/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 04:43:33,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 04:43:33,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 04:43:33,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 04:43:33,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 04:43:33,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 04:43:33,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 04:43:33,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 04:43:33,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 04:43:33,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 04:43:33,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 04:43:33,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 04:43:33,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 04:43:33,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 04:43:33,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 04:43:33,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 04:43:33,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 04:43:33,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 04:43:33,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 04:43:33,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 04:43:33,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 04:43:33,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 04:43:33,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 04:43:33,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 04:43:33,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 04:43:33,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 04:43:33,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 04:43:33,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 04:43:33,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 04:43:33,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 04:43:33,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 04:43:33,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 04:43:33,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 04:43:33,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 04:43:33,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 04:43:33,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 04:43:33,760 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-MCR.epf [2019-12-28 04:43:33,780 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 04:43:33,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 04:43:33,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 04:43:33,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 04:43:33,782 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 04:43:33,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 04:43:33,782 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 04:43:33,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 04:43:33,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 04:43:33,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 04:43:33,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 04:43:33,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 04:43:33,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 04:43:33,784 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 04:43:33,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 04:43:33,784 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 04:43:33,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 04:43:33,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 04:43:33,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 04:43:33,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 04:43:33,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 04:43:33,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:43:33,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 04:43:33,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 04:43:33,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 04:43:33,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 04:43:33,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 04:43:33,786 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 04:43:33,787 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 04:43:33,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 04:43:33,787 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 04:43:33,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 04:43:34,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 04:43:34,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 04:43:34,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 04:43:34,110 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 04:43:34,110 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 04:43:34,111 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2019-12-28 04:43:34,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5d8f8ab9/df54c96bab6b4c009c84022717a8c5d8/FLAG980ec0e62 [2019-12-28 04:43:34,715 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 04:43:34,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2019-12-28 04:43:34,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5d8f8ab9/df54c96bab6b4c009c84022717a8c5d8/FLAG980ec0e62 [2019-12-28 04:43:35,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5d8f8ab9/df54c96bab6b4c009c84022717a8c5d8 [2019-12-28 04:43:35,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 04:43:35,018 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 04:43:35,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 04:43:35,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 04:43:35,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 04:43:35,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:43:35" (1/1) ... [2019-12-28 04:43:35,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6cab65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35, skipping insertion in model container [2019-12-28 04:43:35,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:43:35" (1/1) ... [2019-12-28 04:43:35,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 04:43:35,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 04:43:35,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:43:35,602 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 04:43:35,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:43:35,750 INFO L208 MainTranslator]: Completed translation [2019-12-28 04:43:35,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35 WrapperNode [2019-12-28 04:43:35,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 04:43:35,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 04:43:35,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 04:43:35,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 04:43:35,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35" (1/1) ... [2019-12-28 04:43:35,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35" (1/1) ... [2019-12-28 04:43:35,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 04:43:35,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 04:43:35,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 04:43:35,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 04:43:35,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35" (1/1) ... [2019-12-28 04:43:35,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35" (1/1) ... [2019-12-28 04:43:35,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35" (1/1) ... [2019-12-28 04:43:35,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35" (1/1) ... [2019-12-28 04:43:35,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35" (1/1) ... [2019-12-28 04:43:35,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35" (1/1) ... [2019-12-28 04:43:35,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35" (1/1) ... [2019-12-28 04:43:35,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 04:43:35,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 04:43:35,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 04:43:35,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 04:43:35,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35" (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 [2019-12-28 04:43:35,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 04:43:35,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 04:43:35,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 04:43:35,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 04:43:35,901 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 04:43:35,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 04:43:35,902 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 04:43:35,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 04:43:35,902 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 04:43:35,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 04:43:35,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 04:43:35,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 04:43:35,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 04:43:35,904 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 04:43:36,288 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 04:43:36,289 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 04:43:36,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:43:36 BoogieIcfgContainer [2019-12-28 04:43:36,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 04:43:36,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 04:43:36,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 04:43:36,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 04:43:36,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:43:35" (1/3) ... [2019-12-28 04:43:36,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9b68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:43:36, skipping insertion in model container [2019-12-28 04:43:36,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:43:35" (2/3) ... [2019-12-28 04:43:36,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9b68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:43:36, skipping insertion in model container [2019-12-28 04:43:36,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:43:36" (3/3) ... [2019-12-28 04:43:36,300 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2019-12-28 04:43:36,309 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 04:43:36,310 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 04:43:36,317 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 04:43:36,318 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 04:43:36,349 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,349 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,349 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,350 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,350 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,350 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,351 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,351 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,351 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,352 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,352 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,352 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,353 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,353 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,353 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,354 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,354 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,355 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,360 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,360 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,361 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,361 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,364 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,364 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,365 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,365 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,367 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,368 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,368 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,368 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:43:36,385 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 04:43:36,403 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 04:43:36,403 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 04:43:36,403 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 04:43:36,403 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 04:43:36,403 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 04:43:36,404 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 04:43:36,404 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 04:43:36,404 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 04:43:36,414 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-28 04:43:36,503 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-28 04:43:36,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-28 04:43:36,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-28 04:43:36,537 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:43:36,538 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] [2019-12-28 04:43:36,541 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:43:36,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:43:36,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1402148942, now seen corresponding path program 1 times [2019-12-28 04:43:36,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:43:36,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804278773] [2019-12-28 04:43:36,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:43:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:43:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:43:36,975 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804278773] [2019-12-28 04:43:36,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:43:36,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 04:43:36,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [703783493] [2019-12-28 04:43:36,979 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:43:36,990 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:43:37,022 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 31 states and 30 transitions. [2019-12-28 04:43:37,023 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:43:37,029 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:43:37,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 04:43:37,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:43:37,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 04:43:37,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 04:43:37,068 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-28 04:43:37,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:43:37,159 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-28 04:43:37,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 04:43:37,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-28 04:43:37,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:43:37,189 INFO L225 Difference]: With dead ends: 1294 [2019-12-28 04:43:37,189 INFO L226 Difference]: Without dead ends: 600 [2019-12-28 04:43:37,193 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 [2019-12-28 04:43:37,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-28 04:43:37,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-28 04:43:37,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-28 04:43:37,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-28 04:43:37,306 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-28 04:43:37,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:43:37,307 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-28 04:43:37,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 04:43:37,307 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-28 04:43:37,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 04:43:37,310 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:43:37,310 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] [2019-12-28 04:43:37,310 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:43:37,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:43:37,311 INFO L82 PathProgramCache]: Analyzing trace with hash -191362068, now seen corresponding path program 1 times [2019-12-28 04:43:37,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:43:37,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038933693] [2019-12-28 04:43:37,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:43:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:43:37,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:43:37,428 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038933693] [2019-12-28 04:43:37,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:43:37,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 04:43:37,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1435852630] [2019-12-28 04:43:37,429 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:43:37,433 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:43:37,439 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 40 states and 47 transitions. [2019-12-28 04:43:37,439 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:43:37,442 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-28 04:43:37,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 04:43:37,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:43:37,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 04:43:37,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:43:37,444 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-28 04:43:37,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:43:37,521 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-28 04:43:37,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:43:37,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-28 04:43:37,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:43:37,527 INFO L225 Difference]: With dead ends: 600 [2019-12-28 04:43:37,527 INFO L226 Difference]: Without dead ends: 537 [2019-12-28 04:43:37,528 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:43:37,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-28 04:43:37,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-28 04:43:37,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-28 04:43:37,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-28 04:43:37,552 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-28 04:43:37,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:43:37,553 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-28 04:43:37,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 04:43:37,553 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-28 04:43:37,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 04:43:37,555 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:43:37,555 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] [2019-12-28 04:43:37,556 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:43:37,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:43:37,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1139876538, now seen corresponding path program 1 times [2019-12-28 04:43:37,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:43:37,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607589046] [2019-12-28 04:43:37,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:43:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:43:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:43:37,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607589046] [2019-12-28 04:43:37,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:43:37,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 04:43:37,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1305126106] [2019-12-28 04:43:37,701 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:43:37,704 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:43:37,710 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 41 states and 48 transitions. [2019-12-28 04:43:37,710 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:43:37,711 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-28 04:43:37,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 04:43:37,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:43:37,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 04:43:37,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 04:43:37,712 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-28 04:43:37,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:43:37,803 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-28 04:43:37,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:43:37,804 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-28 04:43:37,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:43:37,806 INFO L225 Difference]: With dead ends: 402 [2019-12-28 04:43:37,806 INFO L226 Difference]: Without dead ends: 348 [2019-12-28 04:43:37,807 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-28 04:43:37,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-28 04:43:37,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-28 04:43:37,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-28 04:43:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-28 04:43:37,818 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-28 04:43:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:43:37,819 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-28 04:43:37,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 04:43:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-28 04:43:37,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 04:43:37,821 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:43:37,821 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] [2019-12-28 04:43:37,821 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:43:37,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:43:37,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1474863345, now seen corresponding path program 1 times [2019-12-28 04:43:37,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:43:37,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654713201] [2019-12-28 04:43:37,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:43:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:43:38,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:43:38,032 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654713201] [2019-12-28 04:43:38,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:43:38,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 04:43:38,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [57307874] [2019-12-28 04:43:38,034 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:43:38,041 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:43:38,051 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 42 states and 49 transitions. [2019-12-28 04:43:38,051 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:43:38,052 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:43:38,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 04:43:38,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:43:38,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 04:43:38,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:43:38,053 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 7 states. [2019-12-28 04:43:38,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:43:38,329 INFO L93 Difference]: Finished difference Result 726 states and 1958 transitions. [2019-12-28 04:43:38,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-28 04:43:38,330 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-28 04:43:38,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:43:38,332 INFO L225 Difference]: With dead ends: 726 [2019-12-28 04:43:38,332 INFO L226 Difference]: Without dead ends: 252 [2019-12-28 04:43:38,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2019-12-28 04:43:38,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-12-28 04:43:38,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2019-12-28 04:43:38,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-12-28 04:43:38,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 671 transitions. [2019-12-28 04:43:38,342 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 671 transitions. Word has length 33 [2019-12-28 04:43:38,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:43:38,342 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 671 transitions. [2019-12-28 04:43:38,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 04:43:38,343 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 671 transitions. [2019-12-28 04:43:38,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 04:43:38,344 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:43:38,344 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] [2019-12-28 04:43:38,344 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:43:38,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:43:38,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1216436527, now seen corresponding path program 2 times [2019-12-28 04:43:38,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:43:38,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822475143] [2019-12-28 04:43:38,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:43:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:43:38,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:43:38,500 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822475143] [2019-12-28 04:43:38,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:43:38,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 04:43:38,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1267762282] [2019-12-28 04:43:38,501 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:43:38,505 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:43:38,512 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 34 states and 33 transitions. [2019-12-28 04:43:38,516 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:43:38,518 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:43:38,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 04:43:38,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:43:38,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 04:43:38,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:43:38,527 INFO L87 Difference]: Start difference. First operand 252 states and 671 transitions. Second operand 7 states. [2019-12-28 04:43:38,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:43:38,618 INFO L93 Difference]: Finished difference Result 198 states and 509 transitions. [2019-12-28 04:43:38,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:43:38,618 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-28 04:43:38,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:43:38,619 INFO L225 Difference]: With dead ends: 198 [2019-12-28 04:43:38,619 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 04:43:38,619 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-28 04:43:38,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 04:43:38,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 04:43:38,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 04:43:38,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 04:43:38,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-28 04:43:38,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:43:38,620 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 04:43:38,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 04:43:38,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 04:43:38,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 04:43:38,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 04:43:38 BasicIcfg [2019-12-28 04:43:38,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 04:43:38,629 INFO L168 Benchmark]: Toolchain (without parser) took 3610.55 ms. Allocated memory was 145.8 MB in the beginning and 246.9 MB in the end (delta: 101.2 MB). Free memory was 102.1 MB in the beginning and 160.4 MB in the end (delta: -58.4 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. [2019-12-28 04:43:38,631 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 145.8 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-28 04:43:38,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.84 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.7 MB in the beginning and 157.8 MB in the end (delta: -56.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-28 04:43:38,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.64 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 155.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-28 04:43:38,640 INFO L168 Benchmark]: Boogie Preprocessor took 28.28 ms. Allocated memory is still 202.9 MB. Free memory was 155.9 MB in the beginning and 153.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-28 04:43:38,641 INFO L168 Benchmark]: RCFGBuilder took 457.41 ms. Allocated memory is still 202.9 MB. Free memory was 153.9 MB in the beginning and 133.9 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-28 04:43:38,642 INFO L168 Benchmark]: TraceAbstraction took 2334.18 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 132.9 MB in the beginning and 160.4 MB in the end (delta: -27.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-12-28 04:43:38,654 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 145.8 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.84 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.7 MB in the beginning and 157.8 MB in the end (delta: -56.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.64 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 155.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.28 ms. Allocated memory is still 202.9 MB. Free memory was 155.9 MB in the beginning and 153.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 457.41 ms. Allocated memory is still 202.9 MB. Free memory was 153.9 MB in the beginning and 133.9 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2334.18 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 132.9 MB in the beginning and 160.4 MB in the end (delta: -27.5 MB). Peak memory consumption was 16.5 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 225 SDtfs, 321 SDslu, 567 SDs, 0 SdLazy, 94 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 13786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...