/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/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:14:28,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:14:28,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:14:28,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:14:28,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:14:28,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:14:28,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:14:28,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:14:28,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:14:28,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:14:28,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:14:28,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:14:28,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:14:28,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:14:28,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:14:28,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:14:28,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:14:28,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:14:28,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:14:28,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:14:28,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:14:28,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:14:28,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:14:28,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:14:28,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-06 01:14:28,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-06 01:14:28,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-06 01:14:28,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-06 01:14:28,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-06 01:14:28,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-06 01:14:28,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:14:28,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:14:28,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:14:28,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:14:28,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:14:28,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:14:28,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:14:28,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:14:28,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:14:28,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:14:28,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:14:28,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 01:14:28,795 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:14:28,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:14:28,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:14:28,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:14:28,798 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:14:28,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:14:28,799 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:14:28,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:14:28,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:14:28,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:14:28,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:14:28,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:14:28,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:14:28,801 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:14:28,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:14:28,802 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:14:28,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:14:28,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:14:28,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:14:28,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:14:28,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:14:28,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:14:28,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:14:28,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:14:28,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:14:28,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:14:28,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:14:28,804 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:14:28,804 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:14:28,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:14:28,804 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:14:29,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:14:29,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:14:29,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:14:29,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:14:29,119 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:14:29,120 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-10-06 01:14:29,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb56f08ba/5e8230cc7f1b48e1afd435fa4ddff680/FLAG800b867b5 [2020-10-06 01:14:29,734 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:14:29,735 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-10-06 01:14:29,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb56f08ba/5e8230cc7f1b48e1afd435fa4ddff680/FLAG800b867b5 [2020-10-06 01:14:29,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb56f08ba/5e8230cc7f1b48e1afd435fa4ddff680 [2020-10-06 01:14:30,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:14:30,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:14:30,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:14:30,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:14:30,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:14:30,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:14:29" (1/1) ... [2020-10-06 01:14:30,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66afe92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30, skipping insertion in model container [2020-10-06 01:14:30,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:14:29" (1/1) ... [2020-10-06 01:14:30,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:14:30,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:14:30,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:14:30,663 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:14:30,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:14:30,806 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:14:30,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30 WrapperNode [2020-10-06 01:14:30,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:14:30,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:14:30,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:14:30,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:14:30,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30" (1/1) ... [2020-10-06 01:14:30,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30" (1/1) ... [2020-10-06 01:14:30,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:14:30,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:14:30,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:14:30,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:14:30,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30" (1/1) ... [2020-10-06 01:14:30,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30" (1/1) ... [2020-10-06 01:14:30,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30" (1/1) ... [2020-10-06 01:14:30,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30" (1/1) ... [2020-10-06 01:14:30,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30" (1/1) ... [2020-10-06 01:14:30,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30" (1/1) ... [2020-10-06 01:14:30,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30" (1/1) ... [2020-10-06 01:14:30,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:14:30,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:14:30,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:14:30,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:14:30,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:14:30,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:14:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:14:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:14:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:14:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:14:30,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:14:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:14:30,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:14:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:14:30,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:14:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-06 01:14:30,993 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-06 01:14:30,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:14:30,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:14:30,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:14:30,996 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:14:31,391 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:14:31,391 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:14:31,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:14:31 BoogieIcfgContainer [2020-10-06 01:14:31,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:14:31,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:14:31,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:14:31,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:14:31,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:14:29" (1/3) ... [2020-10-06 01:14:31,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b26ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:14:31, skipping insertion in model container [2020-10-06 01:14:31,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:14:30" (2/3) ... [2020-10-06 01:14:31,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b26ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:14:31, skipping insertion in model container [2020-10-06 01:14:31,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:14:31" (3/3) ... [2020-10-06 01:14:31,403 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-10-06 01:14:31,414 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:14:31,414 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:14:31,422 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:14:31,423 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:14:31,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,474 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,474 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,484 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,484 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,485 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,485 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,485 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,486 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,495 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,496 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,496 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,497 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,517 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,518 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,518 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,518 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,532 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,532 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,533 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,533 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,541 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,541 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:14:31,563 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-06 01:14:31,590 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:14:31,591 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:14:31,591 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:14:31,591 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:14:31,591 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:14:31,591 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:14:31,591 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:14:31,592 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:14:31,614 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-06 01:14:31,616 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-06 01:14:31,669 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-06 01:14:31,669 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:14:31,676 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-06 01:14:31,679 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-06 01:14:31,707 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-06 01:14:31,707 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:14:31,708 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-06 01:14:31,712 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2016 [2020-10-06 01:14:31,713 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:14:33,191 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4485 [2020-10-06 01:14:33,192 INFO L214 etLargeBlockEncoding]: Total number of compositions: 67 [2020-10-06 01:14:33,196 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-06 01:14:33,298 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-06 01:14:33,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-06 01:14:33,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:14:33,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:14:33,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:14:33,313 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:14:33,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:14:33,320 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-10-06 01:14:33,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:14:33,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480878521] [2020-10-06 01:14:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:14:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:14:33,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:14:33,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480878521] [2020-10-06 01:14:33,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:14:33,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:14:33,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [991463497] [2020-10-06 01:14:33,544 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:14:33,547 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:14:33,562 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-06 01:14:33,562 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:14:33,567 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:14:33,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-06 01:14:33,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:14:33,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-06 01:14:33,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:14:33,585 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-06 01:14:33,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:14:33,634 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-06 01:14:33,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-06 01:14:33,636 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-06 01:14:33,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:14:33,682 INFO L225 Difference]: With dead ends: 1450 [2020-10-06 01:14:33,682 INFO L226 Difference]: Without dead ends: 1194 [2020-10-06 01:14:33,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:14:33,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-06 01:14:33,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-06 01:14:33,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-06 01:14:33,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-06 01:14:33,848 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-06 01:14:33,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:14:33,858 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-06 01:14:33,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-06 01:14:33,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-06 01:14:33,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:14:33,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:14:33,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:14:33,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:14:33,863 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:14:33,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:14:33,863 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-10-06 01:14:33,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:14:33,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591954678] [2020-10-06 01:14:33,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:14:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:14:34,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:14:34,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591954678] [2020-10-06 01:14:34,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:14:34,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:14:34,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1638362113] [2020-10-06 01:14:34,098 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:14:34,099 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:14:34,101 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-06 01:14:34,102 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:14:34,102 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:14:34,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:14:34,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:14:34,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:14:34,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:14:34,105 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-06 01:14:34,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:14:34,155 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-06 01:14:34,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:14:34,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 01:14:34,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:14:34,167 INFO L225 Difference]: With dead ends: 1322 [2020-10-06 01:14:34,168 INFO L226 Difference]: Without dead ends: 1066 [2020-10-06 01:14:34,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:14:34,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-06 01:14:34,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-06 01:14:34,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-06 01:14:34,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-06 01:14:34,219 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-06 01:14:34,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:14:34,220 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-06 01:14:34,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:14:34,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-06 01:14:34,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:14:34,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:14:34,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:14:34,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:14:34,224 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:14:34,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:14:34,224 INFO L82 PathProgramCache]: Analyzing trace with hash -426404145, now seen corresponding path program 1 times [2020-10-06 01:14:34,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:14:34,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297244173] [2020-10-06 01:14:34,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:14:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:14:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:14:34,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297244173] [2020-10-06 01:14:34,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:14:34,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:14:34,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1835747473] [2020-10-06 01:14:34,311 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:14:34,312 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:14:34,314 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-10-06 01:14:34,315 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:14:34,386 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:14:34,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:14:34,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:14:34,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:14:34,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:14:34,387 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-06 01:14:34,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:14:34,422 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-06 01:14:34,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:14:34,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-06 01:14:34,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:14:34,432 INFO L225 Difference]: With dead ends: 1162 [2020-10-06 01:14:34,432 INFO L226 Difference]: Without dead ends: 970 [2020-10-06 01:14:34,433 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 [2020-10-06 01:14:34,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-06 01:14:34,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-06 01:14:34,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-06 01:14:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-06 01:14:34,475 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-06 01:14:34,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:14:34,475 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-06 01:14:34,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:14:34,475 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-06 01:14:34,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:14:34,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:14:34,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:14:34,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:14:34,478 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:14:34,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:14:34,479 INFO L82 PathProgramCache]: Analyzing trace with hash -333650641, now seen corresponding path program 1 times [2020-10-06 01:14:34,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:14:34,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052705436] [2020-10-06 01:14:34,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:14:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:14:34,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:14:34,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052705436] [2020-10-06 01:14:34,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:14:34,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:14:34,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2125301700] [2020-10-06 01:14:34,549 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:14:34,550 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:14:34,554 INFO L258 McrAutomatonBuilder]: Finished intersection with 28 states and 44 transitions. [2020-10-06 01:14:34,554 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:14:34,641 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:14:34,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:14:34,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:14:34,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:14:34,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:14:34,643 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 5 states. [2020-10-06 01:14:34,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:14:34,707 INFO L93 Difference]: Finished difference Result 1210 states and 4120 transitions. [2020-10-06 01:14:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:14:34,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-06 01:14:34,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:14:34,713 INFO L225 Difference]: With dead ends: 1210 [2020-10-06 01:14:34,714 INFO L226 Difference]: Without dead ends: 586 [2020-10-06 01:14:34,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:14:34,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-10-06 01:14:34,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2020-10-06 01:14:34,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-10-06 01:14:34,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 1872 transitions. [2020-10-06 01:14:34,743 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 1872 transitions. Word has length 13 [2020-10-06 01:14:34,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:14:34,744 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 1872 transitions. [2020-10-06 01:14:34,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:14:34,744 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 1872 transitions. [2020-10-06 01:14:34,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-06 01:14:34,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:14:34,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:14:34,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:14:34,746 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:14:34,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:14:34,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1296364861, now seen corresponding path program 1 times [2020-10-06 01:14:34,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:14:34,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93642803] [2020-10-06 01:14:34,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:14:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:14:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:14:34,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93642803] [2020-10-06 01:14:34,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:14:34,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:14:34,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2008869384] [2020-10-06 01:14:34,817 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:14:34,820 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:14:34,855 INFO L258 McrAutomatonBuilder]: Finished intersection with 52 states and 100 transitions. [2020-10-06 01:14:34,855 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:14:35,132 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:14:35,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:14:35,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:14:35,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:14:35,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:14:35,135 INFO L87 Difference]: Start difference. First operand 586 states and 1872 transitions. Second operand 5 states. [2020-10-06 01:14:35,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:14:35,195 INFO L93 Difference]: Finished difference Result 802 states and 2494 transitions. [2020-10-06 01:14:35,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:14:35,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-06 01:14:35,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:14:35,199 INFO L225 Difference]: With dead ends: 802 [2020-10-06 01:14:35,199 INFO L226 Difference]: Without dead ends: 346 [2020-10-06 01:14:35,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:14:35,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-06 01:14:35,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-06 01:14:35,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-06 01:14:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 1012 transitions. [2020-10-06 01:14:35,214 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 1012 transitions. Word has length 15 [2020-10-06 01:14:35,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:14:35,215 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 1012 transitions. [2020-10-06 01:14:35,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:14:35,215 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 1012 transitions. [2020-10-06 01:14:35,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-06 01:14:35,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:14:35,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:14:35,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:14:35,217 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:14:35,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:14:35,217 INFO L82 PathProgramCache]: Analyzing trace with hash 275175569, now seen corresponding path program 1 times [2020-10-06 01:14:35,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:14:35,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661950453] [2020-10-06 01:14:35,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:14:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:14:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:14:35,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661950453] [2020-10-06 01:14:35,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:14:35,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:14:35,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1854554213] [2020-10-06 01:14:35,325 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:14:35,329 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:14:35,336 INFO L258 McrAutomatonBuilder]: Finished intersection with 44 states and 70 transitions. [2020-10-06 01:14:35,336 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:14:35,418 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:14:35,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:14:35,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:14:35,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:14:35,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:14:35,419 INFO L87 Difference]: Start difference. First operand 346 states and 1012 transitions. Second operand 5 states. [2020-10-06 01:14:35,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:14:35,462 INFO L93 Difference]: Finished difference Result 430 states and 1224 transitions. [2020-10-06 01:14:35,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:14:35,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-06 01:14:35,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:14:35,464 INFO L225 Difference]: With dead ends: 430 [2020-10-06 01:14:35,464 INFO L226 Difference]: Without dead ends: 148 [2020-10-06 01:14:35,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:14:35,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-06 01:14:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-10-06 01:14:35,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-06 01:14:35,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 398 transitions. [2020-10-06 01:14:35,471 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 398 transitions. Word has length 16 [2020-10-06 01:14:35,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:14:35,471 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 398 transitions. [2020-10-06 01:14:35,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:14:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 398 transitions. [2020-10-06 01:14:35,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-06 01:14:35,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:14:35,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:14:35,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:14:35,473 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:14:35,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:14:35,473 INFO L82 PathProgramCache]: Analyzing trace with hash 355522076, now seen corresponding path program 1 times [2020-10-06 01:14:35,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:14:35,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549635491] [2020-10-06 01:14:35,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:14:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:14:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:14:35,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549635491] [2020-10-06 01:14:35,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:14:35,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:14:35,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [605423412] [2020-10-06 01:14:35,535 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:14:35,538 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:14:35,542 INFO L258 McrAutomatonBuilder]: Finished intersection with 26 states and 32 transitions. [2020-10-06 01:14:35,543 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:14:35,567 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:14:35,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:14:35,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:14:35,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:14:35,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:14:35,568 INFO L87 Difference]: Start difference. First operand 148 states and 398 transitions. Second operand 5 states. [2020-10-06 01:14:35,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:14:35,602 INFO L93 Difference]: Finished difference Result 124 states and 322 transitions. [2020-10-06 01:14:35,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:14:35,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-06 01:14:35,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:14:35,603 INFO L225 Difference]: With dead ends: 124 [2020-10-06 01:14:35,603 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:14:35,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:14:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:14:35,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:14:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:14:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:14:35,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-06 01:14:35,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:14:35,605 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:14:35,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:14:35,605 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:14:35,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:14:35,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:14:35,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:14:35 BasicIcfg [2020-10-06 01:14:35,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:14:35,613 INFO L168 Benchmark]: Toolchain (without parser) took 5605.29 ms. Allocated memory was 148.4 MB in the beginning and 284.7 MB in the end (delta: 136.3 MB). Free memory was 103.7 MB in the beginning and 139.3 MB in the end (delta: -35.6 MB). Peak memory consumption was 100.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:14:35,614 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 148.4 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-06 01:14:35,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.54 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 103.5 MB in the beginning and 163.1 MB in the end (delta: -59.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-10-06 01:14:35,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.74 ms. Allocated memory is still 206.0 MB. Free memory was 163.1 MB in the beginning and 161.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:14:35,617 INFO L168 Benchmark]: Boogie Preprocessor took 28.74 ms. Allocated memory is still 206.0 MB. Free memory was 161.1 MB in the beginning and 159.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:14:35,618 INFO L168 Benchmark]: RCFGBuilder took 485.79 ms. Allocated memory is still 206.0 MB. Free memory was 159.2 MB in the beginning and 134.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:14:35,619 INFO L168 Benchmark]: TraceAbstraction took 4214.66 ms. Allocated memory was 206.0 MB in the beginning and 284.7 MB in the end (delta: 78.6 MB). Free memory was 133.8 MB in the beginning and 139.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. [2020-10-06 01:14:35,623 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 148.4 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.54 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 103.5 MB in the beginning and 163.1 MB in the end (delta: -59.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 69.74 ms. Allocated memory is still 206.0 MB. Free memory was 163.1 MB in the beginning and 161.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.74 ms. Allocated memory is still 206.0 MB. Free memory was 161.1 MB in the beginning and 159.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 485.79 ms. Allocated memory is still 206.0 MB. Free memory was 159.2 MB in the beginning and 134.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4214.66 ms. Allocated memory was 206.0 MB in the beginning and 284.7 MB in the end (delta: 78.6 MB). Free memory was 133.8 MB in the beginning and 139.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 97 ProgramPointsBefore, 41 ProgramPointsAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 1043 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4485 CheckedPairsTotal, 67 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, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 204 SDtfs, 225 SDslu, 297 SDs, 0 SdLazy, 51 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 3385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...