/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 0.1.25-60655ea [2020-09-16 00:35:36,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 00:35:36,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 00:35:37,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 00:35:37,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 00:35:37,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 00:35:37,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 00:35:37,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 00:35:37,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 00:35:37,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 00:35:37,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 00:35:37,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 00:35:37,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 00:35:37,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 00:35:37,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 00:35:37,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 00:35:37,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 00:35:37,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 00:35:37,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 00:35:37,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 00:35:37,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 00:35:37,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 00:35:37,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 00:35:37,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 00:35:37,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-16 00:35:37,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 00:35:37,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 00:35:37,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 00:35:37,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 00:35:37,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 00:35:37,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 00:35:37,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 00:35:37,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 00:35:37,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 00:35:37,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 00:35:37,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 00:35:37,098 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 [2020-09-16 00:35:37,146 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 00:35:37,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 00:35:37,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 00:35:37,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 00:35:37,149 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 00:35:37,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 00:35:37,149 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 00:35:37,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 00:35:37,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 00:35:37,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 00:35:37,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 00:35:37,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 00:35:37,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 00:35:37,152 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 00:35:37,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 00:35:37,153 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 00:35:37,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 00:35:37,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 00:35:37,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 00:35:37,154 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 00:35:37,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 00:35:37,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 00:35:37,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 00:35:37,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-16 00:35:37,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 00:35:37,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 00:35:37,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 00:35:37,155 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-16 00:35:37,155 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-16 00:35:37,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 00:35:37,156 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-16 00:35:37,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 00:35:37,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 00:35:37,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 00:35:37,668 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 00:35:37,668 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 00:35:37,670 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-09-16 00:35:37,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/374fa564a/34719de2d7354c3f845e614d8121ea07/FLAG77bf568af [2020-09-16 00:35:38,408 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 00:35:38,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-09-16 00:35:38,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/374fa564a/34719de2d7354c3f845e614d8121ea07/FLAG77bf568af [2020-09-16 00:35:38,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/374fa564a/34719de2d7354c3f845e614d8121ea07 [2020-09-16 00:35:38,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 00:35:38,687 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 00:35:38,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 00:35:38,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 00:35:38,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 00:35:38,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:35:38" (1/1) ... [2020-09-16 00:35:38,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14df979a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:38, skipping insertion in model container [2020-09-16 00:35:38,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:35:38" (1/1) ... [2020-09-16 00:35:38,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 00:35:38,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 00:35:39,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 00:35:39,424 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 00:35:39,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 00:35:39,596 INFO L208 MainTranslator]: Completed translation [2020-09-16 00:35:39,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39 WrapperNode [2020-09-16 00:35:39,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 00:35:39,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 00:35:39,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 00:35:39,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 00:35:39,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39" (1/1) ... [2020-09-16 00:35:39,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39" (1/1) ... [2020-09-16 00:35:39,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 00:35:39,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 00:35:39,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 00:35:39,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 00:35:39,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39" (1/1) ... [2020-09-16 00:35:39,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39" (1/1) ... [2020-09-16 00:35:39,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39" (1/1) ... [2020-09-16 00:35:39,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39" (1/1) ... [2020-09-16 00:35:39,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39" (1/1) ... [2020-09-16 00:35:39,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39" (1/1) ... [2020-09-16 00:35:39,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39" (1/1) ... [2020-09-16 00:35:39,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 00:35:39,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 00:35:39,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 00:35:39,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 00:35:39,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39" (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 [2020-09-16 00:35:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 00:35:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-16 00:35:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 00:35:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 00:35:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-16 00:35:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-16 00:35:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-16 00:35:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-16 00:35:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-16 00:35:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-16 00:35:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-16 00:35:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-16 00:35:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-16 00:35:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 00:35:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 00:35:39,788 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 00:35:40,219 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 00:35:40,220 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-16 00:35:40,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:35:40 BoogieIcfgContainer [2020-09-16 00:35:40,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 00:35:40,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 00:35:40,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 00:35:40,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 00:35:40,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 12:35:38" (1/3) ... [2020-09-16 00:35:40,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ac29b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:35:40, skipping insertion in model container [2020-09-16 00:35:40,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:35:39" (2/3) ... [2020-09-16 00:35:40,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ac29b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:35:40, skipping insertion in model container [2020-09-16 00:35:40,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:35:40" (3/3) ... [2020-09-16 00:35:40,236 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-09-16 00:35:40,249 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 00:35:40,249 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-16 00:35:40,260 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-16 00:35:40,261 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 00:35:40,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,299 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,300 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,300 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,300 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,301 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,301 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,305 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,306 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,306 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,307 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,318 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,318 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,322 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,323 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,326 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,327 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,327 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,327 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 00:35:40,353 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-16 00:35:40,382 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 00:35:40,383 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 00:35:40,383 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-16 00:35:40,383 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-16 00:35:40,383 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 00:35:40,383 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 00:35:40,384 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 00:35:40,384 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 00:35:40,405 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-09-16 00:35:40,408 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-16 00:35:40,466 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-16 00:35:40,467 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 00:35:40,475 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. [2020-09-16 00:35:40,483 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-16 00:35:40,537 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-16 00:35:40,537 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 00:35:40,539 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. [2020-09-16 00:35:40,543 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-16 00:35:40,544 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-16 00:35:42,131 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-16 00:35:42,204 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-09-16 00:35:42,204 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-09-16 00:35:42,209 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-16 00:35:42,280 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-16 00:35:42,282 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-16 00:35:42,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-16 00:35:42,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:35:42,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:35:42,300 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:35:42,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:35:42,307 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-09-16 00:35:42,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:35:42,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494843805] [2020-09-16 00:35:42,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:35:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:35:42,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:35:42,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494843805] [2020-09-16 00:35:42,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:35:42,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:35:42,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [129860236] [2020-09-16 00:35:42,560 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:35:42,565 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:35:42,591 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-16 00:35:42,592 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:35:42,608 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:35:42,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-16 00:35:42,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:35:42,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-16 00:35:42,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 00:35:42,639 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-16 00:35:42,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:35:42,685 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-16 00:35:42,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-16 00:35:42,687 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-16 00:35:42,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:35:42,716 INFO L225 Difference]: With dead ends: 850 [2020-09-16 00:35:42,717 INFO L226 Difference]: Without dead ends: 706 [2020-09-16 00:35:42,719 INFO L675 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 [2020-09-16 00:35:42,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-16 00:35:42,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-16 00:35:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-16 00:35:42,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-16 00:35:42,877 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-16 00:35:42,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:35:42,878 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-16 00:35:42,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-16 00:35:42,879 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-16 00:35:42,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-16 00:35:42,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:35:42,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:35:42,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 00:35:42,885 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:35:42,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:35:42,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-09-16 00:35:42,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:35:42,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378955623] [2020-09-16 00:35:42,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:35:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:35:43,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:35:43,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378955623] [2020-09-16 00:35:43,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:35:43,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:35:43,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1649515338] [2020-09-16 00:35:43,144 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:35:43,146 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:35:43,147 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-16 00:35:43,147 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:35:43,148 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:35:43,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:35:43,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:35:43,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:35:43,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:35:43,150 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-16 00:35:43,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:35:43,203 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-09-16 00:35:43,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 00:35:43,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-16 00:35:43,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:35:43,211 INFO L225 Difference]: With dead ends: 778 [2020-09-16 00:35:43,211 INFO L226 Difference]: Without dead ends: 634 [2020-09-16 00:35:43,212 INFO L675 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 [2020-09-16 00:35:43,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-16 00:35:43,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-09-16 00:35:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-16 00:35:43,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-09-16 00:35:43,242 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-09-16 00:35:43,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:35:43,242 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-09-16 00:35:43,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:35:43,243 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-09-16 00:35:43,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-16 00:35:43,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:35:43,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:35:43,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 00:35:43,245 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:35:43,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:35:43,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-09-16 00:35:43,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:35:43,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722828369] [2020-09-16 00:35:43,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:35:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:35:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:35:43,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722828369] [2020-09-16 00:35:43,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:35:43,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:35:43,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2051759870] [2020-09-16 00:35:43,339 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:35:43,341 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:35:43,343 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-09-16 00:35:43,343 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:35:43,399 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:35:43,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:35:43,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:35:43,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:35:43,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:35:43,400 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-09-16 00:35:43,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:35:43,467 INFO L93 Difference]: Finished difference Result 814 states and 2703 transitions. [2020-09-16 00:35:43,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 00:35:43,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-16 00:35:43,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:35:43,471 INFO L225 Difference]: With dead ends: 814 [2020-09-16 00:35:43,472 INFO L226 Difference]: Without dead ends: 394 [2020-09-16 00:35:43,472 INFO L675 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 [2020-09-16 00:35:43,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-16 00:35:43,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-09-16 00:35:43,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-16 00:35:43,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1266 transitions. [2020-09-16 00:35:43,488 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1266 transitions. Word has length 12 [2020-09-16 00:35:43,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:35:43,488 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1266 transitions. [2020-09-16 00:35:43,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:35:43,489 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1266 transitions. [2020-09-16 00:35:43,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-16 00:35:43,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:35:43,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:35:43,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 00:35:43,491 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:35:43,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:35:43,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1921114608, now seen corresponding path program 1 times [2020-09-16 00:35:43,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:35:43,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361972696] [2020-09-16 00:35:43,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:35:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:35:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:35:43,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361972696] [2020-09-16 00:35:43,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:35:43,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 00:35:43,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [196160200] [2020-09-16 00:35:43,615 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:35:43,616 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:35:43,618 INFO L274 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-09-16 00:35:43,619 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:35:43,631 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:35:43,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 00:35:43,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:35:43,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 00:35:43,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 00:35:43,632 INFO L87 Difference]: Start difference. First operand 394 states and 1266 transitions. Second operand 4 states. [2020-09-16 00:35:43,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:35:43,669 INFO L93 Difference]: Finished difference Result 430 states and 1332 transitions. [2020-09-16 00:35:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 00:35:43,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-16 00:35:43,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:35:43,699 INFO L225 Difference]: With dead ends: 430 [2020-09-16 00:35:43,700 INFO L226 Difference]: Without dead ends: 358 [2020-09-16 00:35:43,704 INFO L675 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 [2020-09-16 00:35:43,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-09-16 00:35:43,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-09-16 00:35:43,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-09-16 00:35:43,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-09-16 00:35:43,726 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-09-16 00:35:43,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:35:43,727 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-09-16 00:35:43,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 00:35:43,727 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-09-16 00:35:43,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-16 00:35:43,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:35:43,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:35:43,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 00:35:43,729 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:35:43,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:35:43,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-09-16 00:35:43,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:35:43,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183434764] [2020-09-16 00:35:43,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:35:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:35:43,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:35:43,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183434764] [2020-09-16 00:35:43,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:35:43,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:35:43,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1944021211] [2020-09-16 00:35:43,851 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:35:43,852 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:35:43,856 INFO L274 McrAutomatonBuilder]: Finished intersection with 24 states and 34 transitions. [2020-09-16 00:35:43,856 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:35:43,915 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:35:43,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:35:43,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:35:43,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:35:43,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:35:43,916 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-09-16 00:35:43,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:35:43,976 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-09-16 00:35:43,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 00:35:43,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-16 00:35:43,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:35:43,979 INFO L225 Difference]: With dead ends: 496 [2020-09-16 00:35:43,979 INFO L226 Difference]: Without dead ends: 262 [2020-09-16 00:35:43,980 INFO L675 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 [2020-09-16 00:35:43,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-16 00:35:43,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-09-16 00:35:43,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-16 00:35:43,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-09-16 00:35:43,989 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-09-16 00:35:43,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:35:43,990 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-09-16 00:35:43,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:35:43,990 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-09-16 00:35:43,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-16 00:35:43,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:35:43,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:35:43,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-16 00:35:43,992 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:35:43,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:35:43,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-09-16 00:35:43,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:35:43,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506116706] [2020-09-16 00:35:43,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:35:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:35:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:35:44,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506116706] [2020-09-16 00:35:44,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:35:44,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 00:35:44,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1593233750] [2020-09-16 00:35:44,069 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:35:44,071 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:35:44,077 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-09-16 00:35:44,078 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:35:44,109 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,149 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,161 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,185 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,201 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,222 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,233 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,246 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,254 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9912#(not (= 4 ~__unbuffered_cnt~0))] [2020-09-16 00:35:44,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:35:44,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:35:44,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:35:44,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:35:44,256 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 5 states. [2020-09-16 00:35:44,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:35:44,329 INFO L93 Difference]: Finished difference Result 263 states and 689 transitions. [2020-09-16 00:35:44,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-16 00:35:44,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-16 00:35:44,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:35:44,332 INFO L225 Difference]: With dead ends: 263 [2020-09-16 00:35:44,332 INFO L226 Difference]: Without dead ends: 182 [2020-09-16 00:35:44,332 INFO L675 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 [2020-09-16 00:35:44,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-16 00:35:44,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-16 00:35:44,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-16 00:35:44,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-09-16 00:35:44,338 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 15 [2020-09-16 00:35:44,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:35:44,339 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-09-16 00:35:44,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:35:44,339 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-09-16 00:35:44,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-16 00:35:44,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:35:44,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:35:44,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-16 00:35:44,341 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:35:44,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:35:44,341 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-09-16 00:35:44,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:35:44,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836464717] [2020-09-16 00:35:44,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:35:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:35:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:35:44,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836464717] [2020-09-16 00:35:44,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:35:44,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-16 00:35:44,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2069113679] [2020-09-16 00:35:44,422 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:35:44,424 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:35:44,434 INFO L274 McrAutomatonBuilder]: Finished intersection with 45 states and 77 transitions. [2020-09-16 00:35:44,434 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:35:44,458 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,474 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,494 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,561 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:35:44,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-16 00:35:44,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:35:44,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-16 00:35:44,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-16 00:35:44,563 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-09-16 00:35:44,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:35:44,628 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-09-16 00:35:44,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-16 00:35:44,629 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-16 00:35:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:35:44,630 INFO L225 Difference]: With dead ends: 165 [2020-09-16 00:35:44,630 INFO L226 Difference]: Without dead ends: 132 [2020-09-16 00:35:44,631 INFO L675 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 [2020-09-16 00:35:44,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-16 00:35:44,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-09-16 00:35:44,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-16 00:35:44,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-09-16 00:35:44,636 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-09-16 00:35:44,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:35:44,636 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-09-16 00:35:44,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-16 00:35:44,637 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-09-16 00:35:44,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-16 00:35:44,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:35:44,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 00:35:44,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-16 00:35:44,654 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:35:44,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:35:44,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-09-16 00:35:44,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:35:44,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228353140] [2020-09-16 00:35:44,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:35:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:35:44,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:35:44,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228353140] [2020-09-16 00:35:44,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:35:44,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-16 00:35:44,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [212450407] [2020-09-16 00:35:44,751 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:35:44,754 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:35:44,771 INFO L274 McrAutomatonBuilder]: Finished intersection with 46 states and 75 transitions. [2020-09-16 00:35:44,771 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:35:44,786 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-16 00:35:44,872 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:35:44,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-16 00:35:44,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:35:44,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-16 00:35:44,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-16 00:35:44,873 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-09-16 00:35:44,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:35:44,949 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-09-16 00:35:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-16 00:35:44,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-16 00:35:44,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:35:44,952 INFO L225 Difference]: With dead ends: 121 [2020-09-16 00:35:44,952 INFO L226 Difference]: Without dead ends: 112 [2020-09-16 00:35:44,952 INFO L675 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 [2020-09-16 00:35:44,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-16 00:35:44,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-16 00:35:44,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-16 00:35:44,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-09-16 00:35:44,957 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-09-16 00:35:44,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:35:44,958 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-09-16 00:35:44,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-16 00:35:44,958 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-09-16 00:35:44,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-16 00:35:44,959 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:35:44,959 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] [2020-09-16 00:35:44,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-16 00:35:44,959 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:35:44,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:35:44,960 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-09-16 00:35:44,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:35:44,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520199744] [2020-09-16 00:35:44,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:35:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:35:45,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:35:45,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520199744] [2020-09-16 00:35:45,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:35:45,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-16 00:35:45,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1953744160] [2020-09-16 00:35:45,034 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:35:45,037 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:35:45,053 INFO L274 McrAutomatonBuilder]: Finished intersection with 48 states and 77 transitions. [2020-09-16 00:35:45,054 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:35:45,129 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:35:45,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:35:45,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:35:45,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:35:45,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:35:45,131 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-09-16 00:35:45,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:35:45,167 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-09-16 00:35:45,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 00:35:45,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-16 00:35:45,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:35:45,168 INFO L225 Difference]: With dead ends: 146 [2020-09-16 00:35:45,169 INFO L226 Difference]: Without dead ends: 52 [2020-09-16 00:35:45,169 INFO L675 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 [2020-09-16 00:35:45,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-16 00:35:45,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-16 00:35:45,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-16 00:35:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-09-16 00:35:45,171 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-09-16 00:35:45,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:35:45,172 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-09-16 00:35:45,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:35:45,172 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-09-16 00:35:45,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-16 00:35:45,173 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 00:35:45,173 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] [2020-09-16 00:35:45,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-16 00:35:45,173 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 00:35:45,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 00:35:45,174 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-09-16 00:35:45,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 00:35:45,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476759992] [2020-09-16 00:35:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 00:35:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 00:35:45,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 00:35:45,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476759992] [2020-09-16 00:35:45,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 00:35:45,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-16 00:35:45,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [949587783] [2020-09-16 00:35:45,247 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 00:35:45,250 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 00:35:45,255 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 31 transitions. [2020-09-16 00:35:45,255 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 00:35:45,265 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 00:35:45,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 00:35:45,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 00:35:45,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 00:35:45,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 00:35:45,266 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-09-16 00:35:45,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 00:35:45,293 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-09-16 00:35:45,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 00:35:45,294 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-16 00:35:45,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 00:35:45,294 INFO L225 Difference]: With dead ends: 51 [2020-09-16 00:35:45,294 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 00:35:45,295 INFO L675 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 [2020-09-16 00:35:45,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 00:35:45,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 00:35:45,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 00:35:45,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 00:35:45,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-16 00:35:45,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 00:35:45,296 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 00:35:45,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 00:35:45,296 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 00:35:45,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 00:35:45,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-16 00:35:45,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 12:35:45 BasicIcfg [2020-09-16 00:35:45,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 00:35:45,304 INFO L168 Benchmark]: Toolchain (without parser) took 6623.38 ms. Allocated memory was 144.2 MB in the beginning and 301.5 MB in the end (delta: 157.3 MB). Free memory was 97.6 MB in the beginning and 150.8 MB in the end (delta: -53.2 MB). Peak memory consumption was 104.1 MB. Max. memory is 7.1 GB. [2020-09-16 00:35:45,304 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 117.4 MB in the beginning and 117.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-16 00:35:45,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 907.39 ms. Allocated memory was 144.2 MB in the beginning and 200.3 MB in the end (delta: 56.1 MB). Free memory was 96.9 MB in the beginning and 157.2 MB in the end (delta: -60.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-09-16 00:35:45,306 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.21 ms. Allocated memory is still 200.3 MB. Free memory was 157.2 MB in the beginning and 155.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-16 00:35:45,307 INFO L168 Benchmark]: Boogie Preprocessor took 33.84 ms. Allocated memory is still 200.3 MB. Free memory was 155.1 MB in the beginning and 153.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-16 00:35:45,307 INFO L168 Benchmark]: RCFGBuilder took 534.24 ms. Allocated memory is still 200.3 MB. Free memory was 153.0 MB in the beginning and 128.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-09-16 00:35:45,308 INFO L168 Benchmark]: TraceAbstraction took 5074.41 ms. Allocated memory was 200.3 MB in the beginning and 301.5 MB in the end (delta: 101.2 MB). Free memory was 128.2 MB in the beginning and 150.8 MB in the end (delta: -22.6 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. [2020-09-16 00:35:45,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 117.4 MB in the beginning and 117.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 907.39 ms. Allocated memory was 144.2 MB in the beginning and 200.3 MB in the end (delta: 56.1 MB). Free memory was 96.9 MB in the beginning and 157.2 MB in the end (delta: -60.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.21 ms. Allocated memory is still 200.3 MB. Free memory was 157.2 MB in the beginning and 155.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.84 ms. Allocated memory is still 200.3 MB. Free memory was 155.1 MB in the beginning and 153.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 534.24 ms. Allocated memory is still 200.3 MB. Free memory was 153.0 MB in the beginning and 128.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5074.41 ms. Allocated memory was 200.3 MB in the beginning and 301.5 MB in the end (delta: 101.2 MB). Free memory was 128.2 MB in the beginning and 150.8 MB in the end (delta: -22.6 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 933 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 TotalNumberOfCompositions - 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: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 245 SDtfs, 245 SDslu, 446 SDs, 0 SdLazy, 193 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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, 0.2s SatisfiabilityAnalysisTime, 0.7s 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...