./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product51.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_spec2_product51.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 2d6bd7a2d1728d381423fedea6f747367a642c2a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:42:36,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:42:36,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:42:36,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:42:36,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:42:36,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:42:36,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:42:36,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:42:36,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:42:36,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:42:36,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:42:36,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:42:36,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:42:36,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:42:36,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:42:36,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:42:36,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:42:36,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:42:36,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:42:36,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:42:36,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:42:36,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:42:36,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:42:36,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:42:36,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:42:36,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:42:36,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:42:36,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:42:36,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:42:36,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:42:36,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:42:36,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:42:36,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:42:36,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:42:36,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:42:36,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:42:36,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:42:36,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:42:36,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:42:36,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:42:36,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:42:36,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:42:36,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:42:36,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:42:36,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:42:36,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:42:36,831 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:42:36,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:42:36,832 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:42:36,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:42:36,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:42:36,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:42:36,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:42:36,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:42:36,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:42:36,835 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:42:36,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:42:36,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:42:36,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:42:36,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:42:36,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:42:36,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:42:36,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:42:36,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:42:36,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:42:36,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:42:36,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:42:36,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:42:36,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:42:36,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:42:36,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:42:36,838 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 -> 2d6bd7a2d1728d381423fedea6f747367a642c2a [2020-10-20 01:42:37,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:42:37,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:42:37,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:42:37,049 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:42:37,050 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:42:37,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2020-10-20 01:42:37,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f395a6398/3970056b230e4690accb8477fff59c66/FLAG406cd61a4 [2020-10-20 01:42:37,762 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:42:37,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2020-10-20 01:42:37,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f395a6398/3970056b230e4690accb8477fff59c66/FLAG406cd61a4 [2020-10-20 01:42:38,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f395a6398/3970056b230e4690accb8477fff59c66 [2020-10-20 01:42:38,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:42:38,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:42:38,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:38,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:42:38,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:42:38,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ede9696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38, skipping insertion in model container [2020-10-20 01:42:38,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:42:38,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:42:38,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:38,606 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:42:38,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:38,744 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:42:38,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38 WrapperNode [2020-10-20 01:42:38,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:38,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:38,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:42:38,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:42:38,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:38,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:42:38,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:42:38,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:42:38,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:42:38,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:42:38,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:42:38,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:42:38,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (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 01:42:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:42:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:42:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:42:38,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:42:39,903 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:42:39,903 INFO L298 CfgBuilder]: Removed 168 assume(true) statements. [2020-10-20 01:42:39,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:39 BoogieIcfgContainer [2020-10-20 01:42:39,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:42:39,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:42:39,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:42:39,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:42:39,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:42:38" (1/3) ... [2020-10-20 01:42:39,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e0da5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:39, skipping insertion in model container [2020-10-20 01:42:39,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (2/3) ... [2020-10-20 01:42:39,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e0da5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:39, skipping insertion in model container [2020-10-20 01:42:39,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:39" (3/3) ... [2020-10-20 01:42:39,915 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2020-10-20 01:42:39,929 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:42:39,937 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:42:39,951 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:42:39,979 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:42:39,979 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:42:39,979 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:42:39,980 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:42:39,980 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:42:39,980 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:42:39,980 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:42:39,981 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:42:40,014 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2020-10-20 01:42:40,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:42:40,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:40,023 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 01:42:40,023 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:40,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:40,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2127136324, now seen corresponding path program 1 times [2020-10-20 01:42:40,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:40,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62615508] [2020-10-20 01:42:40,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:40,297 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 01:42:40,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62615508] [2020-10-20 01:42:40,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:40,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:40,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166267590] [2020-10-20 01:42:40,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:42:40,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:40,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:42:40,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:42:40,323 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 2 states. [2020-10-20 01:42:40,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:40,359 INFO L93 Difference]: Finished difference Result 242 states and 369 transitions. [2020-10-20 01:42:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:42:40,361 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:42:40,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:40,374 INFO L225 Difference]: With dead ends: 242 [2020-10-20 01:42:40,374 INFO L226 Difference]: Without dead ends: 119 [2020-10-20 01:42:40,378 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 01:42:40,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-20 01:42:40,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-10-20 01:42:40,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-20 01:42:40,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2020-10-20 01:42:40,421 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 18 [2020-10-20 01:42:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:40,422 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2020-10-20 01:42:40,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:42:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2020-10-20 01:42:40,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:42:40,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:40,423 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 01:42:40,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:42:40,424 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:40,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:40,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1908300355, now seen corresponding path program 1 times [2020-10-20 01:42:40,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:40,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92971518] [2020-10-20 01:42:40,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:40,615 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 01:42:40,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92971518] [2020-10-20 01:42:40,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:40,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:40,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248730720] [2020-10-20 01:42:40,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:40,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:40,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:40,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:40,619 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand 3 states. [2020-10-20 01:42:40,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:40,634 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2020-10-20 01:42:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:40,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:42:40,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:40,636 INFO L225 Difference]: With dead ends: 119 [2020-10-20 01:42:40,636 INFO L226 Difference]: Without dead ends: 51 [2020-10-20 01:42:40,637 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 01:42:40,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-20 01:42:40,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-20 01:42:40,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-20 01:42:40,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2020-10-20 01:42:40,644 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2020-10-20 01:42:40,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:40,645 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2020-10-20 01:42:40,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:40,645 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2020-10-20 01:42:40,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:42:40,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:40,646 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 01:42:40,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:42:40,647 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:40,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:40,647 INFO L82 PathProgramCache]: Analyzing trace with hash -781547841, now seen corresponding path program 1 times [2020-10-20 01:42:40,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:40,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084137640] [2020-10-20 01:42:40,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:40,734 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 01:42:40,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084137640] [2020-10-20 01:42:40,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:40,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:40,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862847113] [2020-10-20 01:42:40,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:42:40,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:40,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:42:40,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:42:40,737 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 6 states. [2020-10-20 01:42:41,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:41,015 INFO L93 Difference]: Finished difference Result 163 states and 244 transitions. [2020-10-20 01:42:41,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:42:41,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-20 01:42:41,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:41,018 INFO L225 Difference]: With dead ends: 163 [2020-10-20 01:42:41,018 INFO L226 Difference]: Without dead ends: 119 [2020-10-20 01:42:41,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:42:41,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-20 01:42:41,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 71. [2020-10-20 01:42:41,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-20 01:42:41,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2020-10-20 01:42:41,032 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 24 [2020-10-20 01:42:41,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:41,032 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2020-10-20 01:42:41,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:42:41,033 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2020-10-20 01:42:41,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:42:41,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:41,035 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] [2020-10-20 01:42:41,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:42:41,035 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:41,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:41,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1063081859, now seen corresponding path program 1 times [2020-10-20 01:42:41,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:41,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826750346] [2020-10-20 01:42:41,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:41,106 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 01:42:41,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826750346] [2020-10-20 01:42:41,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:41,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:41,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390066447] [2020-10-20 01:42:41,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:41,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:41,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:41,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:41,113 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand 3 states. [2020-10-20 01:42:41,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:41,183 INFO L93 Difference]: Finished difference Result 157 states and 235 transitions. [2020-10-20 01:42:41,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:41,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-20 01:42:41,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:41,185 INFO L225 Difference]: With dead ends: 157 [2020-10-20 01:42:41,185 INFO L226 Difference]: Without dead ends: 93 [2020-10-20 01:42:41,186 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 01:42:41,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-20 01:42:41,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-10-20 01:42:41,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-20 01:42:41,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2020-10-20 01:42:41,203 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 26 [2020-10-20 01:42:41,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:41,203 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2020-10-20 01:42:41,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:41,204 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2020-10-20 01:42:41,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 01:42:41,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:41,205 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] [2020-10-20 01:42:41,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:42:41,206 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:41,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:41,206 INFO L82 PathProgramCache]: Analyzing trace with hash -460039864, now seen corresponding path program 1 times [2020-10-20 01:42:41,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:41,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606328008] [2020-10-20 01:42:41,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:41,296 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 01:42:41,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606328008] [2020-10-20 01:42:41,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:41,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:41,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806507546] [2020-10-20 01:42:41,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:41,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:41,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:41,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:41,298 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand 5 states. [2020-10-20 01:42:41,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:41,392 INFO L93 Difference]: Finished difference Result 452 states and 663 transitions. [2020-10-20 01:42:41,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 01:42:41,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-20 01:42:41,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:41,396 INFO L225 Difference]: With dead ends: 452 [2020-10-20 01:42:41,397 INFO L226 Difference]: Without dead ends: 368 [2020-10-20 01:42:41,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:42:41,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-20 01:42:41,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 164. [2020-10-20 01:42:41,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-20 01:42:41,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 233 transitions. [2020-10-20 01:42:41,437 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 233 transitions. Word has length 27 [2020-10-20 01:42:41,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:41,437 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 233 transitions. [2020-10-20 01:42:41,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:41,438 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 233 transitions. [2020-10-20 01:42:41,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 01:42:41,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:41,439 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] [2020-10-20 01:42:41,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:42:41,440 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:41,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:41,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1894185024, now seen corresponding path program 1 times [2020-10-20 01:42:41,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:41,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356976902] [2020-10-20 01:42:41,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:41,498 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 01:42:41,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356976902] [2020-10-20 01:42:41,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:41,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:41,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590905419] [2020-10-20 01:42:41,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:41,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:41,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:41,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:41,501 INFO L87 Difference]: Start difference. First operand 164 states and 233 transitions. Second operand 5 states. [2020-10-20 01:42:41,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:41,678 INFO L93 Difference]: Finished difference Result 605 states and 865 transitions. [2020-10-20 01:42:41,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:42:41,681 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-20 01:42:41,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:41,683 INFO L225 Difference]: With dead ends: 605 [2020-10-20 01:42:41,683 INFO L226 Difference]: Without dead ends: 448 [2020-10-20 01:42:41,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:42:41,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-20 01:42:41,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 162. [2020-10-20 01:42:41,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-20 01:42:41,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 227 transitions. [2020-10-20 01:42:41,717 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 227 transitions. Word has length 28 [2020-10-20 01:42:41,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:41,721 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 227 transitions. [2020-10-20 01:42:41,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:41,722 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 227 transitions. [2020-10-20 01:42:41,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:41,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:41,725 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, 1] [2020-10-20 01:42:41,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:42:41,728 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:41,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:41,729 INFO L82 PathProgramCache]: Analyzing trace with hash -44877900, now seen corresponding path program 1 times [2020-10-20 01:42:41,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:41,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623973132] [2020-10-20 01:42:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:41,800 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 01:42:41,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623973132] [2020-10-20 01:42:41,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:41,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:41,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774986587] [2020-10-20 01:42:41,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:41,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:41,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:41,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:41,803 INFO L87 Difference]: Start difference. First operand 162 states and 227 transitions. Second operand 5 states. [2020-10-20 01:42:41,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:41,903 INFO L93 Difference]: Finished difference Result 479 states and 665 transitions. [2020-10-20 01:42:41,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:42:41,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-20 01:42:41,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:41,906 INFO L225 Difference]: With dead ends: 479 [2020-10-20 01:42:41,906 INFO L226 Difference]: Without dead ends: 324 [2020-10-20 01:42:41,907 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 01:42:41,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-20 01:42:41,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 174. [2020-10-20 01:42:41,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-20 01:42:41,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 239 transitions. [2020-10-20 01:42:41,926 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 239 transitions. Word has length 33 [2020-10-20 01:42:41,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:41,926 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 239 transitions. [2020-10-20 01:42:41,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:41,926 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 239 transitions. [2020-10-20 01:42:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:41,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:41,928 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, 1] [2020-10-20 01:42:41,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:42:41,928 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:41,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:41,929 INFO L82 PathProgramCache]: Analyzing trace with hash 656186678, now seen corresponding path program 1 times [2020-10-20 01:42:41,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:41,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753349122] [2020-10-20 01:42:41,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:41,989 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 01:42:41,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753349122] [2020-10-20 01:42:41,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:41,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:42:41,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220682318] [2020-10-20 01:42:41,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:42:41,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:41,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:42:41,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:42:41,992 INFO L87 Difference]: Start difference. First operand 174 states and 239 transitions. Second operand 6 states. [2020-10-20 01:42:42,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:42,116 INFO L93 Difference]: Finished difference Result 513 states and 699 transitions. [2020-10-20 01:42:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:42:42,116 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-10-20 01:42:42,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:42,118 INFO L225 Difference]: With dead ends: 513 [2020-10-20 01:42:42,119 INFO L226 Difference]: Without dead ends: 346 [2020-10-20 01:42:42,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-20 01:42:42,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-20 01:42:42,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 182. [2020-10-20 01:42:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-20 01:42:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2020-10-20 01:42:42,140 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 33 [2020-10-20 01:42:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:42,141 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2020-10-20 01:42:42,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:42:42,141 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2020-10-20 01:42:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:42,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:42,142 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, 1] [2020-10-20 01:42:42,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:42:42,142 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:42,143 INFO L82 PathProgramCache]: Analyzing trace with hash 69380664, now seen corresponding path program 1 times [2020-10-20 01:42:42,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:42,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672979106] [2020-10-20 01:42:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:42,194 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 01:42:42,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672979106] [2020-10-20 01:42:42,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:42,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:42,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703594777] [2020-10-20 01:42:42,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:42,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:42,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:42,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:42,196 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand 3 states. [2020-10-20 01:42:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:42,256 INFO L93 Difference]: Finished difference Result 445 states and 603 transitions. [2020-10-20 01:42:42,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:42,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-10-20 01:42:42,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:42,259 INFO L225 Difference]: With dead ends: 445 [2020-10-20 01:42:42,259 INFO L226 Difference]: Without dead ends: 270 [2020-10-20 01:42:42,260 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 01:42:42,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-20 01:42:42,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2020-10-20 01:42:42,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-20 01:42:42,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 357 transitions. [2020-10-20 01:42:42,289 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 357 transitions. Word has length 33 [2020-10-20 01:42:42,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:42,289 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 357 transitions. [2020-10-20 01:42:42,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:42,290 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 357 transitions. [2020-10-20 01:42:42,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 01:42:42,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:42,291 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, 1, 1] [2020-10-20 01:42:42,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:42:42,291 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:42,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:42,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1964012792, now seen corresponding path program 1 times [2020-10-20 01:42:42,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:42,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541069448] [2020-10-20 01:42:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:42,338 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 01:42:42,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541069448] [2020-10-20 01:42:42,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:42,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:42,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428657925] [2020-10-20 01:42:42,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:42,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:42,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:42,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:42,340 INFO L87 Difference]: Start difference. First operand 270 states and 357 transitions. Second operand 3 states. [2020-10-20 01:42:42,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:42,410 INFO L93 Difference]: Finished difference Result 389 states and 516 transitions. [2020-10-20 01:42:42,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:42,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-10-20 01:42:42,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:42,414 INFO L225 Difference]: With dead ends: 389 [2020-10-20 01:42:42,414 INFO L226 Difference]: Without dead ends: 387 [2020-10-20 01:42:42,415 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 01:42:42,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-10-20 01:42:42,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 316. [2020-10-20 01:42:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-10-20 01:42:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 425 transitions. [2020-10-20 01:42:42,447 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 425 transitions. Word has length 34 [2020-10-20 01:42:42,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:42,447 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 425 transitions. [2020-10-20 01:42:42,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:42,447 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 425 transitions. [2020-10-20 01:42:42,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-20 01:42:42,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:42,449 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2020-10-20 01:42:42,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:42:42,449 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:42,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:42,450 INFO L82 PathProgramCache]: Analyzing trace with hash -2028420446, now seen corresponding path program 1 times [2020-10-20 01:42:42,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:42,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407284933] [2020-10-20 01:42:42,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:42,705 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2020-10-20 01:42:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:42,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407284933] [2020-10-20 01:42:42,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:42,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:42:42,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537971674] [2020-10-20 01:42:42,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:42:42,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:42,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:42:42,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:42:42,714 INFO L87 Difference]: Start difference. First operand 316 states and 425 transitions. Second operand 6 states. [2020-10-20 01:42:43,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:43,156 INFO L93 Difference]: Finished difference Result 1729 states and 2372 transitions. [2020-10-20 01:42:43,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 01:42:43,157 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-20 01:42:43,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:43,166 INFO L225 Difference]: With dead ends: 1729 [2020-10-20 01:42:43,166 INFO L226 Difference]: Without dead ends: 1508 [2020-10-20 01:42:43,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-20 01:42:43,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2020-10-20 01:42:43,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 659. [2020-10-20 01:42:43,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-10-20 01:42:43,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 886 transitions. [2020-10-20 01:42:43,259 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 886 transitions. Word has length 58 [2020-10-20 01:42:43,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:43,260 INFO L481 AbstractCegarLoop]: Abstraction has 659 states and 886 transitions. [2020-10-20 01:42:43,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:42:43,260 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 886 transitions. [2020-10-20 01:42:43,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-20 01:42:43,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:43,262 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2020-10-20 01:42:43,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:42:43,263 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:43,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:43,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1770255008, now seen corresponding path program 1 times [2020-10-20 01:42:43,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:43,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129965745] [2020-10-20 01:42:43,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 01:42:43,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129965745] [2020-10-20 01:42:43,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:43,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 01:42:43,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361605471] [2020-10-20 01:42:43,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 01:42:43,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:43,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 01:42:43,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:42:43,379 INFO L87 Difference]: Start difference. First operand 659 states and 886 transitions. Second operand 7 states. [2020-10-20 01:42:43,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:43,567 INFO L93 Difference]: Finished difference Result 1322 states and 1767 transitions. [2020-10-20 01:42:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:42:43,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-10-20 01:42:43,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:43,573 INFO L225 Difference]: With dead ends: 1322 [2020-10-20 01:42:43,573 INFO L226 Difference]: Without dead ends: 758 [2020-10-20 01:42:43,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:42:43,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-10-20 01:42:43,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 366. [2020-10-20 01:42:43,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-10-20 01:42:43,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 473 transitions. [2020-10-20 01:42:43,645 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 473 transitions. Word has length 58 [2020-10-20 01:42:43,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:43,645 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 473 transitions. [2020-10-20 01:42:43,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 01:42:43,645 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 473 transitions. [2020-10-20 01:42:43,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-20 01:42:43,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:43,647 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:43,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 01:42:43,648 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:43,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:43,648 INFO L82 PathProgramCache]: Analyzing trace with hash 2035294012, now seen corresponding path program 1 times [2020-10-20 01:42:43,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:43,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077971657] [2020-10-20 01:42:43,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:43,702 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:43,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077971657] [2020-10-20 01:42:43,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:43,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:43,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273930976] [2020-10-20 01:42:43,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:43,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:43,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:43,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:43,706 INFO L87 Difference]: Start difference. First operand 366 states and 473 transitions. Second operand 5 states. [2020-10-20 01:42:43,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:43,883 INFO L93 Difference]: Finished difference Result 634 states and 825 transitions. [2020-10-20 01:42:43,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:42:43,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-10-20 01:42:43,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:43,885 INFO L225 Difference]: With dead ends: 634 [2020-10-20 01:42:43,886 INFO L226 Difference]: Without dead ends: 363 [2020-10-20 01:42:43,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 01:42:43,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-10-20 01:42:43,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 359. [2020-10-20 01:42:43,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-10-20 01:42:43,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 456 transitions. [2020-10-20 01:42:43,930 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 456 transitions. Word has length 58 [2020-10-20 01:42:43,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:43,930 INFO L481 AbstractCegarLoop]: Abstraction has 359 states and 456 transitions. [2020-10-20 01:42:43,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:43,931 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 456 transitions. [2020-10-20 01:42:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-20 01:42:43,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:43,932 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:43,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 01:42:43,932 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:43,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:43,933 INFO L82 PathProgramCache]: Analyzing trace with hash -269740822, now seen corresponding path program 1 times [2020-10-20 01:42:43,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:43,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224553128] [2020-10-20 01:42:43,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:43,986 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-20 01:42:43,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224553128] [2020-10-20 01:42:43,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:43,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:43,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60648802] [2020-10-20 01:42:43,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:43,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:43,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:43,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:43,988 INFO L87 Difference]: Start difference. First operand 359 states and 456 transitions. Second operand 3 states. [2020-10-20 01:42:44,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:44,289 INFO L93 Difference]: Finished difference Result 707 states and 897 transitions. [2020-10-20 01:42:44,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:44,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-10-20 01:42:44,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:44,290 INFO L225 Difference]: With dead ends: 707 [2020-10-20 01:42:44,290 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:42:44,291 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 01:42:44,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:42:44,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:42:44,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:42:44,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:42:44,292 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2020-10-20 01:42:44,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:44,293 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:42:44,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:44,293 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:42:44,293 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:42:44,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 01:42:44,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:42:44,693 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 189 [2020-10-20 01:42:44,927 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 163 [2020-10-20 01:42:45,173 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 173 [2020-10-20 01:42:45,481 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 188 [2020-10-20 01:42:45,697 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 165 [2020-10-20 01:42:45,967 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 191 [2020-10-20 01:42:46,532 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 173 [2020-10-20 01:42:47,374 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 32 [2020-10-20 01:42:47,955 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 27 [2020-10-20 01:42:48,099 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 22 [2020-10-20 01:42:48,773 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 34 [2020-10-20 01:42:49,599 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 29 [2020-10-20 01:42:49,769 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 32 [2020-10-20 01:42:50,259 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 27 [2020-10-20 01:42:51,325 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 182 DAG size of output: 33 [2020-10-20 01:42:51,566 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 25 [2020-10-20 01:42:51,959 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 29 [2020-10-20 01:42:52,240 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 34 [2020-10-20 01:42:52,634 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 37 [2020-10-20 01:42:53,320 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 26 [2020-10-20 01:42:53,344 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:42:53,345 INFO L274 CegarLoopResult]: For program point L498(lines 498 504) no Hoare annotation was computed. [2020-10-20 01:42:53,345 INFO L274 CegarLoopResult]: For program point L498-1(lines 498 504) no Hoare annotation was computed. [2020-10-20 01:42:53,345 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 504) no Hoare annotation was computed. [2020-10-20 01:42:53,345 INFO L274 CegarLoopResult]: For program point L498-3(lines 498 504) no Hoare annotation was computed. [2020-10-20 01:42:53,345 INFO L274 CegarLoopResult]: For program point L498-4(lines 498 504) no Hoare annotation was computed. [2020-10-20 01:42:53,346 INFO L274 CegarLoopResult]: For program point L498-5(lines 498 504) no Hoare annotation was computed. [2020-10-20 01:42:53,346 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:42:53,346 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:42:53,346 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:42:53,346 INFO L274 CegarLoopResult]: For program point L433(lines 433 437) no Hoare annotation was computed. [2020-10-20 01:42:53,346 INFO L274 CegarLoopResult]: For program point L533(lines 533 537) no Hoare annotation was computed. [2020-10-20 01:42:53,347 INFO L274 CegarLoopResult]: For program point L533-1(lines 131 137) no Hoare annotation was computed. [2020-10-20 01:42:53,347 INFO L270 CegarLoopResult]: At program point L401(lines 1 988) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:53,347 INFO L270 CegarLoopResult]: At program point L138(lines 138 144) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_main_~tmp~6 1)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~methAndRunningLastTime~0 0) .cse4) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse2 .cse3 (<= 1 ~waterLevel~0) .cse4))) [2020-10-20 01:42:53,347 INFO L270 CegarLoopResult]: At program point L105(lines 56 106) the Hoare annotation is: false [2020-10-20 01:42:53,347 INFO L270 CegarLoopResult]: At program point L138-1(lines 138 144) the Hoare annotation is: false [2020-10-20 01:42:53,348 INFO L270 CegarLoopResult]: At program point L138-2(lines 138 144) the Hoare annotation is: false [2020-10-20 01:42:53,348 INFO L274 CegarLoopResult]: For program point L601(lines 601 608) no Hoare annotation was computed. [2020-10-20 01:42:53,348 INFO L277 CegarLoopResult]: At program point L601-1(lines 601 608) the Hoare annotation is: true [2020-10-20 01:42:53,348 INFO L270 CegarLoopResult]: At program point L503(lines 494 507) the Hoare annotation is: false [2020-10-20 01:42:53,348 INFO L270 CegarLoopResult]: At program point L503-1(lines 494 507) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~6 1)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~methAndRunningLastTime~0 0) .cse5) (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse2 .cse3 .cse4 (<= 1 ~waterLevel~0) .cse5) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2020-10-20 01:42:53,348 INFO L270 CegarLoopResult]: At program point L503-2(lines 494 507) the Hoare annotation is: false [2020-10-20 01:42:53,348 INFO L270 CegarLoopResult]: At program point L503-3(lines 494 507) the Hoare annotation is: false [2020-10-20 01:42:53,348 INFO L270 CegarLoopResult]: At program point L503-4(lines 494 507) the Hoare annotation is: false [2020-10-20 01:42:53,349 INFO L270 CegarLoopResult]: At program point L503-5(lines 494 507) the Hoare annotation is: false [2020-10-20 01:42:53,349 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:42:53,349 INFO L270 CegarLoopResult]: At program point L242(lines 237 245) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~6 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= |ULTIMATE.start_isPumpRunning_#res| 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3) (and (not .cse0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse1 .cse2 (= ~methAndRunningLastTime~0 0) .cse3))) [2020-10-20 01:42:53,349 INFO L270 CegarLoopResult]: At program point L242-1(lines 237 245) the Hoare annotation is: false [2020-10-20 01:42:53,349 INFO L270 CegarLoopResult]: At program point L242-2(lines 237 245) the Hoare annotation is: false [2020-10-20 01:42:53,349 INFO L274 CegarLoopResult]: For program point L77(lines 77 83) no Hoare annotation was computed. [2020-10-20 01:42:53,350 INFO L270 CegarLoopResult]: At program point L77-1(lines 77 83) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~6 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (not .cse0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3))) [2020-10-20 01:42:53,350 INFO L270 CegarLoopResult]: At program point L409(lines 404 412) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:53,350 INFO L270 CegarLoopResult]: At program point L343(lines 338 345) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ULTIMATE.start_main_~tmp~6 1) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:53,350 INFO L274 CegarLoopResult]: For program point L310(lines 310 314) no Hoare annotation was computed. [2020-10-20 01:42:53,350 INFO L274 CegarLoopResult]: For program point L310-2(lines 310 314) no Hoare annotation was computed. [2020-10-20 01:42:53,350 INFO L274 CegarLoopResult]: For program point L310-3(lines 310 314) no Hoare annotation was computed. [2020-10-20 01:42:53,350 INFO L274 CegarLoopResult]: For program point L310-5(lines 310 314) no Hoare annotation was computed. [2020-10-20 01:42:53,350 INFO L274 CegarLoopResult]: For program point L310-6(lines 310 314) no Hoare annotation was computed. [2020-10-20 01:42:53,351 INFO L274 CegarLoopResult]: For program point L310-8(lines 310 314) no Hoare annotation was computed. [2020-10-20 01:42:53,351 INFO L277 CegarLoopResult]: At program point L610(lines 591 613) the Hoare annotation is: true [2020-10-20 01:42:53,351 INFO L270 CegarLoopResult]: At program point L577(lines 573 579) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ULTIMATE.start_main_~tmp~6 1) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:53,351 INFO L274 CegarLoopResult]: For program point L445(lines 445 449) no Hoare annotation was computed. [2020-10-20 01:42:53,351 INFO L270 CegarLoopResult]: At program point L513(lines 508 516) the Hoare annotation is: (and (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= ~pumpRunning~0 0)) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~6 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:42:53,351 INFO L270 CegarLoopResult]: At program point L513-1(lines 508 516) the Hoare annotation is: false [2020-10-20 01:42:53,351 INFO L270 CegarLoopResult]: At program point L513-2(lines 508 516) the Hoare annotation is: false [2020-10-20 01:42:53,352 INFO L270 CegarLoopResult]: At program point L316(lines 301 319) the Hoare annotation is: (and (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 0)) (< 0 (+ ULTIMATE.start_isLowWaterLevel_~tmp~4 1)) (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (not (= ~pumpRunning~0 0)) (<= ULTIMATE.start_isLowWaterLevel_~tmp~4 0) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~6 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:42:53,352 INFO L270 CegarLoopResult]: At program point L316-1(lines 301 319) the Hoare annotation is: false [2020-10-20 01:42:53,352 INFO L270 CegarLoopResult]: At program point L316-2(lines 301 319) the Hoare annotation is: false [2020-10-20 01:42:53,352 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:42:53,352 INFO L274 CegarLoopResult]: For program point L87(lines 87 100) no Hoare annotation was computed. [2020-10-20 01:42:53,352 INFO L274 CegarLoopResult]: For program point L354(lines 354 371) no Hoare annotation was computed. [2020-10-20 01:42:53,352 INFO L270 CegarLoopResult]: At program point L354-1(lines 1 988) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~6 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (not .cse0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3))) [2020-10-20 01:42:53,353 INFO L274 CegarLoopResult]: For program point L354-2(lines 354 371) no Hoare annotation was computed. [2020-10-20 01:42:53,353 INFO L270 CegarLoopResult]: At program point L354-3(lines 1 988) the Hoare annotation is: false [2020-10-20 01:42:53,353 INFO L274 CegarLoopResult]: For program point L354-4(lines 354 371) no Hoare annotation was computed. [2020-10-20 01:42:53,353 INFO L274 CegarLoopResult]: For program point L189(lines 189 206) no Hoare annotation was computed. [2020-10-20 01:42:53,353 INFO L270 CegarLoopResult]: At program point L354-5(lines 1 988) the Hoare annotation is: false [2020-10-20 01:42:53,353 INFO L274 CegarLoopResult]: For program point L189-1(lines 189 206) no Hoare annotation was computed. [2020-10-20 01:42:53,353 INFO L274 CegarLoopResult]: For program point L189-2(lines 189 206) no Hoare annotation was computed. [2020-10-20 01:42:53,353 INFO L274 CegarLoopResult]: For program point L619(line 619) no Hoare annotation was computed. [2020-10-20 01:42:53,353 INFO L274 CegarLoopResult]: For program point L619-1(line 619) no Hoare annotation was computed. [2020-10-20 01:42:53,353 INFO L274 CegarLoopResult]: For program point L619-2(line 619) no Hoare annotation was computed. [2020-10-20 01:42:53,354 INFO L274 CegarLoopResult]: For program point L421(lines 421 425) no Hoare annotation was computed. [2020-10-20 01:42:53,354 INFO L274 CegarLoopResult]: For program point L421-3(lines 421 425) no Hoare annotation was computed. [2020-10-20 01:42:53,354 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:42:53,354 INFO L274 CegarLoopResult]: For program point L421-6(lines 421 425) no Hoare annotation was computed. [2020-10-20 01:42:53,354 INFO L274 CegarLoopResult]: For program point L58(lines 57 104) no Hoare annotation was computed. [2020-10-20 01:42:53,354 INFO L274 CegarLoopResult]: For program point L59(lines 59 63) no Hoare annotation was computed. [2020-10-20 01:42:53,354 INFO L274 CegarLoopResult]: For program point L324(lines 324 330) no Hoare annotation was computed. [2020-10-20 01:42:53,354 INFO L270 CegarLoopResult]: At program point L324-1(lines 324 330) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~6 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse4 .cse3) (and .cse0 .cse1 .cse2 .cse4 (= ~methAndRunningLastTime~0 0) .cse3))) [2020-10-20 01:42:53,354 INFO L274 CegarLoopResult]: For program point L291(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,355 INFO L274 CegarLoopResult]: For program point L291-2(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,355 INFO L274 CegarLoopResult]: For program point L291-3(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,355 INFO L274 CegarLoopResult]: For program point L291-5(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,355 INFO L274 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-10-20 01:42:53,355 INFO L274 CegarLoopResult]: For program point L291-6(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,355 INFO L270 CegarLoopResult]: At program point L93-1(lines 131 137) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~6 1)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (not .cse0) (not .cse1) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse4 .cse6 (= ~methAndRunningLastTime~0 0) .cse5) (and .cse1 .cse2 .cse0 .cse3 .cse4 .cse5) (and (= ~methaneLevelCritical~0 0) .cse1 .cse0 .cse3 .cse4 .cse6 .cse5))) [2020-10-20 01:42:53,355 INFO L274 CegarLoopResult]: For program point L291-8(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,355 INFO L274 CegarLoopResult]: For program point L291-9(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,356 INFO L274 CegarLoopResult]: For program point L291-11(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,356 INFO L274 CegarLoopResult]: For program point L291-12(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,356 INFO L274 CegarLoopResult]: For program point L291-14(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,362 INFO L274 CegarLoopResult]: For program point L291-15(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,363 INFO L274 CegarLoopResult]: For program point L291-17(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:42:53,363 INFO L274 CegarLoopResult]: For program point L358(lines 358 368) no Hoare annotation was computed. [2020-10-20 01:42:53,363 INFO L274 CegarLoopResult]: For program point L358-2(lines 358 368) no Hoare annotation was computed. [2020-10-20 01:42:53,363 INFO L274 CegarLoopResult]: For program point L358-4(lines 358 368) no Hoare annotation was computed. [2020-10-20 01:42:53,363 INFO L274 CegarLoopResult]: For program point L193(lines 193 201) no Hoare annotation was computed. [2020-10-20 01:42:53,363 INFO L274 CegarLoopResult]: For program point L193-1(lines 193 201) no Hoare annotation was computed. [2020-10-20 01:42:53,363 INFO L274 CegarLoopResult]: For program point L193-2(lines 193 201) no Hoare annotation was computed. [2020-10-20 01:42:53,364 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:42:53,364 INFO L270 CegarLoopResult]: At program point L458(lines 453 461) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_main_~tmp~6 1)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~methAndRunningLastTime~0 0) .cse4) (and (= ~methaneLevelCritical~0 0) .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse1 .cse2 .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse2 .cse3 (<= 1 ~waterLevel~0) .cse4))) [2020-10-20 01:42:53,364 INFO L270 CegarLoopResult]: At program point L458-1(lines 453 461) the Hoare annotation is: false [2020-10-20 01:42:53,364 INFO L270 CegarLoopResult]: At program point L458-2(lines 453 461) the Hoare annotation is: false [2020-10-20 01:42:53,364 INFO L274 CegarLoopResult]: For program point L359(lines 359 365) no Hoare annotation was computed. [2020-10-20 01:42:53,364 INFO L274 CegarLoopResult]: For program point L359-2(lines 359 365) no Hoare annotation was computed. [2020-10-20 01:42:53,364 INFO L274 CegarLoopResult]: For program point L359-4(lines 359 365) no Hoare annotation was computed. [2020-10-20 01:42:53,365 INFO L274 CegarLoopResult]: For program point L163(lines 163 180) no Hoare annotation was computed. [2020-10-20 01:42:53,365 INFO L274 CegarLoopResult]: For program point L163-1(lines 163 180) no Hoare annotation was computed. [2020-10-20 01:42:53,365 INFO L274 CegarLoopResult]: For program point L163-2(lines 163 180) no Hoare annotation was computed. [2020-10-20 01:42:53,365 INFO L274 CegarLoopResult]: For program point L163-3(lines 163 180) no Hoare annotation was computed. [2020-10-20 01:42:53,365 INFO L274 CegarLoopResult]: For program point L163-4(lines 163 180) no Hoare annotation was computed. [2020-10-20 01:42:53,365 INFO L274 CegarLoopResult]: For program point L163-5(lines 163 180) no Hoare annotation was computed. [2020-10-20 01:42:53,365 INFO L270 CegarLoopResult]: At program point L131(lines 130 149) the Hoare annotation is: (let ((.cse4 (<= 1 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~6 1)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (not .cse0) (not .cse1) .cse2 .cse3 .cse4 .cse5) (and (= ~methaneLevelCritical~0 0) .cse0 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 (= ~methAndRunningLastTime~0 0) .cse5) (and .cse1 (<= 2 ~waterLevel~0) .cse0 .cse2 .cse3 .cse5))) [2020-10-20 01:42:53,366 INFO L274 CegarLoopResult]: For program point L131-1(lines 131 137) no Hoare annotation was computed. [2020-10-20 01:42:53,366 INFO L270 CegarLoopResult]: At program point L131-2(lines 130 149) the Hoare annotation is: false [2020-10-20 01:42:53,366 INFO L270 CegarLoopResult]: At program point L131-3(lines 130 149) the Hoare annotation is: false [2020-10-20 01:42:53,366 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:42:53,366 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:42:53,366 INFO L270 CegarLoopResult]: At program point L297(lines 282 300) the Hoare annotation is: false [2020-10-20 01:42:53,366 INFO L270 CegarLoopResult]: At program point L297-1(lines 282 300) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~6 1)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~methAndRunningLastTime~0 0) .cse5) (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse0 .cse2 (not (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) .cse3 .cse4 (<= 1 ~waterLevel~0) .cse5) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2020-10-20 01:42:53,367 INFO L270 CegarLoopResult]: At program point L297-2(lines 282 300) the Hoare annotation is: false [2020-10-20 01:42:53,367 INFO L270 CegarLoopResult]: At program point L297-3(lines 282 300) the Hoare annotation is: false [2020-10-20 01:42:53,367 INFO L270 CegarLoopResult]: At program point L297-4(lines 282 300) the Hoare annotation is: false [2020-10-20 01:42:53,367 INFO L270 CegarLoopResult]: At program point L297-5(lines 282 300) the Hoare annotation is: false [2020-10-20 01:42:53,367 INFO L270 CegarLoopResult]: At program point L529-2(lines 529 543) the Hoare annotation is: false [2020-10-20 01:42:53,367 INFO L274 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2020-10-20 01:42:53,367 INFO L270 CegarLoopResult]: At program point L67-1(lines 67 73) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~6 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (not .cse0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3))) [2020-10-20 01:42:53,367 INFO L274 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-20 01:42:53,368 INFO L274 CegarLoopResult]: For program point L167(lines 167 175) no Hoare annotation was computed. [2020-10-20 01:42:53,368 INFO L274 CegarLoopResult]: For program point L167-1(lines 167 175) no Hoare annotation was computed. [2020-10-20 01:42:53,368 INFO L274 CegarLoopResult]: For program point L167-2(lines 167 175) no Hoare annotation was computed. [2020-10-20 01:42:53,368 INFO L274 CegarLoopResult]: For program point L167-3(lines 167 175) no Hoare annotation was computed. [2020-10-20 01:42:53,368 INFO L274 CegarLoopResult]: For program point L167-4(lines 167 175) no Hoare annotation was computed. [2020-10-20 01:42:53,368 INFO L274 CegarLoopResult]: For program point L167-5(lines 167 175) no Hoare annotation was computed. [2020-10-20 01:42:53,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:42:53 BoogieIcfgContainer [2020-10-20 01:42:53,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:42:53,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:42:53,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:42:53,417 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:42:53,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:39" (3/4) ... [2020-10-20 01:42:53,423 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:42:53,451 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:42:53,452 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:42:53,453 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:42:53,454 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:42:53,455 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:42:53,456 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:42:53,457 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:42:53,488 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-10-20 01:42:53,489 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-10-20 01:42:53,489 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-10-20 01:42:53,489 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) [2020-10-20 01:42:53,491 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) [2020-10-20 01:42:53,492 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) [2020-10-20 01:42:53,492 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1)) || (((((0 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((((methaneLevelCritical == 0 && 0 == systemActive) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-10-20 01:42:53,493 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(pumpRunning == 0) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((methaneLevelCritical == 0 && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1)) || (((((0 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:42:53,493 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || (((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-10-20 01:42:53,494 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 <= waterLevel && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((methaneLevelCritical == 0 && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) [2020-10-20 01:42:53,496 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && \result == 0) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-10-20 01:42:53,497 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result <= 0 && !(pumpRunning == 0)) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-10-20 01:42:53,500 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(0 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((!(\result == 0) && !(0 == systemActive)) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:42:53,501 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0 && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) [2020-10-20 01:42:53,504 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result <= 0 && !(tmp___0 == 0)) && 0 < tmp + 1) && !(\result == 0)) && !(pumpRunning == 0)) && tmp <= 0) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-10-20 01:42:53,504 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(0 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((((tmp___0 == 0 && \result == 0) && !(0 == systemActive)) && pumpRunning == 0) && !(tmp == 0)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:42:53,625 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:42:53,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:42:53,627 INFO L168 Benchmark]: Toolchain (without parser) took 15572.18 ms. Allocated memory was 41.9 MB in the beginning and 156.2 MB in the end (delta: 114.3 MB). Free memory was 19.8 MB in the beginning and 104.9 MB in the end (delta: -85.0 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,628 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 32.0 MB. Free memory was 9.0 MB in the beginning and 9.0 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.32 ms. Allocated memory was 41.9 MB in the beginning and 45.1 MB in the end (delta: 3.1 MB). Free memory was 19.0 MB in the beginning and 25.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.80 ms. Allocated memory is still 45.1 MB. Free memory was 25.7 MB in the beginning and 21.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,630 INFO L168 Benchmark]: Boogie Preprocessor took 51.71 ms. Allocated memory is still 45.1 MB. Free memory was 21.8 MB in the beginning and 18.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,630 INFO L168 Benchmark]: RCFGBuilder took 1034.13 ms. Allocated memory was 45.1 MB in the beginning and 48.2 MB in the end (delta: 3.1 MB). Free memory was 18.6 MB in the beginning and 15.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,631 INFO L168 Benchmark]: TraceAbstraction took 13508.09 ms. Allocated memory was 48.2 MB in the beginning and 156.2 MB in the end (delta: 108.0 MB). Free memory was 14.6 MB in the beginning and 119.3 MB in the end (delta: -104.7 MB). Peak memory consumption was 114.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,631 INFO L168 Benchmark]: Witness Printer took 209.96 ms. Allocated memory is still 156.2 MB. Free memory was 119.3 MB in the beginning and 104.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,636 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 32.0 MB. Free memory was 9.0 MB in the beginning and 9.0 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 679.32 ms. Allocated memory was 41.9 MB in the beginning and 45.1 MB in the end (delta: 3.1 MB). Free memory was 19.0 MB in the beginning and 25.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 73.80 ms. Allocated memory is still 45.1 MB. Free memory was 25.7 MB in the beginning and 21.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 51.71 ms. Allocated memory is still 45.1 MB. Free memory was 21.8 MB in the beginning and 18.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1034.13 ms. Allocated memory was 45.1 MB in the beginning and 48.2 MB in the end (delta: 3.1 MB). Free memory was 18.6 MB in the beginning and 15.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 13508.09 ms. Allocated memory was 48.2 MB in the beginning and 156.2 MB in the end (delta: 108.0 MB). Free memory was 14.6 MB in the beginning and 119.3 MB in the end (delta: -104.7 MB). Peak memory consumption was 114.6 MB. Max. memory is 14.3 GB. * Witness Printer took 209.96 ms. Allocated memory is still 156.2 MB. Free memory was 119.3 MB in the beginning and 104.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 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: 404]: Loop Invariant Derived loop invariant: ((((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 591]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 338]: Loop Invariant Derived loop invariant: (((((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1)) || (((((0 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((((methaneLevelCritical == 0 && 0 == systemActive) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: (((((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: ((((((\result <= 0 && !(pumpRunning == 0)) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: ((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && \result == 0) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || (((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: ((((((((((\result <= 0 && !(tmp___0 == 0)) && 0 < tmp + 1) && !(\result == 0)) && !(pumpRunning == 0)) && tmp <= 0) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (((((((!(pumpRunning == 0) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((methaneLevelCritical == 0 && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1)) || (((((0 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((methaneLevelCritical == 0 && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: (((((\result == 0 && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: (((((((!(0 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((!(\result == 0) && !(0 == systemActive)) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: (((((((!(0 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((((tmp___0 == 0 && \result == 0) && !(0 == systemActive)) && pumpRunning == 0) && !(tmp == 0)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 529]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 126 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1407 SDtfs, 2159 SDslu, 2418 SDs, 0 SdLazy, 280 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=659occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 2170 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 188 NumberOfFragments, 825 HoareAnnotationTreeSize, 45 FomulaSimplifications, 1299367 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 45 FomulaSimplificationsInter, 541484 FormulaSimplificationTreeSizeReductionInter, 6.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 510 NumberOfCodeBlocks, 510 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 496 ConstructedInterpolants, 0 QuantifiedInterpolants, 35926 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 82/82 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...