/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/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:36:18,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:36:18,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:36:18,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:36:18,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:36:18,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:36:18,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:36:18,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:36:18,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:36:18,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:36:18,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:36:18,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:36:18,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:36:18,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:36:18,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:36:18,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:36:18,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:36:18,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:36:18,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:36:18,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:36:18,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:36:18,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:36:18,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:36:18,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:36:18,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:36:18,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:36:18,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:36:18,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:36:18,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:36:18,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:36:18,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:36:18,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:36:18,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:36:18,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:36:18,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:36:18,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:36:18,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:36:18,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:36:18,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:36:18,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:36:18,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:36:18,537 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:36:18,584 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:36:18,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:36:18,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:36:18,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:36:18,586 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:36:18,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:36:18,586 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:36:18,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:36:18,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:36:18,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:36:18,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:36:18,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:36:18,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:36:18,588 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:36:18,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:36:18,590 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:36:18,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:36:18,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:36:18,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:36:18,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:36:18,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:36:18,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:36:18,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:36:18,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:36:18,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:36:18,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:36:18,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:36:18,592 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:36:18,592 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:36:18,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:36:18,593 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:36:18,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:36:18,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:36:18,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:36:18,911 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:36:18,912 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:36:18,913 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-10-16 13:36:18,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9765ba2a/6645bb222eb84049995784142f532fbc/FLAG3c73faeb5 [2020-10-16 13:36:19,496 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:36:19,497 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-10-16 13:36:19,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9765ba2a/6645bb222eb84049995784142f532fbc/FLAG3c73faeb5 [2020-10-16 13:36:19,731 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9765ba2a/6645bb222eb84049995784142f532fbc [2020-10-16 13:36:19,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:36:19,743 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:36:19,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:36:19,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:36:19,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:36:19,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@392f400c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:19, skipping insertion in model container [2020-10-16 13:36:19,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:36:19" (1/1) ... [2020-10-16 13:36:19,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:36:19,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:36:20,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:36:20,201 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:36:20,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:36:20,426 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:36:20,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20 WrapperNode [2020-10-16 13:36:20,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:36:20,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:36:20,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:36:20,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:36:20,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20" (1/1) ... [2020-10-16 13:36:20,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20" (1/1) ... [2020-10-16 13:36:20,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:36:20,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:36:20,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:36:20,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:36:20,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20" (1/1) ... [2020-10-16 13:36:20,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20" (1/1) ... [2020-10-16 13:36:20,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20" (1/1) ... [2020-10-16 13:36:20,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20" (1/1) ... [2020-10-16 13:36:20,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20" (1/1) ... [2020-10-16 13:36:20,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20" (1/1) ... [2020-10-16 13:36:20,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20" (1/1) ... [2020-10-16 13:36:20,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:36:20,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:36:20,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:36:20,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:36:20,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:36:20,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:36:20,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:36:20,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:36:20,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:36:20,562 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:36:20,562 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:36:20,563 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:36:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:36:20,564 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:36:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:36:20,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:36:20,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:36:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:36:20,566 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:36:20,880 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:36:20,881 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:36:20,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:36:20 BoogieIcfgContainer [2020-10-16 13:36:20,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:36:20,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:36:20,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:36:20,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:36:20,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:36:19" (1/3) ... [2020-10-16 13:36:20,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208bcc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:36:20, skipping insertion in model container [2020-10-16 13:36:20,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:36:20" (2/3) ... [2020-10-16 13:36:20,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208bcc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:36:20, skipping insertion in model container [2020-10-16 13:36:20,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:36:20" (3/3) ... [2020-10-16 13:36:20,892 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2020-10-16 13:36:20,903 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:36:20,904 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:36:20,912 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:36:20,913 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:36:20,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,946 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,946 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,947 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,947 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,947 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,953 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,953 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,959 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,959 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,959 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,960 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,962 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,962 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:36:20,965 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:36:20,980 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:36:20,997 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:36:20,998 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:36:20,998 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:36:20,998 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:36:20,998 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:36:20,998 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:36:20,999 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:36:20,999 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:36:21,011 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:36:21,012 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:36:21,014 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:36:21,016 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-16 13:36:21,066 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-16 13:36:21,066 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:36:21,072 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 13:36:21,075 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:36:22,246 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-16 13:36:22,361 INFO L132 LiptonReduction]: Checked pairs total: 2579 [2020-10-16 13:36:22,361 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 13:36:22,370 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-16 13:36:22,416 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-16 13:36:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-16 13:36:22,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:36:22,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:22,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:22,451 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:22,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:22,457 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-10-16 13:36:22,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:22,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175833842] [2020-10-16 13:36:22,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:22,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175833842] [2020-10-16 13:36:22,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:22,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:36:22,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1637481342] [2020-10-16 13:36:22,727 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:22,730 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:22,744 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:36:22,744 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:22,748 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:22,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 13:36:22,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:22,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 13:36:22,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:36:22,766 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-16 13:36:22,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:22,792 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-16 13:36:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 13:36:22,795 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 13:36:22,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:22,812 INFO L225 Difference]: With dead ends: 362 [2020-10-16 13:36:22,812 INFO L226 Difference]: Without dead ends: 298 [2020-10-16 13:36:22,813 INFO L677 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 [2020-10-16 13:36:22,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-16 13:36:22,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-16 13:36:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-16 13:36:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-16 13:36:22,902 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-16 13:36:22,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:22,903 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-16 13:36:22,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 13:36:22,903 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-16 13:36:22,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:36:22,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:22,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:22,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:36:22,905 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:22,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:22,906 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-10-16 13:36:22,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:22,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676736406] [2020-10-16 13:36:22,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:23,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676736406] [2020-10-16 13:36:23,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:23,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:36:23,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1558941838] [2020-10-16 13:36:23,046 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:23,047 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:23,048 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 13:36:23,049 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:23,049 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:23,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:36:23,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:23,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:36:23,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:36:23,052 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-16 13:36:23,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:23,088 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-16 13:36:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:36:23,088 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 13:36:23,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:23,092 INFO L225 Difference]: With dead ends: 330 [2020-10-16 13:36:23,092 INFO L226 Difference]: Without dead ends: 266 [2020-10-16 13:36:23,093 INFO L677 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 [2020-10-16 13:36:23,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-16 13:36:23,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-16 13:36:23,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-16 13:36:23,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-16 13:36:23,119 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-16 13:36:23,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:23,120 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-16 13:36:23,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:36:23,120 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-16 13:36:23,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:36:23,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:23,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:23,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:36:23,122 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:23,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:23,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-10-16 13:36:23,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:23,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915081155] [2020-10-16 13:36:23,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:23,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:23,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915081155] [2020-10-16 13:36:23,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:23,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:36:23,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [816943369] [2020-10-16 13:36:23,207 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:23,209 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:23,211 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-10-16 13:36:23,212 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:23,220 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:23,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:36:23,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:23,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:36:23,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:36:23,221 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-16 13:36:23,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:23,290 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-10-16 13:36:23,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:36:23,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-16 13:36:23,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:23,293 INFO L225 Difference]: With dead ends: 290 [2020-10-16 13:36:23,293 INFO L226 Difference]: Without dead ends: 242 [2020-10-16 13:36:23,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:36:23,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-16 13:36:23,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-16 13:36:23,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-16 13:36:23,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-10-16 13:36:23,310 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-10-16 13:36:23,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:23,310 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-10-16 13:36:23,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:36:23,311 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-10-16 13:36:23,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:36:23,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:23,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:23,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:36:23,313 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:23,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:23,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-10-16 13:36:23,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:23,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315187754] [2020-10-16 13:36:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:23,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:23,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315187754] [2020-10-16 13:36:23,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:23,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:36:23,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1007215850] [2020-10-16 13:36:23,391 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:23,392 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:23,394 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-10-16 13:36:23,394 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:23,467 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:23,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:36:23,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:23,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:36:23,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:36:23,468 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 4 states. [2020-10-16 13:36:23,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:23,493 INFO L93 Difference]: Finished difference Result 260 states and 694 transitions. [2020-10-16 13:36:23,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:36:23,494 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 13:36:23,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:23,496 INFO L225 Difference]: With dead ends: 260 [2020-10-16 13:36:23,496 INFO L226 Difference]: Without dead ends: 224 [2020-10-16 13:36:23,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:36:23,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-16 13:36:23,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-10-16 13:36:23,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-16 13:36:23,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 610 transitions. [2020-10-16 13:36:23,507 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 610 transitions. Word has length 11 [2020-10-16 13:36:23,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:23,507 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 610 transitions. [2020-10-16 13:36:23,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:36:23,508 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 610 transitions. [2020-10-16 13:36:23,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:36:23,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:23,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:23,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:36:23,510 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:23,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:23,510 INFO L82 PathProgramCache]: Analyzing trace with hash 368404844, now seen corresponding path program 1 times [2020-10-16 13:36:23,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:23,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902308719] [2020-10-16 13:36:23,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:23,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:23,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902308719] [2020-10-16 13:36:23,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:23,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:36:23,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [391281336] [2020-10-16 13:36:23,598 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:23,603 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:23,608 INFO L258 McrAutomatonBuilder]: Finished intersection with 32 states and 58 transitions. [2020-10-16 13:36:23,608 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:23,761 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:23,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:36:23,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:23,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:36:23,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:36:23,763 INFO L87 Difference]: Start difference. First operand 224 states and 610 transitions. Second operand 5 states. [2020-10-16 13:36:23,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:23,824 INFO L93 Difference]: Finished difference Result 293 states and 773 transitions. [2020-10-16 13:36:23,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:36:23,829 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 13:36:23,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:23,830 INFO L225 Difference]: With dead ends: 293 [2020-10-16 13:36:23,831 INFO L226 Difference]: Without dead ends: 146 [2020-10-16 13:36:23,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:36:23,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-16 13:36:23,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-16 13:36:23,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-16 13:36:23,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-10-16 13:36:23,841 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-10-16 13:36:23,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:23,841 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-10-16 13:36:23,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:36:23,842 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-10-16 13:36:23,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:36:23,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:23,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:23,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:36:23,848 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:23,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:23,848 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-10-16 13:36:23,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:23,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319607454] [2020-10-16 13:36:23,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:23,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:23,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319607454] [2020-10-16 13:36:23,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:23,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:36:23,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [394064471] [2020-10-16 13:36:23,965 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:23,968 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:23,972 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-10-16 13:36:23,972 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:24,108 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:24,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:36:24,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:24,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:36:24,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:36:24,110 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-10-16 13:36:24,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:24,163 INFO L93 Difference]: Finished difference Result 188 states and 451 transitions. [2020-10-16 13:36:24,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:36:24,163 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 13:36:24,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:24,164 INFO L225 Difference]: With dead ends: 188 [2020-10-16 13:36:24,164 INFO L226 Difference]: Without dead ends: 74 [2020-10-16 13:36:24,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:36:24,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-16 13:36:24,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-16 13:36:24,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-16 13:36:24,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-10-16 13:36:24,169 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 13 [2020-10-16 13:36:24,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:24,169 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-10-16 13:36:24,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:36:24,169 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-10-16 13:36:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:36:24,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:36:24,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:36:24,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:36:24,171 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:36:24,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:36:24,171 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-10-16 13:36:24,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:36:24,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454538460] [2020-10-16 13:36:24,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:36:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:36:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:36:24,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454538460] [2020-10-16 13:36:24,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:36:24,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:36:24,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [937619481] [2020-10-16 13:36:24,216 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:36:24,218 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:36:24,222 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-10-16 13:36:24,222 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:36:24,229 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:36:24,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:36:24,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:36:24,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:36:24,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:36:24,231 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-10-16 13:36:24,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:36:24,269 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-10-16 13:36:24,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:36:24,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 13:36:24,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:36:24,270 INFO L225 Difference]: With dead ends: 62 [2020-10-16 13:36:24,270 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:36:24,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:36:24,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:36:24,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:36:24,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:36:24,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:36:24,271 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-16 13:36:24,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:36:24,272 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:36:24,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:36:24,272 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:36:24,272 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:36:24,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:36:24,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:36:24 BasicIcfg [2020-10-16 13:36:24,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:36:24,279 INFO L168 Benchmark]: Toolchain (without parser) took 4535.96 ms. Allocated memory was 140.5 MB in the beginning and 245.4 MB in the end (delta: 104.9 MB). Free memory was 102.5 MB in the beginning and 157.3 MB in the end (delta: -54.8 MB). Peak memory consumption was 50.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:24,279 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 13:36:24,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.15 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 162.2 MB in the end (delta: -60.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:24,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.98 ms. Allocated memory is still 203.4 MB. Free memory was 162.2 MB in the beginning and 159.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:24,282 INFO L168 Benchmark]: Boogie Preprocessor took 23.79 ms. Allocated memory is still 203.4 MB. Free memory was 159.6 MB in the beginning and 158.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:24,283 INFO L168 Benchmark]: RCFGBuilder took 385.61 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 135.4 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:24,284 INFO L168 Benchmark]: TraceAbstraction took 3392.02 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 135.4 MB in the beginning and 157.3 MB in the end (delta: -21.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:36:24,288 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.15 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 162.2 MB in the end (delta: -60.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.98 ms. Allocated memory is still 203.4 MB. Free memory was 162.2 MB in the beginning and 159.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.79 ms. Allocated memory is still 203.4 MB. Free memory was 159.6 MB in the beginning and 158.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 385.61 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 135.4 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3392.02 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 135.4 MB in the beginning and 157.3 MB in the end (delta: -21.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 676 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 46 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2579 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 151 SDtfs, 152 SDslu, 227 SDs, 0 SdLazy, 66 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s 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, 0.4s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2725 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...