/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 20:02:03,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 20:02:03,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 20:02:03,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 20:02:03,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 20:02:03,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 20:02:03,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 20:02:03,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 20:02:03,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 20:02:03,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 20:02:03,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 20:02:03,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 20:02:03,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 20:02:03,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 20:02:03,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 20:02:03,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 20:02:03,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 20:02:03,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 20:02:03,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 20:02:03,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 20:02:03,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 20:02:03,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 20:02:03,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 20:02:03,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 20:02:03,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 20:02:03,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 20:02:03,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 20:02:03,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 20:02:03,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 20:02:03,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-15 20:02:03,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 20:02:03,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 20:02:03,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 20:02:03,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 20:02:03,246 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 20:02:03,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 20:02:03,247 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 20:02:03,247 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 20:02:03,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 20:02:03,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 20:02:03,248 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 20:02:03,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 20:02:03,248 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 20:02:03,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 20:02:03,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 20:02:03,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 20:02:03,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 20:02:03,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 20:02:03,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 20:02:03,249 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 20:02:03,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 20:02:03,249 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 20:02:03,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 20:02:03,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 20:02:03,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 20:02:03,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 20:02:03,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 20:02:03,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:02:03,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 20:02:03,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 20:02:03,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 20:02:03,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 20:02:03,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 20:02:03,251 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 20:02:03,251 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 20:02:03,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 20:02:03,251 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 20:02:03,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 20:02:03,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 20:02:03,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 20:02:03,456 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 20:02:03,456 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 20:02:03,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2022-03-15 20:02:03,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8917d41b4/ce0539697c144171b865a8356cb5014a/FLAG24a7a445c [2022-03-15 20:02:03,948 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 20:02:03,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2022-03-15 20:02:03,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8917d41b4/ce0539697c144171b865a8356cb5014a/FLAG24a7a445c [2022-03-15 20:02:03,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8917d41b4/ce0539697c144171b865a8356cb5014a [2022-03-15 20:02:03,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 20:02:03,975 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 20:02:03,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 20:02:03,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 20:02:03,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 20:02:03,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:02:03" (1/1) ... [2022-03-15 20:02:03,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4975a978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:03, skipping insertion in model container [2022-03-15 20:02:03,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:02:03" (1/1) ... [2022-03-15 20:02:03,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 20:02:04,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 20:02:04,319 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-deagle/circular_buffer_bad.i[30440,30453] [2022-03-15 20:02:04,331 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-deagle/circular_buffer_bad.i[30895,30908] [2022-03-15 20:02:04,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:02:04,346 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 20:02:04,382 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-deagle/circular_buffer_bad.i[30440,30453] [2022-03-15 20:02:04,393 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-deagle/circular_buffer_bad.i[30895,30908] [2022-03-15 20:02:04,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:02:04,430 INFO L208 MainTranslator]: Completed translation [2022-03-15 20:02:04,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04 WrapperNode [2022-03-15 20:02:04,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 20:02:04,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 20:02:04,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 20:02:04,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 20:02:04,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04" (1/1) ... [2022-03-15 20:02:04,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04" (1/1) ... [2022-03-15 20:02:04,487 INFO L137 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 135 [2022-03-15 20:02:04,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 20:02:04,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 20:02:04,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 20:02:04,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 20:02:04,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04" (1/1) ... [2022-03-15 20:02:04,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04" (1/1) ... [2022-03-15 20:02:04,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04" (1/1) ... [2022-03-15 20:02:04,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04" (1/1) ... [2022-03-15 20:02:04,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04" (1/1) ... [2022-03-15 20:02:04,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04" (1/1) ... [2022-03-15 20:02:04,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04" (1/1) ... [2022-03-15 20:02:04,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 20:02:04,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 20:02:04,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 20:02:04,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 20:02:04,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04" (1/1) ... [2022-03-15 20:02:04,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:02:04,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:02:04,566 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) [2022-03-15 20:02:04,567 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 [2022-03-15 20:02:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 20:02:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-03-15 20:02:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-03-15 20:02:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-03-15 20:02:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-03-15 20:02:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 20:02:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-15 20:02:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 20:02:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 20:02:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 20:02:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-03-15 20:02:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 20:02:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 20:02:04,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 20:02:04,593 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 20:02:04,673 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 20:02:04,674 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 20:02:04,849 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 20:02:04,854 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 20:02:04,855 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-15 20:02:04,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:02:04 BoogieIcfgContainer [2022-03-15 20:02:04,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 20:02:04,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 20:02:04,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 20:02:04,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 20:02:04,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 08:02:03" (1/3) ... [2022-03-15 20:02:04,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6412348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:02:04, skipping insertion in model container [2022-03-15 20:02:04,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:02:04" (2/3) ... [2022-03-15 20:02:04,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6412348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:02:04, skipping insertion in model container [2022-03-15 20:02:04,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:02:04" (3/3) ... [2022-03-15 20:02:04,861 INFO L111 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2022-03-15 20:02:04,864 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 20:02:04,864 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 20:02:04,864 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-03-15 20:02:04,864 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 20:02:04,902 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,902 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,902 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,903 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,903 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,903 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,903 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,903 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,903 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,903 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,903 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,904 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,904 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,904 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,904 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,904 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,905 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,905 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,905 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,905 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,905 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,905 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,905 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,906 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,906 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,906 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,906 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,906 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,906 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,906 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,907 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,907 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,907 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,907 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,907 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,907 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,907 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,907 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,907 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,908 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,908 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,908 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,908 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,908 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,908 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,908 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,909 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,910 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,910 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,910 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,911 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,911 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,911 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,916 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,917 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,918 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,918 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,918 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,918 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,918 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,919 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,919 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,920 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,921 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,921 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,921 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,921 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,921 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,921 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,922 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,922 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,922 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,922 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,922 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,922 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,922 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,922 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,923 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,923 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,923 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,923 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,923 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,923 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,924 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,924 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,924 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,924 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,924 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,924 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,924 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,924 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,925 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,925 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,925 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,925 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,926 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,926 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,926 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,926 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,926 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,926 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,927 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,927 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,927 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,927 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,927 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,927 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,928 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,928 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,928 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,928 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,929 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,929 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,929 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,929 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,929 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,929 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,929 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,929 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,930 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,930 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,930 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,930 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,930 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,930 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,930 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,930 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,935 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,936 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,936 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,936 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,936 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,936 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,936 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,936 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,937 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,937 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,937 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,940 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,940 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,940 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,940 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,940 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,941 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,941 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,941 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,941 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,941 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,941 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:02:04,947 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 20:02:04,977 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:02:04,981 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:02:04,981 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-03-15 20:02:04,996 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:02:05,004 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 150 transitions, 316 flow [2022-03-15 20:02:05,010 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 150 transitions, 316 flow [2022-03-15 20:02:05,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 150 transitions, 316 flow [2022-03-15 20:02:05,083 INFO L129 PetriNetUnfolder]: 10/148 cut-off events. [2022-03-15 20:02:05,083 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-03-15 20:02:05,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 148 events. 10/148 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 257 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-03-15 20:02:05,092 INFO L116 LiptonReduction]: Number of co-enabled transitions 4204 [2022-03-15 20:02:09,230 INFO L131 LiptonReduction]: Checked pairs total: 9263 [2022-03-15 20:02:09,230 INFO L133 LiptonReduction]: Total number of compositions: 130 [2022-03-15 20:02:09,235 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 39 transitions, 94 flow [2022-03-15 20:02:09,262 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 332 states, 329 states have (on average 2.7598784194528876) internal successors, (908), 331 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:09,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 332 states, 329 states have (on average 2.7598784194528876) internal successors, (908), 331 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:09,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 20:02:09,268 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:09,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:02:09,269 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 20:02:09,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:09,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1858595163, now seen corresponding path program 1 times [2022-03-15 20:02:09,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:09,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309268801] [2022-03-15 20:02:09,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:09,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:09,373 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-15 20:02:09,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [838455148] [2022-03-15 20:02:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:09,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:02:09,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:02:09,375 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) [2022-03-15 20:02:09,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 20:02:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:02:09,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 20:02:09,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:02:09,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:02:09,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 20:02:09,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:02:09,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309268801] [2022-03-15 20:02:09,536 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-15 20:02:09,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838455148] [2022-03-15 20:02:09,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838455148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:02:09,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:02:09,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 20:02:09,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [815885165] [2022-03-15 20:02:09,538 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:02:09,540 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:02:09,547 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2022-03-15 20:02:09,547 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:02:09,549 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:02:09,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:02:09,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:02:09,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:02:09,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:02:09,566 INFO L87 Difference]: Start difference. First operand has 332 states, 329 states have (on average 2.7598784194528876) internal successors, (908), 331 states have internal predecessors, (908), 0 states have call successors, (0), 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 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:09,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:02:09,628 INFO L93 Difference]: Finished difference Result 308 states and 845 transitions. [2022-03-15 20:02:09,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:02:09,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-03-15 20:02:09,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:02:09,637 INFO L225 Difference]: With dead ends: 308 [2022-03-15 20:02:09,637 INFO L226 Difference]: Without dead ends: 286 [2022-03-15 20:02:09,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:02:09,640 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:02:09,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 4 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:02:09,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-15 20:02:09,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-03-15 20:02:09,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 2.7578947368421054) internal successors, (786), 285 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:09,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 786 transitions. [2022-03-15 20:02:09,695 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 786 transitions. Word has length 7 [2022-03-15 20:02:09,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:02:09,696 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 786 transitions. [2022-03-15 20:02:09,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 786 transitions. [2022-03-15 20:02:09,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-03-15 20:02:09,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:09,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:02:09,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 20:02:09,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-15 20:02:09,914 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 20:02:09,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:09,914 INFO L85 PathProgramCache]: Analyzing trace with hash 463779637, now seen corresponding path program 1 times [2022-03-15 20:02:09,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:09,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382384869] [2022-03-15 20:02:09,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:09,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:02:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:02:10,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:02:10,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382384869] [2022-03-15 20:02:10,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382384869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:02:10,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:02:10,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 20:02:10,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1098618067] [2022-03-15 20:02:10,045 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:02:10,046 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:02:10,047 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2022-03-15 20:02:10,047 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:02:10,047 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:02:10,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:02:10,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:02:10,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:02:10,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:02:10,049 INFO L87 Difference]: Start difference. First operand 286 states and 786 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:10,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:02:10,094 INFO L93 Difference]: Finished difference Result 442 states and 1183 transitions. [2022-03-15 20:02:10,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:02:10,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-03-15 20:02:10,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:02:10,097 INFO L225 Difference]: With dead ends: 442 [2022-03-15 20:02:10,097 INFO L226 Difference]: Without dead ends: 416 [2022-03-15 20:02:10,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:02:10,098 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:02:10,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 9 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:02:10,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-03-15 20:02:10,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2022-03-15 20:02:10,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 415 states have (on average 2.7012048192771085) internal successors, (1121), 415 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:10,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 1121 transitions. [2022-03-15 20:02:10,110 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 1121 transitions. Word has length 9 [2022-03-15 20:02:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:02:10,110 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 1121 transitions. [2022-03-15 20:02:10,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:10,111 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 1121 transitions. [2022-03-15 20:02:10,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-15 20:02:10,112 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:10,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:02:10,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 20:02:10,112 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 20:02:10,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:10,113 INFO L85 PathProgramCache]: Analyzing trace with hash -401889659, now seen corresponding path program 1 times [2022-03-15 20:02:10,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:10,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965887050] [2022-03-15 20:02:10,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:10,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:02:10,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:02:10,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:02:10,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965887050] [2022-03-15 20:02:10,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965887050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:02:10,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:02:10,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 20:02:10,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [303739533] [2022-03-15 20:02:10,182 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:02:10,183 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:02:10,185 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 22 transitions. [2022-03-15 20:02:10,185 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:02:10,212 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:02:10,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:02:10,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:02:10,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:02:10,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:02:10,213 INFO L87 Difference]: Start difference. First operand 416 states and 1121 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:10,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:02:10,264 INFO L93 Difference]: Finished difference Result 248 states and 580 transitions. [2022-03-15 20:02:10,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:02:10,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 14 [2022-03-15 20:02:10,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:02:10,265 INFO L225 Difference]: With dead ends: 248 [2022-03-15 20:02:10,265 INFO L226 Difference]: Without dead ends: 248 [2022-03-15 20:02:10,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:02:10,267 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 25 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:02:10,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 3 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:02:10,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-15 20:02:10,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 200. [2022-03-15 20:02:10,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 2.3618090452261304) internal successors, (470), 199 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:10,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 470 transitions. [2022-03-15 20:02:10,279 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 470 transitions. Word has length 14 [2022-03-15 20:02:10,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:02:10,279 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 470 transitions. [2022-03-15 20:02:10,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:10,279 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 470 transitions. [2022-03-15 20:02:10,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 20:02:10,283 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:10,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:02:10,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 20:02:10,296 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 20:02:10,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1442817712, now seen corresponding path program 1 times [2022-03-15 20:02:10,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:10,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801626174] [2022-03-15 20:02:10,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:10,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:02:10,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:02:10,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:02:10,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801626174] [2022-03-15 20:02:10,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801626174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:02:10,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:02:10,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 20:02:10,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [859377518] [2022-03-15 20:02:10,443 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:02:10,444 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:02:10,447 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 51 transitions. [2022-03-15 20:02:10,447 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:02:10,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:10,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:10,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:10,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:10,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:10,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:10,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:10,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:10,641 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:10,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:10,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:10,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:10,655 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:02:10,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:02:10,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:02:10,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:02:10,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:02:10,656 INFO L87 Difference]: Start difference. First operand 200 states and 470 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:10,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:02:10,703 INFO L93 Difference]: Finished difference Result 248 states and 577 transitions. [2022-03-15 20:02:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:02:10,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 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 15 [2022-03-15 20:02:10,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:02:10,704 INFO L225 Difference]: With dead ends: 248 [2022-03-15 20:02:10,704 INFO L226 Difference]: Without dead ends: 248 [2022-03-15 20:02:10,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:02:10,705 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:02:10,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 9 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:02:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-15 20:02:10,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 232. [2022-03-15 20:02:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 2.3506493506493507) internal successors, (543), 231 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 543 transitions. [2022-03-15 20:02:10,710 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 543 transitions. Word has length 15 [2022-03-15 20:02:10,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:02:10,710 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 543 transitions. [2022-03-15 20:02:10,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 543 transitions. [2022-03-15 20:02:10,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-03-15 20:02:10,710 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:10,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:02:10,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 20:02:10,711 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 20:02:10,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:10,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1374928419, now seen corresponding path program 1 times [2022-03-15 20:02:10,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:10,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514906949] [2022-03-15 20:02:10,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:10,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:10,725 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-15 20:02:10,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [646642972] [2022-03-15 20:02:10,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:10,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:02:10,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:02:10,727 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) [2022-03-15 20:02:10,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 20:02:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:02:10,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-15 20:02:10,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:02:11,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:02:11,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 20:02:11,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:02:11,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514906949] [2022-03-15 20:02:11,086 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-15 20:02:11,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646642972] [2022-03-15 20:02:11,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646642972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:02:11,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:02:11,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 20:02:11,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1017326931] [2022-03-15 20:02:11,087 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:02:11,088 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:02:11,092 INFO L252 McrAutomatonBuilder]: Finished intersection with 37 states and 55 transitions. [2022-03-15 20:02:11,092 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:02:15,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:15,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:15,642 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:15,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:15,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:15,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:15,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:15,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:15,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:15,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:15,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:15,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:15,801 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:02:15,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 20:02:15,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:02:15,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 20:02:15,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 20:02:15,802 INFO L87 Difference]: Start difference. First operand 232 states and 543 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:15,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:02:15,914 INFO L93 Difference]: Finished difference Result 366 states and 849 transitions. [2022-03-15 20:02:15,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 20:02:15,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 17 [2022-03-15 20:02:15,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:02:15,916 INFO L225 Difference]: With dead ends: 366 [2022-03-15 20:02:15,916 INFO L226 Difference]: Without dead ends: 366 [2022-03-15 20:02:15,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 20:02:15,917 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 24 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 20:02:15,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 14 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 20:02:15,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-03-15 20:02:15,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 342. [2022-03-15 20:02:15,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 341 states have (on average 2.340175953079179) internal successors, (798), 341 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 798 transitions. [2022-03-15 20:02:15,923 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 798 transitions. Word has length 17 [2022-03-15 20:02:15,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:02:15,924 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 798 transitions. [2022-03-15 20:02:15,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 798 transitions. [2022-03-15 20:02:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-03-15 20:02:15,924 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:15,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:02:15,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-15 20:02:16,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:02:16,140 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 20:02:16,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:16,140 INFO L85 PathProgramCache]: Analyzing trace with hash 326754739, now seen corresponding path program 1 times [2022-03-15 20:02:16,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:16,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098037818] [2022-03-15 20:02:16,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:16,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:16,155 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-15 20:02:16,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [718676758] [2022-03-15 20:02:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:16,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:02:16,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:02:16,156 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) [2022-03-15 20:02:16,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 20:02:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:02:16,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-15 20:02:16,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:02:16,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 20:02:16,321 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-03-15 20:02:16,336 INFO L353 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-03-15 20:02:16,336 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-03-15 20:02:16,368 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-03-15 20:02:16,464 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-03-15 20:02:16,557 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-03-15 20:02:16,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:02:16,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 20:02:16,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:02:16,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098037818] [2022-03-15 20:02:16,601 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-15 20:02:16,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718676758] [2022-03-15 20:02:16,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718676758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:02:16,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:02:16,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 20:02:16,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1453668706] [2022-03-15 20:02:16,602 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:02:16,603 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:02:16,608 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 56 transitions. [2022-03-15 20:02:16,608 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:02:16,756 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:16,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:16,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:16,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:16,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:16,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:16,860 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:16,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:16,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:16,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:16,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:16,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:17,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:17,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:17,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:17,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:17,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:17,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:17,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:17,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:17,063 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [5520#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#buffer~0.base|)) (= |~#buffer~0.base| 3) (= 0 |t1Thread1of1ForFork0_~i~0#1|)), 5519#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#buffer~0.base|)) (= |~#buffer~0.base| 3) (= |t1Thread1of1ForFork0_insertLogElement_#in~b#1| 0))] [2022-03-15 20:02:17,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 20:02:17,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:02:17,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 20:02:17,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:02:17,064 INFO L87 Difference]: Start difference. First operand 342 states and 798 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:17,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:02:17,476 INFO L93 Difference]: Finished difference Result 746 states and 1714 transitions. [2022-03-15 20:02:17,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 20:02:17,477 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 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 18 [2022-03-15 20:02:17,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:02:17,479 INFO L225 Difference]: With dead ends: 746 [2022-03-15 20:02:17,479 INFO L226 Difference]: Without dead ends: 734 [2022-03-15 20:02:17,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-03-15 20:02:17,480 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 162 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 20:02:17,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 71 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 342 Invalid, 0 Unknown, 98 Unchecked, 0.3s Time] [2022-03-15 20:02:17,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2022-03-15 20:02:17,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 434. [2022-03-15 20:02:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 433 states have (on average 2.327944572748268) internal successors, (1008), 433 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1008 transitions. [2022-03-15 20:02:17,489 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1008 transitions. Word has length 18 [2022-03-15 20:02:17,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:02:17,490 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 1008 transitions. [2022-03-15 20:02:17,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:17,490 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1008 transitions. [2022-03-15 20:02:17,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 20:02:17,490 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:17,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:02:17,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-15 20:02:17,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:02:17,710 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 20:02:17,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:17,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1539463221, now seen corresponding path program 1 times [2022-03-15 20:02:17,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:17,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140071678] [2022-03-15 20:02:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:17,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:17,724 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-15 20:02:17,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [458307081] [2022-03-15 20:02:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:17,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:02:17,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:02:17,725 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) [2022-03-15 20:02:17,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 20:02:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:02:17,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-15 20:02:17,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 20:02:17,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 20:02:17,910 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-03-15 20:02:17,926 INFO L353 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-03-15 20:02:17,927 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-03-15 20:02:17,953 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-03-15 20:02:18,046 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-03-15 20:02:18,132 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-03-15 20:02:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:02:18,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 20:02:18,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:02:18,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140071678] [2022-03-15 20:02:18,188 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-15 20:02:18,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458307081] [2022-03-15 20:02:18,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458307081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:02:18,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:02:18,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 20:02:18,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1671916220] [2022-03-15 20:02:18,189 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:02:18,191 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:02:18,197 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 71 transitions. [2022-03-15 20:02:18,197 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:02:18,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:18,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:18,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:18,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:18,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:18,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:18,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:18,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:18,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:18,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:18,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:18,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:18,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:18,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:18,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:18,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:18,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:18,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:18,849 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 20:02:18,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-03-15 20:02:18,857 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [7216#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#buffer~0.base|)) (= |~#buffer~0.base| 3) (= 0 |t1Thread1of1ForFork0_~i~0#1|)), 7215#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#buffer~0.base|)) (= |~#buffer~0.base| 3) (= |t1Thread1of1ForFork0_insertLogElement_#in~b#1| 0))] [2022-03-15 20:02:18,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 20:02:18,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:02:18,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 20:02:18,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-15 20:02:18,858 INFO L87 Difference]: Start difference. First operand 434 states and 1008 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:19,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:02:19,208 INFO L93 Difference]: Finished difference Result 728 states and 1675 transitions. [2022-03-15 20:02:19,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 20:02:19,209 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 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 19 [2022-03-15 20:02:19,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:02:19,211 INFO L225 Difference]: With dead ends: 728 [2022-03-15 20:02:19,211 INFO L226 Difference]: Without dead ends: 724 [2022-03-15 20:02:19,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-03-15 20:02:19,212 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 181 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 97 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 20:02:19,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 60 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 274 Invalid, 0 Unknown, 97 Unchecked, 0.2s Time] [2022-03-15 20:02:19,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2022-03-15 20:02:19,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 434. [2022-03-15 20:02:19,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 433 states have (on average 2.327944572748268) internal successors, (1008), 433 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:19,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1008 transitions. [2022-03-15 20:02:19,221 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1008 transitions. Word has length 19 [2022-03-15 20:02:19,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:02:19,221 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 1008 transitions. [2022-03-15 20:02:19,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:02:19,221 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1008 transitions. [2022-03-15 20:02:19,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 20:02:19,222 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:02:19,222 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:02:19,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 20:02:19,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:02:19,422 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-03-15 20:02:19,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:02:19,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1985299249, now seen corresponding path program 1 times [2022-03-15 20:02:19,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:02:19,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098863705] [2022-03-15 20:02:19,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:19,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:02:19,438 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-15 20:02:19,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773303106] [2022-03-15 20:02:19,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:02:19,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:02:19,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:02:19,441 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 20:02:19,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 20:02:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:02:19,645 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:02:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:02:19,714 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:02:19,740 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:02:19,740 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-03-15 20:02:19,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 6 remaining) [2022-03-15 20:02:19,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 6 remaining) [2022-03-15 20:02:19,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-03-15 20:02:19,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-03-15 20:02:19,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-03-15 20:02:19,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-15 20:02:19,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 20:02:19,944 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:02:19,947 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 20:02:19,947 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 20:02:19,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 08:02:19 BasicIcfg [2022-03-15 20:02:19,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 20:02:19,980 INFO L158 Benchmark]: Toolchain (without parser) took 16005.29ms. Allocated memory was 216.0MB in the beginning and 320.9MB in the end (delta: 104.9MB). Free memory was 164.6MB in the beginning and 284.7MB in the end (delta: -120.1MB). Peak memory consumption was 162.2MB. Max. memory is 8.0GB. [2022-03-15 20:02:19,980 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 216.0MB. Free memory is still 182.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 20:02:19,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.43ms. Allocated memory is still 216.0MB. Free memory was 164.4MB in the beginning and 182.2MB in the end (delta: -17.8MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2022-03-15 20:02:19,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.05ms. Allocated memory is still 216.0MB. Free memory was 182.2MB in the beginning and 180.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 20:02:19,981 INFO L158 Benchmark]: Boogie Preprocessor took 46.76ms. Allocated memory is still 216.0MB. Free memory was 180.1MB in the beginning and 178.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 20:02:19,981 INFO L158 Benchmark]: RCFGBuilder took 320.81ms. Allocated memory is still 216.0MB. Free memory was 178.3MB in the beginning and 161.7MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-03-15 20:02:19,981 INFO L158 Benchmark]: TraceAbstraction took 15122.91ms. Allocated memory was 216.0MB in the beginning and 320.9MB in the end (delta: 104.9MB). Free memory was 161.2MB in the beginning and 284.7MB in the end (delta: -123.5MB). Peak memory consumption was 158.0MB. Max. memory is 8.0GB. [2022-03-15 20:02:19,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 216.0MB. Free memory is still 182.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 455.43ms. Allocated memory is still 216.0MB. Free memory was 164.4MB in the beginning and 182.2MB in the end (delta: -17.8MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.05ms. Allocated memory is still 216.0MB. Free memory was 182.2MB in the beginning and 180.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.76ms. Allocated memory is still 216.0MB. Free memory was 180.1MB in the beginning and 178.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 320.81ms. Allocated memory is still 216.0MB. Free memory was 178.3MB in the beginning and 161.7MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 15122.91ms. Allocated memory was 216.0MB in the beginning and 320.9MB in the end (delta: 104.9MB). Free memory was 161.2MB in the beginning and 284.7MB in the end (delta: -123.5MB). Peak memory consumption was 158.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 147 PlacesBefore, 40 PlacesAfterwards, 150 TransitionsBefore, 39 TransitionsAfterwards, 4204 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 130 TotalNumberOfCompositions, 9263 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5992, positive: 5709, positive conditional: 0, positive unconditional: 5709, negative: 283, negative conditional: 0, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2435, positive: 2393, positive conditional: 0, positive unconditional: 2393, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5992, positive: 3316, positive conditional: 0, positive unconditional: 3316, negative: 241, negative conditional: 0, negative unconditional: 241, unknown: 2435, unknown conditional: 0, unknown unconditional: 2435] , Statistics on independence cache: Total cache size (in pairs): 229, Positive cache size: 210, Positive conditional cache size: 0, Positive unconditional cache size: 210, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - 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 - CounterExampleResult [Line: 746]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 static char buffer[10]; [L683] 0 static unsigned int first; [L684] 0 static unsigned int next; [L685] 0 static int buffer_size; [L686] 0 _Bool send, receive; [L687] 0 pthread_mutex_t m; [L756] 0 pthread_t id1, id2; [L758] CALL 0 initLog(10) [L690] 0 buffer_size = max [L691] EXPR 0 next = 0 [L691] 0 first = next = 0 [L758] RET 0 initLog(10) [L759] 0 send=1 [L760] 0 receive=0 [L761] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [buffer={3:0}, buffer_size=10, first=0, id1={6:0}, id2={5:0}, m={4:0}, next=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=-2, receive=0, send=1] [L762] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [buffer={3:0}, buffer_size=10, first=0, id1={6:0}, id2={5:0}, m={4:0}, next=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=-1, receive=0, send=1] [L739] 2 int i; [L740] 2 i=0 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L740] COND TRUE 2 i<7 [L743] COND FALSE 2 !(\read(receive)) VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L740] 2 i++ VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=1, m={4:0}, next=0, receive=0, send=1] [L723] 1 int i; [L724] 1 i=0 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L724] COND TRUE 1 i<7 [L727] COND TRUE 1 \read(send) [L729] CALL 1 insertLogElement(i) [L707] COND TRUE 1 next < buffer_size && buffer_size > 0 [L709] 1 buffer[next] = b VAL [\old(b)=0, b=0, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=0, receive=0, send=1] [L710] 1 next = (next+1)%buffer_size [L712] COND TRUE 1 next 0 && first < buffer_size VAL [buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=1, receive=1, send=0] [L697] 2 first++ [L698] EXPR 2 buffer[first-1] [L698] 2 return buffer[first-1]; [L745] RET, EXPR 2 removeLogElement() [L745] COND FALSE 2 !(removeLogElement()==i) [L746] 2 reach_error() VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=1, i=1, m={4:0}, next=1, receive=1, send=0] - UnprovableResult [Line: 761]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 213 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 15.0s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 454 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 454 mSDsluCounter, 170 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 195 IncrementalHoareTripleChecker+Unchecked, 490 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 906 IncrementalHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 45 mSDtfsCounter, 906 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 113 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=434occurred in iteration=6, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 678 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 3 QuantifiedInterpolants, 794 SizeOfPredicates, 27 NumberOfNonLiveVariables, 834 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-03-15 20:02:20,024 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...