/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/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:01:52,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:01:52,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:01:52,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:01:52,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:01:52,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:01:52,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:01:52,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:01:52,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:01:52,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:01:52,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:01:52,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:01:52,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:01:52,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:01:52,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:01:52,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:01:52,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:01:52,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:01:52,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:01:52,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:01:52,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:01:52,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:01:52,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:01:52,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:01:52,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 01:01:52,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:01:52,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:01:52,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:01:52,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:01:52,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:01:52,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:01:52,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:01:52,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:01:52,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:01:52,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:01:52,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:01:52,865 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 [2020-10-06 01:01:52,895 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:01:52,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:01:52,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:01:52,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:01:52,896 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:01:52,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:01:52,897 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:01:52,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:01:52,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:01:52,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:01:52,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:01:52,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:01:52,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:01:52,898 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:01:52,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:01:52,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:01:52,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:01:52,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:01:52,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:01:52,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:01:52,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:01:52,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:01:52,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:01:52,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:01:52,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:01:52,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:01:52,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:01:52,901 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:01:52,901 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:01:52,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:01:52,901 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:01:53,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:01:53,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:01:53,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:01:53,193 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:01:53,194 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:01:53,194 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-10-06 01:01:53,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0a53d70/ec6f39f8c21d44ceaef14431f485552b/FLAG13b40db57 [2020-10-06 01:01:53,776 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:01:53,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-10-06 01:01:53,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0a53d70/ec6f39f8c21d44ceaef14431f485552b/FLAG13b40db57 [2020-10-06 01:01:54,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0a53d70/ec6f39f8c21d44ceaef14431f485552b [2020-10-06 01:01:54,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:01:54,100 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:01:54,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:01:54,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:01:54,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:01:54,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:01:54" (1/1) ... [2020-10-06 01:01:54,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307a4f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54, skipping insertion in model container [2020-10-06 01:01:54,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:01:54" (1/1) ... [2020-10-06 01:01:54,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:01:54,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:01:54,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:01:54,618 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:01:54,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:01:54,754 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:01:54,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54 WrapperNode [2020-10-06 01:01:54,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:01:54,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:01:54,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:01:54,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:01:54,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54" (1/1) ... [2020-10-06 01:01:54,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54" (1/1) ... [2020-10-06 01:01:54,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:01:54,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:01:54,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:01:54,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:01:54,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54" (1/1) ... [2020-10-06 01:01:54,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54" (1/1) ... [2020-10-06 01:01:54,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54" (1/1) ... [2020-10-06 01:01:54,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54" (1/1) ... [2020-10-06 01:01:54,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54" (1/1) ... [2020-10-06 01:01:54,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54" (1/1) ... [2020-10-06 01:01:54,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54" (1/1) ... [2020-10-06 01:01:54,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:01:54,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:01:54,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:01:54,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:01:54,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54" (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 [2020-10-06 01:01:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:01:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:01:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:01:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:01:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:01:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:01:54,911 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:01:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:01:54,911 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:01:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:01:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:01:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:01:54,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:01:54,914 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:01:55,289 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:01:55,290 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:01:55,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:01:55 BoogieIcfgContainer [2020-10-06 01:01:55,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:01:55,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:01:55,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:01:55,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:01:55,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:01:54" (1/3) ... [2020-10-06 01:01:55,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f314a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:01:55, skipping insertion in model container [2020-10-06 01:01:55,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:54" (2/3) ... [2020-10-06 01:01:55,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f314a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:01:55, skipping insertion in model container [2020-10-06 01:01:55,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:01:55" (3/3) ... [2020-10-06 01:01:55,301 INFO L109 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2020-10-06 01:01:55,312 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:01:55,312 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:01:55,319 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:01:55,321 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:01:55,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,350 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,352 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,352 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,353 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,353 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,354 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,357 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,359 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,359 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,367 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,367 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,379 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,379 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,380 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,380 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,382 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,382 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,382 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,383 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:55,397 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 01:01:55,416 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:01:55,416 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:01:55,416 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:01:55,416 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:01:55,417 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:01:55,417 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:01:55,417 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:01:55,417 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:01:55,432 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-06 01:01:55,433 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-06 01:01:55,484 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-06 01:01:55,484 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:01:55,490 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:01:55,493 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-06 01:01:55,517 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-06 01:01:55,517 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:01:55,518 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:01:55,520 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-06 01:01:55,522 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:01:56,707 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2250 [2020-10-06 01:01:56,707 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-10-06 01:01:56,711 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-06 01:01:56,739 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-06 01:01:56,741 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-06 01:01:56,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:01:56,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:56,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:56,750 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:56,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:56,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1626400852, now seen corresponding path program 1 times [2020-10-06 01:01:56,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:56,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361363532] [2020-10-06 01:01:56,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:56,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361363532] [2020-10-06 01:01:56,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:56,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:01:56,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1588407279] [2020-10-06 01:01:56,970 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:56,975 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:56,997 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 01:01:56,997 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:57,002 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:57,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-06 01:01:57,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:57,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-06 01:01:57,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:01:57,020 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-06 01:01:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:57,044 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-06 01:01:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-06 01:01:57,045 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-06 01:01:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:57,065 INFO L225 Difference]: With dead ends: 362 [2020-10-06 01:01:57,065 INFO L226 Difference]: Without dead ends: 298 [2020-10-06 01:01:57,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:01:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-06 01:01:57,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-06 01:01:57,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-06 01:01:57,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-06 01:01:57,161 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-06 01:01:57,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:57,162 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-06 01:01:57,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-06 01:01:57,163 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-06 01:01:57,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:01:57,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:57,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:57,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:01:57,165 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:57,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:57,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1121187596, now seen corresponding path program 1 times [2020-10-06 01:01:57,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:57,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646520067] [2020-10-06 01:01:57,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:57,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:57,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646520067] [2020-10-06 01:01:57,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:57,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:01:57,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1206207770] [2020-10-06 01:01:57,296 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:57,298 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:57,304 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 01:01:57,305 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:57,305 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:57,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:01:57,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:57,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:01:57,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:01:57,309 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-06 01:01:57,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:57,368 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-10-06 01:01:57,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:01:57,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-06 01:01:57,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:57,373 INFO L225 Difference]: With dead ends: 346 [2020-10-06 01:01:57,373 INFO L226 Difference]: Without dead ends: 282 [2020-10-06 01:01:57,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:57,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-06 01:01:57,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-06 01:01:57,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-06 01:01:57,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-10-06 01:01:57,420 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-10-06 01:01:57,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:57,421 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-10-06 01:01:57,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:01:57,421 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-10-06 01:01:57,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:01:57,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:57,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:57,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:01:57,423 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:57,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:57,424 INFO L82 PathProgramCache]: Analyzing trace with hash -397112394, now seen corresponding path program 1 times [2020-10-06 01:01:57,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:57,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760060294] [2020-10-06 01:01:57,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:57,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:57,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760060294] [2020-10-06 01:01:57,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:57,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:01:57,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [746679632] [2020-10-06 01:01:57,487 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:57,487 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:57,489 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-10-06 01:01:57,490 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:57,536 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:57,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:01:57,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:57,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:01:57,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:01:57,538 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-10-06 01:01:57,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:57,561 INFO L93 Difference]: Finished difference Result 310 states and 844 transitions. [2020-10-06 01:01:57,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:01:57,562 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-06 01:01:57,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:57,565 INFO L225 Difference]: With dead ends: 310 [2020-10-06 01:01:57,565 INFO L226 Difference]: Without dead ends: 254 [2020-10-06 01:01:57,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:57,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-06 01:01:57,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-10-06 01:01:57,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-06 01:01:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 708 transitions. [2020-10-06 01:01:57,579 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 708 transitions. Word has length 10 [2020-10-06 01:01:57,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:57,579 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 708 transitions. [2020-10-06 01:01:57,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:01:57,579 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 708 transitions. [2020-10-06 01:01:57,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:01:57,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:57,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:57,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:01:57,582 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:57,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:57,582 INFO L82 PathProgramCache]: Analyzing trace with hash 2136948955, now seen corresponding path program 1 times [2020-10-06 01:01:57,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:57,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109404018] [2020-10-06 01:01:57,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:57,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:57,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109404018] [2020-10-06 01:01:57,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:57,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:01:57,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1150029196] [2020-10-06 01:01:57,671 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:57,673 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:57,678 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 38 transitions. [2020-10-06 01:01:57,678 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:57,769 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:57,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:01:57,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:57,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:01:57,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:57,770 INFO L87 Difference]: Start difference. First operand 254 states and 708 transitions. Second operand 5 states. [2020-10-06 01:01:57,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:57,815 INFO L93 Difference]: Finished difference Result 320 states and 860 transitions. [2020-10-06 01:01:57,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:01:57,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-06 01:01:57,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:57,817 INFO L225 Difference]: With dead ends: 320 [2020-10-06 01:01:57,817 INFO L226 Difference]: Without dead ends: 158 [2020-10-06 01:01:57,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:01:57,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-06 01:01:57,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-06 01:01:57,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-06 01:01:57,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 396 transitions. [2020-10-06 01:01:57,824 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 396 transitions. Word has length 11 [2020-10-06 01:01:57,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:57,824 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 396 transitions. [2020-10-06 01:01:57,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:01:57,825 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 396 transitions. [2020-10-06 01:01:57,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:01:57,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:57,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:57,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:01:57,826 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:57,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:57,827 INFO L82 PathProgramCache]: Analyzing trace with hash 625195173, now seen corresponding path program 1 times [2020-10-06 01:01:57,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:57,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298321261] [2020-10-06 01:01:57,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:57,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:57,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298321261] [2020-10-06 01:01:57,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:57,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:01:57,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1097073055] [2020-10-06 01:01:57,877 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:57,879 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:57,882 INFO L258 McrAutomatonBuilder]: Finished intersection with 26 states and 38 transitions. [2020-10-06 01:01:57,882 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:57,931 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:57,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:01:57,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:57,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:01:57,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:01:57,933 INFO L87 Difference]: Start difference. First operand 158 states and 396 transitions. Second operand 4 states. [2020-10-06 01:01:57,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:57,950 INFO L93 Difference]: Finished difference Result 170 states and 410 transitions. [2020-10-06 01:01:57,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:01:57,950 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-06 01:01:57,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:57,952 INFO L225 Difference]: With dead ends: 170 [2020-10-06 01:01:57,952 INFO L226 Difference]: Without dead ends: 146 [2020-10-06 01:01:57,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:57,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-06 01:01:57,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-06 01:01:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-06 01:01:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-10-06 01:01:57,959 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-10-06 01:01:57,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:57,959 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-10-06 01:01:57,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:01:57,959 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-10-06 01:01:57,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:01:57,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:57,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:57,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:01:57,961 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:57,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:57,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1939864517, now seen corresponding path program 1 times [2020-10-06 01:01:57,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:57,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543353605] [2020-10-06 01:01:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:58,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543353605] [2020-10-06 01:01:58,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:58,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:01:58,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [991799790] [2020-10-06 01:01:58,018 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:58,020 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:58,024 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-10-06 01:01:58,024 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:58,129 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:58,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:01:58,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:58,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:01:58,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:58,130 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-10-06 01:01:58,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:58,169 INFO L93 Difference]: Finished difference Result 176 states and 423 transitions. [2020-10-06 01:01:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:01:58,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-06 01:01:58,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:58,171 INFO L225 Difference]: With dead ends: 176 [2020-10-06 01:01:58,171 INFO L226 Difference]: Without dead ends: 98 [2020-10-06 01:01:58,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:01:58,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-06 01:01:58,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-06 01:01:58,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-06 01:01:58,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-10-06 01:01:58,176 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 13 [2020-10-06 01:01:58,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:58,176 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-10-06 01:01:58,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:01:58,177 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-10-06 01:01:58,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 01:01:58,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:58,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:58,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:01:58,178 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:58,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:58,179 INFO L82 PathProgramCache]: Analyzing trace with hash -484565939, now seen corresponding path program 1 times [2020-10-06 01:01:58,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:58,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495890261] [2020-10-06 01:01:58,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:58,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495890261] [2020-10-06 01:01:58,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:58,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:01:58,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [30608722] [2020-10-06 01:01:58,222 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:58,224 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:58,228 INFO L258 McrAutomatonBuilder]: Finished intersection with 32 states and 48 transitions. [2020-10-06 01:01:58,229 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:58,247 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:01:58,262 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:01:58,272 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:01:58,282 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:01:58,301 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:01:58,311 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:58,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:01:58,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:58,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:01:58,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:01:58,314 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 4 states. [2020-10-06 01:01:58,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:58,353 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-10-06 01:01:58,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:01:58,354 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-06 01:01:58,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:58,354 INFO L225 Difference]: With dead ends: 74 [2020-10-06 01:01:58,354 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:01:58,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:58,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:01:58,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:01:58,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:01:58,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:01:58,357 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-06 01:01:58,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:58,357 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:01:58,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:01:58,358 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:01:58,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:01:58,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:01:58,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:01:58 BasicIcfg [2020-10-06 01:01:58,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:01:58,374 INFO L168 Benchmark]: Toolchain (without parser) took 4273.70 ms. Allocated memory was 139.5 MB in the beginning and 247.5 MB in the end (delta: 108.0 MB). Free memory was 101.3 MB in the beginning and 173.8 MB in the end (delta: -72.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:58,375 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-06 01:01:58,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.86 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 158.6 MB in the end (delta: -57.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:58,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.62 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:58,380 INFO L168 Benchmark]: Boogie Preprocessor took 29.06 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 155.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:58,381 INFO L168 Benchmark]: RCFGBuilder took 452.98 ms. Allocated memory is still 201.9 MB. Free memory was 155.3 MB in the beginning and 133.0 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:58,386 INFO L168 Benchmark]: TraceAbstraction took 3077.17 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 132.4 MB in the beginning and 173.8 MB in the end (delta: -41.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:58,393 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.86 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 158.6 MB in the end (delta: -57.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.62 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.06 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 155.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.98 ms. Allocated memory is still 201.9 MB. Free memory was 155.3 MB in the beginning and 133.0 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3077.17 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 132.4 MB in the beginning and 173.8 MB in the end (delta: -41.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 78 ProgramPointsBefore, 32 ProgramPointsAfterwards, 70 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 637 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2250 CheckedPairsTotal, 55 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 157 SDtfs, 133 SDslu, 203 SDs, 0 SdLazy, 59 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 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, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2110 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...