/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/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:12:42,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:12:42,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:12:42,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:12:42,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:12:42,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:12:42,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:12:42,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:12:42,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:12:42,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:12:42,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:12:42,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:12:42,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:12:42,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:12:42,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:12:42,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:12:42,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:12:42,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:12:42,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:12:42,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:12:42,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:12:42,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:12:42,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:12:42,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:12:42,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:12:42,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:12:42,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:12:42,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:12:42,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:12:42,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:12:42,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:12:42,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:12:42,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:12:42,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:12:42,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:12:42,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:12:42,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 04:12:42,806 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:12:42,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:12:42,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:12:42,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:12:42,808 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:12:42,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:12:42,809 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:12:42,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:12:42,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:12:42,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:12:42,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:12:42,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:12:42,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:12:42,810 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:12:42,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:12:42,810 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:12:42,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:12:42,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:12:42,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:12:42,811 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:12:42,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:12:42,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:12:42,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:12:42,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:12:42,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:12:42,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:12:42,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:12:42,813 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:12:42,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:12:42,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:12:43,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:12:43,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:12:43,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:12:43,118 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:12:43,119 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:12:43,120 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2019-12-19 04:12:43,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46390e6d/08e872616ec448aaa973eaf5b24edd70/FLAGa0458da03 [2019-12-19 04:12:43,755 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:12:43,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2019-12-19 04:12:43,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46390e6d/08e872616ec448aaa973eaf5b24edd70/FLAGa0458da03 [2019-12-19 04:12:44,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46390e6d/08e872616ec448aaa973eaf5b24edd70 [2019-12-19 04:12:44,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:12:44,018 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:12:44,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:12:44,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:12:44,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:12:44,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:12:44" (1/1) ... [2019-12-19 04:12:44,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ccd342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44, skipping insertion in model container [2019-12-19 04:12:44,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:12:44" (1/1) ... [2019-12-19 04:12:44,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:12:44,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:12:44,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:12:44,551 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:12:44,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:12:44,715 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:12:44,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44 WrapperNode [2019-12-19 04:12:44,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:12:44,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:12:44,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:12:44,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:12:44,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44" (1/1) ... [2019-12-19 04:12:44,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44" (1/1) ... [2019-12-19 04:12:44,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:12:44,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:12:44,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:12:44,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:12:44,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44" (1/1) ... [2019-12-19 04:12:44,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44" (1/1) ... [2019-12-19 04:12:44,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44" (1/1) ... [2019-12-19 04:12:44,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44" (1/1) ... [2019-12-19 04:12:44,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44" (1/1) ... [2019-12-19 04:12:44,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44" (1/1) ... [2019-12-19 04:12:44,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44" (1/1) ... [2019-12-19 04:12:44,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:12:44,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:12:44,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:12:44,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:12:44,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:12:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:12:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:12:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:12:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:12:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:12:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:12:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:12:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:12:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:12:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:12:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:12:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:12:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:12:44,854 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:12:45,239 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:12:45,240 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:12:45,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:12:45 BoogieIcfgContainer [2019-12-19 04:12:45,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:12:45,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:12:45,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:12:45,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:12:45,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:12:44" (1/3) ... [2019-12-19 04:12:45,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b5eb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:12:45, skipping insertion in model container [2019-12-19 04:12:45,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:44" (2/3) ... [2019-12-19 04:12:45,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b5eb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:12:45, skipping insertion in model container [2019-12-19 04:12:45,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:12:45" (3/3) ... [2019-12-19 04:12:45,250 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2019-12-19 04:12:45,263 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:12:45,264 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:12:45,276 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:12:45,278 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:12:45,304 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,304 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,304 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,305 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,306 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,306 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,307 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,307 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,307 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,307 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,308 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,308 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,308 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,309 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,309 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,309 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,309 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,310 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,314 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,314 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,315 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,315 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,320 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,321 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,321 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,322 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,324 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,324 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,325 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,325 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:45,342 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:12:45,359 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:12:45,359 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:12:45,359 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:12:45,360 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:12:45,360 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:12:45,360 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:12:45,360 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:12:45,360 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:12:45,372 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 04:12:45,458 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 04:12:45,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 04:12:45,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:12:45,488 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:45,489 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:12:45,489 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:45,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:45,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1961534642, now seen corresponding path program 1 times [2019-12-19 04:12:45,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:45,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155821397] [2019-12-19 04:12:45,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:45,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155821397] [2019-12-19 04:12:45,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:45,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:12:45,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122695708] [2019-12-19 04:12:45,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:12:45,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:45,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:12:45,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:12:45,910 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 04:12:46,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:46,034 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 04:12:46,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:12:46,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 04:12:46,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:46,065 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 04:12:46,065 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 04:12:46,067 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:12:46,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 04:12:46,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 04:12:46,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 04:12:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 04:12:46,206 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 04:12:46,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:46,207 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 04:12:46,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:12:46,208 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 04:12:46,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:12:46,211 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:46,211 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:12:46,211 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:46,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:46,212 INFO L82 PathProgramCache]: Analyzing trace with hash 848017682, now seen corresponding path program 1 times [2019-12-19 04:12:46,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:46,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442655146] [2019-12-19 04:12:46,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:46,354 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442655146] [2019-12-19 04:12:46,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:46,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:12:46,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673088749] [2019-12-19 04:12:46,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:12:46,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:46,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:12:46,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:12:46,358 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 04:12:46,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:46,438 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 04:12:46,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:12:46,439 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 04:12:46,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:46,445 INFO L225 Difference]: With dead ends: 600 [2019-12-19 04:12:46,445 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 04:12:46,446 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:12:46,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 04:12:46,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 04:12:46,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 04:12:46,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 04:12:46,479 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 04:12:46,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:46,480 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 04:12:46,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:12:46,480 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 04:12:46,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:12:46,483 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:46,483 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:12:46,483 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:46,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:46,483 INFO L82 PathProgramCache]: Analyzing trace with hash 177866388, now seen corresponding path program 1 times [2019-12-19 04:12:46,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:46,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842272605] [2019-12-19 04:12:46,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:46,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:46,654 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842272605] [2019-12-19 04:12:46,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:46,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:12:46,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429283584] [2019-12-19 04:12:46,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:12:46,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:46,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:12:46,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:12:46,656 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 04:12:46,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:46,757 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 04:12:46,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:12:46,757 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 04:12:46,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:46,761 INFO L225 Difference]: With dead ends: 402 [2019-12-19 04:12:46,761 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 04:12:46,761 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:12:46,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 04:12:46,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 04:12:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 04:12:46,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 04:12:46,779 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 04:12:46,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:46,779 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 04:12:46,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:12:46,779 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 04:12:46,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:12:46,782 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:46,783 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:12:46,783 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:46,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:46,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1811476463, now seen corresponding path program 1 times [2019-12-19 04:12:46,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:46,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168417154] [2019-12-19 04:12:46,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:47,000 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168417154] [2019-12-19 04:12:47,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:47,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:12:47,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129009759] [2019-12-19 04:12:47,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:12:47,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:47,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:12:47,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:12:47,003 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 6 states. [2019-12-19 04:12:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:47,137 INFO L93 Difference]: Finished difference Result 528 states and 1415 transitions. [2019-12-19 04:12:47,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:12:47,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:12:47,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:47,141 INFO L225 Difference]: With dead ends: 528 [2019-12-19 04:12:47,142 INFO L226 Difference]: Without dead ends: 327 [2019-12-19 04:12:47,142 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:12:47,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-12-19 04:12:47,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2019-12-19 04:12:47,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2019-12-19 04:12:47,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 857 transitions. [2019-12-19 04:12:47,158 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 857 transitions. Word has length 33 [2019-12-19 04:12:47,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:47,159 INFO L462 AbstractCegarLoop]: Abstraction has 327 states and 857 transitions. [2019-12-19 04:12:47,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:12:47,159 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 857 transitions. [2019-12-19 04:12:47,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:12:47,161 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:47,161 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:12:47,161 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:47,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:47,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1498342187, now seen corresponding path program 2 times [2019-12-19 04:12:47,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:47,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122865610] [2019-12-19 04:12:47,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:47,295 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122865610] [2019-12-19 04:12:47,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:47,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:12:47,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923070290] [2019-12-19 04:12:47,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:12:47,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:47,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:12:47,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:12:47,299 INFO L87 Difference]: Start difference. First operand 327 states and 857 transitions. Second operand 7 states. [2019-12-19 04:12:47,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:47,461 INFO L93 Difference]: Finished difference Result 534 states and 1421 transitions. [2019-12-19 04:12:47,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:12:47,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:12:47,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:47,465 INFO L225 Difference]: With dead ends: 534 [2019-12-19 04:12:47,465 INFO L226 Difference]: Without dead ends: 300 [2019-12-19 04:12:47,465 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:12:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-12-19 04:12:47,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2019-12-19 04:12:47,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-12-19 04:12:47,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 791 transitions. [2019-12-19 04:12:47,476 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 791 transitions. Word has length 33 [2019-12-19 04:12:47,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:47,476 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 791 transitions. [2019-12-19 04:12:47,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:12:47,477 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 791 transitions. [2019-12-19 04:12:47,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:12:47,478 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:47,478 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:12:47,478 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:47,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:47,479 INFO L82 PathProgramCache]: Analyzing trace with hash -960486609, now seen corresponding path program 3 times [2019-12-19 04:12:47,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:47,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300766794] [2019-12-19 04:12:47,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:47,592 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300766794] [2019-12-19 04:12:47,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:47,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:12:47,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683702211] [2019-12-19 04:12:47,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:12:47,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:47,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:12:47,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:12:47,594 INFO L87 Difference]: Start difference. First operand 300 states and 791 transitions. Second operand 7 states. [2019-12-19 04:12:47,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:47,676 INFO L93 Difference]: Finished difference Result 246 states and 629 transitions. [2019-12-19 04:12:47,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:12:47,677 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:12:47,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:47,677 INFO L225 Difference]: With dead ends: 246 [2019-12-19 04:12:47,677 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:12:47,678 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-19 04:12:47,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:12:47,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:12:47,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:12:47,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:12:47,679 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 04:12:47,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:47,679 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:12:47,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:12:47,679 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:12:47,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:12:47,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:12:47 BasicIcfg [2019-12-19 04:12:47,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:12:47,688 INFO L168 Benchmark]: Toolchain (without parser) took 3669.32 ms. Allocated memory was 137.4 MB in the beginning and 253.2 MB in the end (delta: 115.9 MB). Free memory was 100.7 MB in the beginning and 180.4 MB in the end (delta: -79.7 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:47,689 INFO L168 Benchmark]: CDTParser took 1.51 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-19 04:12:47,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.26 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 158.8 MB in the end (delta: -58.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:47,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.29 ms. Allocated memory is still 201.9 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:47,691 INFO L168 Benchmark]: Boogie Preprocessor took 25.67 ms. Allocated memory is still 201.9 MB. Free memory was 156.8 MB in the beginning and 155.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:47,692 INFO L168 Benchmark]: RCFGBuilder took 448.79 ms. Allocated memory is still 201.9 MB. Free memory was 155.4 MB in the beginning and 135.1 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:47,693 INFO L168 Benchmark]: TraceAbstraction took 2441.88 ms. Allocated memory was 201.9 MB in the beginning and 253.2 MB in the end (delta: 51.4 MB). Free memory was 134.4 MB in the beginning and 180.4 MB in the end (delta: -46.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:47,697 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.26 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 158.8 MB in the end (delta: -58.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.29 ms. Allocated memory is still 201.9 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.67 ms. Allocated memory is still 201.9 MB. Free memory was 156.8 MB in the beginning and 155.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.79 ms. Allocated memory is still 201.9 MB. Free memory was 155.4 MB in the beginning and 135.1 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2441.88 ms. Allocated memory was 201.9 MB in the beginning and 253.2 MB in the end (delta: 51.4 MB). Free memory was 134.4 MB in the beginning and 180.4 MB in the end (delta: -46.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 279 SDtfs, 358 SDslu, 681 SDs, 0 SdLazy, 106 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 16794 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...