./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 96f16385 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b2ec5d1280aea0e3ccee7be9de9fd1335771b616 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-96f1638 [2020-12-02 12:06:24,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 12:06:24,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 12:06:24,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 12:06:24,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 12:06:24,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 12:06:24,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 12:06:24,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 12:06:24,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 12:06:24,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 12:06:24,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 12:06:24,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 12:06:24,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 12:06:24,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 12:06:24,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 12:06:24,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 12:06:24,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 12:06:24,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 12:06:24,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 12:06:24,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 12:06:24,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 12:06:24,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 12:06:24,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 12:06:24,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 12:06:24,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 12:06:24,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 12:06:24,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 12:06:24,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 12:06:24,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 12:06:24,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 12:06:24,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 12:06:24,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 12:06:24,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 12:06:24,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 12:06:24,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 12:06:24,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 12:06:24,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 12:06:24,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 12:06:24,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 12:06:24,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 12:06:24,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 12:06:24,652 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 12:06:24,680 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 12:06:24,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 12:06:24,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 12:06:24,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 12:06:24,682 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 12:06:24,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 12:06:24,683 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 12:06:24,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 12:06:24,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 12:06:24,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 12:06:24,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 12:06:24,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 12:06:24,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 12:06:24,685 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 12:06:24,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 12:06:24,685 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 12:06:24,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 12:06:24,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 12:06:24,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 12:06:24,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 12:06:24,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 12:06:24,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 12:06:24,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 12:06:24,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 12:06:24,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 12:06:24,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 12:06:24,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 12:06:24,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 12:06:24,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 12:06:24,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2ec5d1280aea0e3ccee7be9de9fd1335771b616 [2020-12-02 12:06:25,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 12:06:25,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 12:06:25,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 12:06:25,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 12:06:25,134 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 12:06:25,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i [2020-12-02 12:06:25,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d552b5a3/a9a06982763f4b27927c3c0381c66373/FLAGee54fd73c [2020-12-02 12:06:25,999 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 12:06:26,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i [2020-12-02 12:06:26,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d552b5a3/a9a06982763f4b27927c3c0381c66373/FLAGee54fd73c [2020-12-02 12:06:26,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d552b5a3/a9a06982763f4b27927c3c0381c66373 [2020-12-02 12:06:26,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 12:06:26,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 12:06:26,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 12:06:26,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 12:06:26,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 12:06:26,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:06:26" (1/1) ... [2020-12-02 12:06:26,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b554ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26, skipping insertion in model container [2020-12-02 12:06:26,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:06:26" (1/1) ... [2020-12-02 12:06:26,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 12:06:26,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 12:06:26,547 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i[950,963] [2020-12-02 12:06:26,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:06:26,740 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 12:06:26,756 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i[950,963] [2020-12-02 12:06:26,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:06:26,913 INFO L208 MainTranslator]: Completed translation [2020-12-02 12:06:26,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26 WrapperNode [2020-12-02 12:06:26,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 12:06:26,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 12:06:26,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 12:06:26,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 12:06:26,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26" (1/1) ... [2020-12-02 12:06:26,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26" (1/1) ... [2020-12-02 12:06:26,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 12:06:26,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 12:06:26,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 12:06:26,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 12:06:26,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26" (1/1) ... [2020-12-02 12:06:26,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26" (1/1) ... [2020-12-02 12:06:26,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26" (1/1) ... [2020-12-02 12:06:26,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26" (1/1) ... [2020-12-02 12:06:27,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26" (1/1) ... [2020-12-02 12:06:27,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26" (1/1) ... [2020-12-02 12:06:27,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26" (1/1) ... [2020-12-02 12:06:27,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 12:06:27,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 12:06:27,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 12:06:27,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 12:06:27,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26" (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 [2020-12-02 12:06:27,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 12:06:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-02 12:06:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 12:06:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 12:06:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-02 12:06:27,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-02 12:06:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-02 12:06:27,134 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-02 12:06:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-02 12:06:27,134 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-02 12:06:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 12:06:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-02 12:06:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 12:06:27,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 12:06:27,137 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-02 12:06:27,660 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 12:06:27,661 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-02 12:06:27,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:06:27 BoogieIcfgContainer [2020-12-02 12:06:27,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 12:06:27,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 12:06:27,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 12:06:27,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 12:06:27,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:06:26" (1/3) ... [2020-12-02 12:06:27,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d983cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:06:27, skipping insertion in model container [2020-12-02 12:06:27,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:06:26" (2/3) ... [2020-12-02 12:06:27,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d983cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:06:27, skipping insertion in model container [2020-12-02 12:06:27,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:06:27" (3/3) ... [2020-12-02 12:06:27,679 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2020-12-02 12:06:27,700 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-02 12:06:27,700 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 12:06:27,704 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 12:06:27,705 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-02 12:06:27,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,754 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,755 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,755 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,756 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,756 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,756 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,758 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,759 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,759 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,759 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,759 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,759 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,763 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,764 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,764 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,764 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,769 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,769 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,769 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,770 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,772 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,772 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:06:27,774 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-02 12:06:27,786 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-02 12:06:27,809 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 12:06:27,809 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 12:06:27,809 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 12:06:27,809 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 12:06:27,809 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 12:06:27,809 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 12:06:27,810 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 12:06:27,810 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 12:06:27,822 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-02 12:06:27,824 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-02 12:06:27,827 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2020-12-02 12:06:27,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2020-12-02 12:06:27,873 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-12-02 12:06:27,873 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-02 12:06:27,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-02 12:06:27,880 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-02 12:06:30,810 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-02 12:06:30,925 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-02 12:06:31,173 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-02 12:06:31,285 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-02 12:06:31,569 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-12-02 12:06:31,638 INFO L131 LiptonReduction]: Checked pairs total: 2541 [2020-12-02 12:06:31,638 INFO L133 LiptonReduction]: Total number of compositions: 64 [2020-12-02 12:06:31,645 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-12-02 12:06:31,683 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-02 12:06:31,685 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-02 12:06:31,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-02 12:06:31,692 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:06:31,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:06:31,694 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:06:31,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:06:31,700 INFO L82 PathProgramCache]: Analyzing trace with hash 995547002, now seen corresponding path program 1 times [2020-12-02 12:06:31,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:06:31,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522706931] [2020-12-02 12:06:31,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:06:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:06:32,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:06:32,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522706931] [2020-12-02 12:06:32,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:06:32,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-02 12:06:32,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285647551] [2020-12-02 12:06:32,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 12:06:32,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:06:32,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 12:06:32,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 12:06:32,109 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-12-02 12:06:32,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:06:32,170 INFO L93 Difference]: Finished difference Result 360 states and 1001 transitions. [2020-12-02 12:06:32,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 12:06:32,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-02 12:06:32,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:06:32,198 INFO L225 Difference]: With dead ends: 360 [2020-12-02 12:06:32,198 INFO L226 Difference]: Without dead ends: 233 [2020-12-02 12:06:32,200 INFO L677 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 [2020-12-02 12:06:32,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-12-02 12:06:32,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2020-12-02 12:06:32,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-02 12:06:32,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 652 transitions. [2020-12-02 12:06:32,275 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 652 transitions. Word has length 8 [2020-12-02 12:06:32,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:06:32,276 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 652 transitions. [2020-12-02 12:06:32,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 12:06:32,277 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 652 transitions. [2020-12-02 12:06:32,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 12:06:32,278 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:06:32,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:06:32,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 12:06:32,279 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:06:32,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:06:32,280 INFO L82 PathProgramCache]: Analyzing trace with hash 755699245, now seen corresponding path program 1 times [2020-12-02 12:06:32,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:06:32,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55736525] [2020-12-02 12:06:32,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:06:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:06:32,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:06:32,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55736525] [2020-12-02 12:06:32,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:06:32,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:06:32,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709499513] [2020-12-02 12:06:32,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:06:32,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:06:32,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:06:32,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:06:32,425 INFO L87 Difference]: Start difference. First operand 233 states and 652 transitions. Second operand 4 states. [2020-12-02 12:06:32,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:06:32,493 INFO L93 Difference]: Finished difference Result 383 states and 1016 transitions. [2020-12-02 12:06:32,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:06:32,494 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-02 12:06:32,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:06:32,502 INFO L225 Difference]: With dead ends: 383 [2020-12-02 12:06:32,505 INFO L226 Difference]: Without dead ends: 329 [2020-12-02 12:06:32,507 INFO L677 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 [2020-12-02 12:06:32,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-12-02 12:06:32,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 284. [2020-12-02 12:06:32,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-12-02 12:06:32,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 779 transitions. [2020-12-02 12:06:32,577 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 779 transitions. Word has length 9 [2020-12-02 12:06:32,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:06:32,579 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 779 transitions. [2020-12-02 12:06:32,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:06:32,580 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 779 transitions. [2020-12-02 12:06:32,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 12:06:32,585 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:06:32,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:06:32,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 12:06:32,585 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:06:32,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:06:32,586 INFO L82 PathProgramCache]: Analyzing trace with hash 797195438, now seen corresponding path program 1 times [2020-12-02 12:06:32,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:06:32,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089989916] [2020-12-02 12:06:32,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:06:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:06:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:06:32,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089989916] [2020-12-02 12:06:32,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:06:32,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:06:32,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904094612] [2020-12-02 12:06:32,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:06:32,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:06:32,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:06:32,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:06:32,695 INFO L87 Difference]: Start difference. First operand 284 states and 779 transitions. Second operand 4 states. [2020-12-02 12:06:32,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:06:32,714 INFO L93 Difference]: Finished difference Result 269 states and 727 transitions. [2020-12-02 12:06:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 12:06:32,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-02 12:06:32,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:06:32,720 INFO L225 Difference]: With dead ends: 269 [2020-12-02 12:06:32,721 INFO L226 Difference]: Without dead ends: 269 [2020-12-02 12:06:32,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:06:32,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-12-02 12:06:32,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2020-12-02 12:06:32,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-12-02 12:06:32,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 727 transitions. [2020-12-02 12:06:32,758 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 727 transitions. Word has length 9 [2020-12-02 12:06:32,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:06:32,758 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 727 transitions. [2020-12-02 12:06:32,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:06:32,758 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 727 transitions. [2020-12-02 12:06:32,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 12:06:32,767 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:06:32,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:06:32,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 12:06:32,768 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:06:32,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:06:32,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1951849563, now seen corresponding path program 1 times [2020-12-02 12:06:32,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:06:32,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638444270] [2020-12-02 12:06:32,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:06:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:06:32,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:06:32,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638444270] [2020-12-02 12:06:32,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:06:32,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:06:32,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537484798] [2020-12-02 12:06:32,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:06:32,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:06:32,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:06:32,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:06:32,875 INFO L87 Difference]: Start difference. First operand 269 states and 727 transitions. Second operand 4 states. [2020-12-02 12:06:32,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:06:32,896 INFO L93 Difference]: Finished difference Result 290 states and 749 transitions. [2020-12-02 12:06:32,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 12:06:32,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-02 12:06:32,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:06:32,898 INFO L225 Difference]: With dead ends: 290 [2020-12-02 12:06:32,899 INFO L226 Difference]: Without dead ends: 176 [2020-12-02 12:06:32,899 INFO L677 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 [2020-12-02 12:06:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-12-02 12:06:32,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 140. [2020-12-02 12:06:32,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-12-02 12:06:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 339 transitions. [2020-12-02 12:06:32,906 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 339 transitions. Word has length 10 [2020-12-02 12:06:32,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:06:32,907 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 339 transitions. [2020-12-02 12:06:32,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:06:32,907 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 339 transitions. [2020-12-02 12:06:32,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 12:06:32,908 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:06:32,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:06:32,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-02 12:06:32,909 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:06:32,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:06:32,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1183830127, now seen corresponding path program 1 times [2020-12-02 12:06:32,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:06:32,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364698272] [2020-12-02 12:06:32,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:06:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:06:32,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:06:32,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364698272] [2020-12-02 12:06:32,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:06:32,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:06:32,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860282892] [2020-12-02 12:06:32,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:06:32,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:06:32,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:06:32,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:06:32,969 INFO L87 Difference]: Start difference. First operand 140 states and 339 transitions. Second operand 5 states. [2020-12-02 12:06:32,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:06:32,993 INFO L93 Difference]: Finished difference Result 158 states and 372 transitions. [2020-12-02 12:06:32,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 12:06:32,994 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-02 12:06:32,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:06:32,995 INFO L225 Difference]: With dead ends: 158 [2020-12-02 12:06:32,995 INFO L226 Difference]: Without dead ends: 68 [2020-12-02 12:06:32,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:06:32,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-02 12:06:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-12-02 12:06:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-02 12:06:33,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-12-02 12:06:33,001 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-12-02 12:06:33,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:06:33,001 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-12-02 12:06:33,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:06:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-12-02 12:06:33,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 12:06:33,003 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:06:33,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:06:33,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-02 12:06:33,004 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:06:33,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:06:33,005 INFO L82 PathProgramCache]: Analyzing trace with hash -936336033, now seen corresponding path program 1 times [2020-12-02 12:06:33,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:06:33,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112659805] [2020-12-02 12:06:33,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:06:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:06:33,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:06:33,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112659805] [2020-12-02 12:06:33,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:06:33,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:06:33,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677591940] [2020-12-02 12:06:33,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:06:33,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:06:33,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:06:33,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:06:33,113 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 5 states. [2020-12-02 12:06:33,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:06:33,126 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-12-02 12:06:33,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 12:06:33,127 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-02 12:06:33,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:06:33,127 INFO L225 Difference]: With dead ends: 56 [2020-12-02 12:06:33,127 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 12:06:33,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:06:33,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 12:06:33,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 12:06:33,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 12:06:33,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 12:06:33,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-02 12:06:33,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:06:33,129 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 12:06:33,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:06:33,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 12:06:33,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 12:06:33,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-02 12:06:33,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:06:33 BasicIcfg [2020-12-02 12:06:33,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 12:06:33,134 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 12:06:33,134 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 12:06:33,134 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 12:06:33,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:06:27" (3/4) ... [2020-12-02 12:06:33,140 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 12:06:33,150 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-02 12:06:33,150 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-02 12:06:33,150 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-02 12:06:33,158 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-02 12:06:33,158 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 12:06:33,158 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:06:33,159 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:06:33,232 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 12:06:33,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 12:06:33,237 INFO L168 Benchmark]: Toolchain (without parser) took 7061.40 ms. Allocated memory was 50.3 MB in the beginning and 107.0 MB in the end (delta: 56.6 MB). Free memory was 26.6 MB in the beginning and 48.6 MB in the end (delta: -22.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2020-12-02 12:06:33,238 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 37.7 MB. Free memory was 18.2 MB in the beginning and 18.2 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:06:33,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.18 ms. Allocated memory is still 50.3 MB. Free memory was 26.3 MB in the beginning and 20.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-12-02 12:06:33,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.12 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 20.6 MB in the beginning and 43.9 MB in the end (delta: -23.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:06:33,240 INFO L168 Benchmark]: Boogie Preprocessor took 37.08 ms. Allocated memory is still 60.8 MB. Free memory was 43.9 MB in the beginning and 42.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:06:33,243 INFO L168 Benchmark]: RCFGBuilder took 642.15 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 36.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-12-02 12:06:33,243 INFO L168 Benchmark]: TraceAbstraction took 5463.04 ms. Allocated memory was 60.8 MB in the beginning and 107.0 MB in the end (delta: 46.1 MB). Free memory was 35.9 MB in the beginning and 50.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-02 12:06:33,246 INFO L168 Benchmark]: Witness Printer took 102.12 ms. Allocated memory is still 107.0 MB. Free memory was 50.8 MB in the beginning and 48.6 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:06:33,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 37.7 MB. Free memory was 18.2 MB in the beginning and 18.2 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 737.18 ms. Allocated memory is still 50.3 MB. Free memory was 26.3 MB in the beginning and 20.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.12 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 20.6 MB in the beginning and 43.9 MB in the end (delta: -23.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.08 ms. Allocated memory is still 60.8 MB. Free memory was 43.9 MB in the beginning and 42.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 642.15 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 36.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5463.04 ms. Allocated memory was 60.8 MB in the beginning and 107.0 MB in the end (delta: 46.1 MB). Free memory was 35.9 MB in the beginning and 50.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 102.12 ms. Allocated memory is still 107.0 MB. Free memory was 50.8 MB in the beginning and 48.6 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 856 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 84 PlacesBefore, 31 PlacesAfterwards, 76 TransitionsBefore, 21 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 64 TotalNumberOfCompositions, 2541 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 107 SDtfs, 128 SDslu, 96 SDs, 0 SdLazy, 33 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 81 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 2929 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...