/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-bf4350c [2020-09-18 01:49:41,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 01:49:41,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 01:49:41,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 01:49:41,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 01:49:41,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 01:49:41,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 01:49:41,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 01:49:41,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 01:49:41,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 01:49:41,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 01:49:41,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 01:49:41,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 01:49:41,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 01:49:41,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 01:49:41,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 01:49:41,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 01:49:41,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 01:49:41,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 01:49:41,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 01:49:41,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 01:49:41,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 01:49:41,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 01:49:41,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 01:49:41,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 01:49:41,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 01:49:41,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 01:49:41,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 01:49:41,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 01:49:41,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 01:49:41,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 01:49:41,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 01:49:41,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 01:49:41,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 01:49:41,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 01:49:41,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 01:49:41,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 01:49:41,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 01:49:41,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 01:49:41,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 01:49:41,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 01:49:41,884 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 01:49:41,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 01:49:41,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 01:49:41,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 01:49:41,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 01:49:41,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 01:49:41,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 01:49:41,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 01:49:41,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 01:49:41,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 01:49:41,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 01:49:41,887 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 01:49:41,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 01:49:41,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 01:49:41,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 01:49:41,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 01:49:41,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 01:49:41,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 01:49:41,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 01:49:41,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 01:49:41,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 01:49:41,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 01:49:41,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 01:49:41,889 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 01:49:41,889 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 01:49:41,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 01:49:41,890 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 01:49:42,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 01:49:42,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 01:49:42,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 01:49:42,367 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 01:49:42,368 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 01:49:42,369 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-09-18 01:49:42,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39c89dac5/7aae1edda04f418d8d4656d02c2677ee/FLAG607726ffc [2020-09-18 01:49:43,061 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 01:49:43,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-09-18 01:49:43,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39c89dac5/7aae1edda04f418d8d4656d02c2677ee/FLAG607726ffc [2020-09-18 01:49:43,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39c89dac5/7aae1edda04f418d8d4656d02c2677ee [2020-09-18 01:49:43,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 01:49:43,342 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 01:49:43,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 01:49:43,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 01:49:43,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 01:49:43,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:49:43" (1/1) ... [2020-09-18 01:49:43,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2372885a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:43, skipping insertion in model container [2020-09-18 01:49:43,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:49:43" (1/1) ... [2020-09-18 01:49:43,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 01:49:43,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 01:49:43,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:49:43,975 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 01:49:44,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:49:44,134 INFO L208 MainTranslator]: Completed translation [2020-09-18 01:49:44,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44 WrapperNode [2020-09-18 01:49:44,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 01:49:44,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 01:49:44,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 01:49:44,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 01:49:44,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44" (1/1) ... [2020-09-18 01:49:44,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44" (1/1) ... [2020-09-18 01:49:44,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 01:49:44,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 01:49:44,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 01:49:44,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 01:49:44,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44" (1/1) ... [2020-09-18 01:49:44,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44" (1/1) ... [2020-09-18 01:49:44,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44" (1/1) ... [2020-09-18 01:49:44,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44" (1/1) ... [2020-09-18 01:49:44,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44" (1/1) ... [2020-09-18 01:49:44,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44" (1/1) ... [2020-09-18 01:49:44,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44" (1/1) ... [2020-09-18 01:49:44,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 01:49:44,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 01:49:44,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 01:49:44,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 01:49:44,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 01:49:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 01:49:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 01:49:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 01:49:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 01:49:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 01:49:44,319 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 01:49:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 01:49:44,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 01:49:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 01:49:44,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 01:49:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-18 01:49:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-18 01:49:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 01:49:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 01:49:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 01:49:44,324 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 01:49:44,747 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 01:49:44,747 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 01:49:44,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:49:44 BoogieIcfgContainer [2020-09-18 01:49:44,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 01:49:44,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 01:49:44,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 01:49:44,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 01:49:44,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 01:49:43" (1/3) ... [2020-09-18 01:49:44,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed88b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:49:44, skipping insertion in model container [2020-09-18 01:49:44,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:49:44" (2/3) ... [2020-09-18 01:49:44,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed88b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:49:44, skipping insertion in model container [2020-09-18 01:49:44,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:49:44" (3/3) ... [2020-09-18 01:49:44,763 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-09-18 01:49:44,775 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 01:49:44,775 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 01:49:44,786 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 01:49:44,787 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 01:49:44,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,827 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,827 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,827 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,827 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,833 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,833 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,833 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,834 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,841 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,842 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,844 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,844 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,844 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,845 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,847 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,847 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,847 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,848 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:49:44,871 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-18 01:49:44,895 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 01:49:44,895 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 01:49:44,895 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 01:49:44,895 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 01:49:44,896 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 01:49:44,896 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 01:49:44,896 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 01:49:44,896 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 01:49:44,915 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-09-18 01:49:44,918 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-18 01:49:44,971 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-18 01:49:44,971 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:49:44,978 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. [2020-09-18 01:49:44,981 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-18 01:49:45,006 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-18 01:49:45,006 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:49:45,007 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. [2020-09-18 01:49:45,010 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-18 01:49:45,012 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 01:49:46,405 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-09-18 01:49:46,405 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-09-18 01:49:46,410 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-18 01:49:46,469 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-18 01:49:46,472 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-18 01:49:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 01:49:46,483 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:49:46,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:49:46,485 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:49:46,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:49:46,493 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-09-18 01:49:46,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:49:46,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362729262] [2020-09-18 01:49:46,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:49:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:49:46,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:49:46,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362729262] [2020-09-18 01:49:46,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:49:46,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:49:46,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [782953510] [2020-09-18 01:49:46,730 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:49:46,734 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:49:46,752 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-18 01:49:46,753 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:49:46,754 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:49:46,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-18 01:49:46,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:49:46,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-18 01:49:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 01:49:46,779 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-18 01:49:46,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:49:46,822 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-18 01:49:46,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-18 01:49:46,824 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-18 01:49:46,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:49:46,855 INFO L225 Difference]: With dead ends: 850 [2020-09-18 01:49:46,855 INFO L226 Difference]: Without dead ends: 706 [2020-09-18 01:49:46,857 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 [2020-09-18 01:49:46,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-18 01:49:46,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-18 01:49:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-18 01:49:46,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-18 01:49:46,976 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-18 01:49:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:49:46,978 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-18 01:49:46,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-18 01:49:46,978 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-18 01:49:46,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 01:49:46,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:49:46,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:49:46,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 01:49:46,982 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:49:46,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:49:46,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-09-18 01:49:46,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:49:46,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597111202] [2020-09-18 01:49:46,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:49:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:49:47,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:49:47,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597111202] [2020-09-18 01:49:47,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:49:47,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:49:47,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2009627386] [2020-09-18 01:49:47,217 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:49:47,218 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:49:47,220 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-18 01:49:47,220 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:49:47,220 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:49:47,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:49:47,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:49:47,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:49:47,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:49:47,225 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-18 01:49:47,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:49:47,276 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-09-18 01:49:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:49:47,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 01:49:47,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:49:47,284 INFO L225 Difference]: With dead ends: 778 [2020-09-18 01:49:47,284 INFO L226 Difference]: Without dead ends: 634 [2020-09-18 01:49:47,285 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 [2020-09-18 01:49:47,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-18 01:49:47,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-09-18 01:49:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-18 01:49:47,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-09-18 01:49:47,321 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-09-18 01:49:47,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:49:47,321 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-09-18 01:49:47,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:49:47,322 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-09-18 01:49:47,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 01:49:47,329 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:49:47,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:49:47,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 01:49:47,329 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:49:47,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:49:47,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-09-18 01:49:47,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:49:47,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841258191] [2020-09-18 01:49:47,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:49:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:49:47,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:49:47,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841258191] [2020-09-18 01:49:47,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:49:47,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:49:47,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2117629186] [2020-09-18 01:49:47,474 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:49:47,475 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:49:47,478 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-09-18 01:49:47,479 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:49:47,538 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:49:47,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 01:49:47,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:49:47,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 01:49:47,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:49:47,540 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-09-18 01:49:47,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:49:47,645 INFO L93 Difference]: Finished difference Result 814 states and 2703 transitions. [2020-09-18 01:49:47,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 01:49:47,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-18 01:49:47,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:49:47,649 INFO L225 Difference]: With dead ends: 814 [2020-09-18 01:49:47,650 INFO L226 Difference]: Without dead ends: 394 [2020-09-18 01:49:47,650 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 [2020-09-18 01:49:47,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-18 01:49:47,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-09-18 01:49:47,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-18 01:49:47,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1266 transitions. [2020-09-18 01:49:47,665 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1266 transitions. Word has length 12 [2020-09-18 01:49:47,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:49:47,665 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1266 transitions. [2020-09-18 01:49:47,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 01:49:47,666 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1266 transitions. [2020-09-18 01:49:47,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 01:49:47,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:49:47,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:49:47,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 01:49:47,667 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:49:47,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:49:47,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1921114608, now seen corresponding path program 1 times [2020-09-18 01:49:47,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:49:47,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137105690] [2020-09-18 01:49:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:49:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:49:47,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:49:47,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137105690] [2020-09-18 01:49:47,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:49:47,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:49:47,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1475209540] [2020-09-18 01:49:47,804 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:49:47,808 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:49:47,810 INFO L274 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-09-18 01:49:47,810 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:49:47,825 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:49:47,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:49:47,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:49:47,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:49:47,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:49:47,827 INFO L87 Difference]: Start difference. First operand 394 states and 1266 transitions. Second operand 4 states. [2020-09-18 01:49:47,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:49:47,855 INFO L93 Difference]: Finished difference Result 430 states and 1332 transitions. [2020-09-18 01:49:47,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:49:47,856 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-18 01:49:47,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:49:47,860 INFO L225 Difference]: With dead ends: 430 [2020-09-18 01:49:47,860 INFO L226 Difference]: Without dead ends: 358 [2020-09-18 01:49:47,861 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 [2020-09-18 01:49:47,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-09-18 01:49:47,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-09-18 01:49:47,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-09-18 01:49:47,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-09-18 01:49:47,873 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-09-18 01:49:47,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:49:47,874 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-09-18 01:49:47,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:49:47,874 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-09-18 01:49:47,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 01:49:47,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:49:47,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:49:47,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 01:49:47,875 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:49:47,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:49:47,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-09-18 01:49:47,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:49:47,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815453886] [2020-09-18 01:49:47,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:49:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:49:47,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:49:47,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815453886] [2020-09-18 01:49:47,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:49:47,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:49:47,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1680718155] [2020-09-18 01:49:47,967 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:49:47,969 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:49:47,972 INFO L274 McrAutomatonBuilder]: Finished intersection with 24 states and 34 transitions. [2020-09-18 01:49:47,973 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:49:48,047 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:49:48,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 01:49:48,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:49:48,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 01:49:48,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:49:48,048 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-09-18 01:49:48,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:49:48,105 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-09-18 01:49:48,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 01:49:48,105 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-18 01:49:48,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:49:48,108 INFO L225 Difference]: With dead ends: 496 [2020-09-18 01:49:48,108 INFO L226 Difference]: Without dead ends: 262 [2020-09-18 01:49:48,109 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 [2020-09-18 01:49:48,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-18 01:49:48,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-09-18 01:49:48,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-18 01:49:48,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-09-18 01:49:48,117 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-09-18 01:49:48,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:49:48,117 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-09-18 01:49:48,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 01:49:48,118 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-09-18 01:49:48,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 01:49:48,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:49:48,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:49:48,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 01:49:48,119 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:49:48,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:49:48,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-09-18 01:49:48,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:49:48,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117317667] [2020-09-18 01:49:48,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:49:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:49:48,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:49:48,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117317667] [2020-09-18 01:49:48,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:49:48,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:49:48,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [482770105] [2020-09-18 01:49:48,190 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:49:48,192 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:49:48,196 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-09-18 01:49:48,197 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:49:48,226 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:48,277 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:48,289 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:48,313 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:48,327 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:48,349 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:48,363 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:48,376 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:48,384 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9912#(not (= 4 ~__unbuffered_cnt~0))] [2020-09-18 01:49:48,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 01:49:48,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:49:48,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 01:49:48,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:49:48,386 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 5 states. [2020-09-18 01:49:48,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:49:48,477 INFO L93 Difference]: Finished difference Result 263 states and 689 transitions. [2020-09-18 01:49:48,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 01:49:48,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-18 01:49:48,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:49:48,480 INFO L225 Difference]: With dead ends: 263 [2020-09-18 01:49:48,480 INFO L226 Difference]: Without dead ends: 182 [2020-09-18 01:49:48,481 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 [2020-09-18 01:49:48,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-18 01:49:48,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-18 01:49:48,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-18 01:49:48,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-09-18 01:49:48,493 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 15 [2020-09-18 01:49:48,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:49:48,493 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-09-18 01:49:48,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 01:49:48,493 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-09-18 01:49:48,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-18 01:49:48,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:49:48,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:49:48,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 01:49:48,495 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:49:48,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:49:48,496 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-09-18 01:49:48,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:49:48,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041225093] [2020-09-18 01:49:48,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:49:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:49:48,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:49:48,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041225093] [2020-09-18 01:49:48,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:49:48,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-18 01:49:48,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [558239799] [2020-09-18 01:49:48,621 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:49:48,623 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:49:48,629 INFO L274 McrAutomatonBuilder]: Finished intersection with 45 states and 77 transitions. [2020-09-18 01:49:48,630 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:49:48,660 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:48,678 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:48,703 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:48,773 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:49:48,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-18 01:49:48,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:49:48,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-18 01:49:48,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-18 01:49:48,774 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-09-18 01:49:48,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:49:48,844 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-09-18 01:49:48,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 01:49:48,847 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-18 01:49:48,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:49:48,848 INFO L225 Difference]: With dead ends: 165 [2020-09-18 01:49:48,848 INFO L226 Difference]: Without dead ends: 132 [2020-09-18 01:49:48,849 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 [2020-09-18 01:49:48,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-18 01:49:48,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-09-18 01:49:48,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-18 01:49:48,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-09-18 01:49:48,854 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-09-18 01:49:48,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:49:48,855 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-09-18 01:49:48,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-18 01:49:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-09-18 01:49:48,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-18 01:49:48,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:49:48,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:49:48,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-18 01:49:48,857 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:49:48,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:49:48,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-09-18 01:49:48,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:49:48,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172881850] [2020-09-18 01:49:48,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:49:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:49:49,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:49:49,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172881850] [2020-09-18 01:49:49,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:49:49,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-18 01:49:49,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [513778834] [2020-09-18 01:49:49,002 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:49:49,005 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:49:49,014 INFO L274 McrAutomatonBuilder]: Finished intersection with 46 states and 75 transitions. [2020-09-18 01:49:49,015 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:49:49,037 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:49:49,147 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:49:49,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-18 01:49:49,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:49:49,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-18 01:49:49,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-18 01:49:49,149 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-09-18 01:49:49,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:49:49,225 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-09-18 01:49:49,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-18 01:49:49,226 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-18 01:49:49,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:49:49,227 INFO L225 Difference]: With dead ends: 121 [2020-09-18 01:49:49,227 INFO L226 Difference]: Without dead ends: 112 [2020-09-18 01:49:49,227 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 [2020-09-18 01:49:49,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-18 01:49:49,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-18 01:49:49,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-18 01:49:49,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-09-18 01:49:49,234 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-09-18 01:49:49,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:49:49,234 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-09-18 01:49:49,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-18 01:49:49,235 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-09-18 01:49:49,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-18 01:49:49,235 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:49:49,235 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] [2020-09-18 01:49:49,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-18 01:49:49,236 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:49:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:49:49,236 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-09-18 01:49:49,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:49:49,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000166589] [2020-09-18 01:49:49,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:49:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:49:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:49:49,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000166589] [2020-09-18 01:49:49,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:49:49,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-18 01:49:49,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1771749618] [2020-09-18 01:49:49,337 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:49:49,341 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:49:49,349 INFO L274 McrAutomatonBuilder]: Finished intersection with 48 states and 77 transitions. [2020-09-18 01:49:49,349 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:49:49,428 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:49:49,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 01:49:49,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:49:49,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 01:49:49,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:49:49,429 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-09-18 01:49:49,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:49:49,470 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-09-18 01:49:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:49:49,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-18 01:49:49,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:49:49,471 INFO L225 Difference]: With dead ends: 146 [2020-09-18 01:49:49,471 INFO L226 Difference]: Without dead ends: 52 [2020-09-18 01:49:49,472 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 [2020-09-18 01:49:49,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-18 01:49:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-18 01:49:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-18 01:49:49,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-09-18 01:49:49,475 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-09-18 01:49:49,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:49:49,475 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-09-18 01:49:49,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 01:49:49,476 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-09-18 01:49:49,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-18 01:49:49,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:49:49,476 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] [2020-09-18 01:49:49,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-18 01:49:49,477 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:49:49,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:49:49,477 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-09-18 01:49:49,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:49:49,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5009441] [2020-09-18 01:49:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:49:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:49:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:49:49,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5009441] [2020-09-18 01:49:49,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:49:49,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-18 01:49:49,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [114226715] [2020-09-18 01:49:49,551 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:49:49,554 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:49:49,561 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 31 transitions. [2020-09-18 01:49:49,561 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:49:49,572 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:49:49,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 01:49:49,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:49:49,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 01:49:49,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:49:49,573 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-09-18 01:49:49,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:49:49,620 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-09-18 01:49:49,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 01:49:49,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-18 01:49:49,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:49:49,620 INFO L225 Difference]: With dead ends: 51 [2020-09-18 01:49:49,620 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 01:49:49,621 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 [2020-09-18 01:49:49,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 01:49:49,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 01:49:49,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 01:49:49,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 01:49:49,622 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-18 01:49:49,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:49:49,622 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 01:49:49,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 01:49:49,622 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 01:49:49,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 01:49:49,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-18 01:49:49,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 01:49:49 BasicIcfg [2020-09-18 01:49:49,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 01:49:49,630 INFO L168 Benchmark]: Toolchain (without parser) took 6290.27 ms. Allocated memory was 141.0 MB in the beginning and 284.2 MB in the end (delta: 143.1 MB). Free memory was 101.9 MB in the beginning and 250.8 MB in the end (delta: -148.8 MB). Peak memory consumption was 150.8 MB. Max. memory is 7.1 GB. [2020-09-18 01:49:49,631 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-18 01:49:49,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.77 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 160.8 MB in the end (delta: -59.5 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-09-18 01:49:49,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.71 ms. Allocated memory is still 204.5 MB. Free memory was 160.8 MB in the beginning and 158.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-18 01:49:49,634 INFO L168 Benchmark]: Boogie Preprocessor took 35.19 ms. Allocated memory is still 204.5 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-18 01:49:49,635 INFO L168 Benchmark]: RCFGBuilder took 526.28 ms. Allocated memory is still 204.5 MB. Free memory was 156.9 MB in the beginning and 133.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-09-18 01:49:49,636 INFO L168 Benchmark]: TraceAbstraction took 4872.49 ms. Allocated memory was 204.5 MB in the beginning and 284.2 MB in the end (delta: 79.7 MB). Free memory was 132.5 MB in the beginning and 250.8 MB in the end (delta: -118.3 MB). Peak memory consumption was 117.9 MB. Max. memory is 7.1 GB. [2020-09-18 01:49:49,640 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 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 791.77 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 160.8 MB in the end (delta: -59.5 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.71 ms. Allocated memory is still 204.5 MB. Free memory was 160.8 MB in the beginning and 158.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.19 ms. Allocated memory is still 204.5 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 526.28 ms. Allocated memory is still 204.5 MB. Free memory was 156.9 MB in the beginning and 133.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4872.49 ms. Allocated memory was 204.5 MB in the beginning and 284.2 MB in the end (delta: 79.7 MB). Free memory was 132.5 MB in the beginning and 250.8 MB in the end (delta: -118.3 MB). Peak memory consumption was 117.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 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: 4.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, 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, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 120 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s 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...