./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe034_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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/safe034_tso.opt.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 25cb318ab1a29f2a64c5b78bc114eca9d9643fed ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:08:24,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:08:24,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:08:24,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:08:24,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:08:24,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:08:24,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:08:24,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:08:24,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:08:24,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:08:24,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:08:24,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:08:24,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:08:24,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:08:24,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:08:24,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:08:24,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:08:24,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:08:24,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:08:24,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:08:24,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:08:24,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:08:24,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:08:24,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:08:24,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:08:24,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:08:24,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:08:24,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:08:24,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:08:24,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:08:24,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:08:24,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:08:24,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:08:24,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:08:24,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:08:24,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:08:24,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:08:24,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:08:24,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:08:24,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:08:24,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:08:24,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:08:24,804 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:08:24,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:08:24,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:08:24,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:08:24,806 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:08:24,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:08:24,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:08:24,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:08:24,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:08:24,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:08:24,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:08:24,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:08:24,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:08:24,810 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:08:24,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:08:24,810 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:08:24,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:08:24,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:08:24,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:08:24,811 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:08:24,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:08:24,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:08:24,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:08:24,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:08:24,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:08:24,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:08:24,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:08:24,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:08:24,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:08:24,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 25cb318ab1a29f2a64c5b78bc114eca9d9643fed [2020-10-20 03:08:25,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:08:25,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:08:25,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:08:25,038 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:08:25,038 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:08:25,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe034_tso.opt.i [2020-10-20 03:08:25,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c0d5390/ff2ed8effa4a4d77bd5df821540541f6/FLAG9970e1917 [2020-10-20 03:08:25,672 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:08:25,673 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe034_tso.opt.i [2020-10-20 03:08:25,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c0d5390/ff2ed8effa4a4d77bd5df821540541f6/FLAG9970e1917 [2020-10-20 03:08:25,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c0d5390/ff2ed8effa4a4d77bd5df821540541f6 [2020-10-20 03:08:25,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:08:25,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:08:25,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:08:25,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:08:25,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:08:25,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:08:25" (1/1) ... [2020-10-20 03:08:25,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d7abdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:25, skipping insertion in model container [2020-10-20 03:08:25,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:08:25" (1/1) ... [2020-10-20 03:08:25,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:08:26,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:08:26,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:08:26,619 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:08:26,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:08:26,761 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:08:26,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26 WrapperNode [2020-10-20 03:08:26,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:08:26,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:08:26,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:08:26,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:08:26,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26" (1/1) ... [2020-10-20 03:08:26,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26" (1/1) ... [2020-10-20 03:08:26,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:08:26,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:08:26,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:08:26,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:08:26,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26" (1/1) ... [2020-10-20 03:08:26,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26" (1/1) ... [2020-10-20 03:08:26,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26" (1/1) ... [2020-10-20 03:08:26,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26" (1/1) ... [2020-10-20 03:08:26,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26" (1/1) ... [2020-10-20 03:08:26,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26" (1/1) ... [2020-10-20 03:08:26,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26" (1/1) ... [2020-10-20 03:08:26,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:08:26,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:08:26,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:08:26,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:08:26,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26" (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 [2020-10-20 03:08:26,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:08:26,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:08:26,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:08:26,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:08:26,930 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:08:26,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:08:26,930 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:08:26,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:08:26,931 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-20 03:08:26,931 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-20 03:08:26,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:08:26,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:08:26,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:08:26,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:08:26,934 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:08:27,345 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:08:27,346 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:08:27,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:27 BoogieIcfgContainer [2020-10-20 03:08:27,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:08:27,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:08:27,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:08:27,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:08:27,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:08:25" (1/3) ... [2020-10-20 03:08:27,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b2ee19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:08:27, skipping insertion in model container [2020-10-20 03:08:27,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:26" (2/3) ... [2020-10-20 03:08:27,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b2ee19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:08:27, skipping insertion in model container [2020-10-20 03:08:27,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:27" (3/3) ... [2020-10-20 03:08:27,357 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2020-10-20 03:08:27,370 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:08:27,370 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:08:27,378 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:08:27,379 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:08:27,416 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,417 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,417 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,420 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,420 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,420 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,420 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,421 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,421 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,425 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,426 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,433 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,433 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,434 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,434 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,437 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,437 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,437 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,437 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:27,439 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:08:27,453 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:08:27,475 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:08:27,475 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:08:27,476 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:08:27,476 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:08:27,476 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:08:27,476 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:08:27,476 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:08:27,476 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:08:27,491 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:08:27,494 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-20 03:08:27,497 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-20 03:08:27,499 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-20 03:08:27,552 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-20 03:08:27,552 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:08:27,557 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-20 03:08:27,560 INFO L117 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-20 03:08:29,411 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-10-20 03:08:29,524 INFO L132 LiptonReduction]: Checked pairs total: 2658 [2020-10-20 03:08:29,524 INFO L134 LiptonReduction]: Total number of compositions: 68 [2020-10-20 03:08:29,531 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-20 03:08:29,562 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-20 03:08:29,564 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-20 03:08:29,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:08:29,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:29,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:29,574 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:29,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:29,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1479466227, now seen corresponding path program 1 times [2020-10-20 03:08:29,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:29,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315156865] [2020-10-20 03:08:29,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:29,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:29,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315156865] [2020-10-20 03:08:29,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:29,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:08:29,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645160517] [2020-10-20 03:08:29,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 03:08:29,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:29,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 03:08:29,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:08:29,792 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-20 03:08:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:29,825 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-20 03:08:29,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 03:08:29,826 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-20 03:08:29,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:29,845 INFO L225 Difference]: With dead ends: 362 [2020-10-20 03:08:29,845 INFO L226 Difference]: Without dead ends: 298 [2020-10-20 03:08:29,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:08:29,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-20 03:08:29,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-20 03:08:29,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-20 03:08:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-20 03:08:29,922 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-20 03:08:29,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:29,924 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-20 03:08:29,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 03:08:29,924 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-20 03:08:29,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:08:29,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:29,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:29,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:08:29,926 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:29,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:29,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1381176445, now seen corresponding path program 1 times [2020-10-20 03:08:29,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:29,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082539876] [2020-10-20 03:08:29,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:30,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:30,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082539876] [2020-10-20 03:08:30,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:30,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:08:30,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723504870] [2020-10-20 03:08:30,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:08:30,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:30,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:08:30,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:08:30,137 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-20 03:08:30,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:30,178 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-10-20 03:08:30,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:08:30,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-20 03:08:30,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:30,183 INFO L225 Difference]: With dead ends: 346 [2020-10-20 03:08:30,183 INFO L226 Difference]: Without dead ends: 282 [2020-10-20 03:08:30,184 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 [2020-10-20 03:08:30,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-20 03:08:30,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-20 03:08:30,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-20 03:08:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-10-20 03:08:30,210 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-10-20 03:08:30,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:30,211 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-10-20 03:08:30,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:08:30,211 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-10-20 03:08:30,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 03:08:30,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:30,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:30,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:08:30,214 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:30,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:30,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1310825236, now seen corresponding path program 1 times [2020-10-20 03:08:30,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:30,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11725288] [2020-10-20 03:08:30,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:30,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11725288] [2020-10-20 03:08:30,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:30,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:08:30,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903092208] [2020-10-20 03:08:30,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:08:30,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:30,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:08:30,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:08:30,304 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-10-20 03:08:30,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:30,344 INFO L93 Difference]: Finished difference Result 277 states and 699 transitions. [2020-10-20 03:08:30,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:08:30,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-20 03:08:30,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:30,347 INFO L225 Difference]: With dead ends: 277 [2020-10-20 03:08:30,348 INFO L226 Difference]: Without dead ends: 213 [2020-10-20 03:08:30,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:30,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-10-20 03:08:30,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2020-10-20 03:08:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-10-20 03:08:30,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 528 transitions. [2020-10-20 03:08:30,364 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 528 transitions. Word has length 10 [2020-10-20 03:08:30,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:30,364 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 528 transitions. [2020-10-20 03:08:30,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:08:30,365 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 528 transitions. [2020-10-20 03:08:30,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 03:08:30,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:30,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:30,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:08:30,367 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:30,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:30,368 INFO L82 PathProgramCache]: Analyzing trace with hash -346485744, now seen corresponding path program 1 times [2020-10-20 03:08:30,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:30,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456006435] [2020-10-20 03:08:30,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:30,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456006435] [2020-10-20 03:08:30,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:30,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:08:30,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392338244] [2020-10-20 03:08:30,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:08:30,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:30,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:08:30,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:30,448 INFO L87 Difference]: Start difference. First operand 213 states and 528 transitions. Second operand 5 states. [2020-10-20 03:08:30,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:30,520 INFO L93 Difference]: Finished difference Result 173 states and 387 transitions. [2020-10-20 03:08:30,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:08:30,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-20 03:08:30,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:30,522 INFO L225 Difference]: With dead ends: 173 [2020-10-20 03:08:30,522 INFO L226 Difference]: Without dead ends: 136 [2020-10-20 03:08:30,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:08:30,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-20 03:08:30,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-20 03:08:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-20 03:08:30,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-20 03:08:30,529 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-20 03:08:30,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:30,529 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-20 03:08:30,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:08:30,530 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-20 03:08:30,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 03:08:30,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:30,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:30,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:08:30,531 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:30,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:30,532 INFO L82 PathProgramCache]: Analyzing trace with hash 685431305, now seen corresponding path program 1 times [2020-10-20 03:08:30,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:30,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035249227] [2020-10-20 03:08:30,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:30,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:30,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035249227] [2020-10-20 03:08:30,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:30,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 03:08:30,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121642962] [2020-10-20 03:08:30,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:08:30,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:30,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:08:30,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:08:30,610 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 6 states. [2020-10-20 03:08:30,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:30,673 INFO L93 Difference]: Finished difference Result 119 states and 261 transitions. [2020-10-20 03:08:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 03:08:30,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 03:08:30,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:30,678 INFO L225 Difference]: With dead ends: 119 [2020-10-20 03:08:30,679 INFO L226 Difference]: Without dead ends: 109 [2020-10-20 03:08:30,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:08:30,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-20 03:08:30,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-20 03:08:30,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-20 03:08:30,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-20 03:08:30,685 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-20 03:08:30,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:30,685 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-20 03:08:30,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:08:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-20 03:08:30,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 03:08:30,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:30,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:30,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:08:30,690 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:30,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:30,692 INFO L82 PathProgramCache]: Analyzing trace with hash 461507696, now seen corresponding path program 1 times [2020-10-20 03:08:30,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:30,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531827399] [2020-10-20 03:08:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:30,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:30,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531827399] [2020-10-20 03:08:30,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:30,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:08:30,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968066690] [2020-10-20 03:08:30,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:08:30,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:30,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:08:30,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:08:30,816 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-20 03:08:30,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:30,839 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-20 03:08:30,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:08:30,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-20 03:08:30,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:30,841 INFO L225 Difference]: With dead ends: 135 [2020-10-20 03:08:30,841 INFO L226 Difference]: Without dead ends: 55 [2020-10-20 03:08:30,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:30,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-20 03:08:30,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-20 03:08:30,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-20 03:08:30,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-20 03:08:30,844 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-20 03:08:30,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:30,844 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-20 03:08:30,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:08:30,845 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-20 03:08:30,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 03:08:30,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:30,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:30,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:08:30,846 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:30,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:30,847 INFO L82 PathProgramCache]: Analyzing trace with hash 356647694, now seen corresponding path program 2 times [2020-10-20 03:08:30,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:30,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253616645] [2020-10-20 03:08:30,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:31,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253616645] [2020-10-20 03:08:31,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:31,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 03:08:31,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568495617] [2020-10-20 03:08:31,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 03:08:31,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:31,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 03:08:31,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-20 03:08:31,018 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 10 states. [2020-10-20 03:08:31,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:31,319 INFO L93 Difference]: Finished difference Result 87 states and 149 transitions. [2020-10-20 03:08:31,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 03:08:31,320 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-10-20 03:08:31,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:31,321 INFO L225 Difference]: With dead ends: 87 [2020-10-20 03:08:31,321 INFO L226 Difference]: Without dead ends: 63 [2020-10-20 03:08:31,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-10-20 03:08:31,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-20 03:08:31,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-10-20 03:08:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-20 03:08:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 102 transitions. [2020-10-20 03:08:31,326 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 102 transitions. Word has length 18 [2020-10-20 03:08:31,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:31,327 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 102 transitions. [2020-10-20 03:08:31,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 03:08:31,327 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 102 transitions. [2020-10-20 03:08:31,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 03:08:31,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:31,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:31,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 03:08:31,334 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:31,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:31,336 INFO L82 PathProgramCache]: Analyzing trace with hash -2018587562, now seen corresponding path program 3 times [2020-10-20 03:08:31,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:31,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319248451] [2020-10-20 03:08:31,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:31,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:31,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319248451] [2020-10-20 03:08:31,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:31,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 03:08:31,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934573746] [2020-10-20 03:08:31,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 03:08:31,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:31,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 03:08:31,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-20 03:08:31,516 INFO L87 Difference]: Start difference. First operand 59 states and 102 transitions. Second operand 10 states. [2020-10-20 03:08:31,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:31,632 INFO L93 Difference]: Finished difference Result 73 states and 119 transitions. [2020-10-20 03:08:31,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 03:08:31,633 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-10-20 03:08:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:31,634 INFO L225 Difference]: With dead ends: 73 [2020-10-20 03:08:31,634 INFO L226 Difference]: Without dead ends: 45 [2020-10-20 03:08:31,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-20 03:08:31,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-20 03:08:31,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2020-10-20 03:08:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 03:08:31,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-20 03:08:31,641 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-20 03:08:31,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:31,642 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-20 03:08:31,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 03:08:31,642 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-20 03:08:31,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 03:08:31,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:31,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:31,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 03:08:31,648 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:31,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:31,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1017008488, now seen corresponding path program 4 times [2020-10-20 03:08:31,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:31,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117037431] [2020-10-20 03:08:31,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:31,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:31,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117037431] [2020-10-20 03:08:31,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:31,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 03:08:31,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348214764] [2020-10-20 03:08:31,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 03:08:31,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:31,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 03:08:31,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-20 03:08:31,825 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 10 states. [2020-10-20 03:08:31,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:31,999 INFO L93 Difference]: Finished difference Result 49 states and 69 transitions. [2020-10-20 03:08:32,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 03:08:32,000 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-10-20 03:08:32,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:32,001 INFO L225 Difference]: With dead ends: 49 [2020-10-20 03:08:32,001 INFO L226 Difference]: Without dead ends: 27 [2020-10-20 03:08:32,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-10-20 03:08:32,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-20 03:08:32,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-20 03:08:32,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 03:08:32,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2020-10-20 03:08:32,004 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 18 [2020-10-20 03:08:32,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:32,005 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-20 03:08:32,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 03:08:32,005 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2020-10-20 03:08:32,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 03:08:32,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:32,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:32,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 03:08:32,006 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:32,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:32,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1533397848, now seen corresponding path program 5 times [2020-10-20 03:08:32,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:32,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323679543] [2020-10-20 03:08:32,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:32,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:32,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323679543] [2020-10-20 03:08:32,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:32,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 03:08:32,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416695604] [2020-10-20 03:08:32,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 03:08:32,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:32,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 03:08:32,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-20 03:08:32,128 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 10 states. [2020-10-20 03:08:32,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:32,213 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2020-10-20 03:08:32,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 03:08:32,213 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-10-20 03:08:32,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:32,214 INFO L225 Difference]: With dead ends: 26 [2020-10-20 03:08:32,214 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:08:32,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-20 03:08:32,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:08:32,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:08:32,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:08:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:08:32,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-20 03:08:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:32,216 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:08:32,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 03:08:32,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:08:32,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:08:32,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 03:08:32,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:08:32 BasicIcfg [2020-10-20 03:08:32,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:08:32,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:08:32,221 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:08:32,221 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:08:32,222 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:27" (3/4) ... [2020-10-20 03:08:32,226 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:08:32,233 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:08:32,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:08:32,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-20 03:08:32,239 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 03:08:32,240 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:08:32,240 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:08:32,240 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:08:32,290 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:08:32,290 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:08:32,292 INFO L168 Benchmark]: Toolchain (without parser) took 6375.83 ms. Allocated memory was 36.7 MB in the beginning and 86.5 MB in the end (delta: 49.8 MB). Free memory was 10.8 MB in the beginning and 38.9 MB in the end (delta: -28.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:32,293 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 36.2 MB. Free memory was 15.6 MB in the beginning and 15.6 MB in the end (delta: 50.4 kB). Peak memory consumption was 50.4 kB. Max. memory is 14.3 GB. [2020-10-20 03:08:32,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.31 ms. Allocated memory was 36.7 MB in the beginning and 46.7 MB in the end (delta: 10.0 MB). Free memory was 10.0 MB in the beginning and 21.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:32,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.41 ms. Allocated memory is still 46.7 MB. Free memory was 21.3 MB in the beginning and 19.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:32,295 INFO L168 Benchmark]: Boogie Preprocessor took 27.10 ms. Allocated memory is still 46.7 MB. Free memory was 19.3 MB in the beginning and 17.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:32,296 INFO L168 Benchmark]: RCFGBuilder took 506.48 ms. Allocated memory was 46.7 MB in the beginning and 47.2 MB in the end (delta: 524.3 kB). Free memory was 17.5 MB in the beginning and 12.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:32,297 INFO L168 Benchmark]: TraceAbstraction took 4870.84 ms. Allocated memory was 47.2 MB in the beginning and 86.5 MB in the end (delta: 39.3 MB). Free memory was 11.9 MB in the beginning and 42.8 MB in the end (delta: -30.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:32,298 INFO L168 Benchmark]: Witness Printer took 69.48 ms. Allocated memory is still 86.5 MB. Free memory was 42.8 MB in the beginning and 38.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:32,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 36.2 MB. Free memory was 15.6 MB in the beginning and 15.6 MB in the end (delta: 50.4 kB). Peak memory consumption was 50.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 838.31 ms. Allocated memory was 36.7 MB in the beginning and 46.7 MB in the end (delta: 10.0 MB). Free memory was 10.0 MB in the beginning and 21.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 50.41 ms. Allocated memory is still 46.7 MB. Free memory was 21.3 MB in the beginning and 19.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 27.10 ms. Allocated memory is still 46.7 MB. Free memory was 19.3 MB in the beginning and 17.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 506.48 ms. Allocated memory was 46.7 MB in the beginning and 47.2 MB in the end (delta: 524.3 kB). Free memory was 17.5 MB in the beginning and 12.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4870.84 ms. Allocated memory was 47.2 MB in the beginning and 86.5 MB in the end (delta: 39.3 MB). Free memory was 11.9 MB in the beginning and 42.8 MB in the end (delta: -30.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. * Witness Printer took 69.48 ms. Allocated memory is still 86.5 MB. Free memory was 42.8 MB in the beginning and 38.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 948 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 86 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2658 MoverChecksTotal - PositiveResult [Line: 17]: 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 216 SDtfs, 196 SDslu, 716 SDs, 0 SdLazy, 563 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 10 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 10170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...