/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/parallel-misc-3-extended.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 00:47:00,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 00:47:00,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 00:47:00,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 00:47:00,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 00:47:00,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 00:47:00,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 00:47:00,306 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-09 00:47:00,327 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 00:47:00,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 00:47:00,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 00:47:00,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 00:47:00,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 00:47:00,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 00:47:00,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 00:47:00,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 00:47:00,329 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 00:47:00,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 00:47:00,329 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 00:47:00,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 00:47:00,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 00:47:00,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 00:47:00,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 00:47:00,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 00:47:00,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 00:47:00,330 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 00:47:00,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 00:47:00,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 00:47:00,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 00:47:00,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 00:47:00,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 00:47:00,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 00:47:00,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 00:47:00,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 00:47:00,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 00:47:00,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 00:47:00,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 00:47:00,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 00:47:00,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 00:47:00,331 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 00:47:00,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 00:47:00,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 00:47:00,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 00:47:00,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 00:47:00,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 00:47:00,523 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 00:47:00,524 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 00:47:00,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2022-02-09 00:47:00,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e9b554f2/40f59961dd6f45f2be89464c5f67fcd8/FLAG90103a2fb [2022-02-09 00:47:00,901 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 00:47:00,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2022-02-09 00:47:00,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e9b554f2/40f59961dd6f45f2be89464c5f67fcd8/FLAG90103a2fb [2022-02-09 00:47:01,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e9b554f2/40f59961dd6f45f2be89464c5f67fcd8 [2022-02-09 00:47:01,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 00:47:01,338 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 00:47:01,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 00:47:01,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 00:47:01,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 00:47:01,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b229cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01, skipping insertion in model container [2022-02-09 00:47:01,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 00:47:01,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 00:47:01,520 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/parallel-misc-3-extended.wvr.c[2856,2869] [2022-02-09 00:47:01,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 00:47:01,529 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 00:47:01,544 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/parallel-misc-3-extended.wvr.c[2856,2869] [2022-02-09 00:47:01,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 00:47:01,554 INFO L208 MainTranslator]: Completed translation [2022-02-09 00:47:01,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01 WrapperNode [2022-02-09 00:47:01,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 00:47:01,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 00:47:01,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 00:47:01,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 00:47:01,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,582 INFO L137 Inliner]: procedures = 22, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-02-09 00:47:01,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 00:47:01,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 00:47:01,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 00:47:01,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 00:47:01,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 00:47:01,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 00:47:01,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 00:47:01,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 00:47:01,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01" (1/1) ... [2022-02-09 00:47:01,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 00:47:01,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:47:01,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 00:47:01,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 00:47:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 00:47:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 00:47:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 00:47:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 00:47:01,705 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 00:47:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 00:47:01,705 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 00:47:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 00:47:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 00:47:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 00:47:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-09 00:47:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-09 00:47:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 00:47:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 00:47:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 00:47:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 00:47:01,724 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 00:47:01,809 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 00:47:01,810 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 00:47:02,059 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 00:47:02,077 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 00:47:02,077 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-09 00:47:02,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:47:02 BoogieIcfgContainer [2022-02-09 00:47:02,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 00:47:02,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 00:47:02,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 00:47:02,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 00:47:02,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 12:47:01" (1/3) ... [2022-02-09 00:47:02,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14913be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:47:02, skipping insertion in model container [2022-02-09 00:47:02,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:47:01" (2/3) ... [2022-02-09 00:47:02,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14913be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:47:02, skipping insertion in model container [2022-02-09 00:47:02,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:47:02" (3/3) ... [2022-02-09 00:47:02,096 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2022-02-09 00:47:02,100 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 00:47:02,101 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 00:47:02,101 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 00:47:02,101 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 00:47:02,163 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,167 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,167 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,167 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,167 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,167 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,168 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,168 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,169 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,169 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,169 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,169 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,170 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,170 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,170 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,170 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,170 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,171 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,171 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,171 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,172 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,172 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,173 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,187 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,200 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,200 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,200 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:47:02,204 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-09 00:47:02,283 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 00:47:02,289 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 00:47:02,289 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-09 00:47:02,304 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 123 places, 129 transitions, 282 flow [2022-02-09 00:47:02,753 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10468 states, 10467 states have (on average 4.478742715200153) internal successors, (46879), 10467 states have internal predecessors, (46879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:02,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 10468 states, 10467 states have (on average 4.478742715200153) internal successors, (46879), 10467 states have internal predecessors, (46879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:02,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-09 00:47:02,916 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:47:02,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:47:02,918 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:47:02,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:47:02,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1493028026, now seen corresponding path program 1 times [2022-02-09 00:47:02,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:47:02,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537834756] [2022-02-09 00:47:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:47:02,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:47:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:47:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:47:03,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:47:03,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537834756] [2022-02-09 00:47:03,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537834756] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:47:03,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:47:03,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 00:47:03,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620330150] [2022-02-09 00:47:03,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:47:03,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 00:47:03,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:47:03,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 00:47:03,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 00:47:03,207 INFO L87 Difference]: Start difference. First operand has 10468 states, 10467 states have (on average 4.478742715200153) internal successors, (46879), 10467 states have internal predecessors, (46879), 0 states have call successors, (0), 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 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:47:03,488 INFO L93 Difference]: Finished difference Result 10468 states and 44607 transitions. [2022-02-09 00:47:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 00:47:03,491 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-02-09 00:47:03,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:47:03,583 INFO L225 Difference]: With dead ends: 10468 [2022-02-09 00:47:03,585 INFO L226 Difference]: Without dead ends: 10467 [2022-02-09 00:47:03,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 00:47:03,591 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:47:03,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:47:03,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2022-02-09 00:47:04,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 10467. [2022-02-09 00:47:04,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10467 states, 10466 states have (on average 4.261991209631186) internal successors, (44606), 10466 states have internal predecessors, (44606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:04,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10467 states to 10467 states and 44606 transitions. [2022-02-09 00:47:04,259 INFO L78 Accepts]: Start accepts. Automaton has 10467 states and 44606 transitions. Word has length 71 [2022-02-09 00:47:04,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:47:04,261 INFO L470 AbstractCegarLoop]: Abstraction has 10467 states and 44606 transitions. [2022-02-09 00:47:04,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:04,262 INFO L276 IsEmpty]: Start isEmpty. Operand 10467 states and 44606 transitions. [2022-02-09 00:47:04,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-09 00:47:04,409 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:47:04,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:47:04,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 00:47:04,410 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:47:04,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:47:04,416 INFO L85 PathProgramCache]: Analyzing trace with hash 780047271, now seen corresponding path program 1 times [2022-02-09 00:47:04,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:47:04,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640510028] [2022-02-09 00:47:04,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:47:04,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:47:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:47:04,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:47:04,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:47:04,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640510028] [2022-02-09 00:47:04,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640510028] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:47:04,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:47:04,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 00:47:04,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188631539] [2022-02-09 00:47:04,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:47:04,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 00:47:04,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:47:04,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 00:47:04,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 00:47:04,574 INFO L87 Difference]: Start difference. First operand 10467 states and 44606 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:04,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:47:04,883 INFO L93 Difference]: Finished difference Result 18067 states and 77996 transitions. [2022-02-09 00:47:04,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 00:47:04,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-02-09 00:47:04,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:47:05,105 INFO L225 Difference]: With dead ends: 18067 [2022-02-09 00:47:05,105 INFO L226 Difference]: Without dead ends: 18067 [2022-02-09 00:47:05,108 INFO L932 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 [2022-02-09 00:47:05,109 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 59 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:47:05,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 193 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:47:05,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18067 states. [2022-02-09 00:47:05,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18067 to 16547. [2022-02-09 00:47:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16547 states, 16546 states have (on average 4.337846005076756) internal successors, (71774), 16546 states have internal predecessors, (71774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:06,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16547 states to 16547 states and 71774 transitions. [2022-02-09 00:47:06,121 INFO L78 Accepts]: Start accepts. Automaton has 16547 states and 71774 transitions. Word has length 71 [2022-02-09 00:47:06,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:47:06,123 INFO L470 AbstractCegarLoop]: Abstraction has 16547 states and 71774 transitions. [2022-02-09 00:47:06,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:06,124 INFO L276 IsEmpty]: Start isEmpty. Operand 16547 states and 71774 transitions. [2022-02-09 00:47:06,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-02-09 00:47:06,195 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:47:06,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:47:06,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 00:47:06,196 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:47:06,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:47:06,196 INFO L85 PathProgramCache]: Analyzing trace with hash -631466113, now seen corresponding path program 1 times [2022-02-09 00:47:06,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:47:06,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363502545] [2022-02-09 00:47:06,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:47:06,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:47:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:47:06,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:47:06,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:47:06,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363502545] [2022-02-09 00:47:06,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363502545] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:47:06,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:47:06,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 00:47:06,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218415825] [2022-02-09 00:47:06,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:47:06,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 00:47:06,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:47:06,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 00:47:06,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 00:47:06,318 INFO L87 Difference]: Start difference. First operand 16547 states and 71774 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:47:06,655 INFO L93 Difference]: Finished difference Result 29117 states and 127535 transitions. [2022-02-09 00:47:06,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 00:47:06,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-02-09 00:47:06,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:47:07,029 INFO L225 Difference]: With dead ends: 29117 [2022-02-09 00:47:07,029 INFO L226 Difference]: Without dead ends: 29117 [2022-02-09 00:47:07,031 INFO L932 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 [2022-02-09 00:47:07,034 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 43 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:47:07,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 189 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:47:07,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29117 states. [2022-02-09 00:47:07,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29117 to 26603. [2022-02-09 00:47:07,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26603 states, 26602 states have (on average 4.403315540184948) internal successors, (117137), 26602 states have internal predecessors, (117137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:08,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26603 states to 26603 states and 117137 transitions. [2022-02-09 00:47:08,219 INFO L78 Accepts]: Start accepts. Automaton has 26603 states and 117137 transitions. Word has length 79 [2022-02-09 00:47:08,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:47:08,219 INFO L470 AbstractCegarLoop]: Abstraction has 26603 states and 117137 transitions. [2022-02-09 00:47:08,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:08,219 INFO L276 IsEmpty]: Start isEmpty. Operand 26603 states and 117137 transitions. [2022-02-09 00:47:08,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-09 00:47:08,321 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:47:08,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:47:08,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-09 00:47:08,322 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:47:08,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:47:08,322 INFO L85 PathProgramCache]: Analyzing trace with hash -2139630789, now seen corresponding path program 1 times [2022-02-09 00:47:08,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:47:08,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742145786] [2022-02-09 00:47:08,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:47:08,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:47:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:47:08,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:47:08,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:47:08,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742145786] [2022-02-09 00:47:08,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742145786] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:47:08,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:47:08,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 00:47:08,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804666535] [2022-02-09 00:47:08,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:47:08,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 00:47:08,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:47:08,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 00:47:08,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 00:47:08,446 INFO L87 Difference]: Start difference. First operand 26603 states and 117137 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:09,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:47:09,198 INFO L93 Difference]: Finished difference Result 44903 states and 200987 transitions. [2022-02-09 00:47:09,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 00:47:09,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-02-09 00:47:09,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:47:09,518 INFO L225 Difference]: With dead ends: 44903 [2022-02-09 00:47:09,518 INFO L226 Difference]: Without dead ends: 44903 [2022-02-09 00:47:09,518 INFO L932 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 [2022-02-09 00:47:09,519 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 29 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:47:09,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 185 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:47:09,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44903 states. [2022-02-09 00:47:11,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44903 to 41243. [2022-02-09 00:47:11,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41243 states, 41242 states have (on average 4.4933562872799575) internal successors, (185315), 41242 states have internal predecessors, (185315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:11,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41243 states to 41243 states and 185315 transitions. [2022-02-09 00:47:11,431 INFO L78 Accepts]: Start accepts. Automaton has 41243 states and 185315 transitions. Word has length 87 [2022-02-09 00:47:11,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:47:11,432 INFO L470 AbstractCegarLoop]: Abstraction has 41243 states and 185315 transitions. [2022-02-09 00:47:11,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:11,432 INFO L276 IsEmpty]: Start isEmpty. Operand 41243 states and 185315 transitions. [2022-02-09 00:47:11,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-02-09 00:47:11,907 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:47:11,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:47:11,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-09 00:47:11,908 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:47:11,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:47:11,909 INFO L85 PathProgramCache]: Analyzing trace with hash 230424881, now seen corresponding path program 1 times [2022-02-09 00:47:11,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:47:11,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210987745] [2022-02-09 00:47:11,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:47:11,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:47:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:47:12,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:47:12,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:47:12,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210987745] [2022-02-09 00:47:12,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210987745] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:47:12,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:47:12,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 00:47:12,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297782200] [2022-02-09 00:47:12,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:47:12,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 00:47:12,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:47:12,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 00:47:12,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 00:47:12,074 INFO L87 Difference]: Start difference. First operand 41243 states and 185315 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:12,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:47:12,750 INFO L93 Difference]: Finished difference Result 63494 states and 271148 transitions. [2022-02-09 00:47:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 00:47:12,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-02-09 00:47:12,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:47:13,171 INFO L225 Difference]: With dead ends: 63494 [2022-02-09 00:47:13,171 INFO L226 Difference]: Without dead ends: 63494 [2022-02-09 00:47:13,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 00:47:13,172 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 162 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:47:13,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 323 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:47:13,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63494 states. [2022-02-09 00:47:15,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63494 to 56411. [2022-02-09 00:47:15,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56411 states, 56410 states have (on average 4.325811026413756) internal successors, (244019), 56410 states have internal predecessors, (244019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:16,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56411 states to 56411 states and 244019 transitions. [2022-02-09 00:47:16,176 INFO L78 Accepts]: Start accepts. Automaton has 56411 states and 244019 transitions. Word has length 95 [2022-02-09 00:47:16,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:47:16,177 INFO L470 AbstractCegarLoop]: Abstraction has 56411 states and 244019 transitions. [2022-02-09 00:47:16,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:16,177 INFO L276 IsEmpty]: Start isEmpty. Operand 56411 states and 244019 transitions. [2022-02-09 00:47:16,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-09 00:47:16,452 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:47:16,452 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:47:16,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 00:47:16,452 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:47:16,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:47:16,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1240907378, now seen corresponding path program 1 times [2022-02-09 00:47:16,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:47:16,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228239181] [2022-02-09 00:47:16,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:47:16,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:47:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:47:16,532 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-09 00:47:16,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:47:16,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228239181] [2022-02-09 00:47:16,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228239181] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:47:16,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:47:16,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 00:47:16,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477250894] [2022-02-09 00:47:16,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:47:16,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 00:47:16,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:47:16,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 00:47:16,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 00:47:16,534 INFO L87 Difference]: Start difference. First operand 56411 states and 244019 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:17,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:47:17,647 INFO L93 Difference]: Finished difference Result 85886 states and 352610 transitions. [2022-02-09 00:47:17,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 00:47:17,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-02-09 00:47:17,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:47:18,500 INFO L225 Difference]: With dead ends: 85886 [2022-02-09 00:47:18,501 INFO L226 Difference]: Without dead ends: 85886 [2022-02-09 00:47:18,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 00:47:18,502 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 153 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:47:18,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 310 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:47:18,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85886 states. [2022-02-09 00:47:20,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85886 to 77795. [2022-02-09 00:47:20,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77795 states, 77794 states have (on average 4.1473635498881665) internal successors, (322640), 77794 states have internal predecessors, (322640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:21,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77795 states to 77795 states and 322640 transitions. [2022-02-09 00:47:21,667 INFO L78 Accepts]: Start accepts. Automaton has 77795 states and 322640 transitions. Word has length 100 [2022-02-09 00:47:21,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:47:21,668 INFO L470 AbstractCegarLoop]: Abstraction has 77795 states and 322640 transitions. [2022-02-09 00:47:21,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:21,668 INFO L276 IsEmpty]: Start isEmpty. Operand 77795 states and 322640 transitions. [2022-02-09 00:47:21,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-02-09 00:47:21,968 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:47:21,968 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:47:21,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-09 00:47:21,969 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:47:21,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:47:21,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1841694120, now seen corresponding path program 1 times [2022-02-09 00:47:21,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:47:21,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674196132] [2022-02-09 00:47:21,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:47:21,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:47:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:47:22,156 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-09 00:47:22,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:47:22,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674196132] [2022-02-09 00:47:22,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674196132] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:47:22,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:47:22,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 00:47:22,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460031555] [2022-02-09 00:47:22,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:47:22,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 00:47:22,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:47:22,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 00:47:22,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 00:47:22,158 INFO L87 Difference]: Start difference. First operand 77795 states and 322640 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:23,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:47:23,491 INFO L93 Difference]: Finished difference Result 115798 states and 458290 transitions. [2022-02-09 00:47:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 00:47:23,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 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 105 [2022-02-09 00:47:23,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:47:24,146 INFO L225 Difference]: With dead ends: 115798 [2022-02-09 00:47:24,147 INFO L226 Difference]: Without dead ends: 115798 [2022-02-09 00:47:24,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 00:47:24,163 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 144 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:47:24,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 301 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:47:24,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115798 states. [2022-02-09 00:47:27,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115798 to 105427. [2022-02-09 00:47:27,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105427 states, 105426 states have (on average 3.9930757118737312) internal successors, (420974), 105426 states have internal predecessors, (420974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:28,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105427 states to 105427 states and 420974 transitions. [2022-02-09 00:47:28,733 INFO L78 Accepts]: Start accepts. Automaton has 105427 states and 420974 transitions. Word has length 105 [2022-02-09 00:47:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:47:28,734 INFO L470 AbstractCegarLoop]: Abstraction has 105427 states and 420974 transitions. [2022-02-09 00:47:28,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:28,734 INFO L276 IsEmpty]: Start isEmpty. Operand 105427 states and 420974 transitions. [2022-02-09 00:47:29,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-09 00:47:29,125 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:47:29,125 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:47:29,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-09 00:47:29,126 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:47:29,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:47:29,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1040948797, now seen corresponding path program 1 times [2022-02-09 00:47:29,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:47:29,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014781] [2022-02-09 00:47:29,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:47:29,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:47:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:47:29,312 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-09 00:47:29,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:47:29,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014781] [2022-02-09 00:47:29,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014781] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:47:29,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350052197] [2022-02-09 00:47:29,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:47:29,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:47:29,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:47:29,353 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:47:29,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-09 00:47:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:47:29,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-09 00:47:29,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:47:29,828 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-09 00:47:29,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:47:30,373 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-09 00:47:30,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350052197] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:47:30,374 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:47:30,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2022-02-09 00:47:30,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187677054] [2022-02-09 00:47:30,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:47:30,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-09 00:47:30,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:47:30,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-09 00:47:30,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:47:30,375 INFO L87 Difference]: Start difference. First operand 105427 states and 420974 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:32,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:47:32,651 INFO L93 Difference]: Finished difference Result 210888 states and 832636 transitions. [2022-02-09 00:47:32,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 00:47:32,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-02-09 00:47:32,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:47:34,507 INFO L225 Difference]: With dead ends: 210888 [2022-02-09 00:47:34,507 INFO L226 Difference]: Without dead ends: 210738 [2022-02-09 00:47:34,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 213 SyntacticMatches, 10 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-09 00:47:34,512 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 167 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:47:34,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 1490 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:47:34,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210738 states. [2022-02-09 00:47:42,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210738 to 190713. [2022-02-09 00:47:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190713 states, 190712 states have (on average 3.9919197533453583) internal successors, (761307), 190712 states have internal predecessors, (761307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190713 states to 190713 states and 761307 transitions. [2022-02-09 00:47:45,856 INFO L78 Accepts]: Start accepts. Automaton has 190713 states and 761307 transitions. Word has length 110 [2022-02-09 00:47:45,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:47:45,857 INFO L470 AbstractCegarLoop]: Abstraction has 190713 states and 761307 transitions. [2022-02-09 00:47:45,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:45,857 INFO L276 IsEmpty]: Start isEmpty. Operand 190713 states and 761307 transitions. [2022-02-09 00:47:47,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-09 00:47:47,178 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:47:47,179 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:47:47,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-09 00:47:47,402 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 [2022-02-09 00:47:47,403 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:47:47,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:47:47,403 INFO L85 PathProgramCache]: Analyzing trace with hash -602034079, now seen corresponding path program 2 times [2022-02-09 00:47:47,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:47:47,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457495586] [2022-02-09 00:47:47,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:47:47,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:47:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:47:47,672 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:47:47,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:47:47,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457495586] [2022-02-09 00:47:47,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457495586] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:47:47,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497053056] [2022-02-09 00:47:47,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 00:47:47,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:47:47,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:47:47,675 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:47:47,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 00:47:47,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 00:47:47,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 00:47:47,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-09 00:47:47,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:47:48,133 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:47:48,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:47:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:47:48,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497053056] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:47:48,522 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:47:48,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2022-02-09 00:47:48,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307177063] [2022-02-09 00:47:48,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:47:48,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-09 00:47:48,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:47:48,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-09 00:47:48,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-02-09 00:47:48,524 INFO L87 Difference]: Start difference. First operand 190713 states and 761307 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:47:52,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:47:52,850 INFO L93 Difference]: Finished difference Result 318895 states and 1262121 transitions. [2022-02-09 00:47:52,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 00:47:52,851 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-02-09 00:47:52,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:47:55,319 INFO L225 Difference]: With dead ends: 318895 [2022-02-09 00:47:55,319 INFO L226 Difference]: Without dead ends: 318745 [2022-02-09 00:47:55,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 217 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:47:55,320 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 226 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:47:55,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2079 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:47:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318745 states. [2022-02-09 00:48:06,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318745 to 202457. [2022-02-09 00:48:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202457 states, 202456 states have (on average 4.008036314063303) internal successors, (811451), 202456 states have internal predecessors, (811451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:48:08,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202457 states to 202457 states and 811451 transitions. [2022-02-09 00:48:08,712 INFO L78 Accepts]: Start accepts. Automaton has 202457 states and 811451 transitions. Word has length 110 [2022-02-09 00:48:08,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:48:08,713 INFO L470 AbstractCegarLoop]: Abstraction has 202457 states and 811451 transitions. [2022-02-09 00:48:08,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:48:08,714 INFO L276 IsEmpty]: Start isEmpty. Operand 202457 states and 811451 transitions. [2022-02-09 00:48:10,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-09 00:48:10,021 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:48:10,022 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:48:10,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-09 00:48:10,243 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,SelfDestructingSolverStorable8 [2022-02-09 00:48:10,244 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:48:10,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:48:10,245 INFO L85 PathProgramCache]: Analyzing trace with hash 846260631, now seen corresponding path program 3 times [2022-02-09 00:48:10,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:48:10,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028844983] [2022-02-09 00:48:10,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:48:10,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:48:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:48:10,417 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:48:10,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:48:10,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028844983] [2022-02-09 00:48:10,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028844983] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:48:10,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934348603] [2022-02-09 00:48:10,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 00:48:10,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:48:10,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:48:10,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:48:10,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 00:48:10,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-09 00:48:10,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 00:48:10,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-09 00:48:10,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:48:10,966 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:48:10,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:48:11,336 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:48:11,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934348603] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:48:11,337 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:48:11,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2022-02-09 00:48:11,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031348227] [2022-02-09 00:48:11,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:48:11,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-09 00:48:11,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:48:11,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-09 00:48:11,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-02-09 00:48:11,338 INFO L87 Difference]: Start difference. First operand 202457 states and 811451 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:48:17,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:48:17,404 INFO L93 Difference]: Finished difference Result 413715 states and 1648838 transitions. [2022-02-09 00:48:17,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 00:48:17,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-02-09 00:48:17,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:48:21,633 INFO L225 Difference]: With dead ends: 413715 [2022-02-09 00:48:21,634 INFO L226 Difference]: Without dead ends: 413565 [2022-02-09 00:48:21,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 217 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:48:21,635 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 221 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:48:21,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2046 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 00:48:22,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413565 states. [2022-02-09 00:48:39,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413565 to 334905. [2022-02-09 00:48:40,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334905 states, 334904 states have (on average 4.0790405608771465) internal successors, (1366087), 334904 states have internal predecessors, (1366087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:48:45,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334905 states to 334905 states and 1366087 transitions. [2022-02-09 00:48:45,095 INFO L78 Accepts]: Start accepts. Automaton has 334905 states and 1366087 transitions. Word has length 110 [2022-02-09 00:48:45,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:48:45,096 INFO L470 AbstractCegarLoop]: Abstraction has 334905 states and 1366087 transitions. [2022-02-09 00:48:45,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:48:45,096 INFO L276 IsEmpty]: Start isEmpty. Operand 334905 states and 1366087 transitions. [2022-02-09 00:48:48,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-09 00:48:48,861 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:48:48,861 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:48:48,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 00:48:49,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:48:49,088 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:48:49,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:48:49,088 INFO L85 PathProgramCache]: Analyzing trace with hash -588909911, now seen corresponding path program 4 times [2022-02-09 00:48:49,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:48:49,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770110396] [2022-02-09 00:48:49,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:48:49,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:48:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:48:49,288 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:48:49,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:48:49,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770110396] [2022-02-09 00:48:49,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770110396] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:48:49,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469853799] [2022-02-09 00:48:49,288 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 00:48:49,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:48:49,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:48:49,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:48:49,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 00:48:49,865 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 00:48:49,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 00:48:49,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-09 00:48:49,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:48:50,329 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:48:50,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:48:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:48:50,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469853799] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:48:50,699 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:48:50,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 10 [2022-02-09 00:48:50,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972604902] [2022-02-09 00:48:50,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:48:50,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 00:48:50,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:48:50,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 00:48:50,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-02-09 00:48:50,701 INFO L87 Difference]: Start difference. First operand 334905 states and 1366087 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:48:56,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:48:56,540 INFO L93 Difference]: Finished difference Result 371265 states and 1494304 transitions. [2022-02-09 00:48:56,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 00:48:56,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-02-09 00:48:56,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:49:00,775 INFO L225 Difference]: With dead ends: 371265 [2022-02-09 00:49:00,775 INFO L226 Difference]: Without dead ends: 371115 [2022-02-09 00:49:00,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 216 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-09 00:49:00,778 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 265 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 2621 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:49:00,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 2621 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 00:49:02,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371115 states. [2022-02-09 00:49:10,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371115 to 136153. [2022-02-09 00:49:10,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136153 states, 136152 states have (on average 3.904187966390505) internal successors, (531563), 136152 states have internal predecessors, (531563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:49:12,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136153 states to 136153 states and 531563 transitions. [2022-02-09 00:49:12,059 INFO L78 Accepts]: Start accepts. Automaton has 136153 states and 531563 transitions. Word has length 110 [2022-02-09 00:49:12,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:49:12,060 INFO L470 AbstractCegarLoop]: Abstraction has 136153 states and 531563 transitions. [2022-02-09 00:49:12,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:49:12,060 INFO L276 IsEmpty]: Start isEmpty. Operand 136153 states and 531563 transitions. [2022-02-09 00:49:12,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-09 00:49:12,963 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:49:12,966 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:49:12,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 00:49:13,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:49:13,186 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:49:13,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:49:13,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1408416461, now seen corresponding path program 5 times [2022-02-09 00:49:13,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:49:13,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318302351] [2022-02-09 00:49:13,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:49:13,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:49:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:49:13,226 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-09 00:49:13,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:49:13,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318302351] [2022-02-09 00:49:13,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318302351] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:49:13,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:49:13,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 00:49:13,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952326313] [2022-02-09 00:49:13,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:49:13,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 00:49:13,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:49:13,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 00:49:13,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 00:49:13,229 INFO L87 Difference]: Start difference. First operand 136153 states and 531563 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:49:14,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:49:14,438 INFO L93 Difference]: Finished difference Result 131963 states and 512419 transitions. [2022-02-09 00:49:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 00:49:14,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 115 [2022-02-09 00:49:14,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:49:16,074 INFO L225 Difference]: With dead ends: 131963 [2022-02-09 00:49:16,075 INFO L226 Difference]: Without dead ends: 130748 [2022-02-09 00:49:16,075 INFO L932 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 [2022-02-09 00:49:16,076 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 62 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:49:16,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 178 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:49:16,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130748 states. [2022-02-09 00:49:19,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130748 to 78608. [2022-02-09 00:49:20,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78608 states, 78607 states have (on average 3.8701133486839594) internal successors, (304218), 78607 states have internal predecessors, (304218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:49:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78608 states to 78608 states and 304218 transitions. [2022-02-09 00:49:20,946 INFO L78 Accepts]: Start accepts. Automaton has 78608 states and 304218 transitions. Word has length 115 [2022-02-09 00:49:20,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:49:20,948 INFO L470 AbstractCegarLoop]: Abstraction has 78608 states and 304218 transitions. [2022-02-09 00:49:20,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:49:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 78608 states and 304218 transitions. [2022-02-09 00:49:21,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-09 00:49:21,231 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:49:21,231 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:49:21,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-09 00:49:21,232 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:49:21,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:49:21,232 INFO L85 PathProgramCache]: Analyzing trace with hash 423012440, now seen corresponding path program 6 times [2022-02-09 00:49:21,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:49:21,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585591735] [2022-02-09 00:49:21,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:49:21,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:49:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:49:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-09 00:49:21,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:49:21,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585591735] [2022-02-09 00:49:21,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585591735] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:49:21,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:49:21,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 00:49:21,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207685267] [2022-02-09 00:49:21,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:49:21,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 00:49:21,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:49:21,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 00:49:21,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 00:49:21,260 INFO L87 Difference]: Start difference. First operand 78608 states and 304218 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:49:22,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:49:22,146 INFO L93 Difference]: Finished difference Result 75410 states and 290690 transitions. [2022-02-09 00:49:22,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 00:49:22,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 115 [2022-02-09 00:49:22,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:49:22,460 INFO L225 Difference]: With dead ends: 75410 [2022-02-09 00:49:22,460 INFO L226 Difference]: Without dead ends: 67697 [2022-02-09 00:49:22,460 INFO L932 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 [2022-02-09 00:49:22,461 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 64 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:49:22,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 174 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:49:22,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67697 states. [2022-02-09 00:49:24,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67697 to 41957. [2022-02-09 00:49:24,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41957 states, 41956 states have (on average 3.838068452664696) internal successors, (161030), 41956 states have internal predecessors, (161030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:49:24,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41957 states to 41957 states and 161030 transitions. [2022-02-09 00:49:24,375 INFO L78 Accepts]: Start accepts. Automaton has 41957 states and 161030 transitions. Word has length 115 [2022-02-09 00:49:24,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:49:24,376 INFO L470 AbstractCegarLoop]: Abstraction has 41957 states and 161030 transitions. [2022-02-09 00:49:24,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:49:24,376 INFO L276 IsEmpty]: Start isEmpty. Operand 41957 states and 161030 transitions. [2022-02-09 00:49:24,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-09 00:49:24,511 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:49:24,512 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:49:24,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-09 00:49:24,512 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 00:49:24,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:49:24,512 INFO L85 PathProgramCache]: Analyzing trace with hash -140919818, now seen corresponding path program 7 times [2022-02-09 00:49:24,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:49:24,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583459941] [2022-02-09 00:49:24,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:49:24,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:49:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:49:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-09 00:49:24,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:49:24,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583459941] [2022-02-09 00:49:24,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583459941] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:49:24,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:49:24,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 00:49:24,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340814736] [2022-02-09 00:49:24,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:49:24,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 00:49:24,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:49:24,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 00:49:24,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 00:49:24,553 INFO L87 Difference]: Start difference. First operand 41957 states and 161030 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:49:25,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:49:25,199 INFO L93 Difference]: Finished difference Result 38102 states and 147194 transitions. [2022-02-09 00:49:25,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 00:49:25,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 115 [2022-02-09 00:49:25,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:49:25,200 INFO L225 Difference]: With dead ends: 38102 [2022-02-09 00:49:25,200 INFO L226 Difference]: Without dead ends: 0 [2022-02-09 00:49:25,201 INFO L932 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 [2022-02-09 00:49:25,201 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 60 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:49:25,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 155 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:49:25,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-09 00:49:25,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-09 00:49:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:49:25,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-09 00:49:25,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 115 [2022-02-09 00:49:25,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:49:25,210 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-09 00:49:25,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:49:25,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-09 00:49:25,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-09 00:49:25,216 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-09 00:49:25,216 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-09 00:49:25,216 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-09 00:49:25,216 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-09 00:49:25,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-09 00:49:25,219 INFO L732 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:49:25,220 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 00:49:25,220 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 00:49:25,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 12:49:25 BasicIcfg [2022-02-09 00:49:25,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 00:49:25,225 INFO L158 Benchmark]: Toolchain (without parser) took 143887.34ms. Allocated memory was 212.9MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 161.2MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-09 00:49:25,225 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 212.9MB. Free memory is still 177.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 00:49:25,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.46ms. Allocated memory is still 212.9MB. Free memory was 161.0MB in the beginning and 187.9MB in the end (delta: -27.0MB). Peak memory consumption was 5.9MB. Max. memory is 8.0GB. [2022-02-09 00:49:25,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.60ms. Allocated memory is still 212.9MB. Free memory was 187.9MB in the beginning and 186.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 00:49:25,226 INFO L158 Benchmark]: Boogie Preprocessor took 25.47ms. Allocated memory is still 212.9MB. Free memory was 186.4MB in the beginning and 184.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 00:49:25,226 INFO L158 Benchmark]: RCFGBuilder took 469.63ms. Allocated memory is still 212.9MB. Free memory was 184.8MB in the beginning and 170.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-09 00:49:25,226 INFO L158 Benchmark]: TraceAbstraction took 143142.33ms. Allocated memory was 212.9MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 170.2MB in the beginning and 6.0GB in the end (delta: -5.8GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-09 00:49:25,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 212.9MB. Free memory is still 177.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 213.46ms. Allocated memory is still 212.9MB. Free memory was 161.0MB in the beginning and 187.9MB in the end (delta: -27.0MB). Peak memory consumption was 5.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.60ms. Allocated memory is still 212.9MB. Free memory was 187.9MB in the beginning and 186.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.47ms. Allocated memory is still 212.9MB. Free memory was 186.4MB in the beginning and 184.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 469.63ms. Allocated memory is still 212.9MB. Free memory was 184.8MB in the beginning and 170.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 143142.33ms. Allocated memory was 212.9MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 170.2MB in the beginning and 6.0GB in the end (delta: -5.8GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 127]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 156 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 142.9s, OverallIterations: 14, TraceHistogramMax: 3, PathProgramHistogramMax: 7, EmptinessCheckTime: 9.6s, AutomataDifference: 43.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1655 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1655 mSDsluCounter, 10347 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8638 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1649 IncrementalHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 2314 mSDtfsCounter, 1649 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 956 GetRequests, 883 SyntacticMatches, 25 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=334905occurred in iteration=10, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 81.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 561054 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1833 NumberOfCodeBlocks, 1798 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2251 ConstructedInterpolants, 0 QuantifiedInterpolants, 7585 SizeOfPredicates, 8 NumberOfNonLiveVariables, 943 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 22 InterpolantComputations, 10 PerfectInterpolantSequences, 126/327 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-09 00:49:25,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...