states to 36481 states and 164574 transitions. [2022-02-10 22:50:39,688 INFO L78 Accepts]: Start accepts. Automaton has 36481 states and 164574 transitions. Word has length 191 [2022-02-10 22:50:39,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:39,688 INFO L470 AbstractCegarLoop]: Abstraction has 36481 states and 164574 transitions. [2022-02-10 22:50:39,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:39,688 INFO L276 IsEmpty]: Start isEmpty. Operand 36481 states and 164574 transitions. [2022-02-10 22:50:39,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:39,774 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:39,774 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:39,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-10 22:50:39,774 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:39,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:39,775 INFO L85 PathProgramCache]: Analyzing trace with hash 909527997, now seen corresponding path program 8 times [2022-02-10 22:50:39,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:39,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082447502] [2022-02-10 22:50:39,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:39,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:40,236 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:50:40,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:40,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082447502] [2022-02-10 22:50:40,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082447502] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:40,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:40,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-10 22:50:40,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096692178] [2022-02-10 22:50:40,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:40,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:50:40,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:40,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:50:40,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:50:40,238 INFO L87 Difference]: Start difference. First operand 36481 states and 164574 transitions. Second operand has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:40,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:40,903 INFO L93 Difference]: Finished difference Result 44967 states and 199276 transitions. [2022-02-10 22:50:40,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:50:40,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:40,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:41,081 INFO L225 Difference]: With dead ends: 44967 [2022-02-10 22:50:41,081 INFO L226 Difference]: Without dead ends: 44967 [2022-02-10 22:50:41,082 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-02-10 22:50:41,082 INFO L934 BasicCegarLoop]: 229 mSDtfsCounter, 350 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:41,082 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1211 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:50:41,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44967 states. [2022-02-10 22:50:42,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44967 to 36940. [2022-02-10 22:50:42,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36940 states, 36939 states have (on average 4.5037764963859335) internal successors, (166365), 36939 states have internal predecessors, (166365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36940 states to 36940 states and 166365 transitions. [2022-02-10 22:50:42,356 INFO L78 Accepts]: Start accepts. Automaton has 36940 states and 166365 transitions. Word has length 191 [2022-02-10 22:50:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:42,357 INFO L470 AbstractCegarLoop]: Abstraction has 36940 states and 166365 transitions. [2022-02-10 22:50:42,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 36940 states and 166365 transitions. [2022-02-10 22:50:42,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:42,444 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:42,444 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:42,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-10 22:50:42,444 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:42,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:42,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1968351519, now seen corresponding path program 9 times [2022-02-10 22:50:42,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:42,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256321536] [2022-02-10 22:50:42,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:42,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:42,858 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:42,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:42,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256321536] [2022-02-10 22:50:42,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256321536] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:42,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:42,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:50:42,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181703045] [2022-02-10 22:50:42,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:42,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:50:42,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:42,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:50:42,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:50:42,860 INFO L87 Difference]: Start difference. First operand 36940 states and 166365 transitions. Second operand has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:43,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:43,302 INFO L93 Difference]: Finished difference Result 38308 states and 171746 transitions. [2022-02-10 22:50:43,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:50:43,303 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:43,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:43,451 INFO L225 Difference]: With dead ends: 38308 [2022-02-10 22:50:43,452 INFO L226 Difference]: Without dead ends: 38308 [2022-02-10 22:50:43,452 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:50:43,452 INFO L934 BasicCegarLoop]: 214 mSDtfsCounter, 254 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:43,452 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 809 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:43,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38308 states. [2022-02-10 22:50:44,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38308 to 37138. [2022-02-10 22:50:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37138 states, 37137 states have (on average 4.494951126908474) internal successors, (166929), 37137 states have internal predecessors, (166929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:44,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37138 states to 37138 states and 166929 transitions. [2022-02-10 22:50:44,707 INFO L78 Accepts]: Start accepts. Automaton has 37138 states and 166929 transitions. Word has length 191 [2022-02-10 22:50:44,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:44,707 INFO L470 AbstractCegarLoop]: Abstraction has 37138 states and 166929 transitions. [2022-02-10 22:50:44,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:44,707 INFO L276 IsEmpty]: Start isEmpty. Operand 37138 states and 166929 transitions. [2022-02-10 22:50:44,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:44,805 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:44,805 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:44,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-10 22:50:44,805 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:44,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:44,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1789951397, now seen corresponding path program 10 times [2022-02-10 22:50:44,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:44,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591362409] [2022-02-10 22:50:44,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:44,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:44,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:44,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591362409] [2022-02-10 22:50:44,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591362409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:44,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:44,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:44,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867306875] [2022-02-10 22:50:44,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:44,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:44,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:44,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:44,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:44,904 INFO L87 Difference]: Start difference. First operand 37138 states and 166929 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:45,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:45,549 INFO L93 Difference]: Finished difference Result 56803 states and 250861 transitions. [2022-02-10 22:50:45,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:50:45,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:45,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:45,793 INFO L225 Difference]: With dead ends: 56803 [2022-02-10 22:50:45,793 INFO L226 Difference]: Without dead ends: 55711 [2022-02-10 22:50:45,793 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:50:45,794 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 155 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:45,794 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 639 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:45,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55711 states. [2022-02-10 22:50:46,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55711 to 40360. [2022-02-10 22:50:47,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40360 states, 40359 states have (on average 4.464406947644887) internal successors, (180179), 40359 states have internal predecessors, (180179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:47,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40360 states to 40360 states and 180179 transitions. [2022-02-10 22:50:47,165 INFO L78 Accepts]: Start accepts. Automaton has 40360 states and 180179 transitions. Word has length 191 [2022-02-10 22:50:47,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:47,165 INFO L470 AbstractCegarLoop]: Abstraction has 40360 states and 180179 transitions. [2022-02-10 22:50:47,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:47,165 INFO L276 IsEmpty]: Start isEmpty. Operand 40360 states and 180179 transitions. [2022-02-10 22:50:47,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:47,266 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:47,266 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:47,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-10 22:50:47,266 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:47,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:47,266 INFO L85 PathProgramCache]: Analyzing trace with hash -96898587, now seen corresponding path program 11 times [2022-02-10 22:50:47,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:47,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167955371] [2022-02-10 22:50:47,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:47,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:47,607 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:47,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:47,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167955371] [2022-02-10 22:50:47,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167955371] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:47,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:47,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:47,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366287838] [2022-02-10 22:50:47,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:47,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:47,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:47,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:47,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:47,609 INFO L87 Difference]: Start difference. First operand 40360 states and 180179 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:48,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:48,247 INFO L93 Difference]: Finished difference Result 64945 states and 285594 transitions. [2022-02-10 22:50:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:50:48,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:48,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:48,965 INFO L225 Difference]: With dead ends: 64945 [2022-02-10 22:50:48,966 INFO L226 Difference]: Without dead ends: 64945 [2022-02-10 22:50:48,966 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:50:48,969 INFO L934 BasicCegarLoop]: 253 mSDtfsCounter, 193 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:48,970 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 531 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:49,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64945 states. [2022-02-10 22:50:50,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64945 to 34387. [2022-02-10 22:50:50,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34387 states, 34386 states have (on average 4.401180713080905) internal successors, (151339), 34386 states have internal predecessors, (151339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:50,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34387 states to 34387 states and 151339 transitions. [2022-02-10 22:50:50,440 INFO L78 Accepts]: Start accepts. Automaton has 34387 states and 151339 transitions. Word has length 191 [2022-02-10 22:50:50,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:50,440 INFO L470 AbstractCegarLoop]: Abstraction has 34387 states and 151339 transitions. [2022-02-10 22:50:50,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:50,441 INFO L276 IsEmpty]: Start isEmpty. Operand 34387 states and 151339 transitions. [2022-02-10 22:50:50,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-10 22:50:50,542 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:50,542 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:50,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-10 22:50:50,542 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:50,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:50,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1467285865, now seen corresponding path program 12 times [2022-02-10 22:50:50,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:50,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578381096] [2022-02-10 22:50:50,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:50,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:50,611 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-10 22:50:50,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:50,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578381096] [2022-02-10 22:50:50,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578381096] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:50:50,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:50:50,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:50:50,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671147818] [2022-02-10 22:50:50,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:50:50,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:50:50,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:50:50,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:50:50,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:50:50,612 INFO L87 Difference]: Start difference. First operand 34387 states and 151339 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:50,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:50:50,930 INFO L93 Difference]: Finished difference Result 34018 states and 145834 transitions. [2022-02-10 22:50:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:50:50,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-02-10 22:50:50,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:50:51,041 INFO L225 Difference]: With dead ends: 34018 [2022-02-10 22:50:51,041 INFO L226 Difference]: Without dead ends: 31834 [2022-02-10 22:50:51,042 INFO L933 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 [2022-02-10 22:50:51,042 INFO L934 BasicCegarLoop]: 260 mSDtfsCounter, 138 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:50:51,042 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 630 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:50:51,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31834 states. [2022-02-10 22:50:51,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31834 to 26363. [2022-02-10 22:50:51,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26363 states, 26362 states have (on average 4.399552386010166) internal successors, (115981), 26362 states have internal predecessors, (115981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:52,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26363 states to 26363 states and 115981 transitions. [2022-02-10 22:50:52,119 INFO L78 Accepts]: Start accepts. Automaton has 26363 states and 115981 transitions. Word has length 191 [2022-02-10 22:50:52,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:50:52,120 INFO L470 AbstractCegarLoop]: Abstraction has 26363 states and 115981 transitions. [2022-02-10 22:50:52,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:50:52,120 INFO L276 IsEmpty]: Start isEmpty. Operand 26363 states and 115981 transitions. [2022-02-10 22:50:52,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-02-10 22:50:52,184 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:50:52,184 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:50:52,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-10 22:50:52,184 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:50:52,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:50:52,184 INFO L85 PathProgramCache]: Analyzing trace with hash -299265932, now seen corresponding path program 1 times [2022-02-10 22:50:52,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:50:52,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702369030] [2022-02-10 22:50:52,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:52,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:50:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:55,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:50:55,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:50:55,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702369030] [2022-02-10 22:50:55,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702369030] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:50:55,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244789342] [2022-02-10 22:50:55,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:50:55,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:50:55,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:50:55,665 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:50:55,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-10 22:50:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:50:55,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 114 conjunts are in the unsatisfiable core [2022-02-10 22:50:55,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:50:55,922 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:50:55,984 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-02-10 22:50:55,984 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-02-10 22:50:56,066 INFO L353 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-02-10 22:50:56,067 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2022-02-10 22:50:57,149 INFO L353 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2022-02-10 22:50:57,149 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 21 treesize of output 25 [2022-02-10 22:50:59,330 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-10 22:51:00,361 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:51:01,000 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:51:01,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:51:01,700 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-02-10 22:51:01,700 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 33 [2022-02-10 22:51:02,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:51:02,028 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-02-10 22:51:02,028 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 33 [2022-02-10 22:51:03,040 INFO L353 Elim1Store]: treesize reduction 31, result has 41.5 percent of original size [2022-02-10 22:51:03,040 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 34 [2022-02-10 22:51:03,071 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:51:03,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:51:05,683 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:51:05,684 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 90 [2022-02-10 22:51:05,736 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:51:05,736 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58072 treesize of output 56084 [2022-02-10 22:51:05,899 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:51:05,900 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55798 treesize of output 43526 [2022-02-10 22:51:06,051 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:51:06,051 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43510 treesize of output 37382 [2022-02-10 22:51:06,228 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:51:06,229 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37544 treesize of output 34496 [2022-02-10 22:51:06,411 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:51:06,412 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34448 treesize of output 32972