/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/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 23:56:22,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 23:56:22,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 23:56:22,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 23:56:22,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 23:56:22,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 23:56:22,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 23:56:22,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 23:56:22,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 23:56:22,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 23:56:22,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 23:56:22,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 23:56:22,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 23:56:22,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 23:56:22,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 23:56:22,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 23:56:22,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 23:56:22,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 23:56:22,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 23:56:22,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 23:56:22,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 23:56:22,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 23:56:22,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 23:56:22,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 23:56:22,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-15 23:56:22,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-15 23:56:22,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-15 23:56:22,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-15 23:56:22,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-15 23:56:22,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-15 23:56:22,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 23:56:22,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 23:56:22,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 23:56:22,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 23:56:22,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 23:56:22,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 23:56:22,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 23:56:22,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 23:56:22,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 23:56:22,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 23:56:22,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 23:56:22,800 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-15 23:56:22,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 23:56:22,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 23:56:22,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 23:56:22,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 23:56:22,829 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 23:56:22,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 23:56:22,829 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 23:56:22,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 23:56:22,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 23:56:22,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 23:56:22,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 23:56:22,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 23:56:22,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 23:56:22,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 23:56:22,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 23:56:22,831 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 23:56:22,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 23:56:22,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 23:56:22,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 23:56:22,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 23:56:22,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 23:56:22,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 23:56:22,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 23:56:22,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 23:56:22,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 23:56:22,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 23:56:22,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 23:56:22,833 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 23:56:22,833 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 23:56:22,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 23:56:22,834 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 23:56:23,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 23:56:23,297 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 23:56:23,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 23:56:23,307 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 23:56:23,308 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 23:56:23,311 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-09-15 23:56:23,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69d2f8d75/7834bf9e1fb04bb1925284439d79514e/FLAGc6f0d468a [2020-09-15 23:56:24,098 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 23:56:24,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-09-15 23:56:24,117 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69d2f8d75/7834bf9e1fb04bb1925284439d79514e/FLAGc6f0d468a [2020-09-15 23:56:24,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69d2f8d75/7834bf9e1fb04bb1925284439d79514e [2020-09-15 23:56:24,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 23:56:24,294 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 23:56:24,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 23:56:24,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 23:56:24,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 23:56:24,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:56:24" (1/1) ... [2020-09-15 23:56:24,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a5f585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:24, skipping insertion in model container [2020-09-15 23:56:24,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:56:24" (1/1) ... [2020-09-15 23:56:24,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 23:56:24,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 23:56:24,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:56:24,980 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 23:56:25,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:56:25,108 INFO L208 MainTranslator]: Completed translation [2020-09-15 23:56:25,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25 WrapperNode [2020-09-15 23:56:25,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 23:56:25,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 23:56:25,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 23:56:25,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 23:56:25,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25" (1/1) ... [2020-09-15 23:56:25,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25" (1/1) ... [2020-09-15 23:56:25,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 23:56:25,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 23:56:25,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 23:56:25,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 23:56:25,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25" (1/1) ... [2020-09-15 23:56:25,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25" (1/1) ... [2020-09-15 23:56:25,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25" (1/1) ... [2020-09-15 23:56:25,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25" (1/1) ... [2020-09-15 23:56:25,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25" (1/1) ... [2020-09-15 23:56:25,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25" (1/1) ... [2020-09-15 23:56:25,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25" (1/1) ... [2020-09-15 23:56:25,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 23:56:25,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 23:56:25,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 23:56:25,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 23:56:25,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 23:56:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 23:56:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 23:56:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 23:56:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 23:56:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 23:56:25,299 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 23:56:25,300 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 23:56:25,300 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 23:56:25,300 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 23:56:25,300 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 23:56:25,301 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-15 23:56:25,301 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-15 23:56:25,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 23:56:25,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 23:56:25,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 23:56:25,305 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 23:56:25,735 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 23:56:25,736 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 23:56:25,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:56:25 BoogieIcfgContainer [2020-09-15 23:56:25,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 23:56:25,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 23:56:25,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 23:56:25,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 23:56:25,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:56:24" (1/3) ... [2020-09-15 23:56:25,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc3edbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:56:25, skipping insertion in model container [2020-09-15 23:56:25,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:56:25" (2/3) ... [2020-09-15 23:56:25,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc3edbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:56:25, skipping insertion in model container [2020-09-15 23:56:25,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:56:25" (3/3) ... [2020-09-15 23:56:25,752 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2020-09-15 23:56:25,764 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 23:56:25,764 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 23:56:25,775 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 23:56:25,777 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 23:56:25,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,811 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,811 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,813 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,813 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,815 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,815 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,816 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,816 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,817 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,817 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,817 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,817 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,822 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,823 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,823 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,823 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,832 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,833 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,835 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,835 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,836 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,836 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,838 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,839 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,839 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,839 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:56:25,862 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-15 23:56:25,887 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 23:56:25,887 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 23:56:25,887 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 23:56:25,888 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 23:56:25,888 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 23:56:25,888 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 23:56:25,888 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 23:56:25,888 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 23:56:25,905 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-09-15 23:56:25,907 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-15 23:56:25,958 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-15 23:56:25,959 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:56:25,965 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-15 23:56:25,969 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-15 23:56:25,997 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-15 23:56:25,998 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:56:25,999 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-15 23:56:26,002 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-15 23:56:26,003 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 23:56:27,626 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-09-15 23:56:27,767 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-09-15 23:56:27,848 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3093 [2020-09-15 23:56:27,849 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-09-15 23:56:27,854 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-09-15 23:56:27,921 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-09-15 23:56:27,923 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-09-15 23:56:27,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 23:56:27,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:56:27,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:56:27,943 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:56:27,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:56:27,951 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-09-15 23:56:27,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:56:27,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810859864] [2020-09-15 23:56:27,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:56:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:56:28,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:56:28,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810859864] [2020-09-15 23:56:28,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:56:28,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 23:56:28,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [741686305] [2020-09-15 23:56:28,249 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:56:28,253 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:56:28,272 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-15 23:56:28,273 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:56:28,275 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:56:28,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:56:28,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:56:28,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:56:28,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:56:28,299 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-09-15 23:56:28,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:56:28,352 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-09-15 23:56:28,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:56:28,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-15 23:56:28,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:56:28,382 INFO L225 Difference]: With dead ends: 670 [2020-09-15 23:56:28,382 INFO L226 Difference]: Without dead ends: 526 [2020-09-15 23:56:28,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:56:28,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-15 23:56:28,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-09-15 23:56:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-09-15 23:56:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-09-15 23:56:28,549 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-09-15 23:56:28,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:56:28,552 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-09-15 23:56:28,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:56:28,552 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-09-15 23:56:28,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 23:56:28,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:56:28,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:56:28,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 23:56:28,556 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:56:28,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:56:28,557 INFO L82 PathProgramCache]: Analyzing trace with hash -2027540211, now seen corresponding path program 1 times [2020-09-15 23:56:28,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:56:28,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852669035] [2020-09-15 23:56:28,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:56:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:56:28,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:56:28,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852669035] [2020-09-15 23:56:28,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:56:28,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:56:28,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [740528846] [2020-09-15 23:56:28,695 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:56:28,696 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:56:28,699 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-15 23:56:28,699 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:56:28,759 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:56:28,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:56:28,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:56:28,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:56:28,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:56:28,762 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-09-15 23:56:28,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:56:28,798 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-09-15 23:56:28,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:56:28,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-15 23:56:28,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:56:28,803 INFO L225 Difference]: With dead ends: 724 [2020-09-15 23:56:28,803 INFO L226 Difference]: Without dead ends: 412 [2020-09-15 23:56:28,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:56:28,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-09-15 23:56:28,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-09-15 23:56:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-15 23:56:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-09-15 23:56:28,820 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-09-15 23:56:28,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:56:28,821 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-09-15 23:56:28,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:56:28,821 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-09-15 23:56:28,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 23:56:28,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:56:28,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:56:28,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 23:56:28,824 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:56:28,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:56:28,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1543893440, now seen corresponding path program 1 times [2020-09-15 23:56:28,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:56:28,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607870433] [2020-09-15 23:56:28,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:56:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:56:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:56:28,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607870433] [2020-09-15 23:56:28,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:56:28,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 23:56:28,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [22528595] [2020-09-15 23:56:28,925 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:56:28,928 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:56:28,930 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-09-15 23:56:28,931 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:56:28,952 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:56:28,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:56:28,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:56:28,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:56:28,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:56:28,953 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-09-15 23:56:28,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:56:28,965 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-09-15 23:56:28,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:56:28,966 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-15 23:56:28,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:56:28,969 INFO L225 Difference]: With dead ends: 394 [2020-09-15 23:56:28,969 INFO L226 Difference]: Without dead ends: 394 [2020-09-15 23:56:28,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:56:28,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-15 23:56:28,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-09-15 23:56:28,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-15 23:56:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-09-15 23:56:28,985 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-09-15 23:56:28,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:56:28,986 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-09-15 23:56:28,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:56:28,986 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-09-15 23:56:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 23:56:28,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:56:28,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:56:28,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 23:56:28,993 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:56:28,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:56:28,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1381595750, now seen corresponding path program 1 times [2020-09-15 23:56:28,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:56:28,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2235481] [2020-09-15 23:56:28,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:56:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:56:29,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:56:29,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2235481] [2020-09-15 23:56:29,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:56:29,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:56:29,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1372620091] [2020-09-15 23:56:29,084 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:56:29,086 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:56:29,089 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-09-15 23:56:29,090 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:56:29,117 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:56:29,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:56:29,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:56:29,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:56:29,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:56:29,118 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-09-15 23:56:29,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:56:29,150 INFO L93 Difference]: Finished difference Result 652 states and 1957 transitions. [2020-09-15 23:56:29,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 23:56:29,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-15 23:56:29,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:56:29,154 INFO L225 Difference]: With dead ends: 652 [2020-09-15 23:56:29,154 INFO L226 Difference]: Without dead ends: 340 [2020-09-15 23:56:29,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:56:29,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-15 23:56:29,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 304. [2020-09-15 23:56:29,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-09-15 23:56:29,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 891 transitions. [2020-09-15 23:56:29,167 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 891 transitions. Word has length 13 [2020-09-15 23:56:29,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:56:29,167 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 891 transitions. [2020-09-15 23:56:29,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:56:29,167 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 891 transitions. [2020-09-15 23:56:29,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 23:56:29,168 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:56:29,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:56:29,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 23:56:29,169 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:56:29,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:56:29,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1391724752, now seen corresponding path program 1 times [2020-09-15 23:56:29,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:56:29,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87495265] [2020-09-15 23:56:29,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:56:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:56:29,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:56:29,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87495265] [2020-09-15 23:56:29,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:56:29,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:56:29,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [848641102] [2020-09-15 23:56:29,235 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:56:29,237 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:56:29,240 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-09-15 23:56:29,240 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:56:29,289 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:56:29,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:56:29,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:56:29,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:56:29,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:56:29,290 INFO L87 Difference]: Start difference. First operand 304 states and 891 transitions. Second operand 4 states. [2020-09-15 23:56:29,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:56:29,313 INFO L93 Difference]: Finished difference Result 406 states and 1128 transitions. [2020-09-15 23:56:29,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:56:29,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-15 23:56:29,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:56:29,315 INFO L225 Difference]: With dead ends: 406 [2020-09-15 23:56:29,316 INFO L226 Difference]: Without dead ends: 226 [2020-09-15 23:56:29,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:56:29,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-15 23:56:29,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-15 23:56:29,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-15 23:56:29,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 619 transitions. [2020-09-15 23:56:29,325 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 619 transitions. Word has length 13 [2020-09-15 23:56:29,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:56:29,325 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 619 transitions. [2020-09-15 23:56:29,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:56:29,326 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 619 transitions. [2020-09-15 23:56:29,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 23:56:29,327 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:56:29,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:56:29,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 23:56:29,327 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:56:29,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:56:29,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 1 times [2020-09-15 23:56:29,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:56:29,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540016412] [2020-09-15 23:56:29,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:56:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:56:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:56:29,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540016412] [2020-09-15 23:56:29,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:56:29,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:56:29,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [119489101] [2020-09-15 23:56:29,432 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:56:29,434 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:56:29,439 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-09-15 23:56:29,439 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:56:29,470 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:29,498 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:29,510 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:29,528 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:29,543 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:29,561 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:29,576 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:29,596 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:29,614 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8106#(not (= 4 ~__unbuffered_cnt~0))] [2020-09-15 23:56:29,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:56:29,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:56:29,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:56:29,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:56:29,616 INFO L87 Difference]: Start difference. First operand 226 states and 619 transitions. Second operand 5 states. [2020-09-15 23:56:29,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:56:29,685 INFO L93 Difference]: Finished difference Result 243 states and 599 transitions. [2020-09-15 23:56:29,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:56:29,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-15 23:56:29,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:56:29,687 INFO L225 Difference]: With dead ends: 243 [2020-09-15 23:56:29,687 INFO L226 Difference]: Without dead ends: 162 [2020-09-15 23:56:29,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:56:29,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-15 23:56:29,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-09-15 23:56:29,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-15 23:56:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 369 transitions. [2020-09-15 23:56:29,693 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 369 transitions. Word has length 14 [2020-09-15 23:56:29,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:56:29,693 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 369 transitions. [2020-09-15 23:56:29,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:56:29,694 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 369 transitions. [2020-09-15 23:56:29,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-15 23:56:29,694 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:56:29,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:56:29,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 23:56:29,695 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:56:29,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:56:29,695 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-09-15 23:56:29,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:56:29,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462019258] [2020-09-15 23:56:29,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:56:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:56:29,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:56:29,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462019258] [2020-09-15 23:56:29,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:56:29,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 23:56:29,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [136550066] [2020-09-15 23:56:29,793 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:56:29,795 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:56:29,800 INFO L274 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-09-15 23:56:29,801 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:56:29,848 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:29,869 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:29,889 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:29,941 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:56:29,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-15 23:56:29,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:56:29,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-15 23:56:29,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-15 23:56:29,943 INFO L87 Difference]: Start difference. First operand 162 states and 369 transitions. Second operand 6 states. [2020-09-15 23:56:30,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:56:30,008 INFO L93 Difference]: Finished difference Result 158 states and 337 transitions. [2020-09-15 23:56:30,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:56:30,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-09-15 23:56:30,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:56:30,010 INFO L225 Difference]: With dead ends: 158 [2020-09-15 23:56:30,010 INFO L226 Difference]: Without dead ends: 125 [2020-09-15 23:56:30,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:56:30,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-15 23:56:30,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-09-15 23:56:30,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-15 23:56:30,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-09-15 23:56:30,015 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 16 [2020-09-15 23:56:30,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:56:30,016 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-09-15 23:56:30,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-15 23:56:30,016 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-09-15 23:56:30,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-15 23:56:30,017 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:56:30,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:56:30,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 23:56:30,017 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:56:30,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:56:30,018 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 1 times [2020-09-15 23:56:30,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:56:30,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634995840] [2020-09-15 23:56:30,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:56:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:56:30,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:56:30,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634995840] [2020-09-15 23:56:30,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:56:30,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-15 23:56:30,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [60373815] [2020-09-15 23:56:30,123 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:56:30,126 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:56:30,132 INFO L274 McrAutomatonBuilder]: Finished intersection with 40 states and 58 transitions. [2020-09-15 23:56:30,132 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:56:30,150 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:56:30,183 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:56:30,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-15 23:56:30,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:56:30,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-15 23:56:30,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:56:30,185 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-09-15 23:56:30,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:56:30,268 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-09-15 23:56:30,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-15 23:56:30,269 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-15 23:56:30,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:56:30,270 INFO L225 Difference]: With dead ends: 120 [2020-09-15 23:56:30,270 INFO L226 Difference]: Without dead ends: 71 [2020-09-15 23:56:30,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-15 23:56:30,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-15 23:56:30,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-15 23:56:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-15 23:56:30,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-09-15 23:56:30,273 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-09-15 23:56:30,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:56:30,274 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-09-15 23:56:30,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-15 23:56:30,274 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-09-15 23:56:30,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-15 23:56:30,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:56:30,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:56:30,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-15 23:56:30,275 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:56:30,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:56:30,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-09-15 23:56:30,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:56:30,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818895977] [2020-09-15 23:56:30,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:56:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:56:30,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:56:30,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818895977] [2020-09-15 23:56:30,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:56:30,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:56:30,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [291451246] [2020-09-15 23:56:30,340 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:56:30,343 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:56:30,351 INFO L274 McrAutomatonBuilder]: Finished intersection with 44 states and 63 transitions. [2020-09-15 23:56:30,351 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:56:30,379 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:56:30,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:56:30,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:56:30,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:56:30,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:56:30,380 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-09-15 23:56:30,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:56:30,393 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-09-15 23:56:30,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:56:30,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-09-15 23:56:30,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:56:30,394 INFO L225 Difference]: With dead ends: 70 [2020-09-15 23:56:30,394 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 23:56:30,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:56:30,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 23:56:30,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 23:56:30,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 23:56:30,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 23:56:30,395 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-09-15 23:56:30,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:56:30,396 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 23:56:30,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:56:30,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 23:56:30,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 23:56:30,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-15 23:56:30,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:56:30 BasicIcfg [2020-09-15 23:56:30,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 23:56:30,403 INFO L168 Benchmark]: Toolchain (without parser) took 6112.37 ms. Allocated memory was 138.9 MB in the beginning and 293.6 MB in the end (delta: 154.7 MB). Free memory was 101.2 MB in the beginning and 159.8 MB in the end (delta: -58.6 MB). Peak memory consumption was 96.0 MB. Max. memory is 7.1 GB. [2020-09-15 23:56:30,404 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 23:56:30,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.91 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 160.2 MB in the end (delta: -59.7 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-09-15 23:56:30,406 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.23 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 157.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-15 23:56:30,407 INFO L168 Benchmark]: Boogie Preprocessor took 33.22 ms. Allocated memory is still 202.9 MB. Free memory was 157.5 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-15 23:56:30,407 INFO L168 Benchmark]: RCFGBuilder took 525.22 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 132.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-09-15 23:56:30,408 INFO L168 Benchmark]: TraceAbstraction took 4658.20 ms. Allocated memory was 202.9 MB in the beginning and 293.6 MB in the end (delta: 90.7 MB). Free memory was 131.4 MB in the beginning and 159.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. [2020-09-15 23:56:30,412 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 811.91 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 160.2 MB in the end (delta: -59.7 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 72.23 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 157.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.22 ms. Allocated memory is still 202.9 MB. Free memory was 157.5 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 525.22 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 132.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4658.20 ms. Allocated memory was 202.9 MB in the beginning and 293.6 MB in the end (delta: 90.7 MB). Free memory was 131.4 MB in the beginning and 159.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 92 ProgramPointsBefore, 38 ProgramPointsAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 944 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3093 CheckedPairsTotal, 65 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 198 SDtfs, 178 SDslu, 295 SDs, 0 SdLazy, 161 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 108 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 4842 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...