/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/safe031_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:25:36,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:25:36,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:25:36,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:25:36,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:25:36,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:25:36,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:25:36,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:25:36,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:25:36,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:25:36,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:25:36,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:25:36,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:25:36,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:25:36,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:25:36,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:25:36,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:25:36,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:25:36,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:25:36,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:25:36,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:25:36,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:25:36,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:25:36,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:25:36,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:25:36,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:25:36,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:25:36,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:25:36,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:25:36,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:25:36,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:25:36,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:25:36,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:25:36,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:25:36,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:25:36,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:25:36,518 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 05:25:36,532 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:25:36,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:25:36,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:25:36,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:25:36,534 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:25:36,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:25:36,535 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:25:36,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:25:36,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:25:36,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:25:36,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:25:36,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:25:36,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:25:36,536 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:25:36,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:25:36,536 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:25:36,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:25:36,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:25:36,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:25:36,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:25:36,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:25:36,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:25:36,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:25:36,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:25:36,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:25:36,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:25:36,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:25:36,539 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:25:36,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:25:36,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:25:36,802 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:25:36,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:25:36,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:25:36,819 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:25:36,820 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:25:36,820 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2019-12-19 05:25:36,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d57f7ebd/ec7742f1c4274f58b2100f6fccb6f544/FLAG9dce8c492 [2019-12-19 05:25:37,432 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:25:37,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2019-12-19 05:25:37,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d57f7ebd/ec7742f1c4274f58b2100f6fccb6f544/FLAG9dce8c492 [2019-12-19 05:25:37,719 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d57f7ebd/ec7742f1c4274f58b2100f6fccb6f544 [2019-12-19 05:25:37,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:25:37,729 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:25:37,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:25:37,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:25:37,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:25:37,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:25:37" (1/1) ... [2019-12-19 05:25:37,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53489eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:37, skipping insertion in model container [2019-12-19 05:25:37,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:25:37" (1/1) ... [2019-12-19 05:25:37,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:25:37,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:25:38,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:25:38,348 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:25:38,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:25:38,491 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:25:38,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38 WrapperNode [2019-12-19 05:25:38,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:25:38,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:25:38,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:25:38,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:25:38,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38" (1/1) ... [2019-12-19 05:25:38,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38" (1/1) ... [2019-12-19 05:25:38,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:25:38,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:25:38,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:25:38,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:25:38,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38" (1/1) ... [2019-12-19 05:25:38,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38" (1/1) ... [2019-12-19 05:25:38,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38" (1/1) ... [2019-12-19 05:25:38,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38" (1/1) ... [2019-12-19 05:25:38,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38" (1/1) ... [2019-12-19 05:25:38,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38" (1/1) ... [2019-12-19 05:25:38,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38" (1/1) ... [2019-12-19 05:25:38,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:25:38,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:25:38,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:25:38,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:25:38,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38" (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 05:25:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:25:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:25:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:25:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:25:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:25:38,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:25:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:25:38,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:25:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:25:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:25:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:25:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:25:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:25:38,636 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 05:25:39,013 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:25:39,014 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:25:39,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:25:39 BoogieIcfgContainer [2019-12-19 05:25:39,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:25:39,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:25:39,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:25:39,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:25:39,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:25:37" (1/3) ... [2019-12-19 05:25:39,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee44a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:25:39, skipping insertion in model container [2019-12-19 05:25:39,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:38" (2/3) ... [2019-12-19 05:25:39,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee44a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:25:39, skipping insertion in model container [2019-12-19 05:25:39,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:25:39" (3/3) ... [2019-12-19 05:25:39,023 INFO L109 eAbstractionObserver]: Analyzing ICFG safe031_tso.opt.i [2019-12-19 05:25:39,032 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:25:39,032 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:25:39,039 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:25:39,041 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:25:39,067 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,068 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,068 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,069 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,069 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,069 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,070 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,070 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,070 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,070 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,071 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,071 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,071 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,072 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,072 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,072 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,072 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,073 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,077 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,077 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,077 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,078 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,091 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,092 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,092 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,094 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,096 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,097 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,097 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,097 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:39,113 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:25:39,133 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:25:39,133 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:25:39,134 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:25:39,134 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:25:39,134 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:25:39,134 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:25:39,134 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:25:39,135 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:25:39,145 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 05:25:39,223 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 05:25:39,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 05:25:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 05:25:39,241 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:39,243 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] [2019-12-19 05:25:39,243 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:39,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:39,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1039992911, now seen corresponding path program 1 times [2019-12-19 05:25:39,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:39,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974538252] [2019-12-19 05:25:39,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:39,625 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 05:25:39,626 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974538252] [2019-12-19 05:25:39,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:39,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:25:39,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516957581] [2019-12-19 05:25:39,633 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:25:39,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:39,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:25:39,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:25:39,652 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 05:25:39,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:39,816 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 05:25:39,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:25:39,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 05:25:39,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:39,846 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 05:25:39,846 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 05:25:39,847 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 05:25:39,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 05:25:39,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 05:25:39,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 05:25:39,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 05:25:39,952 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 05:25:39,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:39,952 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 05:25:39,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:25:39,953 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 05:25:39,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:25:39,956 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:39,956 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] [2019-12-19 05:25:39,956 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:39,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:39,957 INFO L82 PathProgramCache]: Analyzing trace with hash -194802381, now seen corresponding path program 1 times [2019-12-19 05:25:39,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:39,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016526596] [2019-12-19 05:25:39,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:40,118 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 05:25:40,118 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016526596] [2019-12-19 05:25:40,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:40,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:25:40,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443374074] [2019-12-19 05:25:40,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:25:40,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:40,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:25:40,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:25:40,121 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 05:25:40,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:40,206 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 05:25:40,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:25:40,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 05:25:40,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:40,212 INFO L225 Difference]: With dead ends: 600 [2019-12-19 05:25:40,213 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 05:25:40,214 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 05:25:40,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 05:25:40,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 05:25:40,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 05:25:40,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 05:25:40,258 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 05:25:40,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:40,258 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 05:25:40,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:25:40,259 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 05:25:40,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:25:40,261 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:40,261 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 05:25:40,262 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:40,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:40,262 INFO L82 PathProgramCache]: Analyzing trace with hash 149291031, now seen corresponding path program 1 times [2019-12-19 05:25:40,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:40,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087525035] [2019-12-19 05:25:40,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:40,422 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 05:25:40,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087525035] [2019-12-19 05:25:40,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:40,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:25:40,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354332090] [2019-12-19 05:25:40,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:25:40,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:40,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:25:40,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:25:40,425 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 05:25:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:40,518 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 05:25:40,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:25:40,518 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 05:25:40,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:40,521 INFO L225 Difference]: With dead ends: 402 [2019-12-19 05:25:40,522 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 05:25:40,522 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 05:25:40,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 05:25:40,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 05:25:40,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 05:25:40,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 05:25:40,534 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 05:25:40,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:40,535 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 05:25:40,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:25:40,535 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 05:25:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:25:40,537 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:40,537 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 05:25:40,537 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:40,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:40,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1292788502, now seen corresponding path program 1 times [2019-12-19 05:25:40,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:40,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069162544] [2019-12-19 05:25:40,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:40,740 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 05:25:40,741 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069162544] [2019-12-19 05:25:40,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:40,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:25:40,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413990664] [2019-12-19 05:25:40,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:25:40,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:40,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:25:40,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:25:40,745 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 6 states. [2019-12-19 05:25:40,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:40,912 INFO L93 Difference]: Finished difference Result 564 states and 1499 transitions. [2019-12-19 05:25:40,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:25:40,913 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:25:40,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:40,917 INFO L225 Difference]: With dead ends: 564 [2019-12-19 05:25:40,917 INFO L226 Difference]: Without dead ends: 267 [2019-12-19 05:25:40,919 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:25:40,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-12-19 05:25:40,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2019-12-19 05:25:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-12-19 05:25:40,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 701 transitions. [2019-12-19 05:25:40,940 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 701 transitions. Word has length 33 [2019-12-19 05:25:40,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:40,940 INFO L462 AbstractCegarLoop]: Abstraction has 267 states and 701 transitions. [2019-12-19 05:25:40,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:25:40,941 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 701 transitions. [2019-12-19 05:25:40,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:25:40,943 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:40,943 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 05:25:40,944 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:40,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:40,944 INFO L82 PathProgramCache]: Analyzing trace with hash 839661758, now seen corresponding path program 2 times [2019-12-19 05:25:40,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:40,945 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104273138] [2019-12-19 05:25:40,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:41,172 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 05:25:41,175 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104273138] [2019-12-19 05:25:41,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:41,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:25:41,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156712429] [2019-12-19 05:25:41,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:25:41,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:41,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:25:41,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:25:41,177 INFO L87 Difference]: Start difference. First operand 267 states and 701 transitions. Second operand 7 states. [2019-12-19 05:25:41,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:41,316 INFO L93 Difference]: Finished difference Result 438 states and 1181 transitions. [2019-12-19 05:25:41,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:25:41,318 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 05:25:41,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:41,321 INFO L225 Difference]: With dead ends: 438 [2019-12-19 05:25:41,322 INFO L226 Difference]: Without dead ends: 264 [2019-12-19 05:25:41,322 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-19 05:25:41,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-12-19 05:25:41,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2019-12-19 05:25:41,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-12-19 05:25:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 695 transitions. [2019-12-19 05:25:41,332 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 695 transitions. Word has length 33 [2019-12-19 05:25:41,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:41,333 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 695 transitions. [2019-12-19 05:25:41,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:25:41,333 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 695 transitions. [2019-12-19 05:25:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:25:41,334 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:41,334 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 05:25:41,338 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:41,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:41,339 INFO L82 PathProgramCache]: Analyzing trace with hash 301806180, now seen corresponding path program 3 times [2019-12-19 05:25:41,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:41,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369273744] [2019-12-19 05:25:41,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:41,511 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 05:25:41,511 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369273744] [2019-12-19 05:25:41,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:41,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:25:41,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632562717] [2019-12-19 05:25:41,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:25:41,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:41,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:25:41,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:25:41,513 INFO L87 Difference]: Start difference. First operand 264 states and 695 transitions. Second operand 7 states. [2019-12-19 05:25:41,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:41,661 INFO L93 Difference]: Finished difference Result 210 states and 533 transitions. [2019-12-19 05:25:41,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:25:41,661 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 05:25:41,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:41,662 INFO L225 Difference]: With dead ends: 210 [2019-12-19 05:25:41,662 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:25:41,663 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 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 05:25:41,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:25:41,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:25:41,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:25:41,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:25:41,664 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 05:25:41,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:41,664 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:25:41,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:25:41,664 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:25:41,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:25:41,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:25:41 BasicIcfg [2019-12-19 05:25:41,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:25:41,678 INFO L168 Benchmark]: Toolchain (without parser) took 3946.55 ms. Allocated memory was 144.7 MB in the beginning and 251.1 MB in the end (delta: 106.4 MB). Free memory was 100.4 MB in the beginning and 176.4 MB in the end (delta: -76.0 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:41,679 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 05:25:41,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.76 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.2 MB in the beginning and 157.1 MB in the end (delta: -56.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:41,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.26 ms. Allocated memory is still 201.9 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:41,689 INFO L168 Benchmark]: Boogie Preprocessor took 24.84 ms. Allocated memory is still 201.9 MB. Free memory was 155.1 MB in the beginning and 153.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:41,689 INFO L168 Benchmark]: RCFGBuilder took 441.66 ms. Allocated memory is still 201.9 MB. Free memory was 153.1 MB in the beginning and 132.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:41,690 INFO L168 Benchmark]: TraceAbstraction took 2656.84 ms. Allocated memory was 201.9 MB in the beginning and 251.1 MB in the end (delta: 49.3 MB). Free memory was 132.8 MB in the beginning and 176.4 MB in the end (delta: -43.5 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:41,701 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 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 761.76 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.2 MB in the beginning and 157.1 MB in the end (delta: -56.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.26 ms. Allocated memory is still 201.9 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.84 ms. Allocated memory is still 201.9 MB. Free memory was 155.1 MB in the beginning and 153.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.66 ms. Allocated memory is still 201.9 MB. Free memory was 153.1 MB in the beginning and 132.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2656.84 ms. Allocated memory was 201.9 MB in the beginning and 251.1 MB in the end (delta: 49.3 MB). Free memory was 132.8 MB in the beginning and 176.4 MB in the end (delta: -43.5 MB). Peak memory consumption was 5.7 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 287 SDtfs, 354 SDslu, 706 SDs, 0 SdLazy, 94 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 16026 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...