/usr/bin/java -Xmx16000000000 -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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:09:52,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:09:52,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:09:52,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:09:52,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:09:52,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:09:52,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:09:52,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:09:52,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:09:52,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:09:52,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:09:52,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:09:52,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:09:52,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:09:52,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:09:52,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:09:52,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:09:52,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:09:52,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:09:52,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:09:52,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:09:52,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:09:52,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:09:52,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:09:52,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:09:52,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:09:52,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:09:52,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:09:52,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:09:52,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:09:52,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:09:52,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:09:52,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:09:52,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:09:52,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:09:52,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:09:52,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:09:52,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:09:52,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:09:52,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:09:52,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:09:52,808 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:09:52,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:09:52,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:09:52,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:09:52,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:09:52,858 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:09:52,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:09:52,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:09:52,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:09:52,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:09:52,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:09:52,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:09:52,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:09:52,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:09:52,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:09:52,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:09:52,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:09:52,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:09:52,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:09:52,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:09:52,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:09:52,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:09:52,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:09:52,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:09:52,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:09:52,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:09:52,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:09:52,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:09:52,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:09:52,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:09:53,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:09:53,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:09:53,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:09:53,156 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:09:53,157 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:09:53,158 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2020-10-15 22:09:53,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c270db0/dfe1d6c6e44245b8b0588417eef94998/FLAG23209b2d5 [2020-10-15 22:09:53,712 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:09:53,713 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2020-10-15 22:09:53,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c270db0/dfe1d6c6e44245b8b0588417eef94998/FLAG23209b2d5 [2020-10-15 22:09:54,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c270db0/dfe1d6c6e44245b8b0588417eef94998 [2020-10-15 22:09:54,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:09:54,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:09:54,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:09:54,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:09:54,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:09:54,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:09:54" (1/1) ... [2020-10-15 22:09:54,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7352c49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54, skipping insertion in model container [2020-10-15 22:09:54,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:09:54" (1/1) ... [2020-10-15 22:09:54,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:09:54,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:09:54,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:09:54,599 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:09:54,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:09:54,747 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:09:54,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54 WrapperNode [2020-10-15 22:09:54,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:09:54,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:09:54,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:09:54,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:09:54,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54" (1/1) ... [2020-10-15 22:09:54,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54" (1/1) ... [2020-10-15 22:09:54,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:09:54,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:09:54,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:09:54,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:09:54,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54" (1/1) ... [2020-10-15 22:09:54,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54" (1/1) ... [2020-10-15 22:09:54,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54" (1/1) ... [2020-10-15 22:09:54,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54" (1/1) ... [2020-10-15 22:09:54,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54" (1/1) ... [2020-10-15 22:09:54,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54" (1/1) ... [2020-10-15 22:09:54,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54" (1/1) ... [2020-10-15 22:09:54,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:09:54,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:09:54,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:09:54,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:09:54,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:09:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:09:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:09:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:09:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:09:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:09:54,910 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:09:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:09:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:09:54,911 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:09:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:09:54,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:09:54,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:09:54,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:09:54,913 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:09:55,276 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:09:55,276 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:09:55,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:09:55 BoogieIcfgContainer [2020-10-15 22:09:55,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:09:55,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:09:55,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:09:55,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:09:55,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:09:54" (1/3) ... [2020-10-15 22:09:55,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504715b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:09:55, skipping insertion in model container [2020-10-15 22:09:55,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:09:54" (2/3) ... [2020-10-15 22:09:55,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504715b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:09:55, skipping insertion in model container [2020-10-15 22:09:55,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:09:55" (3/3) ... [2020-10-15 22:09:55,287 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i [2020-10-15 22:09:55,299 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:09:55,299 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:09:55,307 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:09:55,308 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:09:55,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,335 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,335 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,337 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,337 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,338 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,339 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,343 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,343 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,353 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,354 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,354 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,354 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,357 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,357 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:09:55,373 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:09:55,395 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:09:55,395 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:09:55,395 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:09:55,395 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:09:55,395 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:09:55,395 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:09:55,396 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:09:55,396 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:09:55,409 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:09:55,411 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-15 22:09:55,414 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-15 22:09:55,416 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-15 22:09:55,459 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-15 22:09:55,459 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:09:55,464 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-15 22:09:55,467 INFO L117 LiptonReduction]: Number of co-enabled transitions 1186 [2020-10-15 22:09:57,020 INFO L132 LiptonReduction]: Checked pairs total: 2093 [2020-10-15 22:09:57,020 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-15 22:09:57,027 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-15 22:09:57,050 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-15 22:09:57,052 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-15 22:09:57,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:09:57,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:57,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:57,061 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:57,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:57,070 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-10-15 22:09:57,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:57,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949009231] [2020-10-15 22:09:57,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:57,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949009231] [2020-10-15 22:09:57,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:57,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:09:57,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602774879] [2020-10-15 22:09:57,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:09:57,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:57,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:09:57,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:09:57,311 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-15 22:09:57,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:57,356 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-10-15 22:09:57,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:09:57,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 22:09:57,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:57,373 INFO L225 Difference]: With dead ends: 222 [2020-10-15 22:09:57,374 INFO L226 Difference]: Without dead ends: 174 [2020-10-15 22:09:57,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:09:57,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-15 22:09:57,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-10-15 22:09:57,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-15 22:09:57,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-10-15 22:09:57,439 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-10-15 22:09:57,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:57,441 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-10-15 22:09:57,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:09:57,441 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-10-15 22:09:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:09:57,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:57,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:57,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:09:57,444 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:57,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:57,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119381, now seen corresponding path program 1 times [2020-10-15 22:09:57,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:57,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896936904] [2020-10-15 22:09:57,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:57,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:57,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896936904] [2020-10-15 22:09:57,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:57,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:09:57,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689343514] [2020-10-15 22:09:57,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:09:57,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:57,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:09:57,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:09:57,532 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-10-15 22:09:57,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:57,562 INFO L93 Difference]: Finished difference Result 204 states and 513 transitions. [2020-10-15 22:09:57,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:09:57,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 22:09:57,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:57,565 INFO L225 Difference]: With dead ends: 204 [2020-10-15 22:09:57,566 INFO L226 Difference]: Without dead ends: 108 [2020-10-15 22:09:57,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:09:57,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-15 22:09:57,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-15 22:09:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-15 22:09:57,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 253 transitions. [2020-10-15 22:09:57,580 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 253 transitions. Word has length 9 [2020-10-15 22:09:57,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:57,580 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 253 transitions. [2020-10-15 22:09:57,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:09:57,580 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 253 transitions. [2020-10-15 22:09:57,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:09:57,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:57,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:57,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:09:57,582 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:57,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:57,583 INFO L82 PathProgramCache]: Analyzing trace with hash 409264718, now seen corresponding path program 1 times [2020-10-15 22:09:57,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:57,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968607782] [2020-10-15 22:09:57,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:57,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:57,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968607782] [2020-10-15 22:09:57,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:57,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:09:57,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665123015] [2020-10-15 22:09:57,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:09:57,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:57,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:09:57,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:09:57,672 INFO L87 Difference]: Start difference. First operand 108 states and 253 transitions. Second operand 3 states. [2020-10-15 22:09:57,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:57,682 INFO L93 Difference]: Finished difference Result 106 states and 246 transitions. [2020-10-15 22:09:57,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:09:57,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 22:09:57,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:57,684 INFO L225 Difference]: With dead ends: 106 [2020-10-15 22:09:57,684 INFO L226 Difference]: Without dead ends: 106 [2020-10-15 22:09:57,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:09:57,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-15 22:09:57,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-15 22:09:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-15 22:09:57,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 246 transitions. [2020-10-15 22:09:57,695 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 246 transitions. Word has length 11 [2020-10-15 22:09:57,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:57,696 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 246 transitions. [2020-10-15 22:09:57,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:09:57,696 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-10-15 22:09:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:09:57,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:57,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:57,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:09:57,698 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:57,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:57,698 INFO L82 PathProgramCache]: Analyzing trace with hash -197699224, now seen corresponding path program 1 times [2020-10-15 22:09:57,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:57,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663236739] [2020-10-15 22:09:57,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:57,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:57,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663236739] [2020-10-15 22:09:57,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:57,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:09:57,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666040416] [2020-10-15 22:09:57,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:09:57,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:57,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:09:57,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:09:57,786 INFO L87 Difference]: Start difference. First operand 106 states and 246 transitions. Second operand 4 states. [2020-10-15 22:09:57,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:57,810 INFO L93 Difference]: Finished difference Result 138 states and 314 transitions. [2020-10-15 22:09:57,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:09:57,811 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 22:09:57,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:57,812 INFO L225 Difference]: With dead ends: 138 [2020-10-15 22:09:57,812 INFO L226 Difference]: Without dead ends: 60 [2020-10-15 22:09:57,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:09:57,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-15 22:09:57,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-15 22:09:57,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-15 22:09:57,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-10-15 22:09:57,819 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 12 [2020-10-15 22:09:57,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:57,820 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-10-15 22:09:57,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:09:57,820 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-10-15 22:09:57,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:09:57,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:57,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:57,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:09:57,822 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:57,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:57,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 2 times [2020-10-15 22:09:57,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:57,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174111415] [2020-10-15 22:09:57,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:57,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174111415] [2020-10-15 22:09:57,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:57,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:09:57,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545102704] [2020-10-15 22:09:57,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:09:57,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:57,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:09:57,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:09:57,931 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-10-15 22:09:57,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:57,966 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-10-15 22:09:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:09:57,966 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 22:09:57,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:57,967 INFO L225 Difference]: With dead ends: 73 [2020-10-15 22:09:57,967 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 22:09:57,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:09:57,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 22:09:57,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-15 22:09:57,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-15 22:09:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-10-15 22:09:57,974 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-10-15 22:09:57,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:57,974 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-10-15 22:09:57,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:09:57,974 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-10-15 22:09:57,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:09:57,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:57,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:57,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:09:57,976 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:57,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:57,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-10-15 22:09:57,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:57,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503939494] [2020-10-15 22:09:57,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:58,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:58,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503939494] [2020-10-15 22:09:58,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:58,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:09:58,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962277337] [2020-10-15 22:09:58,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:09:58,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:58,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:09:58,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:09:58,091 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-10-15 22:09:58,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:58,145 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-10-15 22:09:58,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:09:58,146 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:09:58,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:58,147 INFO L225 Difference]: With dead ends: 53 [2020-10-15 22:09:58,149 INFO L226 Difference]: Without dead ends: 38 [2020-10-15 22:09:58,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:09:58,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-15 22:09:58,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-15 22:09:58,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-15 22:09:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-10-15 22:09:58,159 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-10-15 22:09:58,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:58,160 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-10-15 22:09:58,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:09:58,160 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-10-15 22:09:58,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:09:58,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:58,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:58,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:09:58,161 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:58,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:58,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-10-15 22:09:58,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:58,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147915176] [2020-10-15 22:09:58,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:58,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147915176] [2020-10-15 22:09:58,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:58,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:09:58,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533450946] [2020-10-15 22:09:58,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:09:58,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:58,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:09:58,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:09:58,258 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-10-15 22:09:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:58,306 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-10-15 22:09:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:09:58,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-15 22:09:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:58,308 INFO L225 Difference]: With dead ends: 35 [2020-10-15 22:09:58,308 INFO L226 Difference]: Without dead ends: 29 [2020-10-15 22:09:58,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:09:58,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-15 22:09:58,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-15 22:09:58,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-15 22:09:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-15 22:09:58,313 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-10-15 22:09:58,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:58,314 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-15 22:09:58,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:09:58,314 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-15 22:09:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 22:09:58,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:09:58,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:09:58,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:09:58,315 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:09:58,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:09:58,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-10-15 22:09:58,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:09:58,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846672135] [2020-10-15 22:09:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:09:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:09:58,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:09:58,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846672135] [2020-10-15 22:09:58,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:09:58,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:09:58,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977625510] [2020-10-15 22:09:58,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:09:58,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:09:58,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:09:58,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:09:58,346 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-10-15 22:09:58,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:09:58,351 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-10-15 22:09:58,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:09:58,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-15 22:09:58,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:09:58,352 INFO L225 Difference]: With dead ends: 28 [2020-10-15 22:09:58,353 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:09:58,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:09:58,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:09:58,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:09:58,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:09:58,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:09:58,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-15 22:09:58,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:09:58,354 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:09:58,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:09:58,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:09:58,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:09:58,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:09:58,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:09:58 BasicIcfg [2020-10-15 22:09:58,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:09:58,361 INFO L168 Benchmark]: Toolchain (without parser) took 4320.51 ms. Allocated memory was 250.6 MB in the beginning and 371.2 MB in the end (delta: 120.6 MB). Free memory was 205.8 MB in the beginning and 262.8 MB in the end (delta: -57.0 MB). Peak memory consumption was 63.6 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:58,362 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:09:58,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.80 ms. Allocated memory was 250.6 MB in the beginning and 314.0 MB in the end (delta: 63.4 MB). Free memory was 205.8 MB in the beginning and 264.9 MB in the end (delta: -59.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:58,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.26 ms. Allocated memory is still 314.0 MB. Free memory was 264.9 MB in the beginning and 262.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:58,365 INFO L168 Benchmark]: Boogie Preprocessor took 24.54 ms. Allocated memory is still 314.0 MB. Free memory was 262.4 MB in the beginning and 259.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:58,366 INFO L168 Benchmark]: RCFGBuilder took 432.74 ms. Allocated memory is still 314.0 MB. Free memory was 259.8 MB in the beginning and 238.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:58,367 INFO L168 Benchmark]: TraceAbstraction took 3079.35 ms. Allocated memory was 314.0 MB in the beginning and 371.2 MB in the end (delta: 57.1 MB). Free memory was 238.0 MB in the beginning and 262.8 MB in the end (delta: -24.8 MB). Peak memory consumption was 32.4 MB. Max. memory is 14.2 GB. [2020-10-15 22:09:58,371 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 707.80 ms. Allocated memory was 250.6 MB in the beginning and 314.0 MB in the end (delta: 63.4 MB). Free memory was 205.8 MB in the beginning and 264.9 MB in the end (delta: -59.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 70.26 ms. Allocated memory is still 314.0 MB. Free memory was 264.9 MB in the beginning and 262.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 24.54 ms. Allocated memory is still 314.0 MB. Free memory was 262.4 MB in the beginning and 259.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 432.74 ms. Allocated memory is still 314.0 MB. Free memory was 259.8 MB in the beginning and 238.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3079.35 ms. Allocated memory was 314.0 MB in the beginning and 371.2 MB in the end (delta: 57.1 MB). Free memory was 238.0 MB in the beginning and 262.8 MB in the end (delta: -24.8 MB). Peak memory consumption was 32.4 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 76 PlacesBefore, 30 PlacesAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 2093 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 125 SDtfs, 102 SDslu, 132 SDs, 0 SdLazy, 102 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 3039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...