./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product63.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc4bd2595a0b7e3cefae13519551d835632d9ce9 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-f6fb2bb [2019-11-19 18:57:39,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:57:39,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:57:39,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:57:39,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:57:39,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:57:39,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:57:39,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:57:39,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:57:39,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:57:39,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:57:39,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:57:39,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:57:39,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:57:39,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:57:39,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:57:39,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:57:39,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:57:39,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:57:39,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:57:39,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:57:39,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:57:39,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:57:39,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:57:39,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:57:39,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:57:39,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:57:39,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:57:39,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:57:39,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:57:39,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:57:39,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:57:39,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:57:39,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:57:39,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:57:39,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:57:39,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:57:39,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:57:39,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:57:39,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:57:39,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:57:39,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:57:39,818 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:57:39,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:57:39,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:57:39,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:57:39,821 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:57:39,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:57:39,822 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:57:39,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:57:39,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:57:39,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:57:39,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:57:39,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:57:39,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:57:39,824 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:57:39,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:57:39,824 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:57:39,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:57:39,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:57:39,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:57:39,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:57:39,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:57:39,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:57:39,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:57:39,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:57:39,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:57:39,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:57:39,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:57:39,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:57:39,828 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(__VERIFIER_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 -> bc4bd2595a0b7e3cefae13519551d835632d9ce9 [2019-11-19 18:57:40,124 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:57:40,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:57:40,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:57:40,149 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:57:40,149 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:57:40,151 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2019-11-19 18:57:40,230 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47193006/57ed2ac3c6254bca8860dfb6a227b24f/FLAG05ac2d9b9 [2019-11-19 18:57:40,775 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:57:40,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2019-11-19 18:57:40,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47193006/57ed2ac3c6254bca8860dfb6a227b24f/FLAG05ac2d9b9 [2019-11-19 18:57:41,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47193006/57ed2ac3c6254bca8860dfb6a227b24f [2019-11-19 18:57:41,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:57:41,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:57:41,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:57:41,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:57:41,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:57:41,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:57:41" (1/1) ... [2019-11-19 18:57:41,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@394520f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41, skipping insertion in model container [2019-11-19 18:57:41,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:57:41" (1/1) ... [2019-11-19 18:57:41,111 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:57:41,170 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:57:41,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:57:41,651 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:57:41,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:57:41,800 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:57:41,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41 WrapperNode [2019-11-19 18:57:41,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:57:41,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:57:41,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:57:41,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:57:41,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41" (1/1) ... [2019-11-19 18:57:41,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41" (1/1) ... [2019-11-19 18:57:41,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:57:41,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:57:41,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:57:41,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:57:41,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41" (1/1) ... [2019-11-19 18:57:41,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41" (1/1) ... [2019-11-19 18:57:41,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41" (1/1) ... [2019-11-19 18:57:41,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41" (1/1) ... [2019-11-19 18:57:41,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41" (1/1) ... [2019-11-19 18:57:41,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41" (1/1) ... [2019-11-19 18:57:42,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41" (1/1) ... [2019-11-19 18:57:42,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:57:42,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:57:42,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:57:42,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:57:42,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41" (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 [2019-11-19 18:57:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 18:57:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 18:57:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:57:42,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:57:43,377 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:57:43,377 INFO L285 CfgBuilder]: Removed 358 assume(true) statements. [2019-11-19 18:57:43,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:43 BoogieIcfgContainer [2019-11-19 18:57:43,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:57:43,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:57:43,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:57:43,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:57:43,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:57:41" (1/3) ... [2019-11-19 18:57:43,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35030699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:57:43, skipping insertion in model container [2019-11-19 18:57:43,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:41" (2/3) ... [2019-11-19 18:57:43,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35030699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:57:43, skipping insertion in model container [2019-11-19 18:57:43,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:43" (3/3) ... [2019-11-19 18:57:43,390 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2019-11-19 18:57:43,402 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:57:43,411 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-19 18:57:43,424 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-19 18:57:43,455 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:57:43,455 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:57:43,456 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:57:43,456 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:57:43,456 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:57:43,456 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:57:43,457 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:57:43,457 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:57:43,480 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2019-11-19 18:57:43,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-19 18:57:43,489 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:43,490 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:57:43,491 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:43,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:43,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1810150439, now seen corresponding path program 1 times [2019-11-19 18:57:43,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:43,508 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784704542] [2019-11-19 18:57:43,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:43,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:43,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784704542] [2019-11-19 18:57:43,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:43,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:57:43,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426249289] [2019-11-19 18:57:43,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 18:57:43,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:43,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 18:57:43,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:57:43,828 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2019-11-19 18:57:43,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:43,884 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2019-11-19 18:57:43,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 18:57:43,885 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-19 18:57:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:43,904 INFO L225 Difference]: With dead ends: 460 [2019-11-19 18:57:43,904 INFO L226 Difference]: Without dead ends: 229 [2019-11-19 18:57:43,909 INFO L630 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 [2019-11-19 18:57:43,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-11-19 18:57:43,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2019-11-19 18:57:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-11-19 18:57:43,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2019-11-19 18:57:44,004 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2019-11-19 18:57:44,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:44,005 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2019-11-19 18:57:44,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 18:57:44,006 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2019-11-19 18:57:44,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-19 18:57:44,009 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:44,010 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:57:44,011 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:44,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:44,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1201076285, now seen corresponding path program 1 times [2019-11-19 18:57:44,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:44,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12017498] [2019-11-19 18:57:44,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:44,187 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12017498] [2019-11-19 18:57:44,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:44,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 18:57:44,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960183864] [2019-11-19 18:57:44,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 18:57:44,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:44,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 18:57:44,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:57:44,190 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2019-11-19 18:57:44,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:44,216 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2019-11-19 18:57:44,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 18:57:44,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-19 18:57:44,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:44,219 INFO L225 Difference]: With dead ends: 229 [2019-11-19 18:57:44,220 INFO L226 Difference]: Without dead ends: 87 [2019-11-19 18:57:44,224 INFO L630 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 [2019-11-19 18:57:44,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-11-19 18:57:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-11-19 18:57:44,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-19 18:57:44,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2019-11-19 18:57:44,240 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2019-11-19 18:57:44,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:44,241 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2019-11-19 18:57:44,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 18:57:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2019-11-19 18:57:44,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-19 18:57:44,242 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:44,243 INFO L410 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] [2019-11-19 18:57:44,243 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:44,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:44,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1668670364, now seen corresponding path program 1 times [2019-11-19 18:57:44,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:44,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618211069] [2019-11-19 18:57:44,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:44,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:44,380 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618211069] [2019-11-19 18:57:44,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:44,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 18:57:44,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220421300] [2019-11-19 18:57:44,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 18:57:44,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:44,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 18:57:44,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-19 18:57:44,382 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 6 states. [2019-11-19 18:57:44,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:44,569 INFO L93 Difference]: Finished difference Result 274 states and 406 transitions. [2019-11-19 18:57:44,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 18:57:44,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-19 18:57:44,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:44,573 INFO L225 Difference]: With dead ends: 274 [2019-11-19 18:57:44,575 INFO L226 Difference]: Without dead ends: 193 [2019-11-19 18:57:44,579 INFO L630 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 [2019-11-19 18:57:44,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-19 18:57:44,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 108. [2019-11-19 18:57:44,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-19 18:57:44,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2019-11-19 18:57:44,607 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 24 [2019-11-19 18:57:44,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:44,607 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2019-11-19 18:57:44,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 18:57:44,614 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2019-11-19 18:57:44,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-19 18:57:44,617 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:44,617 INFO L410 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] [2019-11-19 18:57:44,618 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:44,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:44,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1791027038, now seen corresponding path program 1 times [2019-11-19 18:57:44,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:44,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957432066] [2019-11-19 18:57:44,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:44,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:44,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957432066] [2019-11-19 18:57:44,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:44,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:57:44,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305579322] [2019-11-19 18:57:44,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 18:57:44,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:44,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 18:57:44,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:57:44,718 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand 3 states. [2019-11-19 18:57:44,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:44,781 INFO L93 Difference]: Finished difference Result 218 states and 323 transitions. [2019-11-19 18:57:44,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 18:57:44,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-11-19 18:57:44,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:44,783 INFO L225 Difference]: With dead ends: 218 [2019-11-19 18:57:44,783 INFO L226 Difference]: Without dead ends: 116 [2019-11-19 18:57:44,785 INFO L630 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 [2019-11-19 18:57:44,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-11-19 18:57:44,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2019-11-19 18:57:44,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-19 18:57:44,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2019-11-19 18:57:44,811 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 162 transitions. Word has length 27 [2019-11-19 18:57:44,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:44,812 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 162 transitions. [2019-11-19 18:57:44,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 18:57:44,813 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2019-11-19 18:57:44,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-19 18:57:44,816 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:44,818 INFO L410 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] [2019-11-19 18:57:44,819 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:44,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:44,819 INFO L82 PathProgramCache]: Analyzing trace with hash 234819321, now seen corresponding path program 1 times [2019-11-19 18:57:44,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:44,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081086853] [2019-11-19 18:57:44,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:44,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:44,922 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081086853] [2019-11-19 18:57:44,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:44,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 18:57:44,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460392016] [2019-11-19 18:57:44,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 18:57:44,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:44,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 18:57:44,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 18:57:44,927 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. Second operand 5 states. [2019-11-19 18:57:45,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:45,098 INFO L93 Difference]: Finished difference Result 578 states and 838 transitions. [2019-11-19 18:57:45,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 18:57:45,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-19 18:57:45,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:45,103 INFO L225 Difference]: With dead ends: 578 [2019-11-19 18:57:45,103 INFO L226 Difference]: Without dead ends: 470 [2019-11-19 18:57:45,104 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-19 18:57:45,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-11-19 18:57:45,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 183. [2019-11-19 18:57:45,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-11-19 18:57:45,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 255 transitions. [2019-11-19 18:57:45,150 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 255 transitions. Word has length 27 [2019-11-19 18:57:45,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:45,151 INFO L462 AbstractCegarLoop]: Abstraction has 183 states and 255 transitions. [2019-11-19 18:57:45,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 18:57:45,151 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 255 transitions. [2019-11-19 18:57:45,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-19 18:57:45,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:45,152 INFO L410 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] [2019-11-19 18:57:45,153 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:45,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:45,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1465444421, now seen corresponding path program 1 times [2019-11-19 18:57:45,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:45,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740606436] [2019-11-19 18:57:45,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:57:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:57:46,037 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 18:57:46,038 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 18:57:46,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:57:46 BoogieIcfgContainer [2019-11-19 18:57:46,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:57:46,170 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:57:46,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:57:46,171 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:57:46,171 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:43" (3/4) ... [2019-11-19 18:57:46,174 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 18:57:46,261 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 18:57:46,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:57:46,264 INFO L168 Benchmark]: Toolchain (without parser) took 5169.62 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 226.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 60.9 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:46,265 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:57:46,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:46,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:46,267 INFO L168 Benchmark]: Boogie Preprocessor took 99.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:57:46,267 INFO L168 Benchmark]: RCFGBuilder took 1367.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:46,268 INFO L168 Benchmark]: TraceAbstraction took 2789.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 88.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -133.7 MB). Peak memory consumption was 211.9 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:46,268 INFO L168 Benchmark]: Witness Printer took 91.70 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:46,271 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 705.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 111.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 99.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1367.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2789.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 88.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -133.7 MB). Peak memory consumption was 211.9 MB. Max. memory is 11.5 GB. * Witness Printer took 91.70 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 619]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L188] int pumpRunning = 0; [L189] int systemActive = 1; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L827] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] int splverifierCounter ; [L446] int tmp ; [L447] int tmp___0 ; [L448] int tmp___1 ; [L449] int tmp___2 ; [L452] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L454] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L456] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] tmp = __VERIFIER_nondet_int() [L464] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] COND TRUE waterLevel < 2 [L531] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L472] tmp___0 = __VERIFIER_nondet_int() [L474] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L482] tmp___2 = __VERIFIER_nondet_int() [L484] COND FALSE !(\read(tmp___2)) [L488] tmp___1 = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L439] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L196] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L203] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L625] int tmp ; [L626] int tmp___0 ; [L627] int tmp___1 ; [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L631] tmp = isMethaneLevelCritical() [L633] COND FALSE !(\read(tmp)) [L583] int retValue_acc ; [L586] retValue_acc = waterLevel [L587] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L637] tmp___0 = getWaterLevel() [L639] COND TRUE tmp___0 == 2 [L346] int retValue_acc ; [L349] retValue_acc = pumpRunning [L350] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L641] tmp___1 = isPumpRunning() [L643] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L619] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 233 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 867 SDtfs, 1048 SDslu, 972 SDs, 0 SdLazy, 89 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 374 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 5641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...