/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/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:17:49,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:17:49,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:17:49,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:17:49,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:17:49,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:17:49,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:17:49,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:17:49,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:17:49,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:17:49,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:17:49,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:17:49,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:17:49,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:17:49,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:17:49,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:17:49,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:17:49,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:17:49,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:17:49,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:17:49,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:17:49,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:17:49,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:17:49,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:17:49,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 04:17:49,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 04:17:49,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 04:17:49,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 04:17:49,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 04:17:49,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 04:17:49,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:17:49,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:17:49,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:17:49,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:17:49,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:17:49,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:17:49,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:17:49,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:17:49,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:17:49,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:17:49,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:17:49,796 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 04:17:49,822 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:17:49,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:17:49,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:17:49,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:17:49,824 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:17:49,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:17:49,825 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:17:49,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:17:49,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:17:49,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:17:49,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:17:49,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:17:49,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:17:49,827 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:17:49,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:17:49,828 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:17:49,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:17:49,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:17:49,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:17:49,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:17:49,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:17:49,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:17:49,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:17:49,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:17:49,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:17:49,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:17:49,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:17:49,830 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:17:49,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:17:49,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:17:50,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:17:50,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:17:50,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:17:50,194 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:17:50,194 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:17:50,195 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2019-12-19 04:17:50,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0abd5f155/84a16fd62d80452e857cd0f49ef19085/FLAG02d6917c2 [2019-12-19 04:17:50,806 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:17:50,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2019-12-19 04:17:50,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0abd5f155/84a16fd62d80452e857cd0f49ef19085/FLAG02d6917c2 [2019-12-19 04:17:51,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0abd5f155/84a16fd62d80452e857cd0f49ef19085 [2019-12-19 04:17:51,121 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:17:51,123 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:17:51,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:17:51,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:17:51,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:17:51,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:17:51" (1/1) ... [2019-12-19 04:17:51,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f6d8e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51, skipping insertion in model container [2019-12-19 04:17:51,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:17:51" (1/1) ... [2019-12-19 04:17:51,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:17:51,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:17:51,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:17:51,670 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:17:51,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:17:51,803 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:17:51,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51 WrapperNode [2019-12-19 04:17:51,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:17:51,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:17:51,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:17:51,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:17:51,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51" (1/1) ... [2019-12-19 04:17:51,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51" (1/1) ... [2019-12-19 04:17:51,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:17:51,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:17:51,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:17:51,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:17:51,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51" (1/1) ... [2019-12-19 04:17:51,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51" (1/1) ... [2019-12-19 04:17:51,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51" (1/1) ... [2019-12-19 04:17:51,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51" (1/1) ... [2019-12-19 04:17:51,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51" (1/1) ... [2019-12-19 04:17:51,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51" (1/1) ... [2019-12-19 04:17:51,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51" (1/1) ... [2019-12-19 04:17:51,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:17:51,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:17:51,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:17:51,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:17:51,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51" (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 04:17:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:17:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:17:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:17:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:17:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:17:51,941 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:17:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:17:51,941 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:17:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:17:51,941 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:17:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:17:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:17:51,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:17:51,944 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 04:17:52,305 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:17:52,305 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:17:52,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:17:52 BoogieIcfgContainer [2019-12-19 04:17:52,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:17:52,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:17:52,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:17:52,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:17:52,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:17:51" (1/3) ... [2019-12-19 04:17:52,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d63edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:17:52, skipping insertion in model container [2019-12-19 04:17:52,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:17:51" (2/3) ... [2019-12-19 04:17:52,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d63edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:17:52, skipping insertion in model container [2019-12-19 04:17:52,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:17:52" (3/3) ... [2019-12-19 04:17:52,315 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2019-12-19 04:17:52,325 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:17:52,325 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:17:52,332 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:17:52,333 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:17:52,361 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,362 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,362 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,363 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,363 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,363 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,364 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,364 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,365 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,365 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,366 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,366 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,367 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,367 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,371 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,371 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,372 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,372 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,378 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,378 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,379 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,379 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,382 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,382 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,382 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,382 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:17:52,401 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:17:52,423 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:17:52,423 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:17:52,423 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:17:52,423 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:17:52,423 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:17:52,423 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:17:52,424 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:17:52,424 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:17:52,435 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 04:17:52,527 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 04:17:52,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 04:17:52,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:17:52,560 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:17:52,563 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 04:17:52,563 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:17:52,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:17:52,570 INFO L82 PathProgramCache]: Analyzing trace with hash -83504505, now seen corresponding path program 1 times [2019-12-19 04:17:52,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:17:52,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324175942] [2019-12-19 04:17:52,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:17:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:17:52,990 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 04:17:52,991 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324175942] [2019-12-19 04:17:52,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:17:52,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:17:52,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380572979] [2019-12-19 04:17:52,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:17:52,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:17:53,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:17:53,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:17:53,018 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 04:17:53,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:17:53,130 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 04:17:53,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:17:53,133 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 04:17:53,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:17:53,163 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 04:17:53,163 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 04:17:53,166 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:17:53,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 04:17:53,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 04:17:53,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 04:17:53,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 04:17:53,320 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 04:17:53,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:17:53,321 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 04:17:53,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:17:53,321 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 04:17:53,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:17:53,324 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:17:53,324 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 04:17:53,324 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:17:53,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:17:53,325 INFO L82 PathProgramCache]: Analyzing trace with hash 288299186, now seen corresponding path program 1 times [2019-12-19 04:17:53,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:17:53,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165708032] [2019-12-19 04:17:53,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:17:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:17:53,512 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 04:17:53,513 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165708032] [2019-12-19 04:17:53,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:17:53,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:17:53,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668872852] [2019-12-19 04:17:53,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:17:53,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:17:53,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:17:53,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:17:53,516 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 04:17:53,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:17:53,590 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 04:17:53,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:17:53,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 04:17:53,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:17:53,596 INFO L225 Difference]: With dead ends: 601 [2019-12-19 04:17:53,596 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 04:17:53,597 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 04:17:53,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 04:17:53,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 04:17:53,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 04:17:53,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 04:17:53,620 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 04:17:53,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:17:53,621 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 04:17:53,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:17:53,621 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 04:17:53,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:17:53,623 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:17:53,623 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 04:17:53,623 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:17:53,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:17:53,624 INFO L82 PathProgramCache]: Analyzing trace with hash -2025800424, now seen corresponding path program 1 times [2019-12-19 04:17:53,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:17:53,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101706754] [2019-12-19 04:17:53,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:17:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:17:53,768 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 04:17:53,769 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101706754] [2019-12-19 04:17:53,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:17:53,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:17:53,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439718013] [2019-12-19 04:17:53,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:17:53,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:17:53,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:17:53,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:17:53,771 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 04:17:53,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:17:53,875 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 04:17:53,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:17:53,875 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:17:53,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:17:53,878 INFO L225 Difference]: With dead ends: 403 [2019-12-19 04:17:53,878 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 04:17:53,879 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 04:17:53,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 04:17:53,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 04:17:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 04:17:53,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 04:17:53,890 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 04:17:53,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:17:53,891 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 04:17:53,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:17:53,891 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 04:17:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:17:53,893 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:17:53,893 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 04:17:53,893 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:17:53,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:17:53,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1679595576, now seen corresponding path program 1 times [2019-12-19 04:17:53,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:17:53,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115562237] [2019-12-19 04:17:53,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:17:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:17:54,104 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 04:17:54,104 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115562237] [2019-12-19 04:17:54,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:17:54,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:17:54,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570691106] [2019-12-19 04:17:54,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:17:54,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:17:54,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:17:54,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:17:54,107 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-12-19 04:17:54,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:17:54,357 INFO L93 Difference]: Finished difference Result 502 states and 1317 transitions. [2019-12-19 04:17:54,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-19 04:17:54,358 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:17:54,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:17:54,359 INFO L225 Difference]: With dead ends: 502 [2019-12-19 04:17:54,359 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:17:54,361 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 04:17:54,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:17:54,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:17:54,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:17:54,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:17:54,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 04:17:54,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:17:54,363 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:17:54,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:17:54,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:17:54,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:17:54,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:17:54 BasicIcfg [2019-12-19 04:17:54,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:17:54,374 INFO L168 Benchmark]: Toolchain (without parser) took 3249.81 ms. Allocated memory was 137.4 MB in the beginning and 233.3 MB in the end (delta: 95.9 MB). Free memory was 100.2 MB in the beginning and 88.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 107.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:17:54,376 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-19 04:17:54,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.52 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 100.0 MB in the beginning and 159.2 MB in the end (delta: -59.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:17:54,379 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.74 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:17:54,385 INFO L168 Benchmark]: Boogie Preprocessor took 26.82 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:17:54,386 INFO L168 Benchmark]: RCFGBuilder took 430.64 ms. Allocated memory is still 202.4 MB. Free memory was 155.8 MB in the beginning and 135.4 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:17:54,388 INFO L168 Benchmark]: TraceAbstraction took 2062.15 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 134.8 MB in the beginning and 88.6 MB in the end (delta: 46.2 MB). Peak memory consumption was 77.2 MB. Max. memory is 7.1 GB. [2019-12-19 04:17:54,401 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.52 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 100.0 MB in the beginning and 159.2 MB in the end (delta: -59.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.74 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.82 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 430.64 ms. Allocated memory is still 202.4 MB. Free memory was 155.8 MB in the beginning and 135.4 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2062.15 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 134.8 MB in the beginning and 88.6 MB in the end (delta: 46.2 MB). Peak memory consumption was 77.2 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: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 170 SDtfs, 308 SDslu, 400 SDs, 0 SdLazy, 64 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 12234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...