/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/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:11:37,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:11:37,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:11:37,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:11:37,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:11:37,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:11:37,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:11:37,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:11:37,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:11:37,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:11:37,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:11:37,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:11:37,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:11:37,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:11:37,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:11:37,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:11:37,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:11:37,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:11:37,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:11:37,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:11:37,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:11:37,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:11:37,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:11:37,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:11:37,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-06 01:11:37,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-06 01:11:37,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-06 01:11:37,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-06 01:11:37,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-06 01:11:37,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-06 01:11:37,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:11:37,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:11:37,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:11:37,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:11:37,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:11:37,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:11:37,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:11:37,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:11:37,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:11:37,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:11:37,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:11:37,580 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 01:11:37,602 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:11:37,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:11:37,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:11:37,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:11:37,604 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:11:37,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:11:37,605 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:11:37,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:11:37,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:11:37,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:11:37,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:11:37,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:11:37,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:11:37,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:11:37,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:11:37,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:11:37,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:11:37,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:11:37,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:11:37,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:11:37,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:11:37,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:11:37,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:11:37,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:11:37,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:11:37,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:11:37,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:11:37,609 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:11:37,609 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:11:37,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:11:37,609 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:11:37,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:11:37,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:11:37,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:11:37,937 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:11:37,938 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:11:37,939 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-10-06 01:11:38,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7322a57a6/7206e52a6a4e47c485d04b3d8d2ae9d4/FLAG4a0cc195a [2020-10-06 01:11:38,610 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:11:38,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-10-06 01:11:38,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7322a57a6/7206e52a6a4e47c485d04b3d8d2ae9d4/FLAG4a0cc195a [2020-10-06 01:11:38,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7322a57a6/7206e52a6a4e47c485d04b3d8d2ae9d4 [2020-10-06 01:11:38,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:11:38,844 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:11:38,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:11:38,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:11:38,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:11:38,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:11:38" (1/1) ... [2020-10-06 01:11:38,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f2b0c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:38, skipping insertion in model container [2020-10-06 01:11:38,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:11:38" (1/1) ... [2020-10-06 01:11:38,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:11:38,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:11:39,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:11:39,464 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:11:39,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:11:39,640 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:11:39,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39 WrapperNode [2020-10-06 01:11:39,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:11:39,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:11:39,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:11:39,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:11:39,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39" (1/1) ... [2020-10-06 01:11:39,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39" (1/1) ... [2020-10-06 01:11:39,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:11:39,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:11:39,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:11:39,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:11:39,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39" (1/1) ... [2020-10-06 01:11:39,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39" (1/1) ... [2020-10-06 01:11:39,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39" (1/1) ... [2020-10-06 01:11:39,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39" (1/1) ... [2020-10-06 01:11:39,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39" (1/1) ... [2020-10-06 01:11:39,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39" (1/1) ... [2020-10-06 01:11:39,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39" (1/1) ... [2020-10-06 01:11:39,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:11:39,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:11:39,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:11:39,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:11:39,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39" (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 01:11:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:11:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:11:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:11:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:11:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:11:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:11:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:11:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:11:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:11:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:11:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:11:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:11:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:11:39,797 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 01:11:40,183 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:11:40,183 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:11:40,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:11:40 BoogieIcfgContainer [2020-10-06 01:11:40,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:11:40,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:11:40,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:11:40,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:11:40,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:11:38" (1/3) ... [2020-10-06 01:11:40,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57352ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:11:40, skipping insertion in model container [2020-10-06 01:11:40,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:39" (2/3) ... [2020-10-06 01:11:40,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57352ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:11:40, skipping insertion in model container [2020-10-06 01:11:40,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:11:40" (3/3) ... [2020-10-06 01:11:40,202 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2020-10-06 01:11:40,210 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:11:40,211 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:11:40,218 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:11:40,219 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:11:40,251 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,252 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,252 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,253 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,253 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,255 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,255 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,255 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,256 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,256 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,257 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,257 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,262 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,262 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,263 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,263 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,275 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,276 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:40,313 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 01:11:40,329 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:11:40,330 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:11:40,330 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:11:40,330 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:11:40,330 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:11:40,331 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:11:40,331 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:11:40,331 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:11:40,348 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-06 01:11:40,350 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-06 01:11:40,395 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-06 01:11:40,396 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:11:40,401 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:11:40,404 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-06 01:11:40,427 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-06 01:11:40,427 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:11:40,428 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:11:40,430 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-06 01:11:40,432 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:11:41,529 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2202 [2020-10-06 01:11:41,530 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-10-06 01:11:41,534 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-06 01:11:41,573 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-06 01:11:41,576 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-06 01:11:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:11:41,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:41,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:41,586 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:41,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:41,594 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-10-06 01:11:41,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:41,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386002713] [2020-10-06 01:11:41,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:41,826 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 01:11:41,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386002713] [2020-10-06 01:11:41,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:41,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:41,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [137470798] [2020-10-06 01:11:41,831 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:41,834 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:41,851 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 01:11:41,852 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:41,857 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:41,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-06 01:11:41,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:41,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-06 01:11:41,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:11:41,878 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-06 01:11:41,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:41,921 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-06 01:11:41,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-06 01:11:41,925 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-06 01:11:41,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:41,942 INFO L225 Difference]: With dead ends: 362 [2020-10-06 01:11:41,942 INFO L226 Difference]: Without dead ends: 298 [2020-10-06 01:11:41,944 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 01:11:41,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-06 01:11:42,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-06 01:11:42,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-06 01:11:42,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-06 01:11:42,024 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-06 01:11:42,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:42,026 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-06 01:11:42,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-06 01:11:42,026 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-06 01:11:42,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:42,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:42,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:42,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:11:42,028 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:42,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:42,029 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-10-06 01:11:42,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:42,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184935103] [2020-10-06 01:11:42,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:42,113 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 01:11:42,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184935103] [2020-10-06 01:11:42,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:42,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:42,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [147159480] [2020-10-06 01:11:42,115 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:42,116 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:42,118 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 01:11:42,118 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:42,119 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:42,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:42,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:42,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:42,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:42,121 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-06 01:11:42,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:42,171 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-06 01:11:42,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:42,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 01:11:42,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:42,179 INFO L225 Difference]: With dead ends: 217 [2020-10-06 01:11:42,179 INFO L226 Difference]: Without dead ends: 217 [2020-10-06 01:11:42,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:42,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-06 01:11:42,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-06 01:11:42,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-06 01:11:42,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-06 01:11:42,220 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-06 01:11:42,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:42,220 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-06 01:11:42,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:42,221 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-06 01:11:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:11:42,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:42,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:42,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:11:42,229 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:42,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:42,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-10-06 01:11:42,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:42,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133327899] [2020-10-06 01:11:42,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:42,304 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 01:11:42,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133327899] [2020-10-06 01:11:42,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:42,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:42,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1533978762] [2020-10-06 01:11:42,305 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:42,306 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:42,311 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-10-06 01:11:42,311 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:42,312 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:42,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:42,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:42,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:42,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:42,313 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-06 01:11:42,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:42,342 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-06 01:11:42,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:42,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-06 01:11:42,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:42,344 INFO L225 Difference]: With dead ends: 136 [2020-10-06 01:11:42,344 INFO L226 Difference]: Without dead ends: 136 [2020-10-06 01:11:42,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:42,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-06 01:11:42,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-06 01:11:42,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-06 01:11:42,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-06 01:11:42,353 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-06 01:11:42,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:42,354 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-06 01:11:42,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:42,354 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-06 01:11:42,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-06 01:11:42,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:42,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:42,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:11:42,356 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:42,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:42,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-10-06 01:11:42,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:42,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5251868] [2020-10-06 01:11:42,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:42,424 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 01:11:42,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5251868] [2020-10-06 01:11:42,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:42,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:11:42,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [119407120] [2020-10-06 01:11:42,426 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:42,427 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:42,432 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 50 transitions. [2020-10-06 01:11:42,433 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:42,531 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:42,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:42,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:42,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:42,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:42,533 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-06 01:11:42,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:42,561 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-06 01:11:42,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:11:42,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-06 01:11:42,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:42,563 INFO L225 Difference]: With dead ends: 109 [2020-10-06 01:11:42,564 INFO L226 Difference]: Without dead ends: 109 [2020-10-06 01:11:42,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:42,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-06 01:11:42,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-06 01:11:42,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-06 01:11:42,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-06 01:11:42,570 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-06 01:11:42,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:42,570 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-06 01:11:42,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:42,570 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-06 01:11:42,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-06 01:11:42,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:42,572 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 01:11:42,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:11:42,573 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:42,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:42,573 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-10-06 01:11:42,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:42,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737185086] [2020-10-06 01:11:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:42,675 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 01:11:42,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737185086] [2020-10-06 01:11:42,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:42,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:42,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [35568880] [2020-10-06 01:11:42,677 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:42,679 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:42,690 INFO L258 McrAutomatonBuilder]: Finished intersection with 77 states and 141 transitions. [2020-10-06 01:11:42,691 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:42,705 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:42,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:42,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:42,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:42,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:42,706 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-06 01:11:42,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:42,726 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-06 01:11:42,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:42,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-06 01:11:42,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:42,728 INFO L225 Difference]: With dead ends: 135 [2020-10-06 01:11:42,728 INFO L226 Difference]: Without dead ends: 85 [2020-10-06 01:11:42,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 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 01:11:42,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-06 01:11:42,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-06 01:11:42,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-06 01:11:42,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-06 01:11:42,733 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-06 01:11:42,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:42,733 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-06 01:11:42,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:42,733 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-06 01:11:42,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-06 01:11:42,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:42,735 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 01:11:42,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:11:42,735 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:42,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:42,736 INFO L82 PathProgramCache]: Analyzing trace with hash 225033754, now seen corresponding path program 2 times [2020-10-06 01:11:42,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:42,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628297820] [2020-10-06 01:11:42,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:42,791 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 01:11:42,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628297820] [2020-10-06 01:11:42,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:42,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:42,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1913091391] [2020-10-06 01:11:42,793 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:42,795 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:42,806 INFO L258 McrAutomatonBuilder]: Finished intersection with 79 states and 141 transitions. [2020-10-06 01:11:42,807 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:42,817 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:42,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:42,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:42,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:42,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:42,819 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-10-06 01:11:42,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:42,837 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-10-06 01:11:42,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:42,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-06 01:11:42,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:42,839 INFO L225 Difference]: With dead ends: 99 [2020-10-06 01:11:42,839 INFO L226 Difference]: Without dead ends: 37 [2020-10-06 01:11:42,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 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 01:11:42,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-06 01:11:42,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-06 01:11:42,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-06 01:11:42,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-06 01:11:42,842 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-06 01:11:42,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:42,843 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-06 01:11:42,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:42,843 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-06 01:11:42,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-06 01:11:42,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:42,844 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 01:11:42,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:11:42,844 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:42,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:42,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 3 times [2020-10-06 01:11:42,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:42,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895200663] [2020-10-06 01:11:42,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:42,896 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 01:11:42,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895200663] [2020-10-06 01:11:42,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:42,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:42,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [218307062] [2020-10-06 01:11:42,897 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:42,900 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:42,913 INFO L258 McrAutomatonBuilder]: Finished intersection with 77 states and 138 transitions. [2020-10-06 01:11:42,913 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:42,918 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:42,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:42,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:42,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:42,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:42,919 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-10-06 01:11:42,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:42,934 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-06 01:11:42,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:42,935 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-06 01:11:42,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:42,935 INFO L225 Difference]: With dead ends: 36 [2020-10-06 01:11:42,935 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:11:42,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:42,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:11:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:11:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:11:42,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:11:42,937 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-06 01:11:42,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:42,938 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:11:42,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:42,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:11:42,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:11:42,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:11:42,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:11:42 BasicIcfg [2020-10-06 01:11:42,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:11:42,946 INFO L168 Benchmark]: Toolchain (without parser) took 4100.84 ms. Allocated memory was 137.4 MB in the beginning and 253.8 MB in the end (delta: 116.4 MB). Free memory was 99.0 MB in the beginning and 106.3 MB in the end (delta: -7.3 MB). Peak memory consumption was 109.1 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:42,947 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:11:42,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.83 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 98.8 MB in the beginning and 155.0 MB in the end (delta: -56.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:42,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.89 ms. Allocated memory is still 200.3 MB. Free memory was 155.0 MB in the beginning and 153.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:42,949 INFO L168 Benchmark]: Boogie Preprocessor took 26.38 ms. Allocated memory is still 200.3 MB. Free memory was 153.0 MB in the beginning and 151.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:42,950 INFO L168 Benchmark]: RCFGBuilder took 469.53 ms. Allocated memory is still 200.3 MB. Free memory was 151.6 MB in the beginning and 129.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:42,951 INFO L168 Benchmark]: TraceAbstraction took 2755.48 ms. Allocated memory was 200.3 MB in the beginning and 253.8 MB in the end (delta: 53.5 MB). Free memory was 129.3 MB in the beginning and 106.3 MB in the end (delta: 23.0 MB). Peak memory consumption was 76.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:42,955 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 795.83 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 98.8 MB in the beginning and 155.0 MB in the end (delta: -56.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.89 ms. Allocated memory is still 200.3 MB. Free memory was 155.0 MB in the beginning and 153.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.38 ms. Allocated memory is still 200.3 MB. Free memory was 153.0 MB in the beginning and 151.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 469.53 ms. Allocated memory is still 200.3 MB. Free memory was 151.6 MB in the beginning and 129.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2755.48 ms. Allocated memory was 200.3 MB in the beginning and 253.8 MB in the end (delta: 53.5 MB). Free memory was 129.3 MB in the beginning and 106.3 MB in the end (delta: 23.0 MB). Peak memory consumption was 76.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 76 ProgramPointsBefore, 32 ProgramPointsAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2202 CheckedPairsTotal, 55 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 128 SDtfs, 66 SDslu, 157 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2420 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...