/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 04:51:06,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 04:51:06,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 04:51:06,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 04:51:06,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 04:51:06,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 04:51:06,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 04:51:06,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 04:51:06,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 04:51:06,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 04:51:06,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 04:51:06,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 04:51:06,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 04:51:06,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 04:51:06,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 04:51:06,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 04:51:06,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 04:51:06,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 04:51:06,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 04:51:06,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 04:51:06,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 04:51:06,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 04:51:06,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 04:51:06,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 04:51:06,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 04:51:06,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 04:51:06,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 04:51:06,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 04:51:06,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 04:51:06,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 04:51:06,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 04:51:06,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 04:51:06,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 04:51:06,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 04:51:06,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 04:51:06,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 04:51:06,666 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2019-12-28 04:51:06,680 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 04:51:06,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 04:51:06,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 04:51:06,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 04:51:06,682 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 04:51:06,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 04:51:06,682 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 04:51:06,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 04:51:06,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 04:51:06,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 04:51:06,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 04:51:06,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 04:51:06,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 04:51:06,684 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 04:51:06,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 04:51:06,684 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 04:51:06,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 04:51:06,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 04:51:06,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 04:51:06,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 04:51:06,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 04:51:06,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:51:06,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 04:51:06,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 04:51:06,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 04:51:06,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 04:51:06,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 04:51:06,687 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 04:51:06,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 04:51:06,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 04:51:06,687 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 04:51:06,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 04:51:06,950 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 04:51:06,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 04:51:06,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 04:51:06,968 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 04:51:06,968 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 04:51:06,969 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2019-12-28 04:51:07,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2f1f6f81/59097500f3ee46e2a8e8370412acdcc1/FLAGa98e94deb [2019-12-28 04:51:07,576 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 04:51:07,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2019-12-28 04:51:07,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2f1f6f81/59097500f3ee46e2a8e8370412acdcc1/FLAGa98e94deb [2019-12-28 04:51:07,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2f1f6f81/59097500f3ee46e2a8e8370412acdcc1 [2019-12-28 04:51:07,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 04:51:07,893 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 04:51:07,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 04:51:07,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 04:51:07,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 04:51:07,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:51:07" (1/1) ... [2019-12-28 04:51:07,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52190dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:07, skipping insertion in model container [2019-12-28 04:51:07,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:51:07" (1/1) ... [2019-12-28 04:51:07,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 04:51:07,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 04:51:08,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:51:08,528 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 04:51:08,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:51:08,679 INFO L208 MainTranslator]: Completed translation [2019-12-28 04:51:08,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08 WrapperNode [2019-12-28 04:51:08,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 04:51:08,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 04:51:08,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 04:51:08,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 04:51:08,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08" (1/1) ... [2019-12-28 04:51:08,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08" (1/1) ... [2019-12-28 04:51:08,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 04:51:08,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 04:51:08,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 04:51:08,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 04:51:08,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08" (1/1) ... [2019-12-28 04:51:08,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08" (1/1) ... [2019-12-28 04:51:08,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08" (1/1) ... [2019-12-28 04:51:08,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08" (1/1) ... [2019-12-28 04:51:08,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08" (1/1) ... [2019-12-28 04:51:08,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08" (1/1) ... [2019-12-28 04:51:08,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08" (1/1) ... [2019-12-28 04:51:08,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 04:51:08,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 04:51:08,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 04:51:08,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 04:51:08,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:51:08,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 04:51:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 04:51:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 04:51:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 04:51:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 04:51:08,826 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 04:51:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 04:51:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 04:51:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 04:51:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 04:51:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-28 04:51:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-28 04:51:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 04:51:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 04:51:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 04:51:08,829 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 04:51:09,198 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 04:51:09,199 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 04:51:09,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:51:09 BoogieIcfgContainer [2019-12-28 04:51:09,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 04:51:09,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 04:51:09,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 04:51:09,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 04:51:09,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:51:07" (1/3) ... [2019-12-28 04:51:09,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410f78b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:51:09, skipping insertion in model container [2019-12-28 04:51:09,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:51:08" (2/3) ... [2019-12-28 04:51:09,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410f78b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:51:09, skipping insertion in model container [2019-12-28 04:51:09,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:51:09" (3/3) ... [2019-12-28 04:51:09,209 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2019-12-28 04:51:09,219 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 04:51:09,219 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 04:51:09,225 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 04:51:09,226 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 04:51:09,265 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,267 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,267 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,267 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,268 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,268 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,269 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,270 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,270 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,270 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,270 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,271 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,271 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,271 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,272 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,272 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,273 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,273 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,273 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,274 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,275 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,276 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,276 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,276 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,282 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,283 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,283 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,283 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,289 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,290 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,290 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,291 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,293 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,293 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,293 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,294 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,299 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,299 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,299 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,299 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:51:09,314 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-28 04:51:09,334 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 04:51:09,335 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 04:51:09,335 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 04:51:09,335 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 04:51:09,335 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 04:51:09,335 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 04:51:09,336 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 04:51:09,336 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 04:51:09,346 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 64 transitions [2019-12-28 04:51:09,668 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5472 states. [2019-12-28 04:51:09,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5472 states. [2019-12-28 04:51:09,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-28 04:51:09,695 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:51:09,696 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, 1] [2019-12-28 04:51:09,696 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:51:09,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:51:09,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1087170205, now seen corresponding path program 1 times [2019-12-28 04:51:09,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:51:09,715 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418309222] [2019-12-28 04:51:09,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:51:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:51:10,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:51:10,119 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418309222] [2019-12-28 04:51:10,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:51:10,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 04:51:10,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1957139042] [2019-12-28 04:51:10,123 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:51:10,134 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:51:10,162 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 36 states and 35 transitions. [2019-12-28 04:51:10,163 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:51:10,168 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:51:10,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 04:51:10,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:51:10,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 04:51:10,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 04:51:10,188 INFO L87 Difference]: Start difference. First operand 5472 states. Second operand 4 states. [2019-12-28 04:51:10,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:51:10,330 INFO L93 Difference]: Finished difference Result 5709 states and 21934 transitions. [2019-12-28 04:51:10,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 04:51:10,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-12-28 04:51:10,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:51:10,374 INFO L225 Difference]: With dead ends: 5709 [2019-12-28 04:51:10,374 INFO L226 Difference]: Without dead ends: 2393 [2019-12-28 04:51:10,376 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:51:10,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2019-12-28 04:51:10,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2393. [2019-12-28 04:51:10,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2393 states. [2019-12-28 04:51:10,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 8937 transitions. [2019-12-28 04:51:10,607 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 8937 transitions. Word has length 35 [2019-12-28 04:51:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:51:10,609 INFO L462 AbstractCegarLoop]: Abstraction has 2393 states and 8937 transitions. [2019-12-28 04:51:10,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 04:51:10,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 8937 transitions. [2019-12-28 04:51:10,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-28 04:51:10,616 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:51:10,616 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, 1, 1] [2019-12-28 04:51:10,617 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:51:10,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:51:10,622 INFO L82 PathProgramCache]: Analyzing trace with hash 458963065, now seen corresponding path program 1 times [2019-12-28 04:51:10,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:51:10,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084065321] [2019-12-28 04:51:10,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:51:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:51:10,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:51:10,909 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084065321] [2019-12-28 04:51:10,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:51:10,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 04:51:10,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [21503509] [2019-12-28 04:51:10,911 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:51:10,917 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:51:10,930 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 49 states and 60 transitions. [2019-12-28 04:51:10,930 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:51:10,934 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:51:10,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 04:51:10,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:51:10,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 04:51:10,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:51:10,938 INFO L87 Difference]: Start difference. First operand 2393 states and 8937 transitions. Second operand 5 states. [2019-12-28 04:51:11,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:51:11,053 INFO L93 Difference]: Finished difference Result 2564 states and 9321 transitions. [2019-12-28 04:51:11,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:51:11,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-12-28 04:51:11,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:51:11,077 INFO L225 Difference]: With dead ends: 2564 [2019-12-28 04:51:11,077 INFO L226 Difference]: Without dead ends: 2309 [2019-12-28 04:51:11,078 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 [2019-12-28 04:51:11,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2019-12-28 04:51:11,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2309. [2019-12-28 04:51:11,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2309 states. [2019-12-28 04:51:11,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 8545 transitions. [2019-12-28 04:51:11,178 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 8545 transitions. Word has length 36 [2019-12-28 04:51:11,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:51:11,178 INFO L462 AbstractCegarLoop]: Abstraction has 2309 states and 8545 transitions. [2019-12-28 04:51:11,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 04:51:11,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 8545 transitions. [2019-12-28 04:51:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-28 04:51:11,184 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:51:11,184 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, 1, 1, 1] [2019-12-28 04:51:11,185 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:51:11,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:51:11,185 INFO L82 PathProgramCache]: Analyzing trace with hash -355667930, now seen corresponding path program 1 times [2019-12-28 04:51:11,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:51:11,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544861684] [2019-12-28 04:51:11,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:51:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:51:11,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:51:11,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544861684] [2019-12-28 04:51:11,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:51:11,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 04:51:11,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [150203625] [2019-12-28 04:51:11,291 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:51:11,299 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:51:11,309 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 58 states and 77 transitions. [2019-12-28 04:51:11,309 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:51:11,310 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:51:11,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 04:51:11,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:51:11,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 04:51:11,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 04:51:11,311 INFO L87 Difference]: Start difference. First operand 2309 states and 8545 transitions. Second operand 6 states. [2019-12-28 04:51:11,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:51:11,424 INFO L93 Difference]: Finished difference Result 2174 states and 7681 transitions. [2019-12-28 04:51:11,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:51:11,425 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-12-28 04:51:11,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:51:11,440 INFO L225 Difference]: With dead ends: 2174 [2019-12-28 04:51:11,440 INFO L226 Difference]: Without dead ends: 1931 [2019-12-28 04:51:11,442 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 [2019-12-28 04:51:11,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2019-12-28 04:51:11,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1931. [2019-12-28 04:51:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1931 states. [2019-12-28 04:51:11,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 6907 transitions. [2019-12-28 04:51:11,550 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 6907 transitions. Word has length 37 [2019-12-28 04:51:11,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:51:11,551 INFO L462 AbstractCegarLoop]: Abstraction has 1931 states and 6907 transitions. [2019-12-28 04:51:11,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 04:51:11,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 6907 transitions. [2019-12-28 04:51:11,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-28 04:51:11,556 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:51:11,556 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, 1, 1, 1, 1] [2019-12-28 04:51:11,556 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:51:11,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:51:11,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1985653842, now seen corresponding path program 1 times [2019-12-28 04:51:11,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:51:11,558 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074763784] [2019-12-28 04:51:11,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:51:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:51:11,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:51:11,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074763784] [2019-12-28 04:51:11,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:51:11,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 04:51:11,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1310625353] [2019-12-28 04:51:11,678 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:51:11,682 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:51:11,692 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 63 states and 86 transitions. [2019-12-28 04:51:11,692 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:51:11,758 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 04:51:11,758 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 04:51:11,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:51:11,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 04:51:11,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:51:11,759 INFO L87 Difference]: Start difference. First operand 1931 states and 6907 transitions. Second operand 8 states. [2019-12-28 04:51:11,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:51:11,905 INFO L93 Difference]: Finished difference Result 1364 states and 4531 transitions. [2019-12-28 04:51:11,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 04:51:11,906 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2019-12-28 04:51:11,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:51:11,915 INFO L225 Difference]: With dead ends: 1364 [2019-12-28 04:51:11,915 INFO L226 Difference]: Without dead ends: 1175 [2019-12-28 04:51:11,916 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2019-12-28 04:51:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2019-12-28 04:51:11,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2019-12-28 04:51:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2019-12-28 04:51:11,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 3883 transitions. [2019-12-28 04:51:11,959 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 3883 transitions. Word has length 38 [2019-12-28 04:51:11,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:51:11,959 INFO L462 AbstractCegarLoop]: Abstraction has 1175 states and 3883 transitions. [2019-12-28 04:51:11,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 04:51:11,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 3883 transitions. [2019-12-28 04:51:11,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-28 04:51:11,963 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:51:11,963 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, 1, 1, 1, 1, 1] [2019-12-28 04:51:11,964 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:51:11,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:51:11,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1809318845, now seen corresponding path program 1 times [2019-12-28 04:51:11,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:51:11,965 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401641151] [2019-12-28 04:51:11,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:51:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:51:12,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:51:12,140 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401641151] [2019-12-28 04:51:12,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:51:12,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:51:12,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1157479464] [2019-12-28 04:51:12,141 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:51:12,146 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:51:12,157 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 64 states and 87 transitions. [2019-12-28 04:51:12,157 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:51:12,159 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:51:12,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 04:51:12,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:51:12,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 04:51:12,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:51:12,160 INFO L87 Difference]: Start difference. First operand 1175 states and 3883 transitions. Second operand 8 states. [2019-12-28 04:51:12,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:51:12,413 INFO L93 Difference]: Finished difference Result 2417 states and 8113 transitions. [2019-12-28 04:51:12,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-28 04:51:12,414 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-12-28 04:51:12,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:51:12,422 INFO L225 Difference]: With dead ends: 2417 [2019-12-28 04:51:12,423 INFO L226 Difference]: Without dead ends: 1019 [2019-12-28 04:51:12,423 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-12-28 04:51:12,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2019-12-28 04:51:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2019-12-28 04:51:12,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2019-12-28 04:51:12,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 3379 transitions. [2019-12-28 04:51:12,453 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 3379 transitions. Word has length 39 [2019-12-28 04:51:12,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:51:12,453 INFO L462 AbstractCegarLoop]: Abstraction has 1019 states and 3379 transitions. [2019-12-28 04:51:12,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 04:51:12,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 3379 transitions. [2019-12-28 04:51:12,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-28 04:51:12,456 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:51:12,457 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, 1, 1, 1, 1, 1] [2019-12-28 04:51:12,457 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:51:12,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:51:12,457 INFO L82 PathProgramCache]: Analyzing trace with hash 996548435, now seen corresponding path program 2 times [2019-12-28 04:51:12,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:51:12,458 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586586803] [2019-12-28 04:51:12,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:51:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:51:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:51:12,596 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586586803] [2019-12-28 04:51:12,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:51:12,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:51:12,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [109047450] [2019-12-28 04:51:12,600 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:51:12,606 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:51:12,616 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 56 states and 71 transitions. [2019-12-28 04:51:12,616 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:51:12,692 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2019-12-28 04:51:12,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-28 04:51:12,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:51:12,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-28 04:51:12,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-28 04:51:12,693 INFO L87 Difference]: Start difference. First operand 1019 states and 3379 transitions. Second operand 10 states. [2019-12-28 04:51:12,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:51:12,933 INFO L93 Difference]: Finished difference Result 2081 states and 7054 transitions. [2019-12-28 04:51:12,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-28 04:51:12,934 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2019-12-28 04:51:12,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:51:12,942 INFO L225 Difference]: With dead ends: 2081 [2019-12-28 04:51:12,942 INFO L226 Difference]: Without dead ends: 827 [2019-12-28 04:51:12,942 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2019-12-28 04:51:12,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2019-12-28 04:51:12,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 827. [2019-12-28 04:51:12,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-12-28 04:51:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 2731 transitions. [2019-12-28 04:51:12,969 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 2731 transitions. Word has length 39 [2019-12-28 04:51:12,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:51:12,970 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 2731 transitions. [2019-12-28 04:51:12,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-28 04:51:12,970 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 2731 transitions. [2019-12-28 04:51:12,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-28 04:51:12,973 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:51:12,973 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, 1, 1, 1, 1, 1] [2019-12-28 04:51:12,974 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:51:12,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:51:12,974 INFO L82 PathProgramCache]: Analyzing trace with hash -891063675, now seen corresponding path program 3 times [2019-12-28 04:51:12,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:51:12,975 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745117138] [2019-12-28 04:51:12,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:51:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:51:13,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:51:13,133 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745117138] [2019-12-28 04:51:13,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:51:13,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 04:51:13,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [753170526] [2019-12-28 04:51:13,134 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:51:13,139 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:51:13,148 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 52 states and 63 transitions. [2019-12-28 04:51:13,148 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:51:13,150 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:51:13,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 04:51:13,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:51:13,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 04:51:13,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:51:13,152 INFO L87 Difference]: Start difference. First operand 827 states and 2731 transitions. Second operand 7 states. [2019-12-28 04:51:13,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:51:13,257 INFO L93 Difference]: Finished difference Result 1313 states and 4432 transitions. [2019-12-28 04:51:13,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:51:13,257 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-28 04:51:13,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:51:13,263 INFO L225 Difference]: With dead ends: 1313 [2019-12-28 04:51:13,263 INFO L226 Difference]: Without dead ends: 728 [2019-12-28 04:51:13,263 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 [2019-12-28 04:51:13,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2019-12-28 04:51:13,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 728. [2019-12-28 04:51:13,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2019-12-28 04:51:13,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 2455 transitions. [2019-12-28 04:51:13,292 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 2455 transitions. Word has length 39 [2019-12-28 04:51:13,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:51:13,293 INFO L462 AbstractCegarLoop]: Abstraction has 728 states and 2455 transitions. [2019-12-28 04:51:13,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 04:51:13,293 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 2455 transitions. [2019-12-28 04:51:13,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-28 04:51:13,296 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:51:13,296 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, 1, 1, 1, 1, 1] [2019-12-28 04:51:13,296 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:51:13,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:51:13,297 INFO L82 PathProgramCache]: Analyzing trace with hash -527167331, now seen corresponding path program 4 times [2019-12-28 04:51:13,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:51:13,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703539429] [2019-12-28 04:51:13,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:51:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:51:13,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:51:13,511 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703539429] [2019-12-28 04:51:13,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:51:13,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 04:51:13,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1202263184] [2019-12-28 04:51:13,514 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:51:13,519 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:51:13,534 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 44 states and 47 transitions. [2019-12-28 04:51:13,534 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:51:13,576 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 04:51:13,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 04:51:13,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:51:13,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 04:51:13,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:51:13,578 INFO L87 Difference]: Start difference. First operand 728 states and 2455 transitions. Second operand 8 states. [2019-12-28 04:51:13,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:51:13,690 INFO L93 Difference]: Finished difference Result 566 states and 1861 transitions. [2019-12-28 04:51:13,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:51:13,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-12-28 04:51:13,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:51:13,691 INFO L225 Difference]: With dead ends: 566 [2019-12-28 04:51:13,691 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 04:51:13,692 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-28 04:51:13,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 04:51:13,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 04:51:13,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 04:51:13,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 04:51:13,693 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2019-12-28 04:51:13,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:51:13,694 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 04:51:13,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 04:51:13,694 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 04:51:13,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 04:51:13,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 04:51:13 BasicIcfg [2019-12-28 04:51:13,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 04:51:13,706 INFO L168 Benchmark]: Toolchain (without parser) took 5811.68 ms. Allocated memory was 144.7 MB in the beginning and 314.0 MB in the end (delta: 169.3 MB). Free memory was 100.8 MB in the beginning and 222.2 MB in the end (delta: -121.3 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. [2019-12-28 04:51:13,706 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-28 04:51:13,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.89 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 100.4 MB in the beginning and 155.5 MB in the end (delta: -55.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-28 04:51:13,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.30 ms. Allocated memory is still 201.3 MB. Free memory was 155.5 MB in the beginning and 153.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 04:51:13,709 INFO L168 Benchmark]: Boogie Preprocessor took 28.50 ms. Allocated memory is still 201.3 MB. Free memory was 153.5 MB in the beginning and 151.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 04:51:13,710 INFO L168 Benchmark]: RCFGBuilder took 442.84 ms. Allocated memory is still 201.3 MB. Free memory was 151.6 MB in the beginning and 129.2 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-12-28 04:51:13,712 INFO L168 Benchmark]: TraceAbstraction took 4500.68 ms. Allocated memory was 201.3 MB in the beginning and 314.0 MB in the end (delta: 112.7 MB). Free memory was 129.2 MB in the beginning and 222.2 MB in the end (delta: -92.9 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2019-12-28 04:51:13,720 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 783.89 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 100.4 MB in the beginning and 155.5 MB in the end (delta: -55.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.30 ms. Allocated memory is still 201.3 MB. Free memory was 155.5 MB in the beginning and 153.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.50 ms. Allocated memory is still 201.3 MB. Free memory was 153.5 MB in the beginning and 151.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 442.84 ms. Allocated memory is still 201.3 MB. Free memory was 151.6 MB in the beginning and 129.2 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4500.68 ms. Allocated memory was 201.3 MB in the beginning and 314.0 MB in the end (delta: 112.7 MB). Free memory was 129.2 MB in the beginning and 222.2 MB in the end (delta: -92.9 MB). Peak memory consumption was 19.8 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 5 procedures, 64 locations, 1 error locations. Result: SAFE, OverallTime: 4.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 517 SDtfs, 849 SDslu, 1511 SDs, 0 SdLazy, 221 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5472occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 302 NumberOfCodeBlocks, 302 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 31634 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...