/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/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:08:03,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:08:03,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:08:03,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:08:03,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:08:03,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:08:03,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:08:03,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:08:03,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:08:03,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:08:03,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:08:03,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:08:03,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:08:03,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:08:03,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:08:03,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:08:03,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:08:03,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:08:03,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:08:03,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:08:03,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:08:03,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:08:03,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:08:03,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:08:03,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 04:08:03,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 04:08:03,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 04:08:03,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 04:08:03,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 04:08:03,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 04:08:03,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:08:03,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:08:03,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:08:03,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:08:03,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:08:03,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:08:03,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:08:03,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:08:03,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:08:03,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:08:03,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:08:03,700 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 04:08:03,732 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:08:03,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:08:03,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:08:03,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:08:03,734 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:08:03,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:08:03,735 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:08:03,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:08:03,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:08:03,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:08:03,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:08:03,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:08:03,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:08:03,736 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:08:03,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:08:03,736 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:08:03,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:08:03,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:08:03,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:08:03,737 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:08:03,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:08:03,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:08:03,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:08:03,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:08:03,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:08:03,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:08:03,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:08:03,738 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:08:03,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:08:03,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:08:04,029 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:08:04,040 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:08:04,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:08:04,045 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:08:04,046 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:08:04,047 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2019-12-19 04:08:04,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ede93ce/ff7a7866f1494a1fa4150d99c41b7bba/FLAG73fa94020 [2019-12-19 04:08:04,650 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:08:04,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2019-12-19 04:08:04,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ede93ce/ff7a7866f1494a1fa4150d99c41b7bba/FLAG73fa94020 [2019-12-19 04:08:04,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ede93ce/ff7a7866f1494a1fa4150d99c41b7bba [2019-12-19 04:08:04,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:08:04,940 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:08:04,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:08:04,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:08:04,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:08:04,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:08:04" (1/1) ... [2019-12-19 04:08:04,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6157dc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:04, skipping insertion in model container [2019-12-19 04:08:04,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:08:04" (1/1) ... [2019-12-19 04:08:04,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:08:05,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:08:05,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:08:05,593 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:08:05,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:08:05,737 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:08:05,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05 WrapperNode [2019-12-19 04:08:05,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:08:05,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:08:05,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:08:05,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:08:05,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05" (1/1) ... [2019-12-19 04:08:05,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05" (1/1) ... [2019-12-19 04:08:05,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:08:05,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:08:05,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:08:05,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:08:05,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05" (1/1) ... [2019-12-19 04:08:05,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05" (1/1) ... [2019-12-19 04:08:05,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05" (1/1) ... [2019-12-19 04:08:05,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05" (1/1) ... [2019-12-19 04:08:05,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05" (1/1) ... [2019-12-19 04:08:05,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05" (1/1) ... [2019-12-19 04:08:05,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05" (1/1) ... [2019-12-19 04:08:05,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:08:05,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:08:05,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:08:05,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:08:05,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05" (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 04:08:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:08:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:08:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:08:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:08:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:08:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:08:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:08:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:08:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:08:05,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:08:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:08:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:08:05,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:08:05,876 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 04:08:06,222 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:08:06,222 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:08:06,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:08:06 BoogieIcfgContainer [2019-12-19 04:08:06,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:08:06,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:08:06,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:08:06,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:08:06,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:08:04" (1/3) ... [2019-12-19 04:08:06,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fef5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:08:06, skipping insertion in model container [2019-12-19 04:08:06,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:05" (2/3) ... [2019-12-19 04:08:06,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fef5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:08:06, skipping insertion in model container [2019-12-19 04:08:06,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:08:06" (3/3) ... [2019-12-19 04:08:06,232 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2019-12-19 04:08:06,243 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:08:06,244 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:08:06,251 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:08:06,252 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:08:06,284 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,285 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,285 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,286 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,286 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,286 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,287 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,287 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,287 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,287 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,288 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,288 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,288 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,289 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,289 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,289 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,289 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,290 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,294 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,294 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,294 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,295 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,303 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,303 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,303 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,304 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,306 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,306 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,306 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,306 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:06,325 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:08:06,341 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:08:06,341 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:08:06,341 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:08:06,341 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:08:06,342 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:08:06,342 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:08:06,342 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:08:06,342 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:08:06,354 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 04:08:06,444 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 04:08:06,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 04:08:06,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:08:06,473 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:08:06,474 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 04:08:06,474 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:08:06,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:08:06,482 INFO L82 PathProgramCache]: Analyzing trace with hash -83504505, now seen corresponding path program 1 times [2019-12-19 04:08:06,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:08:06,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416852302] [2019-12-19 04:08:06,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:08:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:08:06,912 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 04:08:06,913 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416852302] [2019-12-19 04:08:06,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:08:06,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:08:06,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366442251] [2019-12-19 04:08:06,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:08:06,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:08:06,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:08:06,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:08:06,935 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 04:08:07,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:08:07,058 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 04:08:07,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:08:07,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 04:08:07,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:08:07,085 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 04:08:07,085 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 04:08:07,087 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:08:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 04:08:07,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 04:08:07,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 04:08:07,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 04:08:07,192 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 04:08:07,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:08:07,193 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 04:08:07,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:08:07,193 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 04:08:07,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:08:07,196 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:08:07,197 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 04:08:07,197 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:08:07,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:08:07,198 INFO L82 PathProgramCache]: Analyzing trace with hash 288299186, now seen corresponding path program 1 times [2019-12-19 04:08:07,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:08:07,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789175934] [2019-12-19 04:08:07,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:08:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:08:07,349 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 04:08:07,350 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789175934] [2019-12-19 04:08:07,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:08:07,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:08:07,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668230874] [2019-12-19 04:08:07,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:08:07,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:08:07,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:08:07,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:08:07,354 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 04:08:07,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:08:07,431 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 04:08:07,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:08:07,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 04:08:07,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:08:07,438 INFO L225 Difference]: With dead ends: 601 [2019-12-19 04:08:07,439 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 04:08:07,440 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 04:08:07,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 04:08:07,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 04:08:07,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 04:08:07,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 04:08:07,496 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 04:08:07,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:08:07,496 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 04:08:07,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:08:07,497 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 04:08:07,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:08:07,500 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:08:07,500 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 04:08:07,500 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:08:07,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:08:07,501 INFO L82 PathProgramCache]: Analyzing trace with hash -2025800424, now seen corresponding path program 1 times [2019-12-19 04:08:07,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:08:07,501 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361963778] [2019-12-19 04:08:07,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:08:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:08:07,661 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 04:08:07,662 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361963778] [2019-12-19 04:08:07,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:08:07,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:08:07,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275073992] [2019-12-19 04:08:07,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:08:07,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:08:07,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:08:07,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:08:07,664 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 04:08:07,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:08:07,773 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 04:08:07,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:08:07,773 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:08:07,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:08:07,777 INFO L225 Difference]: With dead ends: 403 [2019-12-19 04:08:07,777 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 04:08:07,778 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 04:08:07,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 04:08:07,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 04:08:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 04:08:07,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 04:08:07,794 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 04:08:07,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:08:07,795 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 04:08:07,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:08:07,795 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 04:08:07,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:08:07,796 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:08:07,797 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:08:07,797 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:08:07,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:08:07,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1679595576, now seen corresponding path program 1 times [2019-12-19 04:08:07,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:08:07,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058545528] [2019-12-19 04:08:07,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:08:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:08:08,022 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 04:08:08,023 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058545528] [2019-12-19 04:08:08,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:08:08,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:08:08,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871700923] [2019-12-19 04:08:08,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:08:08,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:08:08,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:08:08,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:08:08,026 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-12-19 04:08:08,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:08:08,261 INFO L93 Difference]: Finished difference Result 718 states and 1938 transitions. [2019-12-19 04:08:08,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-19 04:08:08,261 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:08:08,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:08:08,264 INFO L225 Difference]: With dead ends: 718 [2019-12-19 04:08:08,264 INFO L226 Difference]: Without dead ends: 313 [2019-12-19 04:08:08,265 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:08:08,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-19 04:08:08,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-19 04:08:08,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-19 04:08:08,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-19 04:08:08,276 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-19 04:08:08,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:08:08,276 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-19 04:08:08,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:08:08,277 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-19 04:08:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:08:08,278 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:08:08,278 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:08:08,278 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:08:08,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:08:08,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1476702554, now seen corresponding path program 2 times [2019-12-19 04:08:08,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:08:08,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786254232] [2019-12-19 04:08:08,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:08:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:08:08,407 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 04:08:08,407 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786254232] [2019-12-19 04:08:08,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:08:08,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:08:08,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530445866] [2019-12-19 04:08:08,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:08:08,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:08:08,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:08:08,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:08:08,409 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 8 states. [2019-12-19 04:08:08,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:08:08,505 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-19 04:08:08,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:08:08,505 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:08:08,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:08:08,506 INFO L225 Difference]: With dead ends: 259 [2019-12-19 04:08:08,506 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:08:08,506 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:08:08,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:08:08,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:08:08,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:08:08,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:08:08,509 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 04:08:08,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:08:08,510 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:08:08,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:08:08,510 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:08:08,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:08:08,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:08:08 BasicIcfg [2019-12-19 04:08:08,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:08:08,524 INFO L168 Benchmark]: Toolchain (without parser) took 3583.15 ms. Allocated memory was 148.4 MB in the beginning and 244.3 MB in the end (delta: 95.9 MB). Free memory was 104.8 MB in the beginning and 168.0 MB in the end (delta: -63.2 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-12-19 04:08:08,526 INFO L168 Benchmark]: CDTParser took 1.32 ms. Allocated memory is still 148.4 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-19 04:08:08,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.79 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 104.4 MB in the beginning and 162.0 MB in the end (delta: -57.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:08:08,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 160.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:08:08,539 INFO L168 Benchmark]: Boogie Preprocessor took 27.22 ms. Allocated memory is still 205.0 MB. Free memory was 160.0 MB in the beginning and 158.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-12-19 04:08:08,541 INFO L168 Benchmark]: RCFGBuilder took 406.61 ms. Allocated memory is still 205.0 MB. Free memory was 158.2 MB in the beginning and 138.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:08:08,542 INFO L168 Benchmark]: TraceAbstraction took 2295.10 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 137.5 MB in the beginning and 168.0 MB in the end (delta: -30.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-12-19 04:08:08,550 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.32 ms. Allocated memory is still 148.4 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.79 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 104.4 MB in the beginning and 162.0 MB in the end (delta: -57.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 160.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.22 ms. Allocated memory is still 205.0 MB. Free memory was 160.0 MB in the beginning and 158.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 406.61 ms. Allocated memory is still 205.0 MB. Free memory was 158.2 MB in the beginning and 138.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2295.10 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 137.5 MB in the beginning and 168.0 MB in the end (delta: -30.5 MB). Peak memory consumption was 8.8 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 224 SDtfs, 368 SDslu, 589 SDs, 0 SdLazy, 89 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 16491 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...