/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:10:14,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:10:14,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:10:15,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:10:15,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:10:15,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:10:15,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:10:15,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:10:15,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:10:15,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:10:15,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:10:15,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:10:15,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:10:15,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:10:15,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:10:15,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:10:15,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:10:15,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:10:15,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:10:15,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:10:15,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:10:15,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:10:15,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:10:15,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:10:15,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:10:15,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:10:15,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:10:15,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:10:15,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:10:15,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:10:15,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:10:15,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:10:15,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:10:15,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:10:15,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:10:15,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:10:15,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:10:15,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:10:15,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:10:15,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:10:15,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:10:15,091 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-SP.epf [2020-10-22 02:10:15,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:10:15,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:10:15,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:10:15,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:10:15,116 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:10:15,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:10:15,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:10:15,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:10:15,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:10:15,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:10:15,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:10:15,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:10:15,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:10:15,118 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:10:15,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:10:15,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:10:15,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:10:15,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:10:15,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:10:15,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:10:15,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:10:15,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:10:15,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:10:15,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:10:15,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:10:15,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:10:15,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:10:15,121 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:10:15,121 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:10:15,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:10:15,122 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:10:15,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:10:15,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:10:15,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:10:15,447 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:10:15,450 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:10:15,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-10-22 02:10:15,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14bc16dad/f0a171a4e8d94cb6baf7253c14cb30f5/FLAGd0254c55b [2020-10-22 02:10:16,099 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:10:16,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-10-22 02:10:16,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14bc16dad/f0a171a4e8d94cb6baf7253c14cb30f5/FLAGd0254c55b [2020-10-22 02:10:16,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14bc16dad/f0a171a4e8d94cb6baf7253c14cb30f5 [2020-10-22 02:10:16,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:10:16,398 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:10:16,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:10:16,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:10:16,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:10:16,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:10:16" (1/1) ... [2020-10-22 02:10:16,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613db1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:16, skipping insertion in model container [2020-10-22 02:10:16,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:10:16" (1/1) ... [2020-10-22 02:10:16,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:10:16,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:10:16,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:10:16,909 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:10:16,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:10:17,035 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:10:17,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17 WrapperNode [2020-10-22 02:10:17,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:10:17,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:10:17,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:10:17,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:10:17,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17" (1/1) ... [2020-10-22 02:10:17,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17" (1/1) ... [2020-10-22 02:10:17,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:10:17,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:10:17,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:10:17,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:10:17,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17" (1/1) ... [2020-10-22 02:10:17,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17" (1/1) ... [2020-10-22 02:10:17,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17" (1/1) ... [2020-10-22 02:10:17,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17" (1/1) ... [2020-10-22 02:10:17,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17" (1/1) ... [2020-10-22 02:10:17,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17" (1/1) ... [2020-10-22 02:10:17,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17" (1/1) ... [2020-10-22 02:10:17,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:10:17,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:10:17,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:10:17,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:10:17,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:10:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:10:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:10:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:10:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:10:17,199 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:10:17,199 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:10:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:10:17,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:10:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:10:17,201 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:10:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:10:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:10:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:10:17,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:10:17,205 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:10:17,616 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:10:17,617 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:10:17,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:10:17 BoogieIcfgContainer [2020-10-22 02:10:17,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:10:17,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:10:17,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:10:17,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:10:17,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:10:16" (1/3) ... [2020-10-22 02:10:17,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2af5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:10:17, skipping insertion in model container [2020-10-22 02:10:17,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:10:17" (2/3) ... [2020-10-22 02:10:17,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2af5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:10:17, skipping insertion in model container [2020-10-22 02:10:17,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:10:17" (3/3) ... [2020-10-22 02:10:17,642 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2020-10-22 02:10:17,656 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:10:17,656 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:10:17,668 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:10:17,669 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:10:17,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,704 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,704 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,705 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,705 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,706 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,706 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,706 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,707 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,707 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,707 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,708 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,708 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,708 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,708 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,708 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,724 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,725 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,728 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,728 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,729 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,729 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:10:17,731 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:10:17,746 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:10:17,768 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:10:17,769 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:10:17,769 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:10:17,769 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:10:17,769 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:10:17,769 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:10:17,770 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:10:17,770 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:10:17,784 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:10:17,785 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:10:17,788 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:10:17,789 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 02:10:17,838 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 02:10:17,838 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:10:17,844 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 02:10:17,847 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 02:10:19,493 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-22 02:10:19,605 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-10-22 02:10:19,606 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-10-22 02:10:19,617 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-22 02:10:19,664 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-22 02:10:19,666 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-22 02:10:19,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:10:19,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:10:19,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:10:19,686 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:10:19,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:10:19,691 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-10-22 02:10:19,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:10:19,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793568576] [2020-10-22 02:10:19,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:10:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:10:19,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:10:19,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793568576] [2020-10-22 02:10:19,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:10:19,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:10:19,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [550254980] [2020-10-22 02:10:19,922 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:10:19,925 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:10:19,939 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:10:19,940 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:10:19,944 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:10:19,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 02:10:19,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:10:19,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 02:10:19,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:10:19,964 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-22 02:10:19,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:10:19,987 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-22 02:10:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 02:10:19,989 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 02:10:19,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:10:20,007 INFO L225 Difference]: With dead ends: 362 [2020-10-22 02:10:20,007 INFO L226 Difference]: Without dead ends: 298 [2020-10-22 02:10:20,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:10:20,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-22 02:10:20,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-22 02:10:20,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-22 02:10:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-22 02:10:20,089 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-22 02:10:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:10:20,091 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-22 02:10:20,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 02:10:20,091 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-22 02:10:20,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:10:20,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:10:20,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:10:20,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:10:20,094 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:10:20,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:10:20,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-10-22 02:10:20,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:10:20,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708831287] [2020-10-22 02:10:20,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:10:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:10:20,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:10:20,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708831287] [2020-10-22 02:10:20,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:10:20,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:10:20,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [820918511] [2020-10-22 02:10:20,231 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:10:20,232 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:10:20,234 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 02:10:20,234 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:10:20,234 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:10:20,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:10:20,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:10:20,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:10:20,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:10:20,237 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-22 02:10:20,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:10:20,284 INFO L93 Difference]: Finished difference Result 330 states and 904 transitions. [2020-10-22 02:10:20,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:10:20,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 02:10:20,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:10:20,288 INFO L225 Difference]: With dead ends: 330 [2020-10-22 02:10:20,288 INFO L226 Difference]: Without dead ends: 266 [2020-10-22 02:10:20,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:10:20,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-22 02:10:20,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-22 02:10:20,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-22 02:10:20,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 744 transitions. [2020-10-22 02:10:20,310 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 744 transitions. Word has length 9 [2020-10-22 02:10:20,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:10:20,311 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 744 transitions. [2020-10-22 02:10:20,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:10:20,311 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 744 transitions. [2020-10-22 02:10:20,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:10:20,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:10:20,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:10:20,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:10:20,314 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:10:20,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:10:20,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1113237188, now seen corresponding path program 1 times [2020-10-22 02:10:20,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:10:20,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14115527] [2020-10-22 02:10:20,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:10:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:10:20,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:10:20,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14115527] [2020-10-22 02:10:20,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:10:20,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:10:20,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2051554798] [2020-10-22 02:10:20,446 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:10:20,447 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:10:20,468 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2020-10-22 02:10:20,469 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:10:20,577 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2647#(not (= ~x~0 1))] [2020-10-22 02:10:20,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:10:20,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:10:20,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:10:20,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:10:20,579 INFO L87 Difference]: Start difference. First operand 266 states and 744 transitions. Second operand 7 states. [2020-10-22 02:10:20,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:10:20,739 INFO L93 Difference]: Finished difference Result 330 states and 870 transitions. [2020-10-22 02:10:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-22 02:10:20,740 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-10-22 02:10:20,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:10:20,741 INFO L225 Difference]: With dead ends: 330 [2020-10-22 02:10:20,742 INFO L226 Difference]: Without dead ends: 150 [2020-10-22 02:10:20,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:10:20,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-22 02:10:20,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-22 02:10:20,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-22 02:10:20,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 368 transitions. [2020-10-22 02:10:20,752 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 368 transitions. Word has length 11 [2020-10-22 02:10:20,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:10:20,752 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 368 transitions. [2020-10-22 02:10:20,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:10:20,753 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 368 transitions. [2020-10-22 02:10:20,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 02:10:20,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:10:20,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:10:20,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:10:20,755 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:10:20,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:10:20,755 INFO L82 PathProgramCache]: Analyzing trace with hash -379618094, now seen corresponding path program 1 times [2020-10-22 02:10:20,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:10:20,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759978459] [2020-10-22 02:10:20,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:10:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:10:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:10:20,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759978459] [2020-10-22 02:10:20,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:10:20,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:10:20,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [763565634] [2020-10-22 02:10:20,833 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:10:20,835 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:10:20,840 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 45 transitions. [2020-10-22 02:10:20,840 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:10:20,882 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:10:20,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:10:20,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:10:20,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:10:20,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:10:20,884 INFO L87 Difference]: Start difference. First operand 150 states and 368 transitions. Second operand 4 states. [2020-10-22 02:10:20,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:10:20,922 INFO L93 Difference]: Finished difference Result 190 states and 440 transitions. [2020-10-22 02:10:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:10:20,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-22 02:10:20,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:10:20,924 INFO L225 Difference]: With dead ends: 190 [2020-10-22 02:10:20,924 INFO L226 Difference]: Without dead ends: 150 [2020-10-22 02:10:20,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:10:20,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-22 02:10:20,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 134. [2020-10-22 02:10:20,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-22 02:10:20,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 312 transitions. [2020-10-22 02:10:20,944 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 312 transitions. Word has length 13 [2020-10-22 02:10:20,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:10:20,944 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 312 transitions. [2020-10-22 02:10:20,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:10:20,945 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 312 transitions. [2020-10-22 02:10:20,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:10:20,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:10:20,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:10:20,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:10:20,948 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:10:20,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:10:20,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1561819538, now seen corresponding path program 1 times [2020-10-22 02:10:20,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:10:20,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492820693] [2020-10-22 02:10:20,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:10:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:10:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:10:21,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492820693] [2020-10-22 02:10:21,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:10:21,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:10:21,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1629458470] [2020-10-22 02:10:21,050 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:10:21,051 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:10:21,056 INFO L252 McrAutomatonBuilder]: Finished intersection with 40 states and 69 transitions. [2020-10-22 02:10:21,057 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:10:21,303 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:10:21,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:10:21,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:10:21,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:10:21,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:10:21,305 INFO L87 Difference]: Start difference. First operand 134 states and 312 transitions. Second operand 5 states. [2020-10-22 02:10:21,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:10:21,340 INFO L93 Difference]: Finished difference Result 166 states and 376 transitions. [2020-10-22 02:10:21,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:10:21,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:10:21,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:10:21,341 INFO L225 Difference]: With dead ends: 166 [2020-10-22 02:10:21,341 INFO L226 Difference]: Without dead ends: 58 [2020-10-22 02:10:21,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:10:21,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-22 02:10:21,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-10-22 02:10:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-22 02:10:21,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 116 transitions. [2020-10-22 02:10:21,345 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 116 transitions. Word has length 14 [2020-10-22 02:10:21,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:10:21,346 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 116 transitions. [2020-10-22 02:10:21,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:10:21,346 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 116 transitions. [2020-10-22 02:10:21,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:10:21,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:10:21,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:10:21,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:10:21,347 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:10:21,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:10:21,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1047574954, now seen corresponding path program 2 times [2020-10-22 02:10:21,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:10:21,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447217024] [2020-10-22 02:10:21,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:10:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:10:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:10:21,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447217024] [2020-10-22 02:10:21,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:10:21,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:10:21,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [961734105] [2020-10-22 02:10:21,426 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:10:21,429 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:10:21,431 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-10-22 02:10:21,432 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:10:21,500 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:10:21,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:10:21,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:10:21,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:10:21,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:10:21,501 INFO L87 Difference]: Start difference. First operand 58 states and 116 transitions. Second operand 5 states. [2020-10-22 02:10:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:10:21,533 INFO L93 Difference]: Finished difference Result 46 states and 84 transitions. [2020-10-22 02:10:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:10:21,534 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:10:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:10:21,535 INFO L225 Difference]: With dead ends: 46 [2020-10-22 02:10:21,535 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:10:21,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:10:21,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:10:21,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:10:21,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:10:21,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:10:21,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-22 02:10:21,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:10:21,537 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:10:21,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:10:21,537 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:10:21,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:10:21,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:10:21,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:10:21 BasicIcfg [2020-10-22 02:10:21,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:10:21,543 INFO L168 Benchmark]: Toolchain (without parser) took 5150.03 ms. Allocated memory was 138.4 MB in the beginning and 251.1 MB in the end (delta: 112.7 MB). Free memory was 99.8 MB in the beginning and 92.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 119.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:10:21,544 INFO L168 Benchmark]: CDTParser took 1.93 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 02:10:21,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.36 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.0 MB in the beginning and 157.9 MB in the end (delta: -58.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:10:21,546 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.48 ms. Allocated memory is still 202.4 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:10:21,547 INFO L168 Benchmark]: Boogie Preprocessor took 28.55 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:10:21,547 INFO L168 Benchmark]: RCFGBuilder took 505.33 ms. Allocated memory is still 202.4 MB. Free memory was 154.4 MB in the beginning and 130.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:10:21,548 INFO L168 Benchmark]: TraceAbstraction took 3914.50 ms. Allocated memory was 202.4 MB in the beginning and 251.1 MB in the end (delta: 48.8 MB). Free memory was 129.7 MB in the beginning and 92.9 MB in the end (delta: 36.8 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-10-22 02:10:21,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.93 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 636.36 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.0 MB in the beginning and 157.9 MB in the end (delta: -58.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.48 ms. Allocated memory is still 202.4 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.55 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 505.33 ms. Allocated memory is still 202.4 MB. Free memory was 154.4 MB in the beginning and 130.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3914.50 ms. Allocated memory was 202.4 MB in the beginning and 251.1 MB in the end (delta: 48.8 MB). Free memory was 129.7 MB in the beginning and 92.9 MB in the end (delta: 36.8 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 123 SDtfs, 141 SDslu, 203 SDs, 0 SdLazy, 115 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, 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, 6 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 2181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...