/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-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:45:34,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:45:34,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:45:34,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:45:34,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:45:34,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:45:34,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:45:34,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:45:34,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:45:34,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:45:34,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:45:34,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:45:34,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:45:34,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:45:34,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:45:34,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:45:34,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:45:34,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:45:34,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:45:34,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:45:34,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:45:34,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:45:34,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:45:34,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:45:34,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 13:45:34,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:45:34,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:45:34,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:45:34,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:45:34,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:45:34,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:45:34,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:45:34,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:45:34,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:45:34,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:45:34,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:45:34,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:45:34,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:45:34,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:45:34,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:45:34,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:45:34,174 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:45:34,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:45:34,175 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:45:34,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:45:34,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:45:34,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:45:34,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:45:34,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:45:34,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:45:34,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:45:34,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:45:34,177 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:45:34,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:45:34,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:45:34,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:45:34,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:45:34,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:45:34,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:45:34,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:45:34,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:45:34,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:45:34,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:45:34,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:45:34,181 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:45:34,181 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:45:34,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:45:34,181 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:45:34,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:45:34,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:45:34,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:45:34,481 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:45:34,481 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:45:34,482 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-10-16 13:45:34,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94dfb21a4/cd894dc7d99a44138100a1181f5bf9c0/FLAG897352648 [2020-10-16 13:45:35,073 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:45:35,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-10-16 13:45:35,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94dfb21a4/cd894dc7d99a44138100a1181f5bf9c0/FLAG897352648 [2020-10-16 13:45:35,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94dfb21a4/cd894dc7d99a44138100a1181f5bf9c0 [2020-10-16 13:45:35,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:45:35,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:45:35,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:45:35,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:45:35,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:45:35,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:35" (1/1) ... [2020-10-16 13:45:35,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765183e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:35, skipping insertion in model container [2020-10-16 13:45:35,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:35" (1/1) ... [2020-10-16 13:45:35,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:45:35,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:45:35,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:45:35,922 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:45:35,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:45:36,047 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:45:36,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36 WrapperNode [2020-10-16 13:45:36,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:45:36,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:45:36,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:45:36,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:45:36,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36" (1/1) ... [2020-10-16 13:45:36,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36" (1/1) ... [2020-10-16 13:45:36,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:45:36,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:45:36,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:45:36,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:45:36,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36" (1/1) ... [2020-10-16 13:45:36,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36" (1/1) ... [2020-10-16 13:45:36,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36" (1/1) ... [2020-10-16 13:45:36,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36" (1/1) ... [2020-10-16 13:45:36,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36" (1/1) ... [2020-10-16 13:45:36,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36" (1/1) ... [2020-10-16 13:45:36,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36" (1/1) ... [2020-10-16 13:45:36,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:45:36,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:45:36,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:45:36,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:45:36,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 13:45:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:45:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:45:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:45:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:45:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:45:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:45:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:45:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:45:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:45:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:45:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 13:45:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 13:45:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:45:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:45:36,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:45:36,210 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:45:36,611 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:45:36,611 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:45:36,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:36 BoogieIcfgContainer [2020-10-16 13:45:36,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:45:36,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:45:36,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:45:36,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:45:36,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:45:35" (1/3) ... [2020-10-16 13:45:36,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f08f94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:36, skipping insertion in model container [2020-10-16 13:45:36,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:36" (2/3) ... [2020-10-16 13:45:36,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f08f94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:36, skipping insertion in model container [2020-10-16 13:45:36,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:36" (3/3) ... [2020-10-16 13:45:36,623 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-10-16 13:45:36,635 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:45:36,636 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:45:36,644 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:45:36,645 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:45:36,676 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,677 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,677 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,677 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,679 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,679 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,681 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,681 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,683 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,683 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,683 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,683 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,688 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,689 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,689 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,689 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,700 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,700 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,701 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,701 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,703 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,704 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,707 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,707 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,707 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,707 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:36,710 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:45:36,723 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 13:45:36,746 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:45:36,746 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:45:36,746 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:45:36,746 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:45:36,747 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:45:36,747 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:45:36,747 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:45:36,747 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:45:36,762 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:45:36,763 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-16 13:45:36,766 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-16 13:45:36,768 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-16 13:45:36,815 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-16 13:45:36,816 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:45:36,822 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-16 13:45:36,825 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-16 13:45:38,135 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-16 13:45:38,196 INFO L132 LiptonReduction]: Checked pairs total: 3047 [2020-10-16 13:45:38,196 INFO L134 LiptonReduction]: Total number of compositions: 64 [2020-10-16 13:45:38,203 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-16 13:45:38,260 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-16 13:45:38,262 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-16 13:45:38,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:45:38,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:38,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:38,274 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:38,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:38,280 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-10-16 13:45:38,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:38,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083541443] [2020-10-16 13:45:38,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:38,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:38,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083541443] [2020-10-16 13:45:38,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:38,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:38,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1062576142] [2020-10-16 13:45:38,475 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:38,478 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:38,493 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-16 13:45:38,494 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:38,498 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:38,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 13:45:38,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:38,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 13:45:38,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:45:38,517 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-16 13:45:38,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:38,553 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-16 13:45:38,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 13:45:38,555 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-16 13:45:38,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:38,582 INFO L225 Difference]: With dead ends: 850 [2020-10-16 13:45:38,582 INFO L226 Difference]: Without dead ends: 706 [2020-10-16 13:45:38,583 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 [2020-10-16 13:45:38,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-16 13:45:38,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-16 13:45:38,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-16 13:45:38,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-16 13:45:38,716 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-16 13:45:38,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:38,718 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-16 13:45:38,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 13:45:38,719 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-16 13:45:38,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:45:38,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:38,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:38,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:45:38,722 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:38,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:38,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-10-16 13:45:38,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:38,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441750030] [2020-10-16 13:45:38,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:38,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:38,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441750030] [2020-10-16 13:45:38,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:38,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:38,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [448886305] [2020-10-16 13:45:38,867 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:38,868 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:38,870 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-16 13:45:38,870 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:38,871 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:38,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:45:38,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:38,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:45:38,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:45:38,874 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-16 13:45:38,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:38,922 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-10-16 13:45:38,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:38,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 13:45:38,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:38,930 INFO L225 Difference]: With dead ends: 778 [2020-10-16 13:45:38,930 INFO L226 Difference]: Without dead ends: 634 [2020-10-16 13:45:38,931 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 [2020-10-16 13:45:38,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-16 13:45:38,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-16 13:45:38,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-16 13:45:38,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-10-16 13:45:38,965 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-10-16 13:45:38,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:38,965 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-10-16 13:45:38,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:45:38,965 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-10-16 13:45:38,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:45:38,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:38,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:38,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:45:38,971 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:38,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:38,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-10-16 13:45:38,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:38,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617395546] [2020-10-16 13:45:38,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:39,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617395546] [2020-10-16 13:45:39,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:39,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:39,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [201840156] [2020-10-16 13:45:39,127 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:39,129 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:39,131 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-10-16 13:45:39,131 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:39,193 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:39,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:39,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:39,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:39,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:39,194 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-10-16 13:45:39,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:39,259 INFO L93 Difference]: Finished difference Result 814 states and 2703 transitions. [2020-10-16 13:45:39,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:45:39,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 13:45:39,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:39,263 INFO L225 Difference]: With dead ends: 814 [2020-10-16 13:45:39,264 INFO L226 Difference]: Without dead ends: 394 [2020-10-16 13:45:39,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:39,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-16 13:45:39,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-16 13:45:39,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-16 13:45:39,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1266 transitions. [2020-10-16 13:45:39,281 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1266 transitions. Word has length 12 [2020-10-16 13:45:39,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:39,281 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1266 transitions. [2020-10-16 13:45:39,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:39,281 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1266 transitions. [2020-10-16 13:45:39,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:45:39,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:39,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:39,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:45:39,283 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:39,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:39,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1921114608, now seen corresponding path program 1 times [2020-10-16 13:45:39,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:39,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198030926] [2020-10-16 13:45:39,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:39,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:39,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198030926] [2020-10-16 13:45:39,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:39,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:39,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2129172439] [2020-10-16 13:45:39,347 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:39,371 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:39,375 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-10-16 13:45:39,375 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:39,386 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:39,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:45:39,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:39,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:45:39,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:45:39,387 INFO L87 Difference]: Start difference. First operand 394 states and 1266 transitions. Second operand 4 states. [2020-10-16 13:45:39,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:39,411 INFO L93 Difference]: Finished difference Result 430 states and 1332 transitions. [2020-10-16 13:45:39,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:39,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 13:45:39,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:39,415 INFO L225 Difference]: With dead ends: 430 [2020-10-16 13:45:39,415 INFO L226 Difference]: Without dead ends: 358 [2020-10-16 13:45:39,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:39,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-16 13:45:39,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-16 13:45:39,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-16 13:45:39,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-10-16 13:45:39,430 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-10-16 13:45:39,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:39,431 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-10-16 13:45:39,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:45:39,431 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-10-16 13:45:39,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:45:39,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:39,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:39,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:45:39,433 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:39,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:39,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-10-16 13:45:39,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:39,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902471193] [2020-10-16 13:45:39,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:39,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902471193] [2020-10-16 13:45:39,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:39,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:39,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [215188237] [2020-10-16 13:45:39,494 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:39,495 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:39,499 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 34 transitions. [2020-10-16 13:45:39,500 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:39,551 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:39,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:39,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:39,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:39,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:39,552 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-10-16 13:45:39,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:39,609 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-10-16 13:45:39,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:45:39,609 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 13:45:39,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:39,612 INFO L225 Difference]: With dead ends: 496 [2020-10-16 13:45:39,612 INFO L226 Difference]: Without dead ends: 262 [2020-10-16 13:45:39,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:39,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-16 13:45:39,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-16 13:45:39,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-16 13:45:39,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-10-16 13:45:39,622 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-10-16 13:45:39,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:39,623 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-10-16 13:45:39,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:39,623 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-10-16 13:45:39,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:45:39,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:39,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:39,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:45:39,625 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:39,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:39,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-10-16 13:45:39,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:39,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123606918] [2020-10-16 13:45:39,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:39,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123606918] [2020-10-16 13:45:39,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:39,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:39,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1808038134] [2020-10-16 13:45:39,680 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:39,682 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:39,688 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-10-16 13:45:39,688 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:39,707 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:39,731 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:39,744 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:39,761 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:39,778 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:39,815 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:39,828 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:39,843 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:39,851 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9912#(not (= 4 ~__unbuffered_cnt~0))] [2020-10-16 13:45:39,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:39,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:39,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:39,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:39,853 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 5 states. [2020-10-16 13:45:39,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:39,925 INFO L93 Difference]: Finished difference Result 263 states and 689 transitions. [2020-10-16 13:45:39,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:45:39,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 13:45:39,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:39,928 INFO L225 Difference]: With dead ends: 263 [2020-10-16 13:45:39,928 INFO L226 Difference]: Without dead ends: 182 [2020-10-16 13:45:39,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:39,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-16 13:45:39,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-16 13:45:39,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-16 13:45:39,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-10-16 13:45:39,935 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 15 [2020-10-16 13:45:39,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:39,936 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-10-16 13:45:39,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:39,936 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-10-16 13:45:39,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:45:39,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:39,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:39,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:45:39,938 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:39,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:39,938 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-10-16 13:45:39,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:39,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436643102] [2020-10-16 13:45:39,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:40,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:40,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436643102] [2020-10-16 13:45:40,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:40,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 13:45:40,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1649385512] [2020-10-16 13:45:40,012 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:40,015 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:40,025 INFO L258 McrAutomatonBuilder]: Finished intersection with 45 states and 77 transitions. [2020-10-16 13:45:40,025 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:40,035 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:40,054 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:40,070 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:40,186 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:40,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 13:45:40,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:40,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 13:45:40,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 13:45:40,188 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-10-16 13:45:40,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:40,253 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-10-16 13:45:40,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:45:40,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-16 13:45:40,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:40,255 INFO L225 Difference]: With dead ends: 165 [2020-10-16 13:45:40,255 INFO L226 Difference]: Without dead ends: 132 [2020-10-16 13:45:40,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:40,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-16 13:45:40,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-16 13:45:40,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-16 13:45:40,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-10-16 13:45:40,261 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-10-16 13:45:40,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:40,261 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-10-16 13:45:40,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 13:45:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-10-16 13:45:40,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 13:45:40,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:40,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:40,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:45:40,263 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:40,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:40,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-10-16 13:45:40,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:40,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006796643] [2020-10-16 13:45:40,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:40,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:40,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006796643] [2020-10-16 13:45:40,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:40,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 13:45:40,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [477346732] [2020-10-16 13:45:40,339 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:40,341 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:40,350 INFO L258 McrAutomatonBuilder]: Finished intersection with 46 states and 75 transitions. [2020-10-16 13:45:40,351 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:40,359 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:40,436 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:40,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:45:40,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:40,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:45:40,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:40,437 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-10-16 13:45:40,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:40,507 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-10-16 13:45:40,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 13:45:40,508 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-16 13:45:40,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:40,510 INFO L225 Difference]: With dead ends: 121 [2020-10-16 13:45:40,510 INFO L226 Difference]: Without dead ends: 112 [2020-10-16 13:45:40,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:40,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-16 13:45:40,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-16 13:45:40,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-16 13:45:40,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-16 13:45:40,514 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-10-16 13:45:40,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:40,515 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-16 13:45:40,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:45:40,515 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-16 13:45:40,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 13:45:40,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:40,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:40,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 13:45:40,517 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:40,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:40,517 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-10-16 13:45:40,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:40,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768023845] [2020-10-16 13:45:40,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:40,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:40,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768023845] [2020-10-16 13:45:40,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:40,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:45:40,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2109769236] [2020-10-16 13:45:40,570 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:40,573 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:40,582 INFO L258 McrAutomatonBuilder]: Finished intersection with 48 states and 77 transitions. [2020-10-16 13:45:40,582 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:40,653 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:40,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:40,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:40,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:40,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:40,654 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-10-16 13:45:40,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:40,688 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-10-16 13:45:40,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:40,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-16 13:45:40,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:40,690 INFO L225 Difference]: With dead ends: 146 [2020-10-16 13:45:40,690 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 13:45:40,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:40,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 13:45:40,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 13:45:40,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 13:45:40,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-16 13:45:40,693 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-10-16 13:45:40,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:40,693 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-16 13:45:40,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:40,693 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-16 13:45:40,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 13:45:40,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:40,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:40,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 13:45:40,694 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:40,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:40,695 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-10-16 13:45:40,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:40,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149220116] [2020-10-16 13:45:40,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:40,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:40,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149220116] [2020-10-16 13:45:40,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:40,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:45:40,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [18708603] [2020-10-16 13:45:40,746 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:40,749 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:40,754 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 31 transitions. [2020-10-16 13:45:40,754 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:40,766 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:40,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:40,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:40,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:40,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:40,767 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-10-16 13:45:40,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:40,795 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-16 13:45:40,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:40,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-16 13:45:40,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:40,795 INFO L225 Difference]: With dead ends: 51 [2020-10-16 13:45:40,795 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:45:40,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:40,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:45:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:45:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:45:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:45:40,797 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-16 13:45:40,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:40,797 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:45:40,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:40,797 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:45:40,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:45:40,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 13:45:40,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:45:40 BasicIcfg [2020-10-16 13:45:40,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:45:40,804 INFO L168 Benchmark]: Toolchain (without parser) took 5439.28 ms. Allocated memory was 139.5 MB in the beginning and 292.0 MB in the end (delta: 152.6 MB). Free memory was 101.5 MB in the beginning and 126.4 MB in the end (delta: -25.0 MB). Peak memory consumption was 127.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:40,805 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 13:45:40,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.44 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 160.3 MB in the end (delta: -59.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:40,806 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.96 ms. Allocated memory is still 202.9 MB. Free memory was 160.3 MB in the beginning and 157.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:40,807 INFO L168 Benchmark]: Boogie Preprocessor took 29.49 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:40,808 INFO L168 Benchmark]: RCFGBuilder took 482.50 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 131.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:40,809 INFO L168 Benchmark]: TraceAbstraction took 4186.12 ms. Allocated memory was 202.9 MB in the beginning and 292.0 MB in the end (delta: 89.1 MB). Free memory was 131.1 MB in the beginning and 126.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 93.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:40,813 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 682.44 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 160.3 MB in the end (delta: -59.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.96 ms. Allocated memory is still 202.9 MB. Free memory was 160.3 MB in the beginning and 157.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.49 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 482.50 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 131.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4186.12 ms. Allocated memory was 202.9 MB in the beginning and 292.0 MB in the end (delta: 89.1 MB). Free memory was 131.1 MB in the beginning and 126.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 93.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 959 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 83 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 93 PlacesBefore, 39 PlacesAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 3047 MoverChecksTotal - PositiveResult [Line: 7]: 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 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 245 SDtfs, 245 SDslu, 446 SDs, 0 SdLazy, 193 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 120 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 6535 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...