/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 21:06:14,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 21:06:14,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 21:06:14,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 21:06:14,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 21:06:14,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 21:06:14,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 21:06:14,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 21:06:14,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 21:06:14,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 21:06:14,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 21:06:14,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 21:06:14,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 21:06:14,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 21:06:14,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 21:06:14,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 21:06:14,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 21:06:14,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 21:06:14,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 21:06:14,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 21:06:14,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 21:06:15,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 21:06:15,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 21:06:15,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 21:06:15,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-16 21:06:15,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 21:06:15,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 21:06:15,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 21:06:15,009 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-MCRwithoutDepranks-Lazy.epf [2022-02-16 21:06:15,021 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 21:06:15,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 21:06:15,021 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 21:06:15,021 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 21:06:15,022 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 21:06:15,022 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 21:06:15,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 21:06:15,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 21:06:15,022 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 21:06:15,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 21:06:15,023 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 21:06:15,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 21:06:15,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 21:06:15,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 21:06:15,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 21:06:15,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 21:06:15,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 21:06:15,023 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 21:06:15,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 21:06:15,023 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 21:06:15,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 21:06:15,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 21:06:15,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 21:06:15,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 21:06:15,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 21:06:15,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 21:06:15,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 21:06:15,024 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-16 21:06:15,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 21:06:15,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 21:06:15,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 21:06:15,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 21:06:15,025 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 21:06:15,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 21:06:15,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 21:06:15,025 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-16 21:06:15,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 21:06:15,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 21:06:15,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 21:06:15,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 21:06:15,213 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 21:06:15,214 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 21:06:15,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2022-02-16 21:06:15,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d78c835/22cf0dd928444f919aea27f1c26a4daf/FLAG0d686dd6c [2022-02-16 21:06:15,701 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 21:06:15,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2022-02-16 21:06:15,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d78c835/22cf0dd928444f919aea27f1c26a4daf/FLAG0d686dd6c [2022-02-16 21:06:15,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d78c835/22cf0dd928444f919aea27f1c26a4daf [2022-02-16 21:06:15,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 21:06:15,751 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 21:06:15,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 21:06:15,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 21:06:15,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 21:06:15,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 09:06:15" (1/1) ... [2022-02-16 21:06:15,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17823296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:15, skipping insertion in model container [2022-02-16 21:06:15,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 09:06:15" (1/1) ... [2022-02-16 21:06:15,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 21:06:15,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 21:06:16,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2022-02-16 21:06:16,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 21:06:16,128 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 21:06:16,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2022-02-16 21:06:16,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 21:06:16,262 INFO L208 MainTranslator]: Completed translation [2022-02-16 21:06:16,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16 WrapperNode [2022-02-16 21:06:16,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 21:06:16,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 21:06:16,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 21:06:16,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 21:06:16,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16" (1/1) ... [2022-02-16 21:06:16,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16" (1/1) ... [2022-02-16 21:06:16,323 INFO L137 Inliner]: procedures = 268, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-02-16 21:06:16,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 21:06:16,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 21:06:16,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 21:06:16,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 21:06:16,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16" (1/1) ... [2022-02-16 21:06:16,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16" (1/1) ... [2022-02-16 21:06:16,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16" (1/1) ... [2022-02-16 21:06:16,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16" (1/1) ... [2022-02-16 21:06:16,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16" (1/1) ... [2022-02-16 21:06:16,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16" (1/1) ... [2022-02-16 21:06:16,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16" (1/1) ... [2022-02-16 21:06:16,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 21:06:16,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 21:06:16,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 21:06:16,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 21:06:16,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16" (1/1) ... [2022-02-16 21:06:16,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 21:06:16,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 21:06:16,404 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) [2022-02-16 21:06:16,425 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 [2022-02-16 21:06:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 21:06:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 21:06:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-16 21:06:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 21:06:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 21:06:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 21:06:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 21:06:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 21:06:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-16 21:06:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-16 21:06:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 21:06:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 21:06:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 21:06:16,450 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 21:06:16,521 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 21:06:16,522 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 21:06:16,710 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 21:06:16,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 21:06:16,715 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-16 21:06:16,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 09:06:16 BoogieIcfgContainer [2022-02-16 21:06:16,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 21:06:16,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 21:06:16,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 21:06:16,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 21:06:16,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 09:06:15" (1/3) ... [2022-02-16 21:06:16,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e6e950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 09:06:16, skipping insertion in model container [2022-02-16 21:06:16,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 09:06:16" (2/3) ... [2022-02-16 21:06:16,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e6e950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 09:06:16, skipping insertion in model container [2022-02-16 21:06:16,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 09:06:16" (3/3) ... [2022-02-16 21:06:16,723 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2022-02-16 21:06:16,727 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 21:06:16,727 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 21:06:16,727 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 21:06:16,727 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 21:06:16,755 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,755 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,755 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,755 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,755 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,755 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,756 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,756 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,757 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,757 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,759 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,759 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,759 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,759 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,759 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,760 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,760 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,760 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,760 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,760 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,760 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,760 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,761 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,761 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,761 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,762 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,767 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,767 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,769 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,769 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,769 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,769 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,769 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,769 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 21:06:16,772 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-16 21:06:16,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 21:06:16,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 21:06:16,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-16 21:06:16,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-16 21:06:16,878 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 21:06:16,886 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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 [2022-02-16 21:06:16,886 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-16 21:06:17,102 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 120 transitions and produced 121 states. [2022-02-16 21:06:17,104 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 21:06:17,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 21:06:17,111 INFO L85 PathProgramCache]: Analyzing trace with hash 350373074, now seen corresponding path program 1 times [2022-02-16 21:06:17,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 21:06:17,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087119413] [2022-02-16 21:06:17,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 21:06:17,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 21:06:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 21:06:17,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 21:06:17,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 21:06:17,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087119413] [2022-02-16 21:06:17,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087119413] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 21:06:17,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 21:06:17,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 21:06:17,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740781762] [2022-02-16 21:06:17,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 21:06:17,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-16 21:06:17,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 21:06:17,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-16 21:06:17,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-16 21:06:17,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:17,374 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 21:06:17,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 21:06:17,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:17,486 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 120 transitions and produced 121 states. [2022-02-16 21:06:17,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:17,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 21:06:17,487 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 21:06:17,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 21:06:17,489 INFO L85 PathProgramCache]: Analyzing trace with hash -222192304, now seen corresponding path program 1 times [2022-02-16 21:06:17,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 21:06:17,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154504796] [2022-02-16 21:06:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 21:06:17,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 21:06:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 21:06:17,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 21:06:17,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 21:06:17,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154504796] [2022-02-16 21:06:17,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154504796] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 21:06:17,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 21:06:17,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 21:06:17,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912278911] [2022-02-16 21:06:17,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 21:06:17,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 21:06:17,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 21:06:17,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 21:06:17,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 21:06:17,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:17,603 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 21:06:17,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 21:06:17,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:17,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:18,659 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 290 transitions and produced 285 states. [2022-02-16 21:06:18,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:18,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 21:06:18,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 21:06:18,660 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 21:06:18,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 21:06:18,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1193066536, now seen corresponding path program 1 times [2022-02-16 21:06:18,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 21:06:18,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413569790] [2022-02-16 21:06:18,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 21:06:18,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 21:06:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 21:06:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-02-16 21:06:18,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 21:06:18,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413569790] [2022-02-16 21:06:18,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413569790] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 21:06:18,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 21:06:18,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 21:06:18,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567349898] [2022-02-16 21:06:18,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 21:06:18,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 21:06:18,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 21:06:18,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 21:06:18,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 21:06:18,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:18,836 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 21:06:18,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 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) [2022-02-16 21:06:18,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:18,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 21:06:18,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:19,501 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 168 transitions and produced 167 states. [2022-02-16 21:06:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 21:06:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 21:06:19,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-16 21:06:19,502 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 21:06:19,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 21:06:19,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1726485334, now seen corresponding path program 2 times [2022-02-16 21:06:19,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 21:06:19,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979713096] [2022-02-16 21:06:19,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 21:06:19,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 21:06:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 21:06:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-16 21:06:19,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 21:06:19,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979713096] [2022-02-16 21:06:19,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979713096] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 21:06:19,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220582907] [2022-02-16 21:06:19,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 21:06:19,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 21:06:19,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 21:06:19,616 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) [2022-02-16 21:06:19,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 21:06:19,767 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 21:06:19,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 21:06:19,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-16 21:06:19,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 21:06:20,018 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-16 21:06:20,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 21:06:20,177 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-16 21:06:20,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220582907] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 21:06:20,178 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 21:06:20,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2022-02-16 21:06:20,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542128140] [2022-02-16 21:06:20,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 21:06:20,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-16 21:06:20,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 21:06:20,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-16 21:06:20,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-16 21:06:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:20,180 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 21:06:20,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 21:06:20,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 21:06:20,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 21:06:20,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 21:06:20,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.