/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:41:22,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:41:22,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:41:22,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:41:22,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:41:22,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:41:22,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:41:22,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:41:22,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:41:22,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:41:22,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:41:22,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:41:22,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:41:22,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:41:22,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:41:22,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:41:22,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:41:22,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:41:22,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:41:22,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:41:22,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:41:22,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:41:22,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:41:22,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:41:22,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 14:41:22,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:41:22,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:41:22,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:41:22,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:41:22,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:41:22,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:41:22,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:41:22,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:41:22,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:41:22,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:41:22,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:41:22,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 14:41:22,240 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:41:22,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:41:22,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:41:22,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:41:22,246 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:41:22,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:41:22,246 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:41:22,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:41:22,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:41:22,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:41:22,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:41:22,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:41:22,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:41:22,247 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:41:22,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:41:22,248 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:41:22,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:41:22,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:41:22,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:41:22,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:41:22,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:41:22,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:41:22,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:41:22,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:41:22,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:41:22,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:41:22,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:41:22,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:41:22,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:41:22,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:41:22,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:41:22,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:41:22,554 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:41:22,555 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:41:22,556 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:41:22,556 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2019-12-18 14:41:22,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3885bd3f9/a818a84b9bc04dab9f8180f473c3f802/FLAGb55f502b5 [2019-12-18 14:41:23,129 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:41:23,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2019-12-18 14:41:23,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3885bd3f9/a818a84b9bc04dab9f8180f473c3f802/FLAGb55f502b5 [2019-12-18 14:41:23,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3885bd3f9/a818a84b9bc04dab9f8180f473c3f802 [2019-12-18 14:41:23,466 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:41:23,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:41:23,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:41:23,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:41:23,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:41:23,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:41:23" (1/1) ... [2019-12-18 14:41:23,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c56e361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:23, skipping insertion in model container [2019-12-18 14:41:23,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:41:23" (1/1) ... [2019-12-18 14:41:23,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:41:23,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:41:24,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:41:24,113 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:41:24,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:41:24,238 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:41:24,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24 WrapperNode [2019-12-18 14:41:24,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:41:24,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:41:24,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:41:24,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:41:24,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24" (1/1) ... [2019-12-18 14:41:24,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24" (1/1) ... [2019-12-18 14:41:24,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:41:24,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:41:24,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:41:24,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:41:24,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24" (1/1) ... [2019-12-18 14:41:24,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24" (1/1) ... [2019-12-18 14:41:24,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24" (1/1) ... [2019-12-18 14:41:24,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24" (1/1) ... [2019-12-18 14:41:24,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24" (1/1) ... [2019-12-18 14:41:24,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24" (1/1) ... [2019-12-18 14:41:24,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24" (1/1) ... [2019-12-18 14:41:24,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:41:24,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:41:24,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:41:24,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:41:24,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24" (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 [2019-12-18 14:41:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:41:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:41:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:41:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:41:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:41:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:41:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:41:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:41:24,387 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:41:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:41:24,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:41:24,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:41:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:41:24,389 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 14:41:24,744 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:41:24,745 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:41:24,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:41:24 BoogieIcfgContainer [2019-12-18 14:41:24,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:41:24,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:41:24,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:41:24,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:41:24,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:41:23" (1/3) ... [2019-12-18 14:41:24,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245a60ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:41:24, skipping insertion in model container [2019-12-18 14:41:24,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:41:24" (2/3) ... [2019-12-18 14:41:24,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245a60ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:41:24, skipping insertion in model container [2019-12-18 14:41:24,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:41:24" (3/3) ... [2019-12-18 14:41:24,755 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt.i [2019-12-18 14:41:24,765 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:41:24,765 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:41:24,772 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:41:24,772 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:41:24,805 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,805 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,806 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,806 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,806 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,807 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,807 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,807 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,808 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,808 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,808 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,809 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,809 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,809 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,809 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,810 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,810 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,810 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,814 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,815 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,815 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,815 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,821 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,821 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,822 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,822 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,830 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,831 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,831 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,831 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:41:24,845 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:41:24,862 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:41:24,863 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:41:24,863 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:41:24,863 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:41:24,863 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:41:24,863 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:41:24,863 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:41:24,864 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:41:24,876 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 14:41:24,878 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:41:24,918 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:41:24,919 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:41:24,932 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:41:24,934 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:41:24,950 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:41:24,951 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:41:24,952 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:41:24,954 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:41:24,955 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:41:26,397 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 14:41:26,561 INFO L206 etLargeBlockEncoding]: Checked pairs total: 479 [2019-12-18 14:41:26,561 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-18 14:41:26,565 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 14:41:26,577 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 14:41:26,580 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 14:41:26,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:41:26,587 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:41:26,588 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:41:26,589 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:41:26,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:41:26,595 INFO L82 PathProgramCache]: Analyzing trace with hash -196435608, now seen corresponding path program 1 times [2019-12-18 14:41:26,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:41:26,605 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927361491] [2019-12-18 14:41:26,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:41:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:41:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:41:26,934 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927361491] [2019-12-18 14:41:26,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:41:26,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:41:26,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635519977] [2019-12-18 14:41:26,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:41:26,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:41:26,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:41:26,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:41:26,962 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 14:41:27,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:41:27,003 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-18 14:41:27,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:41:27,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:41:27,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:41:27,034 INFO L225 Difference]: With dead ends: 44 [2019-12-18 14:41:27,035 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 14:41:27,036 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:41:27,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 14:41:27,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 14:41:27,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 14:41:27,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 14:41:27,085 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 14:41:27,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:41:27,086 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 14:41:27,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:41:27,087 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 14:41:27,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:41:27,089 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:41:27,089 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:41:27,089 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:41:27,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:41:27,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1074136562, now seen corresponding path program 1 times [2019-12-18 14:41:27,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:41:27,090 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628795004] [2019-12-18 14:41:27,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:41:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:41:27,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:41:27,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628795004] [2019-12-18 14:41:27,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:41:27,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:41:27,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917331712] [2019-12-18 14:41:27,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:41:27,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:41:27,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:41:27,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:41:27,196 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 14:41:27,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:41:27,206 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-18 14:41:27,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:41:27,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 14:41:27,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:41:27,207 INFO L225 Difference]: With dead ends: 34 [2019-12-18 14:41:27,208 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 14:41:27,209 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:41:27,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 14:41:27,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 14:41:27,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:41:27,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 14:41:27,218 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-18 14:41:27,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:41:27,218 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 14:41:27,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:41:27,218 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 14:41:27,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:41:27,219 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:41:27,219 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:41:27,220 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:41:27,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:41:27,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1794448346, now seen corresponding path program 1 times [2019-12-18 14:41:27,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:41:27,221 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347861762] [2019-12-18 14:41:27,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:41:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:41:27,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:41:27,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347861762] [2019-12-18 14:41:27,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:41:27,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:41:27,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000219731] [2019-12-18 14:41:27,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:41:27,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:41:27,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:41:27,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:41:27,262 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 14:41:27,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:41:27,272 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 14:41:27,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:41:27,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 14:41:27,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:41:27,274 INFO L225 Difference]: With dead ends: 36 [2019-12-18 14:41:27,274 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 14:41:27,275 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:41:27,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 14:41:27,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 14:41:27,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 14:41:27,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 14:41:27,279 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 14:41:27,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:41:27,280 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 14:41:27,281 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:41:27,281 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 14:41:27,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:41:27,283 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:41:27,283 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:41:27,283 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:41:27,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:41:27,284 INFO L82 PathProgramCache]: Analyzing trace with hash 206758562, now seen corresponding path program 1 times [2019-12-18 14:41:27,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:41:27,284 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326444209] [2019-12-18 14:41:27,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:41:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:41:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:41:27,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326444209] [2019-12-18 14:41:27,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:41:27,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:41:27,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995375128] [2019-12-18 14:41:27,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:41:27,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:41:27,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:41:27,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:41:27,386 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 14:41:27,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:41:27,409 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 14:41:27,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:41:27,410 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 14:41:27,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:41:27,410 INFO L225 Difference]: With dead ends: 25 [2019-12-18 14:41:27,410 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 14:41:27,411 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:41:27,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 14:41:27,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 14:41:27,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 14:41:27,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 14:41:27,414 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 14:41:27,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:41:27,414 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 14:41:27,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:41:27,415 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 14:41:27,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:41:27,415 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:41:27,415 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:41:27,416 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:41:27,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:41:27,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1297271908, now seen corresponding path program 1 times [2019-12-18 14:41:27,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:41:27,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988407186] [2019-12-18 14:41:27,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:41:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:41:27,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:41:27,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988407186] [2019-12-18 14:41:27,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:41:27,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:41:27,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20319810] [2019-12-18 14:41:27,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:41:27,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:41:27,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:41:27,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:41:27,474 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 14:41:27,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:41:27,488 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 14:41:27,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:41:27,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:41:27,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:41:27,489 INFO L225 Difference]: With dead ends: 16 [2019-12-18 14:41:27,489 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:41:27,489 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:41:27,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:41:27,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:41:27,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:41:27,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:41:27,490 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:41:27,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:41:27,490 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:41:27,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:41:27,495 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:41:27,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:41:27,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:41:27 BasicIcfg [2019-12-18 14:41:27,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:41:27,503 INFO L168 Benchmark]: Toolchain (without parser) took 4033.51 ms. Allocated memory was 136.8 MB in the beginning and 250.6 MB in the end (delta: 113.8 MB). Free memory was 98.4 MB in the beginning and 153.9 MB in the end (delta: -55.4 MB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:41:27,504 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 14:41:27,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.67 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 98.2 MB in the beginning and 158.4 MB in the end (delta: -60.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-18 14:41:27,510 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.13 ms. Allocated memory is still 201.9 MB. Free memory was 158.4 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:41:27,511 INFO L168 Benchmark]: Boogie Preprocessor took 27.89 ms. Allocated memory is still 201.9 MB. Free memory was 156.4 MB in the beginning and 155.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 14:41:27,511 INFO L168 Benchmark]: RCFGBuilder took 424.07 ms. Allocated memory is still 201.9 MB. Free memory was 155.0 MB in the beginning and 134.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-18 14:41:27,514 INFO L168 Benchmark]: TraceAbstraction took 2752.32 ms. Allocated memory was 201.9 MB in the beginning and 250.6 MB in the end (delta: 48.8 MB). Free memory was 134.4 MB in the beginning and 153.9 MB in the end (delta: -19.5 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:41:27,522 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.67 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 98.2 MB in the beginning and 158.4 MB in the end (delta: -60.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.13 ms. Allocated memory is still 201.9 MB. Free memory was 158.4 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.89 ms. Allocated memory is still 201.9 MB. Free memory was 156.4 MB in the beginning and 155.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 424.07 ms. Allocated memory is still 201.9 MB. Free memory was 155.0 MB in the beginning and 134.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2752.32 ms. Allocated memory was 201.9 MB in the beginning and 250.6 MB in the end (delta: 48.8 MB). Free memory was 134.4 MB in the beginning and 153.9 MB in the end (delta: -19.5 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 229 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 479 CheckedPairsTotal, 46 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 17 SDslu, 41 SDs, 0 SdLazy, 19 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 878 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...