/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 23:03:17,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 23:03:17,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 23:03:17,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 23:03:17,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 23:03:17,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 23:03:17,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 23:03:17,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 23:03:17,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 23:03:17,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 23:03:17,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 23:03:17,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 23:03:17,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 23:03:17,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 23:03:17,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 23:03:17,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 23:03:17,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 23:03:17,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 23:03:17,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 23:03:17,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 23:03:17,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 23:03:17,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 23:03:17,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 23:03:17,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 23:03:17,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 23:03:17,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 23:03:17,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 23:03:17,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 23:03:17,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 23:03:17,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 23:03:17,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 23:03:17,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 23:03:17,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 23:03:17,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 23:03:17,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 23:03:17,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 23:03:17,530 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-MCR.epf [2019-12-27 23:03:17,554 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 23:03:17,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 23:03:17,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 23:03:17,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 23:03:17,557 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 23:03:17,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 23:03:17,557 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 23:03:17,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 23:03:17,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 23:03:17,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 23:03:17,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 23:03:17,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 23:03:17,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 23:03:17,560 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 23:03:17,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 23:03:17,560 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 23:03:17,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 23:03:17,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 23:03:17,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 23:03:17,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 23:03:17,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 23:03:17,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 23:03:17,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 23:03:17,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 23:03:17,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 23:03:17,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 23:03:17,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 23:03:17,563 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 23:03:17,563 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 23:03:17,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 23:03:17,564 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 23:03:17,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 23:03:17,850 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 23:03:17,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 23:03:17,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 23:03:17,870 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 23:03:17,870 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 23:03:17,871 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2019-12-27 23:03:17,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18b48128/428df947c8a0476bb05b816a4e9ded96/FLAG82c44f813 [2019-12-27 23:03:18,511 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 23:03:18,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2019-12-27 23:03:18,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18b48128/428df947c8a0476bb05b816a4e9ded96/FLAG82c44f813 [2019-12-27 23:03:18,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18b48128/428df947c8a0476bb05b816a4e9ded96 [2019-12-27 23:03:18,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 23:03:18,808 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 23:03:18,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 23:03:18,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 23:03:18,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 23:03:18,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:03:18" (1/1) ... [2019-12-27 23:03:18,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41de4019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:18, skipping insertion in model container [2019-12-27 23:03:18,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:03:18" (1/1) ... [2019-12-27 23:03:18,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 23:03:18,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 23:03:19,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:03:19,337 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 23:03:19,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:03:19,486 INFO L208 MainTranslator]: Completed translation [2019-12-27 23:03:19,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19 WrapperNode [2019-12-27 23:03:19,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 23:03:19,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 23:03:19,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 23:03:19,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 23:03:19,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19" (1/1) ... [2019-12-27 23:03:19,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19" (1/1) ... [2019-12-27 23:03:19,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 23:03:19,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 23:03:19,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 23:03:19,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 23:03:19,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19" (1/1) ... [2019-12-27 23:03:19,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19" (1/1) ... [2019-12-27 23:03:19,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19" (1/1) ... [2019-12-27 23:03:19,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19" (1/1) ... [2019-12-27 23:03:19,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19" (1/1) ... [2019-12-27 23:03:19,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19" (1/1) ... [2019-12-27 23:03:19,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19" (1/1) ... [2019-12-27 23:03:19,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 23:03:19,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 23:03:19,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 23:03:19,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 23:03:19,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19" (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 [2019-12-27 23:03:19,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 23:03:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 23:03:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 23:03:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 23:03:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 23:03:19,640 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 23:03:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 23:03:19,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 23:03:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 23:03:19,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 23:03:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 23:03:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 23:03:19,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 23:03:19,643 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 23:03:19,979 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 23:03:19,979 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 23:03:19,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:03:19 BoogieIcfgContainer [2019-12-27 23:03:19,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 23:03:19,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 23:03:19,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 23:03:19,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 23:03:19,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 11:03:18" (1/3) ... [2019-12-27 23:03:19,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdea6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:03:19, skipping insertion in model container [2019-12-27 23:03:19,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:03:19" (2/3) ... [2019-12-27 23:03:19,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdea6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:03:19, skipping insertion in model container [2019-12-27 23:03:19,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:03:19" (3/3) ... [2019-12-27 23:03:19,989 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2019-12-27 23:03:20,003 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 23:03:20,003 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 23:03:20,010 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 23:03:20,011 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 23:03:20,043 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,043 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,043 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,044 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,044 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,044 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,045 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,045 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,045 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,046 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,046 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,046 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,047 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,047 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,047 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,047 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,048 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,048 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,052 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,052 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,053 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,053 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,058 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,060 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,060 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,060 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,068 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,069 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,069 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,069 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:03:20,100 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 23:03:20,116 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 23:03:20,117 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 23:03:20,117 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 23:03:20,117 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 23:03:20,117 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 23:03:20,117 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 23:03:20,118 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 23:03:20,118 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 23:03:20,130 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-27 23:03:20,133 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 23:03:20,178 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 23:03:20,178 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 23:03:20,184 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 23:03:20,187 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 23:03:20,206 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 23:03:20,206 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 23:03:20,208 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 23:03:20,209 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 23:03:20,211 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 23:03:21,652 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 23:03:21,731 INFO L206 etLargeBlockEncoding]: Checked pairs total: 425 [2019-12-27 23:03:21,731 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 23:03:21,735 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 23:03:21,744 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 23:03:21,747 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 23:03:21,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 23:03:21,754 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:03:21,754 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:03:21,755 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:03:21,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:03:21,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1086085239, now seen corresponding path program 1 times [2019-12-27 23:03:21,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:03:21,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289829431] [2019-12-27 23:03:21,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:03:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:03:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:03:22,040 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289829431] [2019-12-27 23:03:22,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:03:22,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 23:03:22,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1384528086] [2019-12-27 23:03:22,043 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:03:22,049 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:03:22,064 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 23:03:22,064 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:03:22,069 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:03:22,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 23:03:22,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:03:22,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 23:03:22,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 23:03:22,087 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-12-27 23:03:22,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:03:22,141 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-12-27 23:03:22,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 23:03:22,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-27 23:03:22,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:03:22,154 INFO L225 Difference]: With dead ends: 58 [2019-12-27 23:03:22,154 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 23:03:22,156 INFO L631 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 [2019-12-27 23:03:22,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 23:03:22,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 23:03:22,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 23:03:22,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-12-27 23:03:22,195 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-12-27 23:03:22,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:03:22,195 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-12-27 23:03:22,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 23:03:22,196 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-12-27 23:03:22,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 23:03:22,196 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:03:22,197 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:03:22,197 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:03:22,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:03:22,197 INFO L82 PathProgramCache]: Analyzing trace with hash -744608244, now seen corresponding path program 1 times [2019-12-27 23:03:22,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:03:22,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138305205] [2019-12-27 23:03:22,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:03:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:03:22,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:03:22,312 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138305205] [2019-12-27 23:03:22,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:03:22,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:03:22,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1366881324] [2019-12-27 23:03:22,313 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:03:22,314 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:03:22,317 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 23:03:22,318 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:03:22,319 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:03:22,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 23:03:22,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:03:22,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 23:03:22,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 23:03:22,321 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-12-27 23:03:22,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:03:22,380 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-12-27 23:03:22,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 23:03:22,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-27 23:03:22,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:03:22,381 INFO L225 Difference]: With dead ends: 37 [2019-12-27 23:03:22,381 INFO L226 Difference]: Without dead ends: 30 [2019-12-27 23:03:22,382 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 23:03:22,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-27 23:03:22,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-27 23:03:22,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-27 23:03:22,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-12-27 23:03:22,388 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-12-27 23:03:22,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:03:22,388 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-12-27 23:03:22,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 23:03:22,388 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-12-27 23:03:22,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 23:03:22,389 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:03:22,389 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:03:22,389 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:03:22,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:03:22,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1607968112, now seen corresponding path program 1 times [2019-12-27 23:03:22,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:03:22,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365213527] [2019-12-27 23:03:22,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:03:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:03:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:03:22,480 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365213527] [2019-12-27 23:03:22,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:03:22,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:03:22,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [303480610] [2019-12-27 23:03:22,481 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:03:22,482 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:03:22,485 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 18 transitions. [2019-12-27 23:03:22,485 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:03:22,486 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:03:22,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 23:03:22,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:03:22,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 23:03:22,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 23:03:22,487 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 4 states. [2019-12-27 23:03:22,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:03:22,513 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2019-12-27 23:03:22,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 23:03:22,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 23:03:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:03:22,515 INFO L225 Difference]: With dead ends: 35 [2019-12-27 23:03:22,515 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 23:03:22,516 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 23:03:22,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 23:03:22,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-12-27 23:03:22,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-27 23:03:22,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 47 transitions. [2019-12-27 23:03:22,524 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 47 transitions. Word has length 10 [2019-12-27 23:03:22,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:03:22,524 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 47 transitions. [2019-12-27 23:03:22,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 23:03:22,526 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2019-12-27 23:03:22,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 23:03:22,527 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:03:22,527 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:03:22,527 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:03:22,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:03:22,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1607961385, now seen corresponding path program 1 times [2019-12-27 23:03:22,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:03:22,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043868219] [2019-12-27 23:03:22,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:03:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:03:22,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:03:22,638 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043868219] [2019-12-27 23:03:22,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:03:22,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 23:03:22,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1933442913] [2019-12-27 23:03:22,640 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:03:22,641 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:03:22,643 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 17 states and 22 transitions. [2019-12-27 23:03:22,644 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:03:22,682 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 23:03:22,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 23:03:22,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:03:22,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 23:03:22,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-27 23:03:22,684 INFO L87 Difference]: Start difference. First operand 30 states and 47 transitions. Second operand 7 states. [2019-12-27 23:03:22,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:03:22,777 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2019-12-27 23:03:22,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 23:03:22,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-12-27 23:03:22,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:03:22,778 INFO L225 Difference]: With dead ends: 28 [2019-12-27 23:03:22,779 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 23:03:22,779 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2019-12-27 23:03:22,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 23:03:22,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 23:03:22,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 23:03:22,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 23:03:22,782 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-27 23:03:22,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:03:22,782 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 23:03:22,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 23:03:22,783 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 23:03:22,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 23:03:22,783 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:03:22,783 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:03:22,784 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:03:22,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:03:22,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1627425577, now seen corresponding path program 1 times [2019-12-27 23:03:22,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:03:22,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481143640] [2019-12-27 23:03:22,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:03:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:03:22,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:03:22,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481143640] [2019-12-27 23:03:22,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:03:22,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:03:22,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1451826295] [2019-12-27 23:03:22,858 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:03:22,860 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:03:22,862 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 23:03:22,862 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:03:22,863 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:03:22,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 23:03:22,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:03:22,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 23:03:22,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 23:03:22,864 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 23:03:22,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:03:22,882 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-12-27 23:03:22,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 23:03:22,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 23:03:22,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:03:22,884 INFO L225 Difference]: With dead ends: 19 [2019-12-27 23:03:22,884 INFO L226 Difference]: Without dead ends: 14 [2019-12-27 23:03:22,884 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 23:03:22,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-27 23:03:22,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-27 23:03:22,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-27 23:03:22,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-27 23:03:22,888 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-12-27 23:03:22,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:03:22,888 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-27 23:03:22,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 23:03:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-27 23:03:22,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 23:03:22,889 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:03:22,890 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:03:22,890 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:03:22,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:03:22,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1633797007, now seen corresponding path program 2 times [2019-12-27 23:03:22,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:03:22,891 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489566121] [2019-12-27 23:03:22,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:03:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:03:22,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:03:22,972 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489566121] [2019-12-27 23:03:22,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:03:22,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:03:22,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [292494974] [2019-12-27 23:03:22,973 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:03:22,978 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:03:22,981 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 23:03:22,981 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:03:22,996 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 23:03:22,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 23:03:22,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:03:22,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 23:03:22,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 23:03:22,997 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 5 states. [2019-12-27 23:03:23,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:03:23,016 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-27 23:03:23,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 23:03:23,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 23:03:23,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:03:23,017 INFO L225 Difference]: With dead ends: 13 [2019-12-27 23:03:23,017 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 23:03:23,018 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 23:03:23,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 23:03:23,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 23:03:23,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 23:03:23,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 23:03:23,018 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 23:03:23,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:03:23,019 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 23:03:23,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 23:03:23,019 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 23:03:23,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 23:03:23,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 11:03:23 BasicIcfg [2019-12-27 23:03:23,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 23:03:23,025 INFO L168 Benchmark]: Toolchain (without parser) took 4217.24 ms. Allocated memory was 145.2 MB in the beginning and 247.5 MB in the end (delta: 102.2 MB). Free memory was 101.3 MB in the beginning and 113.1 MB in the end (delta: -11.8 MB). Peak memory consumption was 90.4 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:23,026 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 23:03:23,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.71 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 101.1 MB in the beginning and 158.5 MB in the end (delta: -57.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:23,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.92 ms. Allocated memory is still 201.3 MB. Free memory was 158.5 MB in the beginning and 155.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:23,029 INFO L168 Benchmark]: Boogie Preprocessor took 23.75 ms. Allocated memory is still 201.3 MB. Free memory was 155.9 MB in the beginning and 154.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:23,030 INFO L168 Benchmark]: RCFGBuilder took 402.53 ms. Allocated memory is still 201.3 MB. Free memory was 154.6 MB in the beginning and 134.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:23,031 INFO L168 Benchmark]: TraceAbstraction took 3041.20 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 133.6 MB in the beginning and 113.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 66.7 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:23,035 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 677.71 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 101.1 MB in the beginning and 158.5 MB in the end (delta: -57.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 66.92 ms. Allocated memory is still 201.3 MB. Free memory was 158.5 MB in the beginning and 155.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.75 ms. Allocated memory is still 201.3 MB. Free memory was 155.9 MB in the beginning and 154.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 402.53 ms. Allocated memory is still 201.3 MB. Free memory was 154.6 MB in the beginning and 134.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3041.20 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 133.6 MB in the beginning and 113.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 66.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 64 ProgramPointsBefore, 22 ProgramPointsAfterwards, 55 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 236 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 425 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 65 SDslu, 83 SDs, 0 SdLazy, 63 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...