/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-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 17:56:24,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 17:56:24,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 17:56:24,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 17:56:24,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 17:56:24,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 17:56:24,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 17:56:24,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 17:56:24,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 17:56:24,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 17:56:24,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 17:56:24,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 17:56:24,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 17:56:24,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 17:56:24,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 17:56:24,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 17:56:24,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 17:56:24,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 17:56:24,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 17:56:24,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 17:56:24,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 17:56:24,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 17:56:24,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 17:56:24,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 17:56:24,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 17:56:24,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 17:56:24,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 17:56:24,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 17:56:24,940 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 17:56:24,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 17:56:24,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 17:56:24,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 17:56:24,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 17:56:24,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 17:56:24,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 17:56:24,962 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 17:56:24,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 17:56:24,963 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 17:56:24,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 17:56:24,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 17:56:24,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 17:56:24,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 17:56:24,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 17:56:24,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 17:56:24,964 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 17:56:24,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 17:56:24,964 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 17:56:24,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 17:56:24,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 17:56:24,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 17:56:24,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 17:56:24,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 17:56:24,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 17:56:24,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 17:56:24,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 17:56:24,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 17:56:24,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 17:56:24,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 17:56:24,966 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 17:56:24,967 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 17:56:24,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 17:56:24,967 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 17:56:25,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 17:56:25,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 17:56:25,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 17:56:25,191 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 17:56:25,194 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 17:56:25,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-03-15 17:56:25,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2a4cd06/2e3ab064dec743f38a0bcc04bdd0f9dd/FLAG4e49508bc [2022-03-15 17:56:25,719 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 17:56:25,720 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-03-15 17:56:25,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2a4cd06/2e3ab064dec743f38a0bcc04bdd0f9dd/FLAG4e49508bc [2022-03-15 17:56:26,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2a4cd06/2e3ab064dec743f38a0bcc04bdd0f9dd [2022-03-15 17:56:26,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 17:56:26,082 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 17:56:26,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 17:56:26,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 17:56:26,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 17:56:26,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55223eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26, skipping insertion in model container [2022-03-15 17:56:26,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 17:56:26,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 17:56:26,292 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-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-03-15 17:56:26,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 17:56:26,453 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 17:56:26,464 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-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-03-15 17:56:26,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 17:56:26,527 INFO L208 MainTranslator]: Completed translation [2022-03-15 17:56:26,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26 WrapperNode [2022-03-15 17:56:26,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 17:56:26,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 17:56:26,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 17:56:26,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 17:56:26,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,571 INFO L137 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-03-15 17:56:26,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 17:56:26,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 17:56:26,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 17:56:26,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 17:56:26,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 17:56:26,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 17:56:26,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 17:56:26,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 17:56:26,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26" (1/1) ... [2022-03-15 17:56:26,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 17:56:26,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 17:56:26,636 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 17:56:26,643 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 17:56:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 17:56:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 17:56:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 17:56:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 17:56:26,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 17:56:26,671 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-03-15 17:56:26,671 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-03-15 17:56:26,671 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-03-15 17:56:26,671 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-03-15 17:56:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-03-15 17:56:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-03-15 17:56:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 17:56:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 17:56:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 17:56:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 17:56:26,675 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 17:56:26,778 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 17:56:26,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 17:56:26,949 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 17:56:26,956 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 17:56:26,956 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 17:56:26,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 05:56:26 BoogieIcfgContainer [2022-03-15 17:56:26,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 17:56:26,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 17:56:26,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 17:56:26,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 17:56:26,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 05:56:26" (1/3) ... [2022-03-15 17:56:26,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f3d6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 05:56:26, skipping insertion in model container [2022-03-15 17:56:26,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 05:56:26" (2/3) ... [2022-03-15 17:56:26,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f3d6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 05:56:26, skipping insertion in model container [2022-03-15 17:56:26,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 05:56:26" (3/3) ... [2022-03-15 17:56:26,966 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-03-15 17:56:26,970 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 17:56:26,970 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 17:56:26,970 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 17:56:26,970 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 17:56:27,005 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,006 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,006 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,006 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,006 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,006 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,007 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,007 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,007 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,007 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,008 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,008 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,008 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,008 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,009 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,009 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,009 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,009 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,009 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,009 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,010 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,010 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,010 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,010 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,011 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,011 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,011 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,011 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,011 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,012 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,012 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,012 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,012 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,013 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,013 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,013 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,016 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,017 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,017 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,017 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,019 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,020 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,020 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,020 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,021 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,021 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,021 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,021 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 17:56:27,022 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 17:56:27,062 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 17:56:27,068 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 17:56:27,068 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 17:56:27,081 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 17:56:27,092 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 199 flow [2022-03-15 17:56:27,098 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 199 flow [2022-03-15 17:56:27,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 199 flow [2022-03-15 17:56:27,158 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2022-03-15 17:56:27,158 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-03-15 17:56:27,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-03-15 17:56:27,166 INFO L116 LiptonReduction]: Number of co-enabled transitions 1620 [2022-03-15 17:56:29,328 INFO L131 LiptonReduction]: Checked pairs total: 2943 [2022-03-15 17:56:29,329 INFO L133 LiptonReduction]: Total number of compositions: 84 [2022-03-15 17:56:29,336 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2022-03-15 17:56:29,375 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 0 states have call successors, (0), 0 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 17:56:29,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 0 states have call successors, (0), 0 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 17:56:29,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-15 17:56:29,385 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:29,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:29,386 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:29,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:29,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1901873557, now seen corresponding path program 1 times [2022-03-15 17:56:29,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:29,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280944321] [2022-03-15 17:56:29,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:29,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:29,632 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 17:56:29,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:29,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280944321] [2022-03-15 17:56:29,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280944321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:29,635 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:29,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 17:56:29,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [862898142] [2022-03-15 17:56:29,637 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:29,639 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:29,654 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2022-03-15 17:56:29,654 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:29,658 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:56:29,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 17:56:29,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:29,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 17:56:29,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 17:56:29,691 INFO L87 Difference]: Start difference. First operand has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 0 states have call successors, (0), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 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 17:56:29,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:29,752 INFO L93 Difference]: Finished difference Result 336 states and 886 transitions. [2022-03-15 17:56:29,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 17:56:29,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-03-15 17:56:29,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:29,772 INFO L225 Difference]: With dead ends: 336 [2022-03-15 17:56:29,772 INFO L226 Difference]: Without dead ends: 320 [2022-03-15 17:56:29,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 17:56:29,778 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:29,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:29,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-03-15 17:56:29,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 286. [2022-03-15 17:56:29,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 2.7228070175438597) internal successors, (776), 285 states have internal predecessors, (776), 0 states have call successors, (0), 0 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 17:56:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 776 transitions. [2022-03-15 17:56:29,851 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 776 transitions. Word has length 8 [2022-03-15 17:56:29,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:29,852 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 776 transitions. [2022-03-15 17:56:29,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 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 17:56:29,852 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 776 transitions. [2022-03-15 17:56:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-03-15 17:56:29,854 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:29,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:29,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 17:56:29,854 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:29,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:29,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1171445861, now seen corresponding path program 1 times [2022-03-15 17:56:29,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:29,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704173312] [2022-03-15 17:56:29,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:29,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:29,996 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 17:56:29,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:29,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704173312] [2022-03-15 17:56:29,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704173312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:29,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:29,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:56:29,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1080004245] [2022-03-15 17:56:29,997 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:29,998 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:29,999 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2022-03-15 17:56:29,999 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:30,046 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1486#(or (not (= ~__unbuffered_p2_EBX~0 0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p0_EAX~0 0)))] [2022-03-15 17:56:30,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 17:56:30,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:30,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 17:56:30,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:30,049 INFO L87 Difference]: Start difference. First operand 286 states and 776 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 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 17:56:30,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:30,104 INFO L93 Difference]: Finished difference Result 298 states and 776 transitions. [2022-03-15 17:56:30,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 17:56:30,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 17:56:30,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:30,108 INFO L225 Difference]: With dead ends: 298 [2022-03-15 17:56:30,108 INFO L226 Difference]: Without dead ends: 298 [2022-03-15 17:56:30,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:30,109 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 20 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:30,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 3 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:30,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-03-15 17:56:30,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 250. [2022-03-15 17:56:30,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 2.6586345381526106) internal successors, (662), 249 states have internal predecessors, (662), 0 states have call successors, (0), 0 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 17:56:30,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 662 transitions. [2022-03-15 17:56:30,127 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 662 transitions. Word has length 9 [2022-03-15 17:56:30,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:30,128 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 662 transitions. [2022-03-15 17:56:30,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 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 17:56:30,128 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 662 transitions. [2022-03-15 17:56:30,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-03-15 17:56:30,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:30,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:30,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 17:56:30,131 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:30,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:30,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1955529548, now seen corresponding path program 1 times [2022-03-15 17:56:30,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:30,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159615699] [2022-03-15 17:56:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:30,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:30,232 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 17:56:30,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:30,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159615699] [2022-03-15 17:56:30,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159615699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:30,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:30,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:56:30,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [279882100] [2022-03-15 17:56:30,237 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:30,238 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:30,240 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2022-03-15 17:56:30,240 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:30,452 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:56:30,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 17:56:30,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:30,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 17:56:30,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 17:56:30,454 INFO L87 Difference]: Start difference. First operand 250 states and 662 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 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 17:56:30,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:30,505 INFO L93 Difference]: Finished difference Result 286 states and 742 transitions. [2022-03-15 17:56:30,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 17:56:30,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 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 10 [2022-03-15 17:56:30,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:30,507 INFO L225 Difference]: With dead ends: 286 [2022-03-15 17:56:30,507 INFO L226 Difference]: Without dead ends: 286 [2022-03-15 17:56:30,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 17:56:30,511 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:30,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 8 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:30,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-15 17:56:30,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 242. [2022-03-15 17:56:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 2.6390041493775933) internal successors, (636), 241 states have internal predecessors, (636), 0 states have call successors, (0), 0 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 17:56:30,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 636 transitions. [2022-03-15 17:56:30,522 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 636 transitions. Word has length 10 [2022-03-15 17:56:30,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:30,523 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 636 transitions. [2022-03-15 17:56:30,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 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 17:56:30,523 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 636 transitions. [2022-03-15 17:56:30,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 17:56:30,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:30,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:30,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 17:56:30,529 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:30,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:30,529 INFO L85 PathProgramCache]: Analyzing trace with hash 477990598, now seen corresponding path program 1 times [2022-03-15 17:56:30,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:30,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215933535] [2022-03-15 17:56:30,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:30,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:30,650 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 17:56:30,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:30,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215933535] [2022-03-15 17:56:30,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215933535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:30,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:30,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 17:56:30,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [774816171] [2022-03-15 17:56:30,651 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:30,653 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:30,654 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 17 transitions. [2022-03-15 17:56:30,654 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:30,684 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:56:30,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 17:56:30,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:30,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 17:56:30,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:30,685 INFO L87 Difference]: Start difference. First operand 242 states and 636 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 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 17:56:30,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:30,739 INFO L93 Difference]: Finished difference Result 358 states and 914 transitions. [2022-03-15 17:56:30,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 17:56:30,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 11 [2022-03-15 17:56:30,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:30,741 INFO L225 Difference]: With dead ends: 358 [2022-03-15 17:56:30,741 INFO L226 Difference]: Without dead ends: 238 [2022-03-15 17:56:30,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 17:56:30,742 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 45 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:30,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 4 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:30,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-03-15 17:56:30,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 210. [2022-03-15 17:56:30,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 2.555023923444976) internal successors, (534), 209 states have internal predecessors, (534), 0 states have call successors, (0), 0 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 17:56:30,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 534 transitions. [2022-03-15 17:56:30,748 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 534 transitions. Word has length 11 [2022-03-15 17:56:30,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:30,748 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 534 transitions. [2022-03-15 17:56:30,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 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 17:56:30,749 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 534 transitions. [2022-03-15 17:56:30,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 17:56:30,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:30,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:30,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 17:56:30,749 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:30,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:30,750 INFO L85 PathProgramCache]: Analyzing trace with hash 491915488, now seen corresponding path program 2 times [2022-03-15 17:56:30,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:30,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253365] [2022-03-15 17:56:30,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:30,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:30,784 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 17:56:30,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:30,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253365] [2022-03-15 17:56:30,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:30,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:30,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 17:56:30,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [574352861] [2022-03-15 17:56:30,785 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:30,786 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:30,787 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 21 transitions. [2022-03-15 17:56:30,788 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:30,839 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:56:30,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 17:56:30,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:30,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 17:56:30,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 17:56:30,840 INFO L87 Difference]: Start difference. First operand 210 states and 534 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 17:56:30,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:30,885 INFO L93 Difference]: Finished difference Result 258 states and 636 transitions. [2022-03-15 17:56:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 17:56:30,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 11 [2022-03-15 17:56:30,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:30,887 INFO L225 Difference]: With dead ends: 258 [2022-03-15 17:56:30,887 INFO L226 Difference]: Without dead ends: 170 [2022-03-15 17:56:30,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:30,888 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:30,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 8 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:30,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-03-15 17:56:30,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-03-15 17:56:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 169 states have (on average 2.42603550295858) internal successors, (410), 169 states have internal predecessors, (410), 0 states have call successors, (0), 0 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 17:56:30,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 410 transitions. [2022-03-15 17:56:30,893 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 410 transitions. Word has length 11 [2022-03-15 17:56:30,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:30,893 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 410 transitions. [2022-03-15 17:56:30,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 17:56:30,893 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 410 transitions. [2022-03-15 17:56:30,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 17:56:30,894 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:30,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:30,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 17:56:30,894 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:30,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:30,895 INFO L85 PathProgramCache]: Analyzing trace with hash 491872708, now seen corresponding path program 3 times [2022-03-15 17:56:30,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:30,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037709285] [2022-03-15 17:56:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:30,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:30,972 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 17:56:30,972 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:30,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037709285] [2022-03-15 17:56:30,972 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037709285] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:30,972 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:30,972 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 17:56:30,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1621021338] [2022-03-15 17:56:30,973 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:30,973 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:30,977 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2022-03-15 17:56:30,978 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:31,052 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:56:31,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 17:56:31,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:31,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 17:56:31,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 17:56:31,053 INFO L87 Difference]: Start difference. First operand 170 states and 410 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 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 17:56:31,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:31,101 INFO L93 Difference]: Finished difference Result 195 states and 432 transitions. [2022-03-15 17:56:31,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 17:56:31,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 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 11 [2022-03-15 17:56:31,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:31,102 INFO L225 Difference]: With dead ends: 195 [2022-03-15 17:56:31,102 INFO L226 Difference]: Without dead ends: 147 [2022-03-15 17:56:31,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:31,105 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 21 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:31,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 9 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:31,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-03-15 17:56:31,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2022-03-15 17:56:31,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 2.2260273972602738) internal successors, (325), 146 states have internal predecessors, (325), 0 states have call successors, (0), 0 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 17:56:31,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 325 transitions. [2022-03-15 17:56:31,112 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 325 transitions. Word has length 11 [2022-03-15 17:56:31,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:31,113 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 325 transitions. [2022-03-15 17:56:31,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 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 17:56:31,113 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 325 transitions. [2022-03-15 17:56:31,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-15 17:56:31,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:31,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:31,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 17:56:31,114 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:31,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:31,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1503821376, now seen corresponding path program 1 times [2022-03-15 17:56:31,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:31,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678990121] [2022-03-15 17:56:31,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:31,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:31,154 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 17:56:31,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:31,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678990121] [2022-03-15 17:56:31,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678990121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:31,154 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:31,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 17:56:31,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1148058817] [2022-03-15 17:56:31,155 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:31,155 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:31,157 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2022-03-15 17:56:31,158 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:31,243 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:56:31,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 17:56:31,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:31,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 17:56:31,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:31,244 INFO L87 Difference]: Start difference. First operand 147 states and 325 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 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 17:56:31,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:31,297 INFO L93 Difference]: Finished difference Result 146 states and 300 transitions. [2022-03-15 17:56:31,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 17:56:31,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 12 [2022-03-15 17:56:31,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:31,299 INFO L225 Difference]: With dead ends: 146 [2022-03-15 17:56:31,299 INFO L226 Difference]: Without dead ends: 115 [2022-03-15 17:56:31,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 17:56:31,302 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 41 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:31,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 10 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:31,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-03-15 17:56:31,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-03-15 17:56:31,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 2.043859649122807) internal successors, (233), 114 states have internal predecessors, (233), 0 states have call successors, (0), 0 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 17:56:31,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 233 transitions. [2022-03-15 17:56:31,306 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 233 transitions. Word has length 12 [2022-03-15 17:56:31,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:31,306 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 233 transitions. [2022-03-15 17:56:31,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 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 17:56:31,306 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 233 transitions. [2022-03-15 17:56:31,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-15 17:56:31,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:31,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:31,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 17:56:31,307 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:31,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:31,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2061650753, now seen corresponding path program 1 times [2022-03-15 17:56:31,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:31,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587745655] [2022-03-15 17:56:31,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:31,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:31,376 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 17:56:31,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:31,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587745655] [2022-03-15 17:56:31,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587745655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:31,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:31,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 17:56:31,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1122294832] [2022-03-15 17:56:31,377 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:31,379 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:31,381 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2022-03-15 17:56:31,381 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:31,460 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [5335#(<= ~__unbuffered_cnt~0 0)] [2022-03-15 17:56:31,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 17:56:31,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:31,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 17:56:31,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 17:56:31,461 INFO L87 Difference]: Start difference. First operand 115 states and 233 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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 17:56:31,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:31,523 INFO L93 Difference]: Finished difference Result 110 states and 221 transitions. [2022-03-15 17:56:31,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 17:56:31,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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 14 [2022-03-15 17:56:31,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:31,524 INFO L225 Difference]: With dead ends: 110 [2022-03-15 17:56:31,524 INFO L226 Difference]: Without dead ends: 92 [2022-03-15 17:56:31,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-15 17:56:31,525 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 60 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:31,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 10 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:31,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-03-15 17:56:31,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 76. [2022-03-15 17:56:31,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 2.08) internal successors, (156), 75 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 156 transitions. [2022-03-15 17:56:31,528 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 156 transitions. Word has length 14 [2022-03-15 17:56:31,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:31,528 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 156 transitions. [2022-03-15 17:56:31,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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 17:56:31,528 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 156 transitions. [2022-03-15 17:56:31,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-03-15 17:56:31,529 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 17:56:31,529 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 17:56:31,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 17:56:31,529 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 17:56:31,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 17:56:31,529 INFO L85 PathProgramCache]: Analyzing trace with hash -32677433, now seen corresponding path program 1 times [2022-03-15 17:56:31,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 17:56:31,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937275087] [2022-03-15 17:56:31,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 17:56:31,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 17:56:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 17:56:31,561 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 17:56:31,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 17:56:31,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937275087] [2022-03-15 17:56:31,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937275087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 17:56:31,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 17:56:31,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 17:56:31,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1220039738] [2022-03-15 17:56:31,562 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 17:56:31,563 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 17:56:31,585 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2022-03-15 17:56:31,585 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 17:56:31,745 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 17:56:31,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 17:56:31,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 17:56:31,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 17:56:31,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 17:56:31,746 INFO L87 Difference]: Start difference. First operand 76 states and 156 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 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 17:56:31,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 17:56:31,775 INFO L93 Difference]: Finished difference Result 75 states and 155 transitions. [2022-03-15 17:56:31,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 17:56:31,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 17:56:31,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 17:56:31,776 INFO L225 Difference]: With dead ends: 75 [2022-03-15 17:56:31,776 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 17:56:31,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 17:56:31,776 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 17:56:31,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 17:56:31,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 17:56:31,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 17:56:31,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 17:56:31,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 17:56:31,778 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-03-15 17:56:31,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 17:56:31,778 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 17:56:31,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 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 17:56:31,778 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 17:56:31,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 17:56:31,780 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-15 17:56:31,780 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-15 17:56:31,780 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-15 17:56:31,781 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-15 17:56:31,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 17:56:31,782 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2022-03-15 17:56:31,784 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 17:56:31,784 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 17:56:31,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 05:56:31 BasicIcfg [2022-03-15 17:56:31,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 17:56:31,787 INFO L158 Benchmark]: Toolchain (without parser) took 5704.94ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 130.4MB in the beginning and 166.3MB in the end (delta: -35.9MB). Peak memory consumption was 6.8MB. Max. memory is 8.0GB. [2022-03-15 17:56:31,787 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 182.5MB. Free memory was 148.6MB in the beginning and 148.5MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 17:56:31,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.15ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 130.1MB in the beginning and 192.5MB in the end (delta: -62.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-15 17:56:31,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.49ms. Allocated memory is still 224.4MB. Free memory was 192.5MB in the beginning and 190.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 17:56:31,787 INFO L158 Benchmark]: Boogie Preprocessor took 32.35ms. Allocated memory is still 224.4MB. Free memory was 190.4MB in the beginning and 188.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 17:56:31,788 INFO L158 Benchmark]: RCFGBuilder took 352.82ms. Allocated memory is still 224.4MB. Free memory was 188.9MB in the beginning and 175.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 17:56:31,788 INFO L158 Benchmark]: TraceAbstraction took 4826.45ms. Allocated memory is still 224.4MB. Free memory was 175.2MB in the beginning and 166.3MB in the end (delta: 8.9MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-03-15 17:56:31,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 182.5MB. Free memory was 148.6MB in the beginning and 148.5MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 442.15ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 130.1MB in the beginning and 192.5MB in the end (delta: -62.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.49ms. Allocated memory is still 224.4MB. Free memory was 192.5MB in the beginning and 190.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.35ms. Allocated memory is still 224.4MB. Free memory was 190.4MB in the beginning and 188.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 352.82ms. Allocated memory is still 224.4MB. Free memory was 188.9MB in the beginning and 175.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4826.45ms. Allocated memory is still 224.4MB. Free memory was 175.2MB in the beginning and 166.3MB in the end (delta: 8.9MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 100 PlacesBefore, 31 PlacesAfterwards, 92 TransitionsBefore, 21 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 84 TotalNumberOfCompositions, 2943 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1820, positive: 1730, positive conditional: 0, positive unconditional: 1730, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 917, positive: 881, positive conditional: 0, positive unconditional: 881, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1820, positive: 849, positive conditional: 0, positive unconditional: 849, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 917, unknown conditional: 0, unknown unconditional: 917] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 115 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 224 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 224 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 206 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 405 IncrementalHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 27 mSDtfsCounter, 405 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=286occurred in iteration=1, 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, 9 MinimizatonAttempts, 170 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 426 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 17:56:31,821 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...