/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/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:35:31,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:35:31,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:35:31,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:35:31,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:35:31,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:35:31,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:35:31,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:35:31,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:35:31,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:35:31,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:35:31,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:35:31,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:35:31,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:35:31,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:35:31,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:35:31,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:35:31,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:35:31,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:35:31,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:35:31,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:35:31,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:35:31,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:35:31,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:35:31,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 00:35:31,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:35:31,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:35:31,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:35:31,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:35:31,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:35:31,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:35:31,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:35:31,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:35:31,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:35:31,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:35:31,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:35:31,698 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 [2020-10-22 00:35:31,747 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:35:31,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:35:31,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:35:31,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:35:31,749 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:35:31,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:35:31,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:35:31,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:35:31,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:35:31,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:35:31,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:35:31,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:35:31,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:35:31,754 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:35:31,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:35:31,755 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:35:31,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:35:31,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:35:31,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:35:31,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:35:31,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:35:31,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:35:31,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:35:31,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:35:31,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:35:31,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:35:31,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:35:31,760 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:35:31,760 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:35:31,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:35:31,761 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:35:32,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:35:32,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:35:32,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:35:32,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:35:32,144 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:35:32,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-10-22 00:35:32,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/848709eab/60e39b1c984e476ab45d2686a8d1fe61/FLAG55acc834a [2020-10-22 00:35:32,805 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:35:32,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-10-22 00:35:32,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/848709eab/60e39b1c984e476ab45d2686a8d1fe61/FLAG55acc834a [2020-10-22 00:35:33,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/848709eab/60e39b1c984e476ab45d2686a8d1fe61 [2020-10-22 00:35:33,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:35:33,096 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:35:33,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:35:33,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:35:33,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:35:33,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:35:33" (1/1) ... [2020-10-22 00:35:33,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6d4935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33, skipping insertion in model container [2020-10-22 00:35:33,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:35:33" (1/1) ... [2020-10-22 00:35:33,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:35:33,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:35:33,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:35:33,642 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:35:33,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:35:33,783 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:35:33,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33 WrapperNode [2020-10-22 00:35:33,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:35:33,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:35:33,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:35:33,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:35:33,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33" (1/1) ... [2020-10-22 00:35:33,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33" (1/1) ... [2020-10-22 00:35:33,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:35:33,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:35:33,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:35:33,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:35:33,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33" (1/1) ... [2020-10-22 00:35:33,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33" (1/1) ... [2020-10-22 00:35:33,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33" (1/1) ... [2020-10-22 00:35:33,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33" (1/1) ... [2020-10-22 00:35:33,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33" (1/1) ... [2020-10-22 00:35:33,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33" (1/1) ... [2020-10-22 00:35:33,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33" (1/1) ... [2020-10-22 00:35:33,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:35:33,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:35:33,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:35:33,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:35:33,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:35:33,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:35:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:35:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:35:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:35:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:35:33,932 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:35:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:35:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:35:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:35:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:35:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:35:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:35:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:35:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:35:33,936 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:35:34,301 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:35:34,301 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:35:34,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:35:34 BoogieIcfgContainer [2020-10-22 00:35:34,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:35:34,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:35:34,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:35:34,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:35:34,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:35:33" (1/3) ... [2020-10-22 00:35:34,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31dbbe06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:35:34, skipping insertion in model container [2020-10-22 00:35:34,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:33" (2/3) ... [2020-10-22 00:35:34,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31dbbe06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:35:34, skipping insertion in model container [2020-10-22 00:35:34,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:35:34" (3/3) ... [2020-10-22 00:35:34,320 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2020-10-22 00:35:34,342 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:35:34,342 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:35:34,353 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:35:34,354 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:35:34,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,388 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,388 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,388 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,389 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,389 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,390 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,390 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,390 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,391 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,391 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,391 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,392 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,392 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,392 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,393 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,393 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,393 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,398 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,399 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,405 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,406 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,409 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,409 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:34,412 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:35:34,425 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 00:35:34,445 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:35:34,445 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:35:34,446 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:35:34,446 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:35:34,446 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:35:34,446 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:35:34,447 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:35:34,447 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:35:34,461 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:35:34,462 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:35:34,466 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:35:34,468 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 00:35:34,525 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 00:35:34,525 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:35:34,533 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 00:35:34,536 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 00:35:35,757 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-22 00:35:36,098 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-22 00:35:36,208 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-22 00:35:36,240 INFO L131 LiptonReduction]: Checked pairs total: 2822 [2020-10-22 00:35:36,241 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-10-22 00:35:36,249 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-22 00:35:36,283 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-22 00:35:36,285 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-22 00:35:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:35:36,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:36,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:36,296 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:36,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:36,303 INFO L82 PathProgramCache]: Analyzing trace with hash 406549293, now seen corresponding path program 1 times [2020-10-22 00:35:36,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:36,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350914986] [2020-10-22 00:35:36,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:35:36,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350914986] [2020-10-22 00:35:36,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:36,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:35:36,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1559057466] [2020-10-22 00:35:36,552 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:36,555 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:36,570 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:35:36,571 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:36,576 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:36,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 00:35:36,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:36,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 00:35:36,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:35:36,591 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-22 00:35:36,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:36,620 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-22 00:35:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 00:35:36,621 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 00:35:36,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:36,639 INFO L225 Difference]: With dead ends: 362 [2020-10-22 00:35:36,640 INFO L226 Difference]: Without dead ends: 298 [2020-10-22 00:35:36,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:35:36,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-22 00:35:36,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-22 00:35:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-22 00:35:36,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-22 00:35:36,722 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-22 00:35:36,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:36,723 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-22 00:35:36,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 00:35:36,723 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-22 00:35:36,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 00:35:36,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:36,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:36,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:35:36,726 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:36,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:36,726 INFO L82 PathProgramCache]: Analyzing trace with hash -281880887, now seen corresponding path program 1 times [2020-10-22 00:35:36,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:36,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164591300] [2020-10-22 00:35:36,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:35:36,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164591300] [2020-10-22 00:35:36,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:36,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:35:36,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1623434246] [2020-10-22 00:35:36,838 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:36,839 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:36,842 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 00:35:36,843 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:36,846 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:36,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:35:36,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:36,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:35:36,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:35:36,849 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-22 00:35:36,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:36,883 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-22 00:35:36,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:35:36,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-22 00:35:36,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:36,890 INFO L225 Difference]: With dead ends: 217 [2020-10-22 00:35:36,890 INFO L226 Difference]: Without dead ends: 217 [2020-10-22 00:35:36,891 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 [2020-10-22 00:35:36,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-22 00:35:36,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-22 00:35:36,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-22 00:35:36,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-22 00:35:36,910 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-22 00:35:36,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:36,910 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-22 00:35:36,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:35:36,910 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-22 00:35:36,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:35:36,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:36,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:36,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:35:36,913 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:36,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:36,913 INFO L82 PathProgramCache]: Analyzing trace with hash -389577111, now seen corresponding path program 1 times [2020-10-22 00:35:36,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:36,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283729054] [2020-10-22 00:35:36,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:35:36,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283729054] [2020-10-22 00:35:36,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:36,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:35:36,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1823794968] [2020-10-22 00:35:36,984 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:36,986 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:36,989 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 36 transitions. [2020-10-22 00:35:36,989 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:37,197 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2431#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:35:37,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:35:37,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:37,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:35:37,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:35:37,199 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 5 states. [2020-10-22 00:35:37,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:37,225 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-22 00:35:37,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:35:37,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 00:35:37,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:37,227 INFO L225 Difference]: With dead ends: 136 [2020-10-22 00:35:37,228 INFO L226 Difference]: Without dead ends: 136 [2020-10-22 00:35:37,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:35:37,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-22 00:35:37,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-22 00:35:37,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-22 00:35:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-22 00:35:37,237 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-22 00:35:37,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:37,237 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-22 00:35:37,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:35:37,238 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-22 00:35:37,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 00:35:37,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:37,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:37,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:35:37,240 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:37,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:37,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1823296511, now seen corresponding path program 1 times [2020-10-22 00:35:37,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:37,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960226137] [2020-10-22 00:35:37,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:37,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:35:37,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960226137] [2020-10-22 00:35:37,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:37,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:35:37,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1099396350] [2020-10-22 00:35:37,313 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:37,314 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:37,318 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 47 transitions. [2020-10-22 00:35:37,319 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:37,486 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2845#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:35:37,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 00:35:37,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:37,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 00:35:37,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-22 00:35:37,488 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 6 states. [2020-10-22 00:35:37,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:37,516 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-22 00:35:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:35:37,517 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-22 00:35:37,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:37,518 INFO L225 Difference]: With dead ends: 109 [2020-10-22 00:35:37,518 INFO L226 Difference]: Without dead ends: 109 [2020-10-22 00:35:37,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-22 00:35:37,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-22 00:35:37,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-22 00:35:37,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-22 00:35:37,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-22 00:35:37,523 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-22 00:35:37,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:37,524 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-22 00:35:37,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 00:35:37,524 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-22 00:35:37,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:35:37,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:37,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:37,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:35:37,526 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:37,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:37,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1915158341, now seen corresponding path program 1 times [2020-10-22 00:35:37,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:37,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258123926] [2020-10-22 00:35:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:37,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:35:37,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258123926] [2020-10-22 00:35:37,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:37,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:35:37,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [674049829] [2020-10-22 00:35:37,603 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:37,605 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:37,611 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 58 transitions. [2020-10-22 00:35:37,611 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:37,640 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:37,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:35:37,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:37,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:35:37,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:35:37,642 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-22 00:35:37,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:37,670 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-22 00:35:37,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:35:37,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-22 00:35:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:37,671 INFO L225 Difference]: With dead ends: 135 [2020-10-22 00:35:37,672 INFO L226 Difference]: Without dead ends: 55 [2020-10-22 00:35:37,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:35:37,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-22 00:35:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-22 00:35:37,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-22 00:35:37,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-22 00:35:37,681 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-22 00:35:37,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:37,681 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-22 00:35:37,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:35:37,682 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-22 00:35:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:35:37,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:37,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:37,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:35:37,686 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:37,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:37,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1566003365, now seen corresponding path program 2 times [2020-10-22 00:35:37,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:37,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192806440] [2020-10-22 00:35:37,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:35:37,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192806440] [2020-10-22 00:35:37,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:37,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:35:37,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1311738318] [2020-10-22 00:35:37,811 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:37,813 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:37,824 INFO L252 McrAutomatonBuilder]: Finished intersection with 58 states and 106 transitions. [2020-10-22 00:35:37,824 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:37,951 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:37,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:35:37,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:37,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:35:37,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:35:37,953 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-22 00:35:37,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:37,988 INFO L93 Difference]: Finished difference Result 69 states and 121 transitions. [2020-10-22 00:35:37,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:35:37,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 00:35:37,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:37,990 INFO L225 Difference]: With dead ends: 69 [2020-10-22 00:35:37,990 INFO L226 Difference]: Without dead ends: 31 [2020-10-22 00:35:37,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:35:37,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-22 00:35:37,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-22 00:35:37,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-22 00:35:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-10-22 00:35:37,993 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 18 [2020-10-22 00:35:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:37,993 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-10-22 00:35:37,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:35:37,993 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-10-22 00:35:37,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:35:37,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:37,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:37,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:35:37,995 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:37,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:37,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1541967813, now seen corresponding path program 3 times [2020-10-22 00:35:37,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:37,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038351428] [2020-10-22 00:35:37,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:38,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:35:38,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038351428] [2020-10-22 00:35:38,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:38,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:35:38,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1009348316] [2020-10-22 00:35:38,053 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:38,055 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:38,065 INFO L252 McrAutomatonBuilder]: Finished intersection with 40 states and 56 transitions. [2020-10-22 00:35:38,066 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:38,113 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:38,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:35:38,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:38,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:35:38,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:35:38,114 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 5 states. [2020-10-22 00:35:38,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:38,158 INFO L93 Difference]: Finished difference Result 30 states and 44 transitions. [2020-10-22 00:35:38,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:35:38,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 00:35:38,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:38,159 INFO L225 Difference]: With dead ends: 30 [2020-10-22 00:35:38,159 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:35:38,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:35:38,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:35:38,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:35:38,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:35:38,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:35:38,161 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-22 00:35:38,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:38,161 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:35:38,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:35:38,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:35:38,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:35:38,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 00:35:38,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:35:38 BasicIcfg [2020-10-22 00:35:38,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:35:38,169 INFO L168 Benchmark]: Toolchain (without parser) took 5078.48 ms. Allocated memory was 140.5 MB in the beginning and 282.1 MB in the end (delta: 141.6 MB). Free memory was 101.3 MB in the beginning and 250.2 MB in the end (delta: -148.9 MB). Peak memory consumption was 118.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:38,170 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 00:35:38,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.97 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 100.3 MB in the beginning and 159.1 MB in the end (delta: -58.8 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:38,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.17 ms. Allocated memory is still 202.9 MB. Free memory was 159.1 MB in the beginning and 156.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:38,172 INFO L168 Benchmark]: Boogie Preprocessor took 28.90 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 155.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:38,173 INFO L168 Benchmark]: RCFGBuilder took 438.79 ms. Allocated memory is still 202.9 MB. Free memory was 155.2 MB in the beginning and 131.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:38,174 INFO L168 Benchmark]: TraceAbstraction took 3861.12 ms. Allocated memory was 202.9 MB in the beginning and 282.1 MB in the end (delta: 79.2 MB). Free memory was 130.8 MB in the beginning and 250.2 MB in the end (delta: -119.5 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:38,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.97 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 100.3 MB in the beginning and 159.1 MB in the end (delta: -58.8 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.17 ms. Allocated memory is still 202.9 MB. Free memory was 159.1 MB in the beginning and 156.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.90 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 155.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.79 ms. Allocated memory is still 202.9 MB. Free memory was 155.2 MB in the beginning and 131.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3861.12 ms. Allocated memory was 202.9 MB in the beginning and 282.1 MB in the end (delta: 79.2 MB). Free memory was 130.8 MB in the beginning and 250.2 MB in the end (delta: -119.5 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 812 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 56 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2822 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 129 SDtfs, 78 SDslu, 191 SDs, 0 SdLazy, 61 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 67 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3355 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...