/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/safe015_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:39:33,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:39:33,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:39:33,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:39:33,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:39:33,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:39:33,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:39:33,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:39:33,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:39:33,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:39:33,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:39:33,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:39:33,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:39:33,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:39:33,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:39:33,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:39:33,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:39:33,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:39:33,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:39:33,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:39:33,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:39:33,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:39:33,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:39:33,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:39:33,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:39:33,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:39:33,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:39:33,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:39:33,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:39:33,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:39:33,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:39:33,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:39:33,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:39:33,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:39:33,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:39:33,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:39:33,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:39:33,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:39:33,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:39:33,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:39:33,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:39:33,685 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 [2020-10-16 13:39:33,725 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:39:33,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:39:33,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:39:33,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:39:33,728 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:39:33,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:39:33,728 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:39:33,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:39:33,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:39:33,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:39:33,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:39:33,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:39:33,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:39:33,729 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:39:33,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:39:33,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:39:33,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:39:33,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:39:33,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:39:33,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:39:33,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:39:33,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:39:33,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:39:33,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:39:33,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:39:33,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:39:33,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:39:33,732 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:39:33,733 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:39:33,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:39:33,733 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:39:34,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:39:34,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:39:34,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:39:34,084 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:39:34,084 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:39:34,085 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2020-10-16 13:39:34,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e452cbda/094f120bdf374fd9a1912adf7c9a20a2/FLAG3d61665ef [2020-10-16 13:39:34,741 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:39:34,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2020-10-16 13:39:34,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e452cbda/094f120bdf374fd9a1912adf7c9a20a2/FLAG3d61665ef [2020-10-16 13:39:35,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e452cbda/094f120bdf374fd9a1912adf7c9a20a2 [2020-10-16 13:39:35,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:39:35,018 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:39:35,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:39:35,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:39:35,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:39:35,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:39:35" (1/1) ... [2020-10-16 13:39:35,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@732d236d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35, skipping insertion in model container [2020-10-16 13:39:35,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:39:35" (1/1) ... [2020-10-16 13:39:35,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:39:35,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:39:35,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:39:35,608 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:39:35,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:39:35,765 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:39:35,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35 WrapperNode [2020-10-16 13:39:35,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:39:35,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:39:35,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:39:35,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:39:35,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35" (1/1) ... [2020-10-16 13:39:35,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35" (1/1) ... [2020-10-16 13:39:35,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:39:35,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:39:35,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:39:35,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:39:35,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35" (1/1) ... [2020-10-16 13:39:35,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35" (1/1) ... [2020-10-16 13:39:35,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35" (1/1) ... [2020-10-16 13:39:35,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35" (1/1) ... [2020-10-16 13:39:35,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35" (1/1) ... [2020-10-16 13:39:35,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35" (1/1) ... [2020-10-16 13:39:35,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35" (1/1) ... [2020-10-16 13:39:35,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:39:35,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:39:35,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:39:35,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:39:35,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35" (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 [2020-10-16 13:39:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:39:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:39:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:39:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:39:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:39:35,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:39:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:39:35,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:39:35,921 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:39:35,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:39:35,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:39:35,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:39:35,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:39:35,924 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:39:36,293 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:39:36,294 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:39:36,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:39:36 BoogieIcfgContainer [2020-10-16 13:39:36,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:39:36,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:39:36,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:39:36,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:39:36,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:39:35" (1/3) ... [2020-10-16 13:39:36,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4280d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:39:36, skipping insertion in model container [2020-10-16 13:39:36,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:39:35" (2/3) ... [2020-10-16 13:39:36,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4280d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:39:36, skipping insertion in model container [2020-10-16 13:39:36,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:39:36" (3/3) ... [2020-10-16 13:39:36,308 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2020-10-16 13:39:36,321 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:39:36,322 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:39:36,330 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:39:36,331 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:39:36,368 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,368 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,369 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,369 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,372 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,373 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,373 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,375 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,375 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,376 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,376 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,381 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,382 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,391 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,391 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,392 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,392 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,395 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,395 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,396 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,396 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:39:36,398 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:39:36,414 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:39:36,436 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:39:36,436 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:39:36,437 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:39:36,437 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:39:36,437 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:39:36,437 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:39:36,437 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:39:36,438 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:39:36,452 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:39:36,453 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:39:36,456 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:39:36,458 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 13:39:36,503 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 13:39:36,504 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:39:36,509 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 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. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 13:39:36,512 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:39:37,926 INFO L132 LiptonReduction]: Checked pairs total: 2962 [2020-10-16 13:39:37,926 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-16 13:39:37,933 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 13:39:37,962 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 13:39:37,964 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 13:39:37,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:39:37,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:39:37,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:39:37,974 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:39:37,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:39:37,980 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-10-16 13:39:38,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:39:38,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888209261] [2020-10-16 13:39:38,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:39:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:39:38,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:39:38,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888209261] [2020-10-16 13:39:38,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:39:38,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:39:38,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1721779340] [2020-10-16 13:39:38,233 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:39:38,237 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:39:38,251 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:39:38,252 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:39:38,257 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:39:38,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:39:38,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:39:38,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:39:38,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:39:38,275 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 13:39:38,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:39:38,321 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-16 13:39:38,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:39:38,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 13:39:38,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:39:38,340 INFO L225 Difference]: With dead ends: 282 [2020-10-16 13:39:38,340 INFO L226 Difference]: Without dead ends: 218 [2020-10-16 13:39:38,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:39:38,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-16 13:39:38,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-16 13:39:38,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-16 13:39:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-16 13:39:38,413 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-16 13:39:38,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:39:38,415 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-16 13:39:38,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:39:38,415 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-16 13:39:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:39:38,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:39:38,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:39:38,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:39:38,417 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:39:38,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:39:38,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-10-16 13:39:38,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:39:38,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612396864] [2020-10-16 13:39:38,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:39:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:39:38,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:39:38,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612396864] [2020-10-16 13:39:38,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:39:38,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:39:38,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2007617542] [2020-10-16 13:39:38,481 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:39:38,482 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:39:38,484 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-16 13:39:38,484 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:39:38,505 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:39:38,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:39:38,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:39:38,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:39:38,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:39:38,508 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-16 13:39:38,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:39:38,533 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-16 13:39:38,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:39:38,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 13:39:38,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:39:38,537 INFO L225 Difference]: With dead ends: 202 [2020-10-16 13:39:38,537 INFO L226 Difference]: Without dead ends: 202 [2020-10-16 13:39:38,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:39:38,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-16 13:39:38,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-16 13:39:38,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-16 13:39:38,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-16 13:39:38,556 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-16 13:39:38,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:39:38,557 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-16 13:39:38,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:39:38,557 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-16 13:39:38,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:39:38,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:39:38,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:39:38,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:39:38,559 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:39:38,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:39:38,560 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-10-16 13:39:38,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:39:38,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380624179] [2020-10-16 13:39:38,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:39:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:39:38,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:39:38,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380624179] [2020-10-16 13:39:38,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:39:38,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:39:38,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [127688288] [2020-10-16 13:39:38,663 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:39:38,664 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:39:38,666 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-10-16 13:39:38,667 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:39:38,689 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:39:38,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:39:38,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:39:38,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:39:38,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:39:38,691 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-16 13:39:38,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:39:38,699 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-10-16 13:39:38,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:39:38,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 13:39:38,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:39:38,702 INFO L225 Difference]: With dead ends: 198 [2020-10-16 13:39:38,703 INFO L226 Difference]: Without dead ends: 198 [2020-10-16 13:39:38,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:39:38,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-16 13:39:38,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-16 13:39:38,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-16 13:39:38,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-10-16 13:39:38,717 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-10-16 13:39:38,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:39:38,717 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-10-16 13:39:38,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:39:38,718 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-10-16 13:39:38,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:39:38,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:39:38,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:39:38,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:39:38,720 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:39:38,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:39:38,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-10-16 13:39:38,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:39:38,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977123367] [2020-10-16 13:39:38,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:39:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:39:38,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:39:38,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977123367] [2020-10-16 13:39:38,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:39:38,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:39:38,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1921348888] [2020-10-16 13:39:38,767 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:39:38,768 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:39:38,771 INFO L258 McrAutomatonBuilder]: Finished intersection with 31 states and 55 transitions. [2020-10-16 13:39:38,772 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:39:38,878 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:39:38,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:39:38,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:39:38,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:39:38,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:39:38,880 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-10-16 13:39:38,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:39:38,887 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-10-16 13:39:38,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:39:38,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 13:39:38,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:39:38,889 INFO L225 Difference]: With dead ends: 192 [2020-10-16 13:39:38,890 INFO L226 Difference]: Without dead ends: 192 [2020-10-16 13:39:38,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:39:38,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-16 13:39:38,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-16 13:39:38,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-16 13:39:38,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-10-16 13:39:38,902 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-10-16 13:39:38,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:39:38,902 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-10-16 13:39:38,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:39:38,902 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-10-16 13:39:38,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:39:38,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:39:38,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:39:38,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:39:38,905 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:39:38,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:39:38,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-10-16 13:39:38,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:39:38,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096911788] [2020-10-16 13:39:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:39:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:39:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:39:38,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096911788] [2020-10-16 13:39:38,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:39:38,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:39:38,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1203126536] [2020-10-16 13:39:38,988 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:39:38,989 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:39:38,993 INFO L258 McrAutomatonBuilder]: Finished intersection with 35 states and 63 transitions. [2020-10-16 13:39:38,993 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:39:39,015 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:39:39,041 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:39:39,062 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:39:39,095 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:39:39,120 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:39:39,156 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:39:39,180 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:39:39,195 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3186#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-16 13:39:39,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:39:39,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:39:39,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:39:39,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:39:39,196 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 5 states. [2020-10-16 13:39:39,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:39:39,257 INFO L93 Difference]: Finished difference Result 187 states and 470 transitions. [2020-10-16 13:39:39,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:39:39,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 13:39:39,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:39:39,259 INFO L225 Difference]: With dead ends: 187 [2020-10-16 13:39:39,260 INFO L226 Difference]: Without dead ends: 123 [2020-10-16 13:39:39,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:39:39,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-16 13:39:39,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-16 13:39:39,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-16 13:39:39,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-16 13:39:39,266 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 12 [2020-10-16 13:39:39,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:39:39,266 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-16 13:39:39,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:39:39,267 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-16 13:39:39,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:39:39,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:39:39,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:39:39,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:39:39,269 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:39:39,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:39:39,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-10-16 13:39:39,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:39:39,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229914159] [2020-10-16 13:39:39,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:39:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:39:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:39:39,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229914159] [2020-10-16 13:39:39,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:39:39,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:39:39,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1084931746] [2020-10-16 13:39:39,322 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:39:39,323 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:39:39,325 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-10-16 13:39:39,325 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:39:39,329 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:39:39,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:39:39,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:39:39,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:39:39,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:39:39,330 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-10-16 13:39:39,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:39:39,338 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-10-16 13:39:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:39:39,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-16 13:39:39,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:39:39,340 INFO L225 Difference]: With dead ends: 155 [2020-10-16 13:39:39,340 INFO L226 Difference]: Without dead ends: 124 [2020-10-16 13:39:39,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:39:39,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-16 13:39:39,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-10-16 13:39:39,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-16 13:39:39,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-10-16 13:39:39,345 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-10-16 13:39:39,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:39:39,346 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-10-16 13:39:39,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:39:39,346 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-10-16 13:39:39,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:39:39,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:39:39,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:39:39,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:39:39,348 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:39:39,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:39:39,348 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-10-16 13:39:39,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:39:39,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999328937] [2020-10-16 13:39:39,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:39:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:39:39,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:39:39,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999328937] [2020-10-16 13:39:39,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:39:39,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:39:39,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1028712188] [2020-10-16 13:39:39,385 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:39:39,386 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:39:39,394 INFO L258 McrAutomatonBuilder]: Finished intersection with 49 states and 91 transitions. [2020-10-16 13:39:39,394 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:39:39,464 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:39:39,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:39:39,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:39:39,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:39:39,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:39:39,465 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-10-16 13:39:39,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:39:39,486 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-10-16 13:39:39,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:39:39,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-16 13:39:39,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:39:39,488 INFO L225 Difference]: With dead ends: 154 [2020-10-16 13:39:39,488 INFO L226 Difference]: Without dead ends: 116 [2020-10-16 13:39:39,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:39:39,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-16 13:39:39,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-10-16 13:39:39,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-16 13:39:39,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-10-16 13:39:39,493 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-10-16 13:39:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:39:39,493 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-10-16 13:39:39,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:39:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-10-16 13:39:39,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:39:39,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:39:39,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:39:39,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:39:39,495 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:39:39,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:39:39,495 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-10-16 13:39:39,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:39:39,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545364688] [2020-10-16 13:39:39,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:39:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:39:39,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:39:39,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545364688] [2020-10-16 13:39:39,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:39:39,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:39:39,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1439570760] [2020-10-16 13:39:39,543 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:39:39,545 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:39:39,550 INFO L258 McrAutomatonBuilder]: Finished intersection with 43 states and 75 transitions. [2020-10-16 13:39:39,551 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:39:39,557 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:39:39,611 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [4421#(not (= 3 ~__unbuffered_cnt~0)), 4422#(not (= ~__unbuffered_cnt~0 2)), 4423#(not (= ~__unbuffered_cnt~0 1)), 4424#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:39:39,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 13:39:39,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:39:39,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 13:39:39,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-16 13:39:39,613 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 10 states. [2020-10-16 13:39:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:39:39,682 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-10-16 13:39:39,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:39:39,682 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-10-16 13:39:39,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:39:39,683 INFO L225 Difference]: With dead ends: 110 [2020-10-16 13:39:39,683 INFO L226 Difference]: Without dead ends: 38 [2020-10-16 13:39:39,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-16 13:39:39,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-16 13:39:39,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-16 13:39:39,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-16 13:39:39,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-16 13:39:39,686 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-10-16 13:39:39,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:39:39,686 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-16 13:39:39,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 13:39:39,686 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-16 13:39:39,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:39:39,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:39:39,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:39:39,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 13:39:39,688 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:39:39,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:39:39,688 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-10-16 13:39:39,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:39:39,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328719475] [2020-10-16 13:39:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:39:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:39:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:39:39,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328719475] [2020-10-16 13:39:39,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:39:39,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:39:39,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1039917763] [2020-10-16 13:39:39,722 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:39:39,725 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:39:39,730 INFO L258 McrAutomatonBuilder]: Finished intersection with 37 states and 54 transitions. [2020-10-16 13:39:39,730 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:39:39,738 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:39:39,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:39:39,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:39:39,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:39:39,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:39:39,739 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-10-16 13:39:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:39:39,756 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2020-10-16 13:39:39,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:39:39,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 13:39:39,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:39:39,758 INFO L225 Difference]: With dead ends: 56 [2020-10-16 13:39:39,758 INFO L226 Difference]: Without dead ends: 35 [2020-10-16 13:39:39,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:39:39,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-16 13:39:39,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-16 13:39:39,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-16 13:39:39,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-10-16 13:39:39,760 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-10-16 13:39:39,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:39:39,760 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-10-16 13:39:39,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:39:39,761 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-10-16 13:39:39,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:39:39,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:39:39,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:39:39,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 13:39:39,762 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:39:39,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:39:39,762 INFO L82 PathProgramCache]: Analyzing trace with hash 265740449, now seen corresponding path program 2 times [2020-10-16 13:39:39,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:39:39,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528810072] [2020-10-16 13:39:39,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:39:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:39:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:39:39,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528810072] [2020-10-16 13:39:39,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:39:39,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:39:39,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [658884348] [2020-10-16 13:39:39,795 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:39:39,797 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:39:39,802 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 47 transitions. [2020-10-16 13:39:39,802 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:39:39,819 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:39:39,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:39:39,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:39:39,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:39:39,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:39:39,820 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-10-16 13:39:39,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:39:39,834 INFO L93 Difference]: Finished difference Result 34 states and 55 transitions. [2020-10-16 13:39:39,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:39:39,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 13:39:39,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:39:39,835 INFO L225 Difference]: With dead ends: 34 [2020-10-16 13:39:39,835 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:39:39,835 INFO L677 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 [2020-10-16 13:39:39,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:39:39,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:39:39,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:39:39,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:39:39,836 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-16 13:39:39,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:39:39,837 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:39:39,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:39:39,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:39:39,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:39:39,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 13:39:39,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:39:39 BasicIcfg [2020-10-16 13:39:39,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:39:39,844 INFO L168 Benchmark]: Toolchain (without parser) took 4826.42 ms. Allocated memory was 137.9 MB in the beginning and 251.7 MB in the end (delta: 113.8 MB). Free memory was 98.7 MB in the beginning and 109.0 MB in the end (delta: -10.3 MB). Peak memory consumption was 103.5 MB. Max. memory is 7.1 GB. [2020-10-16 13:39:39,845 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 13:39:39,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.92 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 98.5 MB in the beginning and 155.5 MB in the end (delta: -57.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:39:39,847 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.56 ms. Allocated memory is still 200.8 MB. Free memory was 155.5 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:39:39,848 INFO L168 Benchmark]: Boogie Preprocessor took 27.21 ms. Allocated memory is still 200.8 MB. Free memory was 153.5 MB in the beginning and 152.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:39:39,848 INFO L168 Benchmark]: RCFGBuilder took 452.67 ms. Allocated memory is still 200.8 MB. Free memory was 152.0 MB in the beginning and 129.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:39:39,849 INFO L168 Benchmark]: TraceAbstraction took 3543.31 ms. Allocated memory was 200.8 MB in the beginning and 251.7 MB in the end (delta: 50.9 MB). Free memory was 129.0 MB in the beginning and 109.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:39:39,853 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 747.92 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 98.5 MB in the beginning and 155.5 MB in the end (delta: -57.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.56 ms. Allocated memory is still 200.8 MB. Free memory was 155.5 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.21 ms. Allocated memory is still 200.8 MB. Free memory was 153.5 MB in the beginning and 152.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.67 ms. Allocated memory is still 200.8 MB. Free memory was 152.0 MB in the beginning and 129.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3543.31 ms. Allocated memory was 200.8 MB in the beginning and 251.7 MB in the end (delta: 50.9 MB). Free memory was 129.0 MB in the beginning and 109.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 666 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 31 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2962 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 196 SDtfs, 125 SDslu, 232 SDs, 0 SdLazy, 133 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 109 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 3872 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...