/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:08:23,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:08:23,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:08:23,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:08:23,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:08:23,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:08:23,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:08:23,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:08:23,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:08:23,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:08:23,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:08:23,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:08:23,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:08:23,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:08:23,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:08:23,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:08:23,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:08:23,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:08:23,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:08:23,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:08:23,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:08:23,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:08:23,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:08:23,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:08:23,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:08:23,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:08:23,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:08:23,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:08:23,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:08:23,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:08:23,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:08:23,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:08:23,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:08:23,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:08:23,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:08:23,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:08:23,528 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-NoLbe.epf [2019-12-19 05:08:23,542 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:08:23,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:08:23,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:08:23,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:08:23,544 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:08:23,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:08:23,545 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:08:23,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:08:23,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:08:23,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:08:23,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:08:23,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:08:23,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:08:23,546 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:08:23,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:08:23,547 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:08:23,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:08:23,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:08:23,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:08:23,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:08:23,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:08:23,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:08:23,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:08:23,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:08:23,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:08:23,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:08:23,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:08:23,549 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:08:23,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:08:23,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:08:23,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:08:23,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:08:23,897 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:08:23,898 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:08:23,898 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:08:23,899 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2019-12-19 05:08:23,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fefc03f7/245e3d4c0628425eafb61a85ff39f97a/FLAG84848cd29 [2019-12-19 05:08:24,565 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:08:24,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2019-12-19 05:08:24,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fefc03f7/245e3d4c0628425eafb61a85ff39f97a/FLAG84848cd29 [2019-12-19 05:08:24,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fefc03f7/245e3d4c0628425eafb61a85ff39f97a [2019-12-19 05:08:24,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:08:24,812 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:08:24,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:08:24,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:08:24,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:08:24,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:08:24" (1/1) ... [2019-12-19 05:08:24,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e76b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:24, skipping insertion in model container [2019-12-19 05:08:24,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:08:24" (1/1) ... [2019-12-19 05:08:24,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:08:24,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:08:25,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:08:25,433 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:08:25,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:08:25,563 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:08:25,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25 WrapperNode [2019-12-19 05:08:25,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:08:25,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:08:25,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:08:25,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:08:25,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:08:25,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:08:25,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:08:25,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:08:25,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:08:25,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:08:25,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:08:25,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:08:25,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (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 [2019-12-19 05:08:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:08:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:08:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:08:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:08:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:08:25,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:08:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:08:25,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:08:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:08:25,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:08:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:08:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:08:25,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:08:25,723 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:08:26,123 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:08:26,123 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:08:26,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:08:26 BoogieIcfgContainer [2019-12-19 05:08:26,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:08:26,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:08:26,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:08:26,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:08:26,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:08:24" (1/3) ... [2019-12-19 05:08:26,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663dd3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:08:26, skipping insertion in model container [2019-12-19 05:08:26,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (2/3) ... [2019-12-19 05:08:26,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663dd3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:08:26, skipping insertion in model container [2019-12-19 05:08:26,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:08:26" (3/3) ... [2019-12-19 05:08:26,133 INFO L109 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2019-12-19 05:08:26,141 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:08:26,141 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:08:26,148 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:08:26,149 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:08:26,187 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,188 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,188 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,188 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,189 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,189 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,189 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,190 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,190 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,191 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,192 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,192 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,192 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,193 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,193 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,193 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,193 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,194 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,199 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,200 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,200 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,200 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,205 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,205 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,206 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,206 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,208 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,208 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,209 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,209 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:26,230 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:08:26,251 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:08:26,251 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:08:26,251 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:08:26,252 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:08:26,252 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:08:26,252 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:08:26,252 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:08:26,252 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:08:26,264 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-19 05:08:26,363 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-19 05:08:26,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-19 05:08:26,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:08:26,397 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:26,399 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:08:26,400 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:26,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:26,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1986917389, now seen corresponding path program 1 times [2019-12-19 05:08:26,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:26,413 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159757834] [2019-12-19 05:08:26,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:08:26,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159757834] [2019-12-19 05:08:26,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:26,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:08:26,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970571418] [2019-12-19 05:08:26,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:08:26,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:26,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:08:26,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:08:26,800 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-19 05:08:26,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:26,930 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-19 05:08:26,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:08:26,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-19 05:08:26,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:26,967 INFO L225 Difference]: With dead ends: 1296 [2019-12-19 05:08:26,968 INFO L226 Difference]: Without dead ends: 602 [2019-12-19 05:08:26,970 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:08:27,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-19 05:08:27,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-19 05:08:27,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-19 05:08:27,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-19 05:08:27,094 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-19 05:08:27,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:27,095 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-19 05:08:27,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:08:27,095 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-19 05:08:27,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:08:27,098 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:27,098 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:08:27,098 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:27,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:27,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1215038929, now seen corresponding path program 1 times [2019-12-19 05:08:27,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:27,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843422011] [2019-12-19 05:08:27,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:08:27,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843422011] [2019-12-19 05:08:27,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:27,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:08:27,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61586178] [2019-12-19 05:08:27,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:08:27,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:27,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:08:27,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:08:27,257 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-19 05:08:27,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:27,336 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-19 05:08:27,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:08:27,337 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-19 05:08:27,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:27,342 INFO L225 Difference]: With dead ends: 602 [2019-12-19 05:08:27,342 INFO L226 Difference]: Without dead ends: 539 [2019-12-19 05:08:27,343 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:08:27,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-19 05:08:27,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-19 05:08:27,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-19 05:08:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-19 05:08:27,377 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-19 05:08:27,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:27,378 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-19 05:08:27,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:08:27,378 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-19 05:08:27,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:08:27,380 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:27,380 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:08:27,381 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:27,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:27,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1863729100, now seen corresponding path program 1 times [2019-12-19 05:08:27,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:27,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400190368] [2019-12-19 05:08:27,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:08:27,563 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400190368] [2019-12-19 05:08:27,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:27,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:08:27,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872073338] [2019-12-19 05:08:27,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:08:27,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:27,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:08:27,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:08:27,565 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-19 05:08:27,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:27,662 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-19 05:08:27,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:08:27,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 05:08:27,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:27,665 INFO L225 Difference]: With dead ends: 404 [2019-12-19 05:08:27,666 INFO L226 Difference]: Without dead ends: 350 [2019-12-19 05:08:27,666 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:08:27,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-19 05:08:27,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-19 05:08:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-19 05:08:27,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-19 05:08:27,679 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-19 05:08:27,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:27,680 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-19 05:08:27,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:08:27,680 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-19 05:08:27,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:08:27,682 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:27,682 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:08:27,682 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:27,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:27,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1824391938, now seen corresponding path program 1 times [2019-12-19 05:08:27,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:27,683 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960339477] [2019-12-19 05:08:27,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:27,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:08:27,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960339477] [2019-12-19 05:08:27,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:27,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:08:27,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656616029] [2019-12-19 05:08:27,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:08:27,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:27,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:08:27,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:08:27,851 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 7 states. [2019-12-19 05:08:28,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:28,007 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-19 05:08:28,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:08:28,008 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:08:28,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:28,010 INFO L225 Difference]: With dead ends: 521 [2019-12-19 05:08:28,010 INFO L226 Difference]: Without dead ends: 278 [2019-12-19 05:08:28,011 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:08:28,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-19 05:08:28,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-12-19 05:08:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-12-19 05:08:28,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 727 transitions. [2019-12-19 05:08:28,022 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 727 transitions. Word has length 35 [2019-12-19 05:08:28,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:28,023 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 727 transitions. [2019-12-19 05:08:28,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:08:28,023 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 727 transitions. [2019-12-19 05:08:28,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:08:28,025 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:28,025 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:08:28,025 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:28,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:28,026 INFO L82 PathProgramCache]: Analyzing trace with hash 480987120, now seen corresponding path program 2 times [2019-12-19 05:08:28,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:28,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846882466] [2019-12-19 05:08:28,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:28,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:08:28,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846882466] [2019-12-19 05:08:28,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:28,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:08:28,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439881549] [2019-12-19 05:08:28,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:08:28,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:28,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:08:28,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:08:28,210 INFO L87 Difference]: Start difference. First operand 278 states and 727 transitions. Second operand 7 states. [2019-12-19 05:08:28,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:28,434 INFO L93 Difference]: Finished difference Result 440 states and 1186 transitions. [2019-12-19 05:08:28,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:08:28,435 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:08:28,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:28,438 INFO L225 Difference]: With dead ends: 440 [2019-12-19 05:08:28,439 INFO L226 Difference]: Without dead ends: 254 [2019-12-19 05:08:28,439 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:08:28,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-19 05:08:28,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2019-12-19 05:08:28,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-12-19 05:08:28,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 673 transitions. [2019-12-19 05:08:28,448 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 673 transitions. Word has length 35 [2019-12-19 05:08:28,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:28,449 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 673 transitions. [2019-12-19 05:08:28,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:08:28,449 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 673 transitions. [2019-12-19 05:08:28,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:08:28,450 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:28,451 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:08:28,451 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:28,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:28,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1845050856, now seen corresponding path program 3 times [2019-12-19 05:08:28,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:28,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863853814] [2019-12-19 05:08:28,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:08:28,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863853814] [2019-12-19 05:08:28,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:28,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:08:28,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037854526] [2019-12-19 05:08:28,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:08:28,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:28,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:08:28,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:08:28,607 INFO L87 Difference]: Start difference. First operand 254 states and 673 transitions. Second operand 8 states. [2019-12-19 05:08:28,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:28,711 INFO L93 Difference]: Finished difference Result 200 states and 511 transitions. [2019-12-19 05:08:28,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:08:28,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 05:08:28,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:28,712 INFO L225 Difference]: With dead ends: 200 [2019-12-19 05:08:28,712 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:08:28,712 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:08:28,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:08:28,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:08:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:08:28,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:08:28,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-19 05:08:28,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:28,714 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:08:28,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:08:28,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:08:28,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:08:28,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:08:28 BasicIcfg [2019-12-19 05:08:28,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:08:28,728 INFO L168 Benchmark]: Toolchain (without parser) took 3913.84 ms. Allocated memory was 142.6 MB in the beginning and 256.9 MB in the end (delta: 114.3 MB). Free memory was 99.7 MB in the beginning and 173.9 MB in the end (delta: -74.2 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,730 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.14 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 99.3 MB in the beginning and 157.5 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.84 ms. Allocated memory is still 200.8 MB. Free memory was 157.5 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,741 INFO L168 Benchmark]: Boogie Preprocessor took 28.55 ms. Allocated memory is still 200.8 MB. Free memory was 155.3 MB in the beginning and 153.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,742 INFO L168 Benchmark]: RCFGBuilder took 480.12 ms. Allocated memory is still 200.8 MB. Free memory was 153.2 MB in the beginning and 133.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,743 INFO L168 Benchmark]: TraceAbstraction took 2597.24 ms. Allocated memory was 200.8 MB in the beginning and 256.9 MB in the end (delta: 56.1 MB). Free memory was 132.3 MB in the beginning and 173.9 MB in the end (delta: -41.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,755 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.14 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 99.3 MB in the beginning and 157.5 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.84 ms. Allocated memory is still 200.8 MB. Free memory was 157.5 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.55 ms. Allocated memory is still 200.8 MB. Free memory was 155.3 MB in the beginning and 153.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 480.12 ms. Allocated memory is still 200.8 MB. Free memory was 153.2 MB in the beginning and 133.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2597.24 ms. Allocated memory was 200.8 MB in the beginning and 256.9 MB in the end (delta: 56.1 MB). Free memory was 132.3 MB in the beginning and 173.9 MB in the end (delta: -41.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 317 SDtfs, 363 SDslu, 868 SDs, 0 SdLazy, 110 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 20218 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...