/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/safe009_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 23:40:08,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 23:40:08,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 23:40:08,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 23:40:08,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 23:40:08,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 23:40:08,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 23:40:08,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 23:40:08,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 23:40:08,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 23:40:08,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 23:40:08,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 23:40:08,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 23:40:08,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 23:40:08,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 23:40:08,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 23:40:08,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 23:40:08,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 23:40:08,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 23:40:08,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 23:40:08,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 23:40:08,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 23:40:08,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 23:40:08,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 23:40:08,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 23:40:08,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 23:40:08,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 23:40:08,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 23:40:08,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 23:40:08,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 23:40:08,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 23:40:08,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 23:40:08,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 23:40:08,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 23:40:08,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 23:40:08,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 23:40:08,646 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 [2019-12-26 23:40:08,660 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 23:40:08,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 23:40:08,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 23:40:08,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 23:40:08,662 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 23:40:08,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 23:40:08,663 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 23:40:08,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 23:40:08,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 23:40:08,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 23:40:08,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 23:40:08,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 23:40:08,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 23:40:08,664 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 23:40:08,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 23:40:08,664 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 23:40:08,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 23:40:08,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 23:40:08,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 23:40:08,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 23:40:08,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 23:40:08,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:40:08,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 23:40:08,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 23:40:08,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 23:40:08,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 23:40:08,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 23:40:08,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 23:40:08,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 23:40:08,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 23:40:08,998 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 23:40:09,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 23:40:09,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 23:40:09,023 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 23:40:09,024 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 23:40:09,025 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2019-12-26 23:40:09,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd82d119a/2f1a73e5150a455e940e57f3c147901f/FLAGbb3f73c1a [2019-12-26 23:40:09,655 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 23:40:09,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2019-12-26 23:40:09,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd82d119a/2f1a73e5150a455e940e57f3c147901f/FLAGbb3f73c1a [2019-12-26 23:40:09,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd82d119a/2f1a73e5150a455e940e57f3c147901f [2019-12-26 23:40:09,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 23:40:09,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 23:40:09,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 23:40:09,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 23:40:09,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 23:40:09,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:40:09" (1/1) ... [2019-12-26 23:40:09,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6294424c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:09, skipping insertion in model container [2019-12-26 23:40:09,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:40:09" (1/1) ... [2019-12-26 23:40:09,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 23:40:09,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 23:40:10,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:40:10,521 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 23:40:10,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:40:10,655 INFO L208 MainTranslator]: Completed translation [2019-12-26 23:40:10,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10 WrapperNode [2019-12-26 23:40:10,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 23:40:10,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 23:40:10,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 23:40:10,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 23:40:10,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10" (1/1) ... [2019-12-26 23:40:10,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10" (1/1) ... [2019-12-26 23:40:10,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 23:40:10,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 23:40:10,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 23:40:10,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 23:40:10,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10" (1/1) ... [2019-12-26 23:40:10,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10" (1/1) ... [2019-12-26 23:40:10,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10" (1/1) ... [2019-12-26 23:40:10,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10" (1/1) ... [2019-12-26 23:40:10,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10" (1/1) ... [2019-12-26 23:40:10,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10" (1/1) ... [2019-12-26 23:40:10,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10" (1/1) ... [2019-12-26 23:40:10,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 23:40:10,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 23:40:10,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 23:40:10,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 23:40:10,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10" (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 [2019-12-26 23:40:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 23:40:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-26 23:40:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 23:40:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 23:40:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-26 23:40:10,809 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-26 23:40:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-26 23:40:10,811 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-26 23:40:10,811 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-26 23:40:10,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-26 23:40:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-26 23:40:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 23:40:10,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 23:40:10,814 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 23:40:11,167 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 23:40:11,167 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 23:40:11,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:40:11 BoogieIcfgContainer [2019-12-26 23:40:11,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 23:40:11,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 23:40:11,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 23:40:11,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 23:40:11,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:40:09" (1/3) ... [2019-12-26 23:40:11,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382ee404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:40:11, skipping insertion in model container [2019-12-26 23:40:11,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:40:10" (2/3) ... [2019-12-26 23:40:11,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382ee404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:40:11, skipping insertion in model container [2019-12-26 23:40:11,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:40:11" (3/3) ... [2019-12-26 23:40:11,177 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i [2019-12-26 23:40:11,187 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 23:40:11,188 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 23:40:11,195 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 23:40:11,196 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 23:40:11,223 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,224 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,224 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,224 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,225 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,225 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,226 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,226 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,226 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,226 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,227 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,227 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,227 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,227 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,228 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,228 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,228 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,228 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,231 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,232 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,232 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,232 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,238 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,239 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,239 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,239 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,242 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,243 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,243 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,243 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:40:11,260 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 23:40:11,275 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 23:40:11,276 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 23:40:11,276 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 23:40:11,276 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 23:40:11,276 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 23:40:11,276 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 23:40:11,276 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 23:40:11,277 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 23:40:11,289 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-26 23:40:11,291 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:40:11,334 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:40:11,334 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:40:11,341 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:40:11,345 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:40:11,364 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:40:11,365 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:40:11,367 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:40:11,369 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-26 23:40:11,370 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 23:40:12,797 INFO L206 etLargeBlockEncoding]: Checked pairs total: 444 [2019-12-26 23:40:12,797 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-26 23:40:12,801 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-26 23:40:12,811 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-26 23:40:12,813 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-26 23:40:12,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 23:40:12,820 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:40:12,821 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:40:12,821 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:40:12,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:40:12,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1049428584, now seen corresponding path program 1 times [2019-12-26 23:40:12,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:40:12,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085273595] [2019-12-26 23:40:12,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:40:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:40:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:40:13,051 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085273595] [2019-12-26 23:40:13,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:40:13,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:40:13,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61677778] [2019-12-26 23:40:13,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:40:13,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:40:13,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:40:13,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:40:13,077 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-26 23:40:13,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:40:13,117 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-26 23:40:13,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:40:13,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 23:40:13,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:40:13,131 INFO L225 Difference]: With dead ends: 44 [2019-12-26 23:40:13,131 INFO L226 Difference]: Without dead ends: 36 [2019-12-26 23:40:13,132 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 [2019-12-26 23:40:13,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-26 23:40:13,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-26 23:40:13,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-26 23:40:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-26 23:40:13,171 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-26 23:40:13,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:40:13,172 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-26 23:40:13,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:40:13,173 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-26 23:40:13,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:40:13,174 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:40:13,174 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:40:13,174 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:40:13,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:40:13,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452116, now seen corresponding path program 1 times [2019-12-26 23:40:13,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:40:13,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728726495] [2019-12-26 23:40:13,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:40:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:40:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:40:13,287 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728726495] [2019-12-26 23:40:13,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:40:13,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:40:13,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489696549] [2019-12-26 23:40:13,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:40:13,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:40:13,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:40:13,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:40:13,292 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-26 23:40:13,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:40:13,299 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-26 23:40:13,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:40:13,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-26 23:40:13,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:40:13,301 INFO L225 Difference]: With dead ends: 34 [2019-12-26 23:40:13,301 INFO L226 Difference]: Without dead ends: 34 [2019-12-26 23:40:13,302 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 [2019-12-26 23:40:13,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-26 23:40:13,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-26 23:40:13,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-26 23:40:13,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-26 23:40:13,314 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-26 23:40:13,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:40:13,316 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-26 23:40:13,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:40:13,317 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-26 23:40:13,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:40:13,317 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:40:13,318 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:40:13,318 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:40:13,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:40:13,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452178, now seen corresponding path program 1 times [2019-12-26 23:40:13,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:40:13,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726386254] [2019-12-26 23:40:13,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:40:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:40:13,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:40:13,371 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726386254] [2019-12-26 23:40:13,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:40:13,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:40:13,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171182416] [2019-12-26 23:40:13,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:40:13,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:40:13,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:40:13,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:40:13,374 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-26 23:40:13,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:40:13,391 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-26 23:40:13,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:40:13,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-26 23:40:13,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:40:13,392 INFO L225 Difference]: With dead ends: 36 [2019-12-26 23:40:13,392 INFO L226 Difference]: Without dead ends: 28 [2019-12-26 23:40:13,393 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 [2019-12-26 23:40:13,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-26 23:40:13,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-26 23:40:13,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-26 23:40:13,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-26 23:40:13,397 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-26 23:40:13,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:40:13,397 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-26 23:40:13,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:40:13,397 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-26 23:40:13,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:40:13,398 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:40:13,398 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:40:13,399 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:40:13,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:40:13,399 INFO L82 PathProgramCache]: Analyzing trace with hash 816442522, now seen corresponding path program 1 times [2019-12-26 23:40:13,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:40:13,400 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038619977] [2019-12-26 23:40:13,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:40:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:40:13,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:40:13,456 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038619977] [2019-12-26 23:40:13,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:40:13,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:40:13,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371494417] [2019-12-26 23:40:13,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:40:13,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:40:13,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:40:13,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:40:13,461 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 4 states. [2019-12-26 23:40:13,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:40:13,487 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-26 23:40:13,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:40:13,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-26 23:40:13,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:40:13,488 INFO L225 Difference]: With dead ends: 33 [2019-12-26 23:40:13,488 INFO L226 Difference]: Without dead ends: 21 [2019-12-26 23:40:13,490 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 [2019-12-26 23:40:13,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-26 23:40:13,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-26 23:40:13,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-26 23:40:13,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-26 23:40:13,495 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-26 23:40:13,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:40:13,495 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-26 23:40:13,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:40:13,495 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-26 23:40:13,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:40:13,496 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:40:13,496 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:40:13,496 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:40:13,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:40:13,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1244284059, now seen corresponding path program 1 times [2019-12-26 23:40:13,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:40:13,499 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954281837] [2019-12-26 23:40:13,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:40:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:40:13,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:40:13,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954281837] [2019-12-26 23:40:13,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:40:13,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:40:13,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629275294] [2019-12-26 23:40:13,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:40:13,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:40:13,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:40:13,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:40:13,596 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 4 states. [2019-12-26 23:40:13,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:40:13,615 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-26 23:40:13,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:40:13,615 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:40:13,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:40:13,616 INFO L225 Difference]: With dead ends: 20 [2019-12-26 23:40:13,616 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 23:40:13,616 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 [2019-12-26 23:40:13,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 23:40:13,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 23:40:13,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 23:40:13,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 23:40:13,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 23:40:13,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:40:13,617 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 23:40:13,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:40:13,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 23:40:13,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 23:40:13,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 11:40:13 BasicIcfg [2019-12-26 23:40:13,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 23:40:13,631 INFO L168 Benchmark]: Toolchain (without parser) took 3711.64 ms. Allocated memory was 143.7 MB in the beginning and 251.7 MB in the end (delta: 108.0 MB). Free memory was 100.1 MB in the beginning and 164.3 MB in the end (delta: -64.2 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:13,632 INFO L168 Benchmark]: CDTParser took 1.52 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-26 23:40:13,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.23 ms. Allocated memory was 143.7 MB in the beginning and 199.8 MB in the end (delta: 56.1 MB). Free memory was 99.9 MB in the beginning and 154.7 MB in the end (delta: -54.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:13,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.57 ms. Allocated memory is still 199.8 MB. Free memory was 154.7 MB in the beginning and 152.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:13,640 INFO L168 Benchmark]: Boogie Preprocessor took 25.41 ms. Allocated memory is still 199.8 MB. Free memory was 152.6 MB in the beginning and 151.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:13,640 INFO L168 Benchmark]: RCFGBuilder took 437.70 ms. Allocated memory is still 199.8 MB. Free memory was 151.2 MB in the beginning and 130.4 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:13,643 INFO L168 Benchmark]: TraceAbstraction took 2456.43 ms. Allocated memory was 199.8 MB in the beginning and 251.7 MB in the end (delta: 51.9 MB). Free memory was 130.4 MB in the beginning and 164.3 MB in the end (delta: -33.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2019-12-26 23:40:13,648 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.52 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.23 ms. Allocated memory was 143.7 MB in the beginning and 199.8 MB in the end (delta: 56.1 MB). Free memory was 99.9 MB in the beginning and 154.7 MB in the end (delta: -54.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.57 ms. Allocated memory is still 199.8 MB. Free memory was 154.7 MB in the beginning and 152.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.41 ms. Allocated memory is still 199.8 MB. Free memory was 152.6 MB in the beginning and 151.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.70 ms. Allocated memory is still 199.8 MB. Free memory was 151.2 MB in the beginning and 130.4 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2456.43 ms. Allocated memory was 199.8 MB in the beginning and 251.7 MB in the end (delta: 51.9 MB). Free memory was 130.4 MB in the beginning and 164.3 MB in the end (delta: -33.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 219 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 444 CheckedPairsTotal, 45 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 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, 962 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...