./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product48.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_spec4_product48.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 23682bb018ca337818baa43f0543337e0e1afa6d ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:44:15,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:44:15,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:44:15,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:44:15,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:44:15,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:44:15,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:44:15,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:44:15,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:44:15,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:44:15,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:44:15,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:44:15,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:44:15,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:44:15,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:44:15,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:44:15,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:44:15,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:44:15,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:44:15,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:44:15,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:44:15,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:44:15,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:44:15,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:44:15,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:44:15,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:44:15,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:44:15,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:44:15,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:44:15,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:44:15,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:44:15,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:44:15,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:44:15,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:44:15,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:44:15,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:44:15,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:44:15,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:44:15,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:44:15,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:44:15,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:44:15,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:44:15,926 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:44:15,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:44:15,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:44:15,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:44:15,931 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:44:15,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:44:15,932 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:44:15,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:44:15,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:44:15,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:44:15,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:44:15,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:44:15,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:44:15,933 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:44:15,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:44:15,933 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:44:15,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:44:15,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:44:15,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:44:15,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:44:15,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:44:15,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:15,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:44:15,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:44:15,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:44:15,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:44:15,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:44:15,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:44:15,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:44:15,936 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 -> 23682bb018ca337818baa43f0543337e0e1afa6d [2020-10-20 01:44:16,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:44:16,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:44:16,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:44:16,153 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:44:16,153 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:44:16,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2020-10-20 01:44:16,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56cab2bed/2015c09f9e0b4ddea092f307fe133f86/FLAG5bfb51dcb [2020-10-20 01:44:16,776 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:44:16,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2020-10-20 01:44:16,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56cab2bed/2015c09f9e0b4ddea092f307fe133f86/FLAG5bfb51dcb [2020-10-20 01:44:17,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56cab2bed/2015c09f9e0b4ddea092f307fe133f86 [2020-10-20 01:44:17,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:44:17,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:44:17,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:17,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:44:17,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:44:17,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:17,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df1ab40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17, skipping insertion in model container [2020-10-20 01:44:17,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:17,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:44:17,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:44:17,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:17,746 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:44:17,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:17,922 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:44:17,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17 WrapperNode [2020-10-20 01:44:17,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:17,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:17,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:44:17,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:44:17,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:17,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:17,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:17,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:44:17,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:44:17,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:44:18,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:44:18,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:44:18,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:44:18,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:44:18,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:44:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:44:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:44:18,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:44:19,110 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:44:19,110 INFO L298 CfgBuilder]: Removed 204 assume(true) statements. [2020-10-20 01:44:19,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:19 BoogieIcfgContainer [2020-10-20 01:44:19,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:44:19,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:44:19,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:44:19,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:44:19,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:44:17" (1/3) ... [2020-10-20 01:44:19,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7481ac20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:19, skipping insertion in model container [2020-10-20 01:44:19,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (2/3) ... [2020-10-20 01:44:19,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7481ac20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:19, skipping insertion in model container [2020-10-20 01:44:19,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:19" (3/3) ... [2020-10-20 01:44:19,121 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-10-20 01:44:19,132 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:44:19,141 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:44:19,154 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:44:19,180 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:44:19,181 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:44:19,181 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:44:19,184 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:44:19,184 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:44:19,185 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:44:19,185 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:44:19,185 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:44:19,212 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2020-10-20 01:44:19,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:44:19,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:19,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:19,220 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:19,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:19,224 INFO L82 PathProgramCache]: Analyzing trace with hash -240807826, now seen corresponding path program 1 times [2020-10-20 01:44:19,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:19,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340934036] [2020-10-20 01:44:19,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:19,531 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 01:44:19,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340934036] [2020-10-20 01:44:19,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:19,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:19,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318904622] [2020-10-20 01:44:19,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:44:19,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:19,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:44:19,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:19,551 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 2 states. [2020-10-20 01:44:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:19,588 INFO L93 Difference]: Finished difference Result 259 states and 386 transitions. [2020-10-20 01:44:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:44:19,589 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:44:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:19,603 INFO L225 Difference]: With dead ends: 259 [2020-10-20 01:44:19,603 INFO L226 Difference]: Without dead ends: 127 [2020-10-20 01:44:19,607 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 01:44:19,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-20 01:44:19,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-10-20 01:44:19,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-20 01:44:19,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2020-10-20 01:44:19,658 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 16 [2020-10-20 01:44:19,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:19,659 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2020-10-20 01:44:19,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:44:19,659 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2020-10-20 01:44:19,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:44:19,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:19,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:19,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:44:19,661 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:19,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:19,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1287564723, now seen corresponding path program 1 times [2020-10-20 01:44:19,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:19,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58445195] [2020-10-20 01:44:19,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:19,809 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 01:44:19,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58445195] [2020-10-20 01:44:19,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:19,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:19,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302892360] [2020-10-20 01:44:19,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:19,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:19,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:19,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:19,813 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand 3 states. [2020-10-20 01:44:19,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:19,829 INFO L93 Difference]: Finished difference Result 127 states and 183 transitions. [2020-10-20 01:44:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:19,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:44:19,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:19,831 INFO L225 Difference]: With dead ends: 127 [2020-10-20 01:44:19,832 INFO L226 Difference]: Without dead ends: 53 [2020-10-20 01:44:19,833 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 01:44:19,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-20 01:44:19,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-20 01:44:19,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-20 01:44:19,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2020-10-20 01:44:19,840 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2020-10-20 01:44:19,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:19,841 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2020-10-20 01:44:19,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:19,841 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2020-10-20 01:44:19,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:44:19,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:19,843 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] [2020-10-20 01:44:19,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:44:19,843 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:19,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:19,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1189907750, now seen corresponding path program 1 times [2020-10-20 01:44:19,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:19,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975539965] [2020-10-20 01:44:19,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:19,938 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 01:44:19,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975539965] [2020-10-20 01:44:19,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:19,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:19,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279845937] [2020-10-20 01:44:19,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:19,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:19,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:19,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:19,941 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 5 states. [2020-10-20 01:44:20,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:20,027 INFO L93 Difference]: Finished difference Result 123 states and 180 transitions. [2020-10-20 01:44:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:20,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-20 01:44:20,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:20,029 INFO L225 Difference]: With dead ends: 123 [2020-10-20 01:44:20,029 INFO L226 Difference]: Without dead ends: 76 [2020-10-20 01:44:20,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:20,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-20 01:44:20,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2020-10-20 01:44:20,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-20 01:44:20,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 105 transitions. [2020-10-20 01:44:20,041 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 105 transitions. Word has length 22 [2020-10-20 01:44:20,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:20,042 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 105 transitions. [2020-10-20 01:44:20,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:20,042 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2020-10-20 01:44:20,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:44:20,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:20,043 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 01:44:20,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:44:20,044 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:20,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:20,044 INFO L82 PathProgramCache]: Analyzing trace with hash 752688312, now seen corresponding path program 1 times [2020-10-20 01:44:20,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:20,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014687501] [2020-10-20 01:44:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:20,092 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 01:44:20,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014687501] [2020-10-20 01:44:20,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:20,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:20,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101284431] [2020-10-20 01:44:20,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:20,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:20,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:20,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:20,095 INFO L87 Difference]: Start difference. First operand 72 states and 105 transitions. Second operand 3 states. [2020-10-20 01:44:20,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:20,166 INFO L93 Difference]: Finished difference Result 159 states and 234 transitions. [2020-10-20 01:44:20,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:20,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:44:20,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:20,168 INFO L225 Difference]: With dead ends: 159 [2020-10-20 01:44:20,169 INFO L226 Difference]: Without dead ends: 93 [2020-10-20 01:44:20,170 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 01:44:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-20 01:44:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-10-20 01:44:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-20 01:44:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2020-10-20 01:44:20,182 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 24 [2020-10-20 01:44:20,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:20,183 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2020-10-20 01:44:20,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:20,183 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2020-10-20 01:44:20,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:44:20,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:20,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:20,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:44:20,184 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:20,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:20,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1744683281, now seen corresponding path program 1 times [2020-10-20 01:44:20,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:20,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306396111] [2020-10-20 01:44:20,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:20,280 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 01:44:20,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306396111] [2020-10-20 01:44:20,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:20,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 01:44:20,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620418605] [2020-10-20 01:44:20,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 01:44:20,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:20,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 01:44:20,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:20,282 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 8 states. [2020-10-20 01:44:20,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:20,731 INFO L93 Difference]: Finished difference Result 585 states and 851 transitions. [2020-10-20 01:44:20,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 01:44:20,732 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-20 01:44:20,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:20,736 INFO L225 Difference]: With dead ends: 585 [2020-10-20 01:44:20,736 INFO L226 Difference]: Without dead ends: 500 [2020-10-20 01:44:20,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-20 01:44:20,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-10-20 01:44:20,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 227. [2020-10-20 01:44:20,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-20 01:44:20,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 316 transitions. [2020-10-20 01:44:20,771 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 316 transitions. Word has length 25 [2020-10-20 01:44:20,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:20,771 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 316 transitions. [2020-10-20 01:44:20,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 01:44:20,772 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 316 transitions. [2020-10-20 01:44:20,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-20 01:44:20,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:20,774 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-20 01:44:20,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:44:20,774 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:20,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:20,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1656950715, now seen corresponding path program 1 times [2020-10-20 01:44:20,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:20,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416084354] [2020-10-20 01:44:20,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:20,851 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:20,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416084354] [2020-10-20 01:44:20,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639199381] [2020-10-20 01:44:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:44:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:21,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 01:44:21,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:21,200 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:21,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 01:44:21,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-20 01:44:21,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320950363] [2020-10-20 01:44:21,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:21,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:21,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:21,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:21,203 INFO L87 Difference]: Start difference. First operand 227 states and 316 transitions. Second operand 4 states. [2020-10-20 01:44:21,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:21,435 INFO L93 Difference]: Finished difference Result 508 states and 721 transitions. [2020-10-20 01:44:21,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:21,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-20 01:44:21,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:21,439 INFO L225 Difference]: With dead ends: 508 [2020-10-20 01:44:21,439 INFO L226 Difference]: Without dead ends: 349 [2020-10-20 01:44:21,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:21,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-10-20 01:44:21,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 337. [2020-10-20 01:44:21,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-10-20 01:44:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 475 transitions. [2020-10-20 01:44:21,476 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 475 transitions. Word has length 41 [2020-10-20 01:44:21,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:21,476 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 475 transitions. [2020-10-20 01:44:21,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 475 transitions. [2020-10-20 01:44:21,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 01:44:21,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:21,479 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-20 01:44:21,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-20 01:44:21,693 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:21,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:21,693 INFO L82 PathProgramCache]: Analyzing trace with hash 720937928, now seen corresponding path program 1 times [2020-10-20 01:44:21,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:21,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949063356] [2020-10-20 01:44:21,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:21,755 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 01:44:21,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949063356] [2020-10-20 01:44:21,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:21,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:21,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914401929] [2020-10-20 01:44:21,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:21,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:21,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:21,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:21,757 INFO L87 Difference]: Start difference. First operand 337 states and 475 transitions. Second operand 5 states. [2020-10-20 01:44:21,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:21,863 INFO L93 Difference]: Finished difference Result 1043 states and 1460 transitions. [2020-10-20 01:44:21,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:21,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-10-20 01:44:21,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:21,868 INFO L225 Difference]: With dead ends: 1043 [2020-10-20 01:44:21,868 INFO L226 Difference]: Without dead ends: 712 [2020-10-20 01:44:21,869 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 01:44:21,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2020-10-20 01:44:21,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 358. [2020-10-20 01:44:21,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-20 01:44:21,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 496 transitions. [2020-10-20 01:44:21,908 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 496 transitions. Word has length 51 [2020-10-20 01:44:21,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:21,909 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 496 transitions. [2020-10-20 01:44:21,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:21,909 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 496 transitions. [2020-10-20 01:44:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 01:44:21,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:21,911 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-20 01:44:21,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:44:21,912 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:21,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:21,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1422537802, now seen corresponding path program 1 times [2020-10-20 01:44:21,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:21,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671193229] [2020-10-20 01:44:21,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:21,960 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 01:44:21,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671193229] [2020-10-20 01:44:21,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:21,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:21,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867955261] [2020-10-20 01:44:21,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:21,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:21,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:21,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:21,963 INFO L87 Difference]: Start difference. First operand 358 states and 496 transitions. Second operand 4 states. [2020-10-20 01:44:22,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:22,035 INFO L93 Difference]: Finished difference Result 832 states and 1157 transitions. [2020-10-20 01:44:22,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:22,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-20 01:44:22,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:22,038 INFO L225 Difference]: With dead ends: 832 [2020-10-20 01:44:22,039 INFO L226 Difference]: Without dead ends: 480 [2020-10-20 01:44:22,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:22,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-10-20 01:44:22,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 312. [2020-10-20 01:44:22,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-10-20 01:44:22,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 428 transitions. [2020-10-20 01:44:22,068 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 428 transitions. Word has length 51 [2020-10-20 01:44:22,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:22,068 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 428 transitions. [2020-10-20 01:44:22,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:22,069 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 428 transitions. [2020-10-20 01:44:22,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-20 01:44:22,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:22,070 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-20 01:44:22,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:44:22,071 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:22,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:22,071 INFO L82 PathProgramCache]: Analyzing trace with hash 572788494, now seen corresponding path program 1 times [2020-10-20 01:44:22,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:22,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167357400] [2020-10-20 01:44:22,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 01:44:22,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167357400] [2020-10-20 01:44:22,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:22,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:22,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696984925] [2020-10-20 01:44:22,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:22,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:22,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:22,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:22,143 INFO L87 Difference]: Start difference. First operand 312 states and 428 transitions. Second operand 6 states. [2020-10-20 01:44:22,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:22,429 INFO L93 Difference]: Finished difference Result 1822 states and 2538 transitions. [2020-10-20 01:44:22,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 01:44:22,430 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-10-20 01:44:22,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:22,438 INFO L225 Difference]: With dead ends: 1822 [2020-10-20 01:44:22,439 INFO L226 Difference]: Without dead ends: 1516 [2020-10-20 01:44:22,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-20 01:44:22,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2020-10-20 01:44:22,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 616. [2020-10-20 01:44:22,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2020-10-20 01:44:22,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 833 transitions. [2020-10-20 01:44:22,514 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 833 transitions. Word has length 52 [2020-10-20 01:44:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:22,515 INFO L481 AbstractCegarLoop]: Abstraction has 616 states and 833 transitions. [2020-10-20 01:44:22,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:22,515 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 833 transitions. [2020-10-20 01:44:22,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-20 01:44:22,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:22,517 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-20 01:44:22,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:44:22,517 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:22,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:22,518 INFO L82 PathProgramCache]: Analyzing trace with hash -118115538, now seen corresponding path program 1 times [2020-10-20 01:44:22,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:22,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200636349] [2020-10-20 01:44:22,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:22,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200636349] [2020-10-20 01:44:22,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233408580] [2020-10-20 01:44:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:44:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:22,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:44:22,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:22,774 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:22,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:44:22,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-20 01:44:22,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583588966] [2020-10-20 01:44:22,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 01:44:22,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:22,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 01:44:22,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:22,776 INFO L87 Difference]: Start difference. First operand 616 states and 833 transitions. Second operand 8 states. [2020-10-20 01:44:23,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:23,163 INFO L93 Difference]: Finished difference Result 1648 states and 2217 transitions. [2020-10-20 01:44:23,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 01:44:23,164 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-10-20 01:44:23,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:23,170 INFO L225 Difference]: With dead ends: 1648 [2020-10-20 01:44:23,170 INFO L226 Difference]: Without dead ends: 1122 [2020-10-20 01:44:23,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-20 01:44:23,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2020-10-20 01:44:23,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 540. [2020-10-20 01:44:23,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2020-10-20 01:44:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 714 transitions. [2020-10-20 01:44:23,237 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 714 transitions. Word has length 53 [2020-10-20 01:44:23,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:23,238 INFO L481 AbstractCegarLoop]: Abstraction has 540 states and 714 transitions. [2020-10-20 01:44:23,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 01:44:23,238 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 714 transitions. [2020-10-20 01:44:23,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-20 01:44:23,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:23,240 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-20 01:44:23,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-20 01:44:23,455 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:23,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:23,456 INFO L82 PathProgramCache]: Analyzing trace with hash -346129302, now seen corresponding path program 2 times [2020-10-20 01:44:23,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:23,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653762942] [2020-10-20 01:44:23,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:44:23,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:44:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:44:23,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:44:23,655 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:44:23,656 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:44:23,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:44:23,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:44:23 BoogieIcfgContainer [2020-10-20 01:44:23,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:44:23,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:44:23,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:44:23,798 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:44:23,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:19" (3/4) ... [2020-10-20 01:44:23,801 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:44:23,964 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:44:23,964 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:44:23,967 INFO L168 Benchmark]: Toolchain (without parser) took 6879.72 ms. Allocated memory was 34.6 MB in the beginning and 97.0 MB in the end (delta: 62.4 MB). Free memory was 15.6 MB in the beginning and 47.8 MB in the end (delta: -32.2 MB). Peak memory consumption was 62.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:23,967 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 33.0 MB. Free memory was 10.4 MB in the beginning and 10.3 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. [2020-10-20 01:44:23,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 831.08 ms. Allocated memory was 34.6 MB in the beginning and 43.0 MB in the end (delta: 8.4 MB). Free memory was 14.7 MB in the beginning and 23.5 MB in the end (delta: -8.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:23,968 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.87 ms. Allocated memory is still 43.0 MB. Free memory was 23.5 MB in the beginning and 19.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:23,969 INFO L168 Benchmark]: Boogie Preprocessor took 48.20 ms. Allocated memory is still 43.0 MB. Free memory was 19.3 MB in the beginning and 16.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:23,970 INFO L168 Benchmark]: RCFGBuilder took 1066.60 ms. Allocated memory was 43.0 MB in the beginning and 49.8 MB in the end (delta: 6.8 MB). Free memory was 16.1 MB in the beginning and 17.9 MB in the end (delta: -1.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:23,970 INFO L168 Benchmark]: TraceAbstraction took 4683.52 ms. Allocated memory was 49.8 MB in the beginning and 91.2 MB in the end (delta: 41.4 MB). Free memory was 17.5 MB in the beginning and 23.9 MB in the end (delta: -6.4 MB). Peak memory consumption was 47.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:23,970 INFO L168 Benchmark]: Witness Printer took 166.89 ms. Allocated memory was 91.2 MB in the beginning and 97.0 MB in the end (delta: 5.8 MB). Free memory was 23.9 MB in the beginning and 47.8 MB in the end (delta: -23.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:23,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 33.0 MB. Free memory was 10.4 MB in the beginning and 10.3 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 831.08 ms. Allocated memory was 34.6 MB in the beginning and 43.0 MB in the end (delta: 8.4 MB). Free memory was 14.7 MB in the beginning and 23.5 MB in the end (delta: -8.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 72.87 ms. Allocated memory is still 43.0 MB. Free memory was 23.5 MB in the beginning and 19.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 48.20 ms. Allocated memory is still 43.0 MB. Free memory was 19.3 MB in the beginning and 16.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1066.60 ms. Allocated memory was 43.0 MB in the beginning and 49.8 MB in the end (delta: 6.8 MB). Free memory was 16.1 MB in the beginning and 17.9 MB in the end (delta: -1.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4683.52 ms. Allocated memory was 49.8 MB in the beginning and 91.2 MB in the end (delta: 41.4 MB). Free memory was 17.5 MB in the beginning and 23.9 MB in the end (delta: -6.4 MB). Peak memory consumption was 47.2 MB. Max. memory is 14.3 GB. * Witness Printer took 166.89 ms. Allocated memory was 91.2 MB in the beginning and 97.0 MB in the end (delta: 5.8 MB). Free memory was 23.9 MB in the beginning and 47.8 MB in the end (delta: -23.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L558] int pumpRunning = 0; [L559] int systemActive = 1; [L776] int waterLevel = 1; [L777] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] int retValue_acc ; [L528] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L965] int retValue_acc ; [L968] retValue_acc = 1 [L969] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L871] int splverifierCounter ; [L872] int tmp ; [L873] int tmp___0 ; [L874] int tmp___1 ; [L875] int tmp___2 ; [L878] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L882] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L888] tmp = __VERIFIER_nondet_int() [L890] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L794] COND TRUE waterLevel < 2 [L795] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND TRUE \read(tmp___2) [L771] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L565] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L572] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] COND FALSE !(\read(pumpRunning)) [L594] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] COND TRUE ! pumpRunning [L734] int retValue_acc ; [L735] int tmp ; [L736] int tmp___0 ; [L856] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L859] COND FALSE !(waterLevel < 2) [L863] retValue_acc = 0 [L864] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L740] tmp = isHighWaterSensorDry() [L742] COND FALSE !(\read(tmp)) [L745] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L747] retValue_acc = tmp___0 [L748] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] tmp = isHighWaterLevel() [L601] COND TRUE \read(tmp) [L653] int tmp ; [L678] int retValue_acc ; [L815] int retValue_acc ; [L818] retValue_acc = methaneLevelCritical [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L682] retValue_acc = isMethaneLevelCritical() [L684] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L657] tmp = isMethaneAlarm() [L659] COND FALSE !(\read(tmp)) [L648] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L882] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L888] tmp = __VERIFIER_nondet_int() [L890] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND TRUE \read(tmp___2) [L771] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L782] COND TRUE waterLevel > 0 [L783] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L572] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] COND TRUE \read(pumpRunning) [L678] int retValue_acc ; [L815] int retValue_acc ; [L818] retValue_acc = methaneLevelCritical [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L682] retValue_acc = isMethaneLevelCritical() [L684] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L625] tmp = isMethaneAlarm() [L627] COND FALSE !(\read(tmp)) [L594] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L597] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L46] int tmp ; [L47] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L882] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L888] tmp = __VERIFIER_nondet_int() [L890] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND TRUE \read(tmp___2) [L771] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L782] COND TRUE waterLevel > 0 [L783] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L572] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L623] COND TRUE \read(pumpRunning) [L678] int retValue_acc ; [L815] int retValue_acc ; [L818] retValue_acc = methaneLevelCritical [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L682] retValue_acc = isMethaneLevelCritical() [L684] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L625] tmp = isMethaneAlarm() [L627] COND FALSE !(\read(tmp)) [L594] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L597] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L46] int tmp ; [L47] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L51] tmp = getWaterLevel() [L53] COND TRUE tmp == 0 [L689] int retValue_acc ; [L692] retValue_acc = pumpRunning [L693] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product48.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 134 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1134 SDtfs, 2223 SDslu, 2206 SDs, 0 SdLazy, 311 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=616occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 2295 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 518 NumberOfCodeBlocks, 518 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 36462 SizeOfPredicates, 4 NumberOfNonLiveVariables, 825 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 89/100 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 incorrect! Received shutdown request...