/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/safe018_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 13:57:41,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 13:57:41,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 13:57:41,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 13:57:41,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 13:57:41,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 13:57:41,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 13:57:41,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 13:57:41,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 13:57:41,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 13:57:41,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 13:57:41,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 13:57:41,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 13:57:41,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 13:57:41,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 13:57:41,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 13:57:41,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 13:57:41,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 13:57:41,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 13:57:41,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 13:57:41,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 13:57:41,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 13:57:41,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 13:57:41,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 13:57:41,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 13:57:41,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 13:57:41,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 13:57:41,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 13:57:41,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 13:57:41,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 13:57:41,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 13:57:41,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 13:57:41,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 13:57:41,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 13:57:41,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 13:57:41,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 13:57:41,752 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 [2019-12-27 13:57:41,766 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 13:57:41,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 13:57:41,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 13:57:41,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 13:57:41,768 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 13:57:41,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 13:57:41,768 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 13:57:41,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 13:57:41,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 13:57:41,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 13:57:41,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 13:57:41,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 13:57:41,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 13:57:41,770 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 13:57:41,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 13:57:41,770 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 13:57:41,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 13:57:41,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 13:57:41,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 13:57:41,771 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 13:57:41,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 13:57:41,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 13:57:41,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 13:57:41,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 13:57:41,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 13:57:41,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 13:57:41,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 13:57:41,773 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 13:57:41,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 13:57:41,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 13:57:42,051 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 13:57:42,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 13:57:42,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 13:57:42,068 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 13:57:42,069 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 13:57:42,069 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2019-12-27 13:57:42,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21a43b624/7f3bcef8a60f47c3b8fd38d1cd063f58/FLAG9a9892a7c [2019-12-27 13:57:42,660 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 13:57:42,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2019-12-27 13:57:42,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21a43b624/7f3bcef8a60f47c3b8fd38d1cd063f58/FLAG9a9892a7c [2019-12-27 13:57:42,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21a43b624/7f3bcef8a60f47c3b8fd38d1cd063f58 [2019-12-27 13:57:42,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 13:57:42,915 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 13:57:42,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 13:57:42,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 13:57:42,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 13:57:42,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:57:42" (1/1) ... [2019-12-27 13:57:42,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794cb051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:42, skipping insertion in model container [2019-12-27 13:57:42,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:57:42" (1/1) ... [2019-12-27 13:57:42,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 13:57:42,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 13:57:43,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:57:43,486 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 13:57:43,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:57:43,619 INFO L208 MainTranslator]: Completed translation [2019-12-27 13:57:43,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43 WrapperNode [2019-12-27 13:57:43,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 13:57:43,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 13:57:43,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 13:57:43,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 13:57:43,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43" (1/1) ... [2019-12-27 13:57:43,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43" (1/1) ... [2019-12-27 13:57:43,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 13:57:43,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 13:57:43,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 13:57:43,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 13:57:43,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43" (1/1) ... [2019-12-27 13:57:43,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43" (1/1) ... [2019-12-27 13:57:43,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43" (1/1) ... [2019-12-27 13:57:43,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43" (1/1) ... [2019-12-27 13:57:43,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43" (1/1) ... [2019-12-27 13:57:43,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43" (1/1) ... [2019-12-27 13:57:43,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43" (1/1) ... [2019-12-27 13:57:43,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 13:57:43,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 13:57:43,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 13:57:43,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 13:57:43,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43" (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 [2019-12-27 13:57:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 13:57:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 13:57:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 13:57:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 13:57:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 13:57:43,789 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 13:57:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 13:57:43,790 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 13:57:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 13:57:43,791 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 13:57:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 13:57:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 13:57:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 13:57:43,794 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 13:57:44,227 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 13:57:44,228 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 13:57:44,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:57:44 BoogieIcfgContainer [2019-12-27 13:57:44,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 13:57:44,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 13:57:44,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 13:57:44,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 13:57:44,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 01:57:42" (1/3) ... [2019-12-27 13:57:44,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfd68d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:57:44, skipping insertion in model container [2019-12-27 13:57:44,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:43" (2/3) ... [2019-12-27 13:57:44,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfd68d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:57:44, skipping insertion in model container [2019-12-27 13:57:44,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:57:44" (3/3) ... [2019-12-27 13:57:44,238 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_tso.oepc.i [2019-12-27 13:57:44,249 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 13:57:44,250 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 13:57:44,257 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 13:57:44,258 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 13:57:44,287 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,288 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,288 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,288 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,289 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,289 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,290 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,290 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,290 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,290 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,291 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,293 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,293 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,294 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,294 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,294 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,295 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,295 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,299 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,300 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,300 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,300 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,306 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,306 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,306 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,307 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,309 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,310 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,310 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,310 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:44,327 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 13:57:44,350 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 13:57:44,350 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 13:57:44,350 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 13:57:44,351 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 13:57:44,351 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 13:57:44,351 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 13:57:44,351 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 13:57:44,351 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 13:57:44,363 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-27 13:57:44,453 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-27 13:57:44,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-27 13:57:44,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 13:57:44,483 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:44,484 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] [2019-12-27 13:57:44,485 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:44,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:44,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1559723610, now seen corresponding path program 1 times [2019-12-27 13:57:44,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:44,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168052358] [2019-12-27 13:57:44,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:44,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:44,932 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168052358] [2019-12-27 13:57:44,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:44,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 13:57:44,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468972218] [2019-12-27 13:57:44,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 13:57:44,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:44,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 13:57:44,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 13:57:44,959 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-27 13:57:45,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:45,105 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-27 13:57:45,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 13:57:45,107 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-27 13:57:45,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:45,137 INFO L225 Difference]: With dead ends: 1295 [2019-12-27 13:57:45,138 INFO L226 Difference]: Without dead ends: 601 [2019-12-27 13:57:45,141 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 [2019-12-27 13:57:45,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-27 13:57:45,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-27 13:57:45,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-27 13:57:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-27 13:57:45,247 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-27 13:57:45,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:45,247 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-27 13:57:45,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 13:57:45,248 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-27 13:57:45,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 13:57:45,250 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:45,251 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] [2019-12-27 13:57:45,251 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:45,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:45,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1171273147, now seen corresponding path program 1 times [2019-12-27 13:57:45,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:45,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68979387] [2019-12-27 13:57:45,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:45,456 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68979387] [2019-12-27 13:57:45,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:45,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 13:57:45,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591236854] [2019-12-27 13:57:45,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 13:57:45,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:45,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 13:57:45,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 13:57:45,460 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-27 13:57:45,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:45,625 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-27 13:57:45,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 13:57:45,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-27 13:57:45,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:45,631 INFO L225 Difference]: With dead ends: 601 [2019-12-27 13:57:45,632 INFO L226 Difference]: Without dead ends: 538 [2019-12-27 13:57:45,633 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:57:45,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-27 13:57:45,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-27 13:57:45,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-27 13:57:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-27 13:57:45,662 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-27 13:57:45,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:45,662 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-27 13:57:45,663 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 13:57:45,663 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-27 13:57:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 13:57:45,665 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:45,665 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] [2019-12-27 13:57:45,665 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:45,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1777429343, now seen corresponding path program 1 times [2019-12-27 13:57:45,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:45,666 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106495588] [2019-12-27 13:57:45,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:45,797 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106495588] [2019-12-27 13:57:45,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:45,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 13:57:45,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564777453] [2019-12-27 13:57:45,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 13:57:45,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:45,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 13:57:45,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 13:57:45,799 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-27 13:57:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:45,898 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-27 13:57:45,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:57:45,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-27 13:57:45,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:45,901 INFO L225 Difference]: With dead ends: 403 [2019-12-27 13:57:45,902 INFO L226 Difference]: Without dead ends: 349 [2019-12-27 13:57:45,902 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 [2019-12-27 13:57:45,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-27 13:57:45,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-27 13:57:45,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-27 13:57:45,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-27 13:57:45,916 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-27 13:57:45,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:45,916 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-27 13:57:45,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 13:57:45,917 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-27 13:57:45,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:57:45,918 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:45,918 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] [2019-12-27 13:57:45,919 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:45,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:45,919 INFO L82 PathProgramCache]: Analyzing trace with hash -960362357, now seen corresponding path program 1 times [2019-12-27 13:57:45,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:45,920 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101442385] [2019-12-27 13:57:45,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:46,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101442385] [2019-12-27 13:57:46,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:46,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 13:57:46,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893852473] [2019-12-27 13:57:46,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 13:57:46,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:46,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 13:57:46,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:57:46,100 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-27 13:57:46,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:46,268 INFO L93 Difference]: Finished difference Result 556 states and 1479 transitions. [2019-12-27 13:57:46,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 13:57:46,269 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-27 13:57:46,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:46,272 INFO L225 Difference]: With dead ends: 556 [2019-12-27 13:57:46,272 INFO L226 Difference]: Without dead ends: 385 [2019-12-27 13:57:46,273 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 13:57:46,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2019-12-27 13:57:46,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 340. [2019-12-27 13:57:46,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-12-27 13:57:46,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 888 transitions. [2019-12-27 13:57:46,287 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 888 transitions. Word has length 34 [2019-12-27 13:57:46,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:46,287 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 888 transitions. [2019-12-27 13:57:46,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 13:57:46,288 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 888 transitions. [2019-12-27 13:57:46,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:57:46,289 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:46,289 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] [2019-12-27 13:57:46,289 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:46,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:46,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1133610049, now seen corresponding path program 2 times [2019-12-27 13:57:46,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:46,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269729502] [2019-12-27 13:57:46,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:46,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:46,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269729502] [2019-12-27 13:57:46,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:46,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:57:46,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198295156] [2019-12-27 13:57:46,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:57:46,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:46,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:57:46,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:57:46,460 INFO L87 Difference]: Start difference. First operand 340 states and 888 transitions. Second operand 8 states. [2019-12-27 13:57:46,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:46,586 INFO L93 Difference]: Finished difference Result 511 states and 1368 transitions. [2019-12-27 13:57:46,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:57:46,588 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 13:57:46,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:46,592 INFO L225 Difference]: With dead ends: 511 [2019-12-27 13:57:46,592 INFO L226 Difference]: Without dead ends: 253 [2019-12-27 13:57:46,593 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-27 13:57:46,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-12-27 13:57:46,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-12-27 13:57:46,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-12-27 13:57:46,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-12-27 13:57:46,601 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-12-27 13:57:46,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:46,602 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-12-27 13:57:46,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:57:46,602 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-12-27 13:57:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:57:46,603 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:46,604 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] [2019-12-27 13:57:46,608 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:46,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:46,609 INFO L82 PathProgramCache]: Analyzing trace with hash -908726199, now seen corresponding path program 3 times [2019-12-27 13:57:46,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:46,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738421714] [2019-12-27 13:57:46,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:46,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738421714] [2019-12-27 13:57:46,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:46,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:57:46,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444319703] [2019-12-27 13:57:46,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:57:46,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:46,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:57:46,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:57:46,813 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-12-27 13:57:46,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:46,922 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-12-27 13:57:46,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 13:57:46,923 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 13:57:46,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:46,924 INFO L225 Difference]: With dead ends: 199 [2019-12-27 13:57:46,924 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 13:57:46,925 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-27 13:57:46,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 13:57:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 13:57:46,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 13:57:46,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 13:57:46,926 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-27 13:57:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:46,926 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 13:57:46,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:57:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 13:57:46,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 13:57:46,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 01:57:46 BasicIcfg [2019-12-27 13:57:46,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 13:57:46,943 INFO L168 Benchmark]: Toolchain (without parser) took 4024.36 ms. Allocated memory was 140.0 MB in the beginning and 246.4 MB in the end (delta: 106.4 MB). Free memory was 103.2 MB in the beginning and 149.1 MB in the end (delta: -45.9 MB). Peak memory consumption was 60.6 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:46,944 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 13:57:46,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.04 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 103.2 MB in the beginning and 159.6 MB in the end (delta: -56.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:46,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.63 ms. Allocated memory is still 204.5 MB. Free memory was 159.6 MB in the beginning and 157.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:46,952 INFO L168 Benchmark]: Boogie Preprocessor took 29.68 ms. Allocated memory is still 204.5 MB. Free memory was 157.6 MB in the beginning and 155.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:46,953 INFO L168 Benchmark]: RCFGBuilder took 522.89 ms. Allocated memory is still 204.5 MB. Free memory was 155.7 MB in the beginning and 135.9 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:46,954 INFO L168 Benchmark]: TraceAbstraction took 2706.87 ms. Allocated memory was 204.5 MB in the beginning and 246.4 MB in the end (delta: 41.9 MB). Free memory was 135.0 MB in the beginning and 149.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:46,968 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.04 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 103.2 MB in the beginning and 159.6 MB in the end (delta: -56.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.63 ms. Allocated memory is still 204.5 MB. Free memory was 159.6 MB in the beginning and 157.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.68 ms. Allocated memory is still 204.5 MB. Free memory was 157.6 MB in the beginning and 155.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 522.89 ms. Allocated memory is still 204.5 MB. Free memory was 155.7 MB in the beginning and 135.9 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2706.87 ms. Allocated memory was 204.5 MB in the beginning and 246.4 MB in the end (delta: 41.9 MB). Free memory was 135.0 MB in the beginning and 149.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 27.8 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: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 288 SDtfs, 393 SDslu, 777 SDs, 0 SdLazy, 120 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s 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, 6 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 19626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...