./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c --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/product-lines/minepump_spec3_product34.cil.c -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 b803903b6771bf10a60266d9698f7c6b6489f5c7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:43:15,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:15,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:15,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:15,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:15,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:15,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:15,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:15,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:15,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:15,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:15,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:15,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:15,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:15,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:15,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:15,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:15,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:15,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:15,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:15,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:15,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:15,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:15,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:15,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:15,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:15,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:15,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:15,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:15,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:15,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:15,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:15,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:15,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:15,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:15,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:15,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:15,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:15,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:15,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:15,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:15,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:15,801 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:15,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:15,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:15,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:15,804 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:15,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:15,805 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:15,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:15,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:15,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:15,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:15,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:15,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:15,808 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:15,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:15,808 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:15,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:15,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:15,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:15,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:15,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:15,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:15,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:15,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:15,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:15,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:15,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:15,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:15,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:15,811 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 -> b803903b6771bf10a60266d9698f7c6b6489f5c7 [2020-10-20 01:43:16,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:16,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:16,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:16,098 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:16,099 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:16,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2020-10-20 01:43:16,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aca7c9ad/9006d2733a1047c8b875a33b68913ab3/FLAGa12fa5c2f [2020-10-20 01:43:16,786 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:16,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2020-10-20 01:43:16,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aca7c9ad/9006d2733a1047c8b875a33b68913ab3/FLAGa12fa5c2f [2020-10-20 01:43:17,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aca7c9ad/9006d2733a1047c8b875a33b68913ab3 [2020-10-20 01:43:17,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:17,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:17,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:17,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:17,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:17,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c712eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17, skipping insertion in model container [2020-10-20 01:43:17,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:17,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:17,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:17,576 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:17,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:17,713 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:17,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17 WrapperNode [2020-10-20 01:43:17,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:17,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:17,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:17,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:17,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:17,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:17,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:17,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:17,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:17,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:17,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:17,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:17,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17" (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 01:43:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:18,772 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:18,773 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-10-20 01:43:18,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:18 BoogieIcfgContainer [2020-10-20 01:43:18,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:18,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:18,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:18,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:18,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:17" (1/3) ... [2020-10-20 01:43:18,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441561ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:18, skipping insertion in model container [2020-10-20 01:43:18,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17" (2/3) ... [2020-10-20 01:43:18,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441561ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:18, skipping insertion in model container [2020-10-20 01:43:18,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:18" (3/3) ... [2020-10-20 01:43:18,784 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2020-10-20 01:43:18,796 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:18,805 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:18,819 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:18,847 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:18,847 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:18,847 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:18,848 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:18,848 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:18,848 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:18,848 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:18,848 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:18,868 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-10-20 01:43:18,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:18,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:18,877 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 01:43:18,878 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:18,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:18,887 INFO L82 PathProgramCache]: Analyzing trace with hash -2138991170, now seen corresponding path program 1 times [2020-10-20 01:43:18,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:18,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297347203] [2020-10-20 01:43:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,181 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 01:43:19,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297347203] [2020-10-20 01:43:19,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:19,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185266590] [2020-10-20 01:43:19,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:19,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:19,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:19,208 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2020-10-20 01:43:19,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,257 INFO L93 Difference]: Finished difference Result 165 states and 248 transitions. [2020-10-20 01:43:19,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:19,259 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:19,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,276 INFO L225 Difference]: With dead ends: 165 [2020-10-20 01:43:19,276 INFO L226 Difference]: Without dead ends: 80 [2020-10-20 01:43:19,281 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 01:43:19,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-20 01:43:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-20 01:43:19,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-20 01:43:19,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2020-10-20 01:43:19,357 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 18 [2020-10-20 01:43:19,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,358 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2020-10-20 01:43:19,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:19,359 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2020-10-20 01:43:19,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:19,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:19,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:19,362 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1244945373, now seen corresponding path program 1 times [2020-10-20 01:43:19,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842745382] [2020-10-20 01:43:19,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,512 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 01:43:19,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842745382] [2020-10-20 01:43:19,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:19,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430213884] [2020-10-20 01:43:19,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:19,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:19,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:19,517 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 3 states. [2020-10-20 01:43:19,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,529 INFO L93 Difference]: Finished difference Result 80 states and 114 transitions. [2020-10-20 01:43:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:19,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:19,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,531 INFO L225 Difference]: With dead ends: 80 [2020-10-20 01:43:19,531 INFO L226 Difference]: Without dead ends: 36 [2020-10-20 01:43:19,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:19,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-20 01:43:19,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-20 01:43:19,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-20 01:43:19,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-10-20 01:43:19,538 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2020-10-20 01:43:19,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,539 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-10-20 01:43:19,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:19,539 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-10-20 01:43:19,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:19,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:19,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:19,541 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,541 INFO L82 PathProgramCache]: Analyzing trace with hash 459341460, now seen corresponding path program 1 times [2020-10-20 01:43:19,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97649883] [2020-10-20 01:43:19,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,646 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 01:43:19,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97649883] [2020-10-20 01:43:19,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:19,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7991911] [2020-10-20 01:43:19,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:19,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:19,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:19,649 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2020-10-20 01:43:19,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,676 INFO L93 Difference]: Finished difference Result 66 states and 96 transitions. [2020-10-20 01:43:19,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:19,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:43:19,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,678 INFO L225 Difference]: With dead ends: 66 [2020-10-20 01:43:19,678 INFO L226 Difference]: Without dead ends: 36 [2020-10-20 01:43:19,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:19,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-20 01:43:19,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-20 01:43:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-20 01:43:19,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2020-10-20 01:43:19,684 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2020-10-20 01:43:19,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,684 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2020-10-20 01:43:19,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:19,685 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2020-10-20 01:43:19,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:43:19,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:19,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:19,686 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,687 INFO L82 PathProgramCache]: Analyzing trace with hash -179810352, now seen corresponding path program 1 times [2020-10-20 01:43:19,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648833103] [2020-10-20 01:43:19,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,748 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 01:43:19,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648833103] [2020-10-20 01:43:19,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:19,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585437921] [2020-10-20 01:43:19,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:19,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:19,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:19,751 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2020-10-20 01:43:19,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,797 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-10-20 01:43:19,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:19,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-20 01:43:19,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,799 INFO L225 Difference]: With dead ends: 89 [2020-10-20 01:43:19,799 INFO L226 Difference]: Without dead ends: 59 [2020-10-20 01:43:19,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:19,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-20 01:43:19,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2020-10-20 01:43:19,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 01:43:19,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 80 transitions. [2020-10-20 01:43:19,808 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 80 transitions. Word has length 25 [2020-10-20 01:43:19,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,808 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 80 transitions. [2020-10-20 01:43:19,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:19,808 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2020-10-20 01:43:19,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 01:43:19,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:19,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:19,810 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1667839457, now seen corresponding path program 1 times [2020-10-20 01:43:19,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805954116] [2020-10-20 01:43:19,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,876 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 01:43:19,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805954116] [2020-10-20 01:43:19,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:43:19,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716003948] [2020-10-20 01:43:19,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:19,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:19,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:19,879 INFO L87 Difference]: Start difference. First operand 57 states and 80 transitions. Second operand 5 states. [2020-10-20 01:43:19,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,956 INFO L93 Difference]: Finished difference Result 149 states and 209 transitions. [2020-10-20 01:43:19,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:43:19,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-20 01:43:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,958 INFO L225 Difference]: With dead ends: 149 [2020-10-20 01:43:19,959 INFO L226 Difference]: Without dead ends: 98 [2020-10-20 01:43:19,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:43:19,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-20 01:43:19,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 60. [2020-10-20 01:43:19,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 01:43:19,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2020-10-20 01:43:19,969 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 31 [2020-10-20 01:43:19,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,969 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2020-10-20 01:43:19,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2020-10-20 01:43:19,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 01:43:19,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:19,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:19,972 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,972 INFO L82 PathProgramCache]: Analyzing trace with hash 540443364, now seen corresponding path program 1 times [2020-10-20 01:43:19,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050935502] [2020-10-20 01:43:19,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:20,038 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 01:43:20,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050935502] [2020-10-20 01:43:20,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:20,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:20,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502725508] [2020-10-20 01:43:20,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:20,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:20,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:20,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:20,041 INFO L87 Difference]: Start difference. First operand 60 states and 83 transitions. Second operand 5 states. [2020-10-20 01:43:20,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:20,172 INFO L93 Difference]: Finished difference Result 314 states and 451 transitions. [2020-10-20 01:43:20,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:20,173 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-20 01:43:20,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:20,175 INFO L225 Difference]: With dead ends: 314 [2020-10-20 01:43:20,176 INFO L226 Difference]: Without dead ends: 260 [2020-10-20 01:43:20,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:20,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-20 01:43:20,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 106. [2020-10-20 01:43:20,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-20 01:43:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2020-10-20 01:43:20,193 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 31 [2020-10-20 01:43:20,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:20,193 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2020-10-20 01:43:20,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:20,194 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2020-10-20 01:43:20,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:43:20,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:20,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:20,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:43:20,198 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:20,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:20,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1572316506, now seen corresponding path program 1 times [2020-10-20 01:43:20,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:20,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635465470] [2020-10-20 01:43:20,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:20,250 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 01:43:20,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635465470] [2020-10-20 01:43:20,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:20,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:20,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151860113] [2020-10-20 01:43:20,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:43:20,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:20,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:43:20,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:43:20,252 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 4 states. [2020-10-20 01:43:20,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:20,402 INFO L93 Difference]: Finished difference Result 212 states and 295 transitions. [2020-10-20 01:43:20,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:43:20,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-20 01:43:20,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:20,405 INFO L225 Difference]: With dead ends: 212 [2020-10-20 01:43:20,405 INFO L226 Difference]: Without dead ends: 158 [2020-10-20 01:43:20,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:43:20,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-20 01:43:20,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 155. [2020-10-20 01:43:20,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-20 01:43:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 212 transitions. [2020-10-20 01:43:20,421 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 212 transitions. Word has length 32 [2020-10-20 01:43:20,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:20,422 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 212 transitions. [2020-10-20 01:43:20,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:43:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 212 transitions. [2020-10-20 01:43:20,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:43:20,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:20,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:20,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:43:20,424 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:20,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:20,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1711533540, now seen corresponding path program 1 times [2020-10-20 01:43:20,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:20,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90884484] [2020-10-20 01:43:20,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:20,472 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 01:43:20,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90884484] [2020-10-20 01:43:20,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:20,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:20,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913029671] [2020-10-20 01:43:20,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:43:20,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:20,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:43:20,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:43:20,474 INFO L87 Difference]: Start difference. First operand 155 states and 212 transitions. Second operand 4 states. [2020-10-20 01:43:20,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:20,530 INFO L93 Difference]: Finished difference Result 350 states and 487 transitions. [2020-10-20 01:43:20,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:43:20,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-20 01:43:20,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:20,532 INFO L225 Difference]: With dead ends: 350 [2020-10-20 01:43:20,532 INFO L226 Difference]: Without dead ends: 246 [2020-10-20 01:43:20,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 01:43:20,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-20 01:43:20,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 152. [2020-10-20 01:43:20,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-20 01:43:20,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 208 transitions. [2020-10-20 01:43:20,546 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 208 transitions. Word has length 32 [2020-10-20 01:43:20,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:20,547 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 208 transitions. [2020-10-20 01:43:20,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:43:20,547 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 208 transitions. [2020-10-20 01:43:20,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:43:20,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:20,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:20,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:43:20,549 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:20,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:20,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1197872225, now seen corresponding path program 1 times [2020-10-20 01:43:20,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:20,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969399782] [2020-10-20 01:43:20,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:20,604 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 01:43:20,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969399782] [2020-10-20 01:43:20,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:20,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:43:20,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360248445] [2020-10-20 01:43:20,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:43:20,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:20,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:43:20,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:43:20,606 INFO L87 Difference]: Start difference. First operand 152 states and 208 transitions. Second operand 6 states. [2020-10-20 01:43:20,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:20,865 INFO L93 Difference]: Finished difference Result 347 states and 484 transitions. [2020-10-20 01:43:20,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 01:43:20,866 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-20 01:43:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:20,867 INFO L225 Difference]: With dead ends: 347 [2020-10-20 01:43:20,867 INFO L226 Difference]: Without dead ends: 84 [2020-10-20 01:43:20,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:43:20,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-20 01:43:20,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 60. [2020-10-20 01:43:20,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 01:43:20,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2020-10-20 01:43:20,875 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 32 [2020-10-20 01:43:20,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:20,875 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2020-10-20 01:43:20,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:43:20,876 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2020-10-20 01:43:20,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:43:20,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:20,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:20,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:43:20,877 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:20,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:20,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1969698978, now seen corresponding path program 1 times [2020-10-20 01:43:20,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:20,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029373421] [2020-10-20 01:43:20,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:20,935 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 01:43:20,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029373421] [2020-10-20 01:43:20,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:20,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:43:20,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749378558] [2020-10-20 01:43:20,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:43:20,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:20,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:43:20,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:43:20,938 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand 6 states. [2020-10-20 01:43:21,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:21,009 INFO L93 Difference]: Finished difference Result 103 states and 128 transitions. [2020-10-20 01:43:21,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:43:21,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-20 01:43:21,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:21,011 INFO L225 Difference]: With dead ends: 103 [2020-10-20 01:43:21,011 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:43:21,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:43:21,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:43:21,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:43:21,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:43:21,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:43:21,013 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-10-20 01:43:21,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:21,013 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:43:21,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:43:21,014 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:43:21,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:43:21,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:43:21,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:43:21,608 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2020-10-20 01:43:21,863 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 21 [2020-10-20 01:43:22,018 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2020-10-20 01:43:22,114 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:22,115 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:43:22,115 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:43:22,115 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:43:22,115 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:43:22,115 INFO L274 CegarLoopResult]: For program point L87(lines 87 100) no Hoare annotation was computed. [2020-10-20 01:43:22,116 INFO L270 CegarLoopResult]: At program point L236(lines 236 242) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~2 0) .cse0 .cse2))) [2020-10-20 01:43:22,116 INFO L270 CegarLoopResult]: At program point L236-1(lines 236 242) the Hoare annotation is: false [2020-10-20 01:43:22,118 INFO L270 CegarLoopResult]: At program point L236-2(lines 236 242) the Hoare annotation is: false [2020-10-20 01:43:22,118 INFO L274 CegarLoopResult]: For program point L765(lines 765 778) no Hoare annotation was computed. [2020-10-20 01:43:22,119 INFO L270 CegarLoopResult]: At program point L765-1(lines 1 920) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 .cse0 .cse2))) [2020-10-20 01:43:22,119 INFO L274 CegarLoopResult]: For program point L765-2(lines 765 778) no Hoare annotation was computed. [2020-10-20 01:43:22,119 INFO L270 CegarLoopResult]: At program point L765-3(lines 1 920) the Hoare annotation is: false [2020-10-20 01:43:22,119 INFO L274 CegarLoopResult]: For program point L765-4(lines 765 778) no Hoare annotation was computed. [2020-10-20 01:43:22,119 INFO L270 CegarLoopResult]: At program point L765-5(lines 1 920) the Hoare annotation is: false [2020-10-20 01:43:22,119 INFO L270 CegarLoopResult]: At program point L881(lines 872 885) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-10-20 01:43:22,120 INFO L270 CegarLoopResult]: At program point L369(lines 354 372) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (.cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 (not .cse1) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4 (not .cse5)) (and (let ((.cse6 (= ~waterLevel~0 1))) (or (and .cse0 .cse6 .cse3 .cse4) (and .cse6 .cse5 .cse1 .cse3 .cse4))) .cse2))) [2020-10-20 01:43:22,120 INFO L270 CegarLoopResult]: At program point L881-1(lines 872 885) the Hoare annotation is: false [2020-10-20 01:43:22,120 INFO L270 CegarLoopResult]: At program point L369-1(lines 354 372) the Hoare annotation is: false [2020-10-20 01:43:22,120 INFO L270 CegarLoopResult]: At program point L881-2(lines 872 885) the Hoare annotation is: false [2020-10-20 01:43:22,120 INFO L270 CegarLoopResult]: At program point L369-2(lines 354 372) the Hoare annotation is: false [2020-10-20 01:43:22,121 INFO L270 CegarLoopResult]: At program point L105(lines 56 106) the Hoare annotation is: false [2020-10-20 01:43:22,121 INFO L274 CegarLoopResult]: For program point L799(lines 799 803) no Hoare annotation was computed. [2020-10-20 01:43:22,121 INFO L274 CegarLoopResult]: For program point L799-3(lines 799 803) no Hoare annotation was computed. [2020-10-20 01:43:22,123 INFO L274 CegarLoopResult]: For program point L799-6(lines 799 803) no Hoare annotation was computed. [2020-10-20 01:43:22,123 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:43:22,123 INFO L274 CegarLoopResult]: For program point L58(lines 57 104) no Hoare annotation was computed. [2020-10-20 01:43:22,124 INFO L270 CegarLoopResult]: At program point L917(lines 912 920) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:43:22,124 INFO L270 CegarLoopResult]: At program point L174(lines 170 176) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:43:22,124 INFO L270 CegarLoopResult]: At program point L868(lines 863 871) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~2 0) .cse0 .cse2 (= |ULTIMATE.start_getWaterLevel_#res| 1)))) [2020-10-20 01:43:22,125 INFO L270 CegarLoopResult]: At program point L868-1(lines 863 871) the Hoare annotation is: false [2020-10-20 01:43:22,125 INFO L270 CegarLoopResult]: At program point L868-2(lines 863 871) the Hoare annotation is: false [2020-10-20 01:43:22,125 INFO L274 CegarLoopResult]: For program point L769(lines 769 775) no Hoare annotation was computed. [2020-10-20 01:43:22,125 INFO L274 CegarLoopResult]: For program point L769-2(lines 769 775) no Hoare annotation was computed. [2020-10-20 01:43:22,125 INFO L274 CegarLoopResult]: For program point L769-4(lines 769 775) no Hoare annotation was computed. [2020-10-20 01:43:22,125 INFO L274 CegarLoopResult]: For program point L59(lines 59 63) no Hoare annotation was computed. [2020-10-20 01:43:22,125 INFO L270 CegarLoopResult]: At program point L125-2(lines 125 139) the Hoare annotation is: false [2020-10-20 01:43:22,125 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:22,126 INFO L270 CegarLoopResult]: At program point L836(lines 831 839) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~2 0) .cse0 .cse2))) [2020-10-20 01:43:22,126 INFO L270 CegarLoopResult]: At program point L836-1(lines 831 839) the Hoare annotation is: false [2020-10-20 01:43:22,126 INFO L270 CegarLoopResult]: At program point L836-2(lines 831 839) the Hoare annotation is: false [2020-10-20 01:43:22,126 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-20 01:43:22,126 INFO L277 CegarLoopResult]: At program point L209(lines 190 212) the Hoare annotation is: true [2020-10-20 01:43:22,126 INFO L274 CegarLoopResult]: For program point L77(lines 77 83) no Hoare annotation was computed. [2020-10-20 01:43:22,127 INFO L270 CegarLoopResult]: At program point L77-1(lines 77 83) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-10-20 01:43:22,127 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:43:22,127 INFO L274 CegarLoopResult]: For program point L788(line 788) no Hoare annotation was computed. [2020-10-20 01:43:22,127 INFO L274 CegarLoopResult]: For program point L788-1(line 788) no Hoare annotation was computed. [2020-10-20 01:43:22,127 INFO L274 CegarLoopResult]: For program point L788-2(line 788) no Hoare annotation was computed. [2020-10-20 01:43:22,127 INFO L274 CegarLoopResult]: For program point L95(lines 95 99) no Hoare annotation was computed. [2020-10-20 01:43:22,128 INFO L270 CegarLoopResult]: At program point L95-2(lines 229 235) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-10-20 01:43:22,128 INFO L274 CegarLoopResult]: For program point L261(lines 261 278) no Hoare annotation was computed. [2020-10-20 01:43:22,128 INFO L274 CegarLoopResult]: For program point L261-1(lines 261 278) no Hoare annotation was computed. [2020-10-20 01:43:22,128 INFO L274 CegarLoopResult]: For program point L261-2(lines 261 278) no Hoare annotation was computed. [2020-10-20 01:43:22,129 INFO L274 CegarLoopResult]: For program point L129(lines 129 133) no Hoare annotation was computed. [2020-10-20 01:43:22,129 INFO L274 CegarLoopResult]: For program point L129-1(lines 229 235) no Hoare annotation was computed. [2020-10-20 01:43:22,129 INFO L274 CegarLoopResult]: For program point L823(lines 823 827) no Hoare annotation was computed. [2020-10-20 01:43:22,129 INFO L270 CegarLoopResult]: At program point L229(lines 228 247) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-10-20 01:43:22,129 INFO L274 CegarLoopResult]: For program point L229-1(lines 229 235) no Hoare annotation was computed. [2020-10-20 01:43:22,130 INFO L270 CegarLoopResult]: At program point L229-2(lines 228 247) the Hoare annotation is: false [2020-10-20 01:43:22,130 INFO L270 CegarLoopResult]: At program point L229-3(lines 228 247) the Hoare annotation is: false [2020-10-20 01:43:22,130 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:43:22,131 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:22,132 INFO L274 CegarLoopResult]: For program point L759(lines 759 779) no Hoare annotation was computed. [2020-10-20 01:43:22,132 INFO L274 CegarLoopResult]: For program point L759-2(lines 759 779) no Hoare annotation was computed. [2020-10-20 01:43:22,132 INFO L274 CegarLoopResult]: For program point L759-4(lines 759 779) no Hoare annotation was computed. [2020-10-20 01:43:22,132 INFO L274 CegarLoopResult]: For program point L363(lines 363 367) no Hoare annotation was computed. [2020-10-20 01:43:22,132 INFO L274 CegarLoopResult]: For program point L363-2(lines 363 367) no Hoare annotation was computed. [2020-10-20 01:43:22,133 INFO L274 CegarLoopResult]: For program point L363-3(lines 363 367) no Hoare annotation was computed. [2020-10-20 01:43:22,133 INFO L274 CegarLoopResult]: For program point L363-5(lines 363 367) no Hoare annotation was computed. [2020-10-20 01:43:22,133 INFO L274 CegarLoopResult]: For program point L363-6(lines 363 367) no Hoare annotation was computed. [2020-10-20 01:43:22,133 INFO L274 CegarLoopResult]: For program point L363-8(lines 363 367) no Hoare annotation was computed. [2020-10-20 01:43:22,133 INFO L270 CegarLoopResult]: At program point L314(lines 309 317) the Hoare annotation is: (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not (= ~pumpRunning~0 0)) (= 1 ~systemActive~0) (not (= |ULTIMATE.start_isPumpRunning_#res| 0)) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:43:22,133 INFO L270 CegarLoopResult]: At program point L314-1(lines 309 317) the Hoare annotation is: false [2020-10-20 01:43:22,133 INFO L270 CegarLoopResult]: At program point L314-2(lines 309 317) the Hoare annotation is: false [2020-10-20 01:43:22,134 INFO L270 CegarLoopResult]: At program point L909(lines 1 920) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:43:22,134 INFO L274 CegarLoopResult]: For program point L876(lines 876 882) no Hoare annotation was computed. [2020-10-20 01:43:22,134 INFO L274 CegarLoopResult]: For program point L876-1(lines 876 882) no Hoare annotation was computed. [2020-10-20 01:43:22,135 INFO L274 CegarLoopResult]: For program point L876-2(lines 876 882) no Hoare annotation was computed. [2020-10-20 01:43:22,135 INFO L274 CegarLoopResult]: For program point L265(lines 265 273) no Hoare annotation was computed. [2020-10-20 01:43:22,135 INFO L274 CegarLoopResult]: For program point L265-1(lines 265 273) no Hoare annotation was computed. [2020-10-20 01:43:22,135 INFO L274 CegarLoopResult]: For program point L265-2(lines 265 273) no Hoare annotation was computed. [2020-10-20 01:43:22,135 INFO L274 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2020-10-20 01:43:22,135 INFO L270 CegarLoopResult]: At program point L67-1(lines 67 73) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-10-20 01:43:22,135 INFO L274 CegarLoopResult]: For program point L811(lines 811 815) no Hoare annotation was computed. [2020-10-20 01:43:22,135 INFO L274 CegarLoopResult]: For program point L200(lines 200 207) no Hoare annotation was computed. [2020-10-20 01:43:22,136 INFO L277 CegarLoopResult]: At program point L200-1(lines 200 207) the Hoare annotation is: true [2020-10-20 01:43:22,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:22 BoogieIcfgContainer [2020-10-20 01:43:22,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:22,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:22,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:22,187 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:22,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:18" (3/4) ... [2020-10-20 01:43:22,202 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:43:22,233 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:43:22,234 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:43:22,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:43:22,236 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:43:22,237 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:43:22,237 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:43:22,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:43:22,281 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-20 01:43:22,281 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || (((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:43:22,282 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 0 && !(\result == 0)) && \result == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((tmp == 0 && waterLevel == 1) && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) && 1 == systemActive) [2020-10-20 01:43:22,287 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && !(\result == 0)) && splverifierCounter == 0 [2020-10-20 01:43:22,391 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:22,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:22,395 INFO L168 Benchmark]: Toolchain (without parser) took 5283.02 ms. Allocated memory was 40.9 MB in the beginning and 70.8 MB in the end (delta: 29.9 MB). Free memory was 18.3 MB in the beginning and 29.4 MB in the end (delta: -11.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:22,396 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 31.5 MB. Free memory was 7.7 MB in the beginning and 7.6 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:22,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.44 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 17.5 MB in the beginning and 19.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 8.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:22,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.68 ms. Allocated memory is still 43.0 MB. Free memory was 19.7 MB in the beginning and 16.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:22,398 INFO L168 Benchmark]: Boogie Preprocessor took 39.89 ms. Allocated memory is still 43.0 MB. Free memory was 16.5 MB in the beginning and 13.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:22,398 INFO L168 Benchmark]: RCFGBuilder took 953.07 ms. Allocated memory was 43.0 MB in the beginning and 48.2 MB in the end (delta: 5.2 MB). Free memory was 13.9 MB in the beginning and 28.4 MB in the end (delta: -14.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:22,399 INFO L168 Benchmark]: TraceAbstraction took 3409.98 ms. Allocated memory was 48.2 MB in the beginning and 70.8 MB in the end (delta: 22.5 MB). Free memory was 28.0 MB in the beginning and 39.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 42.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:22,399 INFO L168 Benchmark]: Witness Printer took 205.43 ms. Allocated memory is still 70.8 MB. Free memory was 39.8 MB in the beginning and 29.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:22,402 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 31.5 MB. Free memory was 7.7 MB in the beginning and 7.6 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 597.44 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 17.5 MB in the beginning and 19.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 8.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 66.68 ms. Allocated memory is still 43.0 MB. Free memory was 19.7 MB in the beginning and 16.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 39.89 ms. Allocated memory is still 43.0 MB. Free memory was 16.5 MB in the beginning and 13.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 953.07 ms. Allocated memory was 43.0 MB in the beginning and 48.2 MB in the end (delta: 5.2 MB). Free memory was 13.9 MB in the beginning and 28.4 MB in the end (delta: -14.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3409.98 ms. Allocated memory was 48.2 MB in the beginning and 70.8 MB in the end (delta: 22.5 MB). Free memory was 28.0 MB in the beginning and 39.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 42.3 MB. Max. memory is 14.3 GB. * Witness Printer took 205.43 ms. Allocated memory is still 70.8 MB. Free memory was 39.8 MB in the beginning and 29.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || (((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 912]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: (((((((tmp == 0 && !(\result == 0)) && \result == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((tmp == 0 && waterLevel == 1) && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) && 1 == systemActive) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && !(\result == 0)) && splverifierCounter == 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || ((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || ((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 748 SDtfs, 767 SDslu, 993 SDs, 0 SdLazy, 160 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=7, 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, 315 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 34 PreInvPairs, 99 NumberOfFragments, 448 HoareAnnotationTreeSize, 34 FomulaSimplifications, 8552 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 34 FomulaSimplificationsInter, 448 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 12512 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...