./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product33.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_product33.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 7c9c699b8f4baa8342fdac40487e4f330549e95c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:43:15,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:15,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:15,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:15,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:15,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:15,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:15,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:15,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:15,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:15,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:15,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:15,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:15,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:15,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:15,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:15,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:15,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:15,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:15,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:15,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:15,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:15,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:15,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:15,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:15,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:15,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:15,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:15,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:15,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:15,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:15,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:15,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:15,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:15,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:15,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:15,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:15,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:15,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:15,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:15,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:15,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:15,743 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:15,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:15,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:15,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:15,745 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:15,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:15,746 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:15,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:15,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:15,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:15,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:15,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:15,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:15,747 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:15,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:15,748 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:15,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:15,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:15,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:15,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:15,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:15,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:15,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:15,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:15,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:15,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:15,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:15,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:15,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:15,751 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 -> 7c9c699b8f4baa8342fdac40487e4f330549e95c [2020-10-20 01:43:15,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:15,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:15,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:15,974 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:15,974 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:15,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2020-10-20 01:43:16,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bdcbc4af/4f7adc943e8243348d01bb69663c9d6f/FLAG0e17ce1b0 [2020-10-20 01:43:16,583 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:16,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2020-10-20 01:43:16,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bdcbc4af/4f7adc943e8243348d01bb69663c9d6f/FLAG0e17ce1b0 [2020-10-20 01:43:16,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bdcbc4af/4f7adc943e8243348d01bb69663c9d6f [2020-10-20 01:43:16,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:16,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:16,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:16,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:16,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:16,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:16" (1/1) ... [2020-10-20 01:43:16,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@179e65ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:16, skipping insertion in model container [2020-10-20 01:43:16,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:16" (1/1) ... [2020-10-20 01:43:16,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:16,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:17,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:17,381 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:17,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:17,515 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:17,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17 WrapperNode [2020-10-20 01:43:17,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:17,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:17,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:17,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:17,523 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 01:43:17,541 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 01:43:17,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:17,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:17,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:17,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:17,597 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 01:43:17,597 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 01:43:17,604 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 01:43:17,604 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 01:43:17,615 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 01:43:17,623 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 01:43:17,626 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 01:43:17,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:17,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:17,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:17,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:17,632 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 01:43:17,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:18,531 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:18,532 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-10-20 01:43:18,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:18 BoogieIcfgContainer [2020-10-20 01:43:18,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:18,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:18,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:18,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:18,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:16" (1/3) ... [2020-10-20 01:43:18,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c503670 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 01:43:18,541 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 01:43:18,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c503670 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 01:43:18,542 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 01:43:18,544 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2020-10-20 01:43:18,564 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:18,572 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:18,586 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:18,613 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:18,614 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:18,614 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:18,614 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:18,615 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:18,615 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:18,615 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:18,615 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:18,634 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-10-20 01:43:18,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:18,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:18,644 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 01:43:18,645 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:18,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:18,651 INFO L82 PathProgramCache]: Analyzing trace with hash -997969315, now seen corresponding path program 1 times [2020-10-20 01:43:18,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:18,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398600503] [2020-10-20 01:43:18,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:18,918 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 01:43:18,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398600503] [2020-10-20 01:43:18,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:18,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:18,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300923982] [2020-10-20 01:43:18,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:18,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:18,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:18,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:18,938 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2020-10-20 01:43:18,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:18,981 INFO L93 Difference]: Finished difference Result 165 states and 248 transitions. [2020-10-20 01:43:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:18,983 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:18,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:18,995 INFO L225 Difference]: With dead ends: 165 [2020-10-20 01:43:18,995 INFO L226 Difference]: Without dead ends: 80 [2020-10-20 01:43:18,999 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 01:43:19,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-20 01:43:19,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-20 01:43:19,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-20 01:43:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2020-10-20 01:43:19,039 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 18 [2020-10-20 01:43:19,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,040 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2020-10-20 01:43:19,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2020-10-20 01:43:19,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:19,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,041 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 01:43:19,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:19,042 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1909000068, now seen corresponding path program 1 times [2020-10-20 01:43:19,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747938889] [2020-10-20 01:43:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,142 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 01:43:19,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747938889] [2020-10-20 01:43:19,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:19,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949461746] [2020-10-20 01:43:19,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:19,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:19,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:19,146 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 3 states. [2020-10-20 01:43:19,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,157 INFO L93 Difference]: Finished difference Result 80 states and 114 transitions. [2020-10-20 01:43:19,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:19,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:19,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,159 INFO L225 Difference]: With dead ends: 80 [2020-10-20 01:43:19,159 INFO L226 Difference]: Without dead ends: 36 [2020-10-20 01:43:19,160 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 01:43:19,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-20 01:43:19,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-20 01:43:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-20 01:43:19,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-10-20 01:43:19,166 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2020-10-20 01:43:19,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,166 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-10-20 01:43:19,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:19,167 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-10-20 01:43:19,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:19,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,168 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 01:43:19,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:19,168 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,169 INFO L82 PathProgramCache]: Analyzing trace with hash -196588044, now seen corresponding path program 1 times [2020-10-20 01:43:19,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446112394] [2020-10-20 01:43:19,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,339 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 01:43:19,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446112394] [2020-10-20 01:43:19,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:19,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353632654] [2020-10-20 01:43:19,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:19,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:19,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:19,341 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2020-10-20 01:43:19,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,351 INFO L93 Difference]: Finished difference Result 66 states and 96 transitions. [2020-10-20 01:43:19,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:19,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:43:19,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,353 INFO L225 Difference]: With dead ends: 66 [2020-10-20 01:43:19,353 INFO L226 Difference]: Without dead ends: 36 [2020-10-20 01:43:19,354 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 01:43:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-20 01:43:19,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-20 01:43:19,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-20 01:43:19,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2020-10-20 01:43:19,360 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2020-10-20 01:43:19,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,360 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2020-10-20 01:43:19,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:19,360 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2020-10-20 01:43:19,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [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, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:19,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:19,362 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,362 INFO L82 PathProgramCache]: Analyzing trace with hash 961211503, now seen corresponding path program 1 times [2020-10-20 01:43:19,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586834280] [2020-10-20 01:43:19,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,412 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 01:43:19,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586834280] [2020-10-20 01:43:19,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:19,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288353009] [2020-10-20 01:43:19,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:19,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:19,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:19,415 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2020-10-20 01:43:19,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,454 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-10-20 01:43:19,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:19,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-20 01:43:19,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,455 INFO L225 Difference]: With dead ends: 89 [2020-10-20 01:43:19,456 INFO L226 Difference]: Without dead ends: 59 [2020-10-20 01:43:19,456 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 01:43:19,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-20 01:43:19,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2020-10-20 01:43:19,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 01:43:19,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 80 transitions. [2020-10-20 01:43:19,465 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 80 transitions. Word has length 25 [2020-10-20 01:43:19,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,466 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 80 transitions. [2020-10-20 01:43:19,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:19,466 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2020-10-20 01:43:19,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 01:43:19,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,467 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 01:43:19,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:19,468 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1128412896, now seen corresponding path program 1 times [2020-10-20 01:43:19,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602024889] [2020-10-20 01:43:19,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,571 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 01:43:19,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602024889] [2020-10-20 01:43:19,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:43:19,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769943194] [2020-10-20 01:43:19,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:19,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:19,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:19,574 INFO L87 Difference]: Start difference. First operand 57 states and 80 transitions. Second operand 5 states. [2020-10-20 01:43:19,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,631 INFO L93 Difference]: Finished difference Result 149 states and 209 transitions. [2020-10-20 01:43:19,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:43:19,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-20 01:43:19,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,633 INFO L225 Difference]: With dead ends: 149 [2020-10-20 01:43:19,633 INFO L226 Difference]: Without dead ends: 98 [2020-10-20 01:43:19,634 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 01:43:19,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-20 01:43:19,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 60. [2020-10-20 01:43:19,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 01:43:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2020-10-20 01:43:19,643 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 31 [2020-10-20 01:43:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,644 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2020-10-20 01:43:19,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2020-10-20 01:43:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 01:43:19,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,645 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 01:43:19,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:19,646 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1016803, now seen corresponding path program 1 times [2020-10-20 01:43:19,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630463950] [2020-10-20 01:43:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,739 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 01:43:19,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630463950] [2020-10-20 01:43:19,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:19,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842555528] [2020-10-20 01:43:19,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:19,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:19,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:19,742 INFO L87 Difference]: Start difference. First operand 60 states and 83 transitions. Second operand 5 states. [2020-10-20 01:43:19,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,869 INFO L93 Difference]: Finished difference Result 314 states and 451 transitions. [2020-10-20 01:43:19,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:19,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-20 01:43:19,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,873 INFO L225 Difference]: With dead ends: 314 [2020-10-20 01:43:19,873 INFO L226 Difference]: Without dead ends: 260 [2020-10-20 01:43:19,874 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 01:43:19,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-20 01:43:19,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 106. [2020-10-20 01:43:19,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-20 01:43:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2020-10-20 01:43:19,893 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 31 [2020-10-20 01:43:19,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,894 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2020-10-20 01:43:19,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:19,894 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2020-10-20 01:43:19,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:43:19,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,896 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 01:43:19,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:43:19,896 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,897 INFO L82 PathProgramCache]: Analyzing trace with hash -2111743067, now seen corresponding path program 1 times [2020-10-20 01:43:19,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142681101] [2020-10-20 01:43:19,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,950 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 01:43:19,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142681101] [2020-10-20 01:43:19,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:19,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881683999] [2020-10-20 01:43:19,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:43:19,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:43:19,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:43:19,953 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 4 states. [2020-10-20 01:43:20,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:20,062 INFO L93 Difference]: Finished difference Result 212 states and 295 transitions. [2020-10-20 01:43:20,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:43:20,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-20 01:43:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:20,065 INFO L225 Difference]: With dead ends: 212 [2020-10-20 01:43:20,065 INFO L226 Difference]: Without dead ends: 158 [2020-10-20 01:43:20,066 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 01:43:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-20 01:43:20,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 155. [2020-10-20 01:43:20,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-20 01:43:20,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 212 transitions. [2020-10-20 01:43:20,086 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 212 transitions. Word has length 32 [2020-10-20 01:43:20,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:20,086 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 212 transitions. [2020-10-20 01:43:20,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:43:20,087 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 212 transitions. [2020-10-20 01:43:20,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:43:20,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:20,088 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 01:43:20,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:43:20,089 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:20,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:20,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1172106979, now seen corresponding path program 1 times [2020-10-20 01:43:20,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:20,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060941125] [2020-10-20 01:43:20,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:20,134 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 01:43:20,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060941125] [2020-10-20 01:43:20,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:20,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:20,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604747287] [2020-10-20 01:43:20,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:43:20,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:20,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:43:20,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:43:20,136 INFO L87 Difference]: Start difference. First operand 155 states and 212 transitions. Second operand 4 states. [2020-10-20 01:43:20,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:20,176 INFO L93 Difference]: Finished difference Result 350 states and 487 transitions. [2020-10-20 01:43:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:43:20,177 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-20 01:43:20,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:20,179 INFO L225 Difference]: With dead ends: 350 [2020-10-20 01:43:20,179 INFO L226 Difference]: Without dead ends: 246 [2020-10-20 01:43:20,180 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 01:43:20,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-20 01:43:20,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 152. [2020-10-20 01:43:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-20 01:43:20,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 208 transitions. [2020-10-20 01:43:20,216 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 208 transitions. Word has length 32 [2020-10-20 01:43:20,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:20,217 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 208 transitions. [2020-10-20 01:43:20,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:43:20,217 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 208 transitions. [2020-10-20 01:43:20,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:43:20,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:20,219 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 01:43:20,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:43:20,220 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:20,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1737298786, now seen corresponding path program 1 times [2020-10-20 01:43:20,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:20,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587590764] [2020-10-20 01:43:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:20,275 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 01:43:20,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587590764] [2020-10-20 01:43:20,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:20,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:43:20,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499153324] [2020-10-20 01:43:20,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:20,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:20,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:20,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:20,278 INFO L87 Difference]: Start difference. First operand 152 states and 208 transitions. Second operand 5 states. [2020-10-20 01:43:20,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:20,390 INFO L93 Difference]: Finished difference Result 325 states and 456 transitions. [2020-10-20 01:43:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:43:20,391 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-20 01:43:20,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:20,392 INFO L225 Difference]: With dead ends: 325 [2020-10-20 01:43:20,392 INFO L226 Difference]: Without dead ends: 63 [2020-10-20 01:43:20,393 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 01:43:20,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-20 01:43:20,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2020-10-20 01:43:20,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 01:43:20,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2020-10-20 01:43:20,409 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 32 [2020-10-20 01:43:20,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:20,409 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2020-10-20 01:43:20,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:20,409 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2020-10-20 01:43:20,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 01:43:20,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:20,414 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 01:43:20,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:43:20,414 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:20,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:20,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1430272417, now seen corresponding path program 1 times [2020-10-20 01:43:20,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:20,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251770815] [2020-10-20 01:43:20,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:20,508 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 01:43:20,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251770815] [2020-10-20 01:43:20,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:20,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:43:20,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615443389] [2020-10-20 01:43:20,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:43:20,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:20,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:43:20,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:43:20,510 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand 6 states. [2020-10-20 01:43:20,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:20,557 INFO L93 Difference]: Finished difference Result 103 states and 128 transitions. [2020-10-20 01:43:20,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:43:20,558 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-20 01:43:20,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:20,558 INFO L225 Difference]: With dead ends: 103 [2020-10-20 01:43:20,558 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:43:20,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 01:43:20,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:43:20,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:43:20,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:43:20,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:43:20,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-10-20 01:43:20,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:20,560 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:43:20,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:43:20,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:43:20,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:43:20,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:43:20,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:43:21,151 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:21,151 INFO L270 CegarLoopResult]: At program point L696(lines 695 714) 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 .cse0 (= ~pumpRunning~0 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-10-20 01:43:21,152 INFO L274 CegarLoopResult]: For program point L696-1(lines 696 702) no Hoare annotation was computed. [2020-10-20 01:43:21,152 INFO L270 CegarLoopResult]: At program point L696-2(lines 695 714) the Hoare annotation is: false [2020-10-20 01:43:21,152 INFO L270 CegarLoopResult]: At program point L696-3(lines 695 714) the Hoare annotation is: false [2020-10-20 01:43:21,152 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:43:21,152 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:43:21,152 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:43:21,152 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:43:21,152 INFO L274 CegarLoopResult]: For program point L631(lines 630 675) no Hoare annotation was computed. [2020-10-20 01:43:21,153 INFO L274 CegarLoopResult]: For program point L615(line 615) no Hoare annotation was computed. [2020-10-20 01:43:21,153 INFO L274 CegarLoopResult]: For program point L615-1(line 615) no Hoare annotation was computed. [2020-10-20 01:43:21,153 INFO L274 CegarLoopResult]: For program point L615-2(line 615) no Hoare annotation was computed. [2020-10-20 01:43:21,153 INFO L274 CegarLoopResult]: For program point L830(lines 830 834) no Hoare annotation was computed. [2020-10-20 01:43:21,153 INFO L274 CegarLoopResult]: For program point L830-2(lines 830 834) no Hoare annotation was computed. [2020-10-20 01:43:21,153 INFO L274 CegarLoopResult]: For program point L830-3(lines 830 834) no Hoare annotation was computed. [2020-10-20 01:43:21,153 INFO L274 CegarLoopResult]: For program point L830-5(lines 830 834) no Hoare annotation was computed. [2020-10-20 01:43:21,153 INFO L274 CegarLoopResult]: For program point L632(lines 632 636) no Hoare annotation was computed. [2020-10-20 01:43:21,154 INFO L274 CegarLoopResult]: For program point L830-6(lines 830 834) no Hoare annotation was computed. [2020-10-20 01:43:21,154 INFO L274 CegarLoopResult]: For program point L830-8(lines 830 834) no Hoare annotation was computed. [2020-10-20 01:43:21,154 INFO L270 CegarLoopResult]: At program point L781(lines 776 784) the Hoare annotation is: (and (= ~pumpRunning~0 1) (= 1 ~systemActive~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isPumpRunning_#res| 1)) [2020-10-20 01:43:21,154 INFO L270 CegarLoopResult]: At program point L781-1(lines 776 784) the Hoare annotation is: false [2020-10-20 01:43:21,154 INFO L270 CegarLoopResult]: At program point L781-2(lines 776 784) the Hoare annotation is: false [2020-10-20 01:43:21,155 INFO L270 CegarLoopResult]: At program point L137(lines 128 141) 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 01:43:21,155 INFO L270 CegarLoopResult]: At program point L137-1(lines 128 141) the Hoare annotation is: false [2020-10-20 01:43:21,155 INFO L270 CegarLoopResult]: At program point L137-2(lines 128 141) the Hoare annotation is: false [2020-10-20 01:43:21,155 INFO L270 CegarLoopResult]: At program point L897(lines 1 908) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:43:21,155 INFO L274 CegarLoopResult]: For program point L732(lines 732 740) no Hoare annotation was computed. [2020-10-20 01:43:21,155 INFO L274 CegarLoopResult]: For program point L732-1(lines 732 740) no Hoare annotation was computed. [2020-10-20 01:43:21,155 INFO L274 CegarLoopResult]: For program point L666(lines 666 670) no Hoare annotation was computed. [2020-10-20 01:43:21,155 INFO L274 CegarLoopResult]: For program point L732-2(lines 732 740) no Hoare annotation was computed. [2020-10-20 01:43:21,156 INFO L274 CegarLoopResult]: For program point L666-2(lines 696 702) no Hoare annotation was computed. [2020-10-20 01:43:21,156 INFO L274 CegarLoopResult]: For program point L55(lines 55 59) no Hoare annotation was computed. [2020-10-20 01:43:21,156 INFO L274 CegarLoopResult]: For program point L55-3(lines 55 59) no Hoare annotation was computed. [2020-10-20 01:43:21,156 INFO L274 CegarLoopResult]: For program point L55-6(lines 55 59) no Hoare annotation was computed. [2020-10-20 01:43:21,156 INFO L270 CegarLoopResult]: At program point L204(lines 200 206) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:43:21,156 INFO L274 CegarLoopResult]: For program point L650(lines 650 656) no Hoare annotation was computed. [2020-10-20 01:43:21,157 INFO L270 CegarLoopResult]: At program point L650-1(lines 650 656) 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 .cse0 (= ~pumpRunning~0 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-10-20 01:43:21,157 INFO L270 CegarLoopResult]: At program point L155-2(lines 155 169) the Hoare annotation is: false [2020-10-20 01:43:21,157 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-20 01:43:21,157 INFO L274 CegarLoopResult]: For program point L850(lines 850 870) no Hoare annotation was computed. [2020-10-20 01:43:21,157 INFO L274 CegarLoopResult]: For program point L850-2(lines 850 870) no Hoare annotation was computed. [2020-10-20 01:43:21,157 INFO L274 CegarLoopResult]: For program point L850-4(lines 850 870) no Hoare annotation was computed. [2020-10-20 01:43:21,157 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:43:21,158 INFO L270 CegarLoopResult]: At program point L124(lines 119 127) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 1) .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1 (= |ULTIMATE.start_getWaterLevel_#res| 1) (= ULTIMATE.start_processEnvironment_~tmp~5 0)))) [2020-10-20 01:43:21,158 INFO L270 CegarLoopResult]: At program point L124-1(lines 119 127) the Hoare annotation is: false [2020-10-20 01:43:21,158 INFO L270 CegarLoopResult]: At program point L124-2(lines 119 127) the Hoare annotation is: false [2020-10-20 01:43:21,158 INFO L277 CegarLoopResult]: At program point L240(lines 221 243) the Hoare annotation is: true [2020-10-20 01:43:21,158 INFO L270 CegarLoopResult]: At program point L703(lines 703 709) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~5 0)) (and .cse0 (= ~pumpRunning~0 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse1))) [2020-10-20 01:43:21,159 INFO L270 CegarLoopResult]: At program point L703-1(lines 703 709) the Hoare annotation is: false [2020-10-20 01:43:21,159 INFO L270 CegarLoopResult]: At program point L703-2(lines 703 709) the Hoare annotation is: false [2020-10-20 01:43:21,159 INFO L270 CegarLoopResult]: At program point L92(lines 87 95) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 1) .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~5 0)))) [2020-10-20 01:43:21,159 INFO L270 CegarLoopResult]: At program point L92-1(lines 87 95) the Hoare annotation is: false [2020-10-20 01:43:21,159 INFO L270 CegarLoopResult]: At program point L92-2(lines 87 95) the Hoare annotation is: false [2020-10-20 01:43:21,159 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:21,160 INFO L270 CegarLoopResult]: At program point L836(lines 821 839) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0)) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not .cse0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 (not .cse5)) (and .cse1 (let ((.cse6 (= ~waterLevel~0 1))) (or (and .cse6 .cse2 .cse3 .cse4) (and .cse6 .cse5 .cse0 .cse3 .cse4)))))) [2020-10-20 01:43:21,160 INFO L270 CegarLoopResult]: At program point L836-1(lines 821 839) the Hoare annotation is: false [2020-10-20 01:43:21,160 INFO L270 CegarLoopResult]: At program point L836-2(lines 821 839) the Hoare annotation is: false [2020-10-20 01:43:21,160 INFO L274 CegarLoopResult]: For program point L159(lines 159 163) no Hoare annotation was computed. [2020-10-20 01:43:21,160 INFO L274 CegarLoopResult]: For program point L159-1(lines 696 702) no Hoare annotation was computed. [2020-10-20 01:43:21,160 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:43:21,160 INFO L274 CegarLoopResult]: For program point L640(lines 640 646) no Hoare annotation was computed. [2020-10-20 01:43:21,161 INFO L270 CegarLoopResult]: At program point L640-1(lines 640 646) 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 .cse0 (= ~pumpRunning~0 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-10-20 01:43:21,161 INFO L274 CegarLoopResult]: For program point L79(lines 79 83) no Hoare annotation was computed. [2020-10-20 01:43:21,161 INFO L270 CegarLoopResult]: At program point L905(lines 900 908) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:43:21,161 INFO L274 CegarLoopResult]: For program point L856(lines 856 869) no Hoare annotation was computed. [2020-10-20 01:43:21,161 INFO L270 CegarLoopResult]: At program point L856-1(lines 1 908) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 1) .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2020-10-20 01:43:21,161 INFO L274 CegarLoopResult]: For program point L856-2(lines 856 869) no Hoare annotation was computed. [2020-10-20 01:43:21,162 INFO L270 CegarLoopResult]: At program point L856-3(lines 1 908) the Hoare annotation is: false [2020-10-20 01:43:21,162 INFO L274 CegarLoopResult]: For program point L856-4(lines 856 869) no Hoare annotation was computed. [2020-10-20 01:43:21,162 INFO L270 CegarLoopResult]: At program point L856-5(lines 1 908) the Hoare annotation is: false [2020-10-20 01:43:21,162 INFO L270 CegarLoopResult]: At program point L676(lines 629 677) the Hoare annotation is: false [2020-10-20 01:43:21,162 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:43:21,162 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:21,162 INFO L274 CegarLoopResult]: For program point L660(lines 660 671) no Hoare annotation was computed. [2020-10-20 01:43:21,163 INFO L274 CegarLoopResult]: For program point L231(lines 231 238) no Hoare annotation was computed. [2020-10-20 01:43:21,163 INFO L277 CegarLoopResult]: At program point L231-1(lines 231 238) the Hoare annotation is: true [2020-10-20 01:43:21,163 INFO L274 CegarLoopResult]: For program point L132(lines 132 138) no Hoare annotation was computed. [2020-10-20 01:43:21,163 INFO L274 CegarLoopResult]: For program point L132-1(lines 132 138) no Hoare annotation was computed. [2020-10-20 01:43:21,163 INFO L274 CegarLoopResult]: For program point L132-2(lines 132 138) no Hoare annotation was computed. [2020-10-20 01:43:21,163 INFO L274 CegarLoopResult]: For program point L67(lines 67 71) no Hoare annotation was computed. [2020-10-20 01:43:21,163 INFO L274 CegarLoopResult]: For program point L860(lines 860 866) no Hoare annotation was computed. [2020-10-20 01:43:21,163 INFO L274 CegarLoopResult]: For program point L860-2(lines 860 866) no Hoare annotation was computed. [2020-10-20 01:43:21,164 INFO L274 CegarLoopResult]: For program point L728(lines 728 745) no Hoare annotation was computed. [2020-10-20 01:43:21,164 INFO L274 CegarLoopResult]: For program point L860-4(lines 860 866) no Hoare annotation was computed. [2020-10-20 01:43:21,164 INFO L274 CegarLoopResult]: For program point L728-1(lines 728 745) no Hoare annotation was computed. [2020-10-20 01:43:21,164 INFO L274 CegarLoopResult]: For program point L728-2(lines 728 745) no Hoare annotation was computed. [2020-10-20 01:43:21,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:21 BoogieIcfgContainer [2020-10-20 01:43:21,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:21,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:21,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:21,192 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:21,193 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 01:43:21,197 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:43:21,217 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:43:21,218 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:43:21,219 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:43:21,219 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:43:21,220 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:43:21,221 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:43:21,221 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:43:21,257 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 01:43:21,257 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) || (((((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 0) [2020-10-20 01:43:21,258 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && \result == 0) && 1 == systemActive) && 2 <= waterLevel) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (1 == systemActive && ((((waterLevel == 1 && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0))) [2020-10-20 01:43:21,258 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) && \result == 1 [2020-10-20 01:43:21,350 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:21,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:21,353 INFO L168 Benchmark]: Toolchain (without parser) took 4457.64 ms. Allocated memory was 34.6 MB in the beginning and 70.3 MB in the end (delta: 35.7 MB). Free memory was 10.7 MB in the beginning and 30.2 MB in the end (delta: -19.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,354 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 41.6 kB). Peak memory consumption was 41.6 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.42 ms. Allocated memory was 34.6 MB in the beginning and 43.5 MB in the end (delta: 8.9 MB). Free memory was 9.8 MB in the beginning and 25.3 MB in the end (delta: -15.4 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,357 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.84 ms. Allocated memory is still 43.5 MB. Free memory was 25.3 MB in the beginning and 21.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,357 INFO L168 Benchmark]: Boogie Preprocessor took 44.53 ms. Allocated memory is still 43.5 MB. Free memory was 21.8 MB in the beginning and 19.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,358 INFO L168 Benchmark]: RCFGBuilder took 903.59 ms. Allocated memory was 43.5 MB in the beginning and 47.7 MB in the end (delta: 4.2 MB). Free memory was 19.4 MB in the beginning and 13.2 MB in the end (delta: 6.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,358 INFO L168 Benchmark]: TraceAbstraction took 2656.41 ms. Allocated memory was 47.7 MB in the beginning and 70.3 MB in the end (delta: 22.5 MB). Free memory was 12.5 MB in the beginning and 41.1 MB in the end (delta: -28.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,359 INFO L168 Benchmark]: Witness Printer took 158.50 ms. Allocated memory is still 70.3 MB. Free memory was 41.1 MB in the beginning and 30.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 41.6 kB). Peak memory consumption was 41.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 612.42 ms. Allocated memory was 34.6 MB in the beginning and 43.5 MB in the end (delta: 8.9 MB). Free memory was 9.8 MB in the beginning and 25.3 MB in the end (delta: -15.4 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 69.84 ms. Allocated memory is still 43.5 MB. Free memory was 25.3 MB in the beginning and 21.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 44.53 ms. Allocated memory is still 43.5 MB. Free memory was 21.8 MB in the beginning and 19.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 903.59 ms. Allocated memory was 43.5 MB in the beginning and 47.7 MB in the end (delta: 4.2 MB). Free memory was 19.4 MB in the beginning and 13.2 MB in the end (delta: 6.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2656.41 ms. Allocated memory was 47.7 MB in the beginning and 70.3 MB in the end (delta: 22.5 MB). Free memory was 12.5 MB in the beginning and 41.1 MB in the end (delta: -28.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.3 GB. * Witness Printer took 158.50 ms. Allocated memory is still 70.3 MB. Free memory was 41.1 MB in the beginning and 30.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 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: 629]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 1) && tmp == 0) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) || (((((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 0) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: 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: 703]: Loop Invariant Derived loop invariant: ((((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) || (((1 == systemActive && pumpRunning == 1) && tmp == 0) && splverifierCounter == 0) - InvariantResult [Line: 900]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && \result == 0) && 1 == systemActive) && 2 <= waterLevel) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (1 == systemActive && ((((waterLevel == 1 && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0))) - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 221]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) && \result == 1 - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 1) && tmp == 0) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 650]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 1) && tmp == 0) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 703]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 703]: 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: 1.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 742 SDtfs, 666 SDslu, 950 SDs, 0 SdLazy, 147 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 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, 294 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 33 PreInvPairs, 88 NumberOfFragments, 398 HoareAnnotationTreeSize, 33 FomulaSimplifications, 5506 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 33 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 13637 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...