./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e896c9575d2274fe1bd6f66c7235e6d3190661d ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e896c9575d2274fe1bd6f66c7235e6d3190661d .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-a4ecdab [2020-11-22 12:59:38,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:59:38,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:59:38,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:59:38,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:59:38,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:59:38,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:59:38,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:59:38,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:59:38,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:59:38,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:59:38,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:59:38,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:59:38,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:59:38,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:59:38,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:59:38,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:59:38,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:59:38,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:59:38,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:59:38,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:59:38,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:59:38,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:59:38,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:59:38,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:59:38,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:59:38,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:59:38,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:59:38,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:59:38,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:59:38,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:59:38,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:59:38,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:59:38,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:59:38,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:59:38,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:59:38,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:59:38,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:59:38,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:59:38,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:59:38,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:59:38,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:59:38,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:59:38,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:59:38,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:59:38,787 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:59:38,787 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:59:38,788 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:59:38,788 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:59:38,788 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:59:38,788 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:59:38,789 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:59:38,789 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:59:38,789 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:59:38,790 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:59:38,790 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:59:38,790 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:59:38,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:59:38,791 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:59:38,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:59:38,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:59:38,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:59:38,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:59:38,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:59:38,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:59:38,793 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:59:38,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:59:38,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:59:38,794 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:59:38,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:59:38,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:59:38,795 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:59:38,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:59:38,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:38,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:59:38,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:59:38,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:59:38,796 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:59:38,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:59:38,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:59:38,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:59:38,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:59:38,797 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e896c9575d2274fe1bd6f66c7235e6d3190661d [2020-11-22 12:59:39,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:59:39,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:59:39,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:59:39,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:59:39,094 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:59:39,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2020-11-22 12:59:39,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/data/a918f810f/f2e8f1cf45514130ace810936d336fba/FLAG909d78bcf [2020-11-22 12:59:39,630 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:59:39,631 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2020-11-22 12:59:39,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/data/a918f810f/f2e8f1cf45514130ace810936d336fba/FLAG909d78bcf [2020-11-22 12:59:39,982 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/data/a918f810f/f2e8f1cf45514130ace810936d336fba [2020-11-22 12:59:39,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:59:39,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:59:39,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:39,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:59:39,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:59:39,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:39" (1/1) ... [2020-11-22 12:59:39,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce328c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:39, skipping insertion in model container [2020-11-22 12:59:39,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:39" (1/1) ... [2020-11-22 12:59:40,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:59:40,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:40,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:40,441 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 12:59:40,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@deec4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:40, skipping insertion in model container [2020-11-22 12:59:40,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:40,444 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:59:40,447 INFO L168 Benchmark]: Toolchain (without parser) took 458.82 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 47.1 MB in the beginning and 71.0 MB in the end (delta: -23.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:40,448 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 81.8 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:40,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.31 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 46.9 MB in the beginning and 71.0 MB in the end (delta: -24.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:40,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 81.8 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 456.31 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 46.9 MB in the beginning and 71.0 MB in the end (delta: -24.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 70]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:59:42,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:59:42,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:59:42,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:59:42,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:59:42,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:59:42,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:59:42,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:59:42,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:59:42,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:59:42,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:59:42,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:59:42,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:59:42,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:59:42,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:59:42,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:59:42,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:59:42,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:59:42,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:59:42,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:59:42,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:59:42,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:59:42,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:59:42,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:59:42,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:59:42,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:59:42,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:59:42,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:59:42,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:59:42,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:59:42,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:59:42,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:59:42,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:59:42,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:59:42,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:59:42,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:59:42,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:59:42,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:59:42,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:59:42,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:59:42,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:59:42,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:59:42,725 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:59:42,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:59:42,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:59:42,727 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:59:42,727 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:59:42,727 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:59:42,728 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:59:42,728 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:59:42,728 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:59:42,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:59:42,729 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:59:42,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:59:42,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:59:42,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:59:42,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:59:42,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:59:42,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:59:42,731 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:59:42,731 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:59:42,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:59:42,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:59:42,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:59:42,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:59:42,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:59:42,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:59:42,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:59:42,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:59:42,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:42,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:59:42,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:59:42,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:59:42,734 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:59:42,734 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:59:42,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:59:42,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:59:42,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:59:42,735 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e896c9575d2274fe1bd6f66c7235e6d3190661d [2020-11-22 12:59:43,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:59:43,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:59:43,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:59:43,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:59:43,152 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:59:43,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2020-11-22 12:59:43,233 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/data/888dae614/bcc046b467894462bc1fd00328c26d1a/FLAG8a0223f3a [2020-11-22 12:59:43,925 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:59:43,926 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2020-11-22 12:59:43,938 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/data/888dae614/bcc046b467894462bc1fd00328c26d1a/FLAG8a0223f3a [2020-11-22 12:59:44,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/data/888dae614/bcc046b467894462bc1fd00328c26d1a [2020-11-22 12:59:44,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:59:44,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:59:44,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:44,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:59:44,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:59:44,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:44" (1/1) ... [2020-11-22 12:59:44,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181fe589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44, skipping insertion in model container [2020-11-22 12:59:44,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:44" (1/1) ... [2020-11-22 12:59:44,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:59:44,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:44,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:44,698 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:59:44,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:44,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:44,838 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:59:44,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:44,954 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:59:44,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44 WrapperNode [2020-11-22 12:59:44,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:44,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:44,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:59:44,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:59:44,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44" (1/1) ... [2020-11-22 12:59:44,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44" (1/1) ... [2020-11-22 12:59:45,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:45,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:59:45,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:59:45,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:59:45,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44" (1/1) ... [2020-11-22 12:59:45,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44" (1/1) ... [2020-11-22 12:59:45,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44" (1/1) ... [2020-11-22 12:59:45,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44" (1/1) ... [2020-11-22 12:59:45,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44" (1/1) ... [2020-11-22 12:59:45,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44" (1/1) ... [2020-11-22 12:59:45,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44" (1/1) ... [2020-11-22 12:59:45,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:59:45,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:59:45,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:59:45,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:59:45,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/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 [2020-11-22 12:59:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:59:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:59:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:59:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:59:47,812 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:59:47,812 INFO L298 CfgBuilder]: Removed 120 assume(true) statements. [2020-11-22 12:59:47,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:47 BoogieIcfgContainer [2020-11-22 12:59:47,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:59:47,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:59:47,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:59:47,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:59:47,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:59:44" (1/3) ... [2020-11-22 12:59:47,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c67761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:47, skipping insertion in model container [2020-11-22 12:59:47,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:44" (2/3) ... [2020-11-22 12:59:47,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c67761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:47, skipping insertion in model container [2020-11-22 12:59:47,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:47" (3/3) ... [2020-11-22 12:59:47,827 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-11-22 12:59:47,838 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:59:47,843 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:59:47,858 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:59:47,896 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:59:47,896 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:59:47,896 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:59:47,896 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:59:47,897 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:59:47,897 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:59:47,897 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:59:47,897 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:59:47,914 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-11-22 12:59:47,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 12:59:47,919 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:47,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:47,920 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:47,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:47,926 INFO L82 PathProgramCache]: Analyzing trace with hash -742459830, now seen corresponding path program 1 times [2020-11-22 12:59:47,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:47,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311873688] [2020-11-22 12:59:47,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:48,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:59:48,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:48,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:48,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:48,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:48,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311873688] [2020-11-22 12:59:48,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:48,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:59:48,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24333744] [2020-11-22 12:59:48,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:59:48,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:48,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:59:48,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:59:48,204 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-11-22 12:59:48,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:48,231 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2020-11-22 12:59:48,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:59:48,232 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-22 12:59:48,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:48,242 INFO L225 Difference]: With dead ends: 171 [2020-11-22 12:59:48,242 INFO L226 Difference]: Without dead ends: 83 [2020-11-22 12:59:48,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:59:48,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-22 12:59:48,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-11-22 12:59:48,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-11-22 12:59:48,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2020-11-22 12:59:48,283 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2020-11-22 12:59:48,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:48,284 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-11-22 12:59:48,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:59:48,284 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2020-11-22 12:59:48,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 12:59:48,285 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:48,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:48,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:59:48,499 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:48,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:48,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1789216727, now seen corresponding path program 1 times [2020-11-22 12:59:48,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:48,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320169374] [2020-11-22 12:59:48,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:48,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:48,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:48,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:48,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:48,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:48,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320169374] [2020-11-22 12:59:48,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:48,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:59:48,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251076279] [2020-11-22 12:59:48,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:59:48,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:48,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:59:48,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:48,744 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 4 states. [2020-11-22 12:59:48,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:48,765 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2020-11-22 12:59:48,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:48,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 12:59:48,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:48,768 INFO L225 Difference]: With dead ends: 83 [2020-11-22 12:59:48,769 INFO L226 Difference]: Without dead ends: 37 [2020-11-22 12:59:48,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:48,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-22 12:59:48,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-22 12:59:48,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-22 12:59:48,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-11-22 12:59:48,779 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2020-11-22 12:59:48,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:48,783 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-11-22 12:59:48,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:59:48,783 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-11-22 12:59:48,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 12:59:48,786 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:48,786 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] [2020-11-22 12:59:48,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:59:48,999 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:48,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:48,999 INFO L82 PathProgramCache]: Analyzing trace with hash -2126819203, now seen corresponding path program 1 times [2020-11-22 12:59:49,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:49,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166671149] [2020-11-22 12:59:49,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:49,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:49,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:49,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:49,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:49,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166671149] [2020-11-22 12:59:49,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:49,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:59:49,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858485195] [2020-11-22 12:59:49,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:59:49,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:49,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:59:49,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:49,238 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 4 states. [2020-11-22 12:59:49,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:49,249 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2020-11-22 12:59:49,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:49,250 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-22 12:59:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:49,251 INFO L225 Difference]: With dead ends: 68 [2020-11-22 12:59:49,251 INFO L226 Difference]: Without dead ends: 37 [2020-11-22 12:59:49,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:49,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-22 12:59:49,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-22 12:59:49,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-22 12:59:49,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2020-11-22 12:59:49,261 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2020-11-22 12:59:49,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:49,261 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2020-11-22 12:59:49,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:59:49,261 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2020-11-22 12:59:49,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-22 12:59:49,263 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:49,263 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] [2020-11-22 12:59:49,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:59:49,481 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:49,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:49,481 INFO L82 PathProgramCache]: Analyzing trace with hash -306622024, now seen corresponding path program 1 times [2020-11-22 12:59:49,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:49,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207501530] [2020-11-22 12:59:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:49,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:49,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:49,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:49,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207501530] [2020-11-22 12:59:49,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:49,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:59:49,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892998788] [2020-11-22 12:59:49,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:59:49,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:49,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:59:49,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:59:49,711 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2020-11-22 12:59:49,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:49,778 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2020-11-22 12:59:49,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:49,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-22 12:59:49,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:49,780 INFO L225 Difference]: With dead ends: 89 [2020-11-22 12:59:49,780 INFO L226 Difference]: Without dead ends: 58 [2020-11-22 12:59:49,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:59:49,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-22 12:59:49,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-11-22 12:59:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-22 12:59:49,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2020-11-22 12:59:49,793 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2020-11-22 12:59:49,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:49,793 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2020-11-22 12:59:49,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:59:49,794 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2020-11-22 12:59:49,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-22 12:59:49,795 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:49,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:50,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:59:50,015 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:50,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:50,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1880803796, now seen corresponding path program 1 times [2020-11-22 12:59:50,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:50,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282325729] [2020-11-22 12:59:50,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:50,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:59:50,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:50,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:50,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:50,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282325729] [2020-11-22 12:59:50,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:50,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 12:59:50,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809544259] [2020-11-22 12:59:50,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:59:50,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:50,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:59:50,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:59:50,274 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 5 states. [2020-11-22 12:59:50,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:50,413 INFO L93 Difference]: Finished difference Result 266 states and 385 transitions. [2020-11-22 12:59:50,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 12:59:50,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-22 12:59:50,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:50,417 INFO L225 Difference]: With dead ends: 266 [2020-11-22 12:59:50,417 INFO L226 Difference]: Without dead ends: 216 [2020-11-22 12:59:50,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:59:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-11-22 12:59:50,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 100. [2020-11-22 12:59:50,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-22 12:59:50,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 139 transitions. [2020-11-22 12:59:50,438 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 139 transitions. Word has length 29 [2020-11-22 12:59:50,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:50,438 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 139 transitions. [2020-11-22 12:59:50,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:59:50,439 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 139 transitions. [2020-11-22 12:59:50,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 12:59:50,440 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:50,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:50,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:59:50,656 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:50,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:50,656 INFO L82 PathProgramCache]: Analyzing trace with hash 634718134, now seen corresponding path program 1 times [2020-11-22 12:59:50,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:50,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950911108] [2020-11-22 12:59:50,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:50,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:59:50,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:50,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:50,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:50,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950911108] [2020-11-22 12:59:50,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:50,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:59:50,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494650679] [2020-11-22 12:59:50,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:59:50,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:50,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:59:50,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:59:50,916 INFO L87 Difference]: Start difference. First operand 100 states and 139 transitions. Second operand 5 states. [2020-11-22 12:59:51,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:51,092 INFO L93 Difference]: Finished difference Result 280 states and 394 transitions. [2020-11-22 12:59:51,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 12:59:51,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-22 12:59:51,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:51,095 INFO L225 Difference]: With dead ends: 280 [2020-11-22 12:59:51,095 INFO L226 Difference]: Without dead ends: 278 [2020-11-22 12:59:51,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:59:51,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-11-22 12:59:51,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2020-11-22 12:59:51,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-22 12:59:51,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2020-11-22 12:59:51,111 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 30 [2020-11-22 12:59:51,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:51,112 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2020-11-22 12:59:51,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:59:51,112 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2020-11-22 12:59:51,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 12:59:51,113 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:51,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:51,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 12:59:51,330 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:51,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:51,330 INFO L82 PathProgramCache]: Analyzing trace with hash 719357973, now seen corresponding path program 1 times [2020-11-22 12:59:51,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:51,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131502867] [2020-11-22 12:59:51,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:51,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:59:51,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:51,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:51,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:51,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131502867] [2020-11-22 12:59:51,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:51,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:59:51,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819207936] [2020-11-22 12:59:51,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:59:51,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:51,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:59:51,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:59:51,569 INFO L87 Difference]: Start difference. First operand 100 states and 138 transitions. Second operand 5 states. [2020-11-22 12:59:51,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:51,652 INFO L93 Difference]: Finished difference Result 270 states and 372 transitions. [2020-11-22 12:59:51,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:59:51,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-11-22 12:59:51,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:51,656 INFO L225 Difference]: With dead ends: 270 [2020-11-22 12:59:51,657 INFO L226 Difference]: Without dead ends: 176 [2020-11-22 12:59:51,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:59:51,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-11-22 12:59:51,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 106. [2020-11-22 12:59:51,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-22 12:59:51,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2020-11-22 12:59:51,682 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 33 [2020-11-22 12:59:51,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:51,685 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2020-11-22 12:59:51,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:59:51,685 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2020-11-22 12:59:51,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 12:59:51,687 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:51,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:51,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 12:59:51,894 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:51,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:51,894 INFO L82 PathProgramCache]: Analyzing trace with hash 132551959, now seen corresponding path program 1 times [2020-11-22 12:59:51,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:51,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847004145] [2020-11-22 12:59:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:52,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 12:59:52,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:52,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:52,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847004145] [2020-11-22 12:59:52,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:52,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 12:59:52,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873100714] [2020-11-22 12:59:52,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 12:59:52,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:52,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 12:59:52,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 12:59:52,151 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 6 states. [2020-11-22 12:59:52,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:52,214 INFO L93 Difference]: Finished difference Result 288 states and 390 transitions. [2020-11-22 12:59:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:59:52,214 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-11-22 12:59:52,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:52,216 INFO L225 Difference]: With dead ends: 288 [2020-11-22 12:59:52,216 INFO L226 Difference]: Without dead ends: 188 [2020-11-22 12:59:52,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:59:52,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-11-22 12:59:52,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 110. [2020-11-22 12:59:52,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-11-22 12:59:52,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 148 transitions. [2020-11-22 12:59:52,247 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 148 transitions. Word has length 33 [2020-11-22 12:59:52,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:52,248 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 148 transitions. [2020-11-22 12:59:52,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 12:59:52,248 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2020-11-22 12:59:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 12:59:52,249 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:52,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:52,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 12:59:52,450 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:52,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:52,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1147311719, now seen corresponding path program 1 times [2020-11-22 12:59:52,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:52,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569964374] [2020-11-22 12:59:52,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:52,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:52,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:52,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:52,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:52,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569964374] [2020-11-22 12:59:52,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:52,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:59:52,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857168711] [2020-11-22 12:59:52,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:59:52,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:52,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:59:52,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:52,669 INFO L87 Difference]: Start difference. First operand 110 states and 148 transitions. Second operand 4 states. [2020-11-22 12:59:52,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:52,744 INFO L93 Difference]: Finished difference Result 346 states and 468 transitions. [2020-11-22 12:59:52,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:59:52,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-11-22 12:59:52,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:52,747 INFO L225 Difference]: With dead ends: 346 [2020-11-22 12:59:52,747 INFO L226 Difference]: Without dead ends: 242 [2020-11-22 12:59:52,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:52,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-11-22 12:59:52,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 192. [2020-11-22 12:59:52,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-11-22 12:59:52,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 257 transitions. [2020-11-22 12:59:52,795 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 257 transitions. Word has length 33 [2020-11-22 12:59:52,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:52,796 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 257 transitions. [2020-11-22 12:59:52,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:59:52,796 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 257 transitions. [2020-11-22 12:59:52,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-22 12:59:52,799 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:52,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:53,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 12:59:53,014 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:53,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:53,014 INFO L82 PathProgramCache]: Analyzing trace with hash 9984219, now seen corresponding path program 1 times [2020-11-22 12:59:53,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:53,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972331760] [2020-11-22 12:59:53,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:53,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 12:59:53,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:53,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:53,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:53,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972331760] [2020-11-22 12:59:53,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:53,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-22 12:59:53,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122909569] [2020-11-22 12:59:53,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 12:59:53,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:53,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 12:59:53,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:59:53,317 INFO L87 Difference]: Start difference. First operand 192 states and 257 transitions. Second operand 10 states. [2020-11-22 12:59:55,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:55,003 INFO L93 Difference]: Finished difference Result 788 states and 1036 transitions. [2020-11-22 12:59:55,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-22 12:59:55,004 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-11-22 12:59:55,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:55,008 INFO L225 Difference]: With dead ends: 788 [2020-11-22 12:59:55,008 INFO L226 Difference]: Without dead ends: 602 [2020-11-22 12:59:55,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-11-22 12:59:55,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-11-22 12:59:55,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 192. [2020-11-22 12:59:55,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-11-22 12:59:55,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 252 transitions. [2020-11-22 12:59:55,041 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 252 transitions. Word has length 34 [2020-11-22 12:59:55,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:55,041 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 252 transitions. [2020-11-22 12:59:55,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 12:59:55,042 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-11-22 12:59:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-22 12:59:55,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:55,043 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-22 12:59:55,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 12:59:55,264 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:55,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:55,264 INFO L82 PathProgramCache]: Analyzing trace with hash 977354617, now seen corresponding path program 1 times [2020-11-22 12:59:55,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:55,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061520233] [2020-11-22 12:59:55,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:59:56,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:59:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:59:57,645 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:59:57,841 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:59:57,841 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:59:58,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-22 12:59:58,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:59:58 BoogieIcfgContainer [2020-11-22 12:59:58,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:59:58,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:59:58,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:59:58,240 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:59:58,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:47" (3/4) ... [2020-11-22 12:59:58,244 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:59:58,410 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_047a7b0e-9832-4621-ac8b-35a84ac641ad/bin/utaipan/witness.graphml [2020-11-22 12:59:58,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:59:58,412 INFO L168 Benchmark]: Toolchain (without parser) took 14168.90 ms. Allocated memory was 52.4 MB in the beginning and 104.9 MB in the end (delta: 52.4 MB). Free memory was 28.1 MB in the beginning and 70.9 MB in the end (delta: -42.8 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:58,412 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:58,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.59 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 36.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:58,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.19 ms. Allocated memory is still 69.2 MB. Free memory was 36.1 MB in the beginning and 51.0 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:58,414 INFO L168 Benchmark]: Boogie Preprocessor took 41.10 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 48.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:58,414 INFO L168 Benchmark]: RCFGBuilder took 2727.32 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 48.6 MB in the beginning and 63.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:58,415 INFO L168 Benchmark]: TraceAbstraction took 10423.64 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 62.6 MB in the beginning and 33.0 MB in the end (delta: 29.6 MB). Peak memory consumption was 48.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:58,415 INFO L168 Benchmark]: Witness Printer took 170.29 ms. Allocated memory is still 104.9 MB. Free memory was 33.0 MB in the beginning and 70.9 MB in the end (delta: -37.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:58,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 706.59 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 36.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.19 ms. Allocated memory is still 69.2 MB. Free memory was 36.1 MB in the beginning and 51.0 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.10 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 48.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2727.32 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 48.6 MB in the beginning and 63.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10423.64 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 62.6 MB in the beginning and 33.0 MB in the end (delta: 29.6 MB). Peak memory consumption was 48.5 MB. Max. memory is 16.1 GB. * Witness Printer took 170.29 ms. Allocated memory is still 104.9 MB. Free memory was 33.0 MB in the beginning and 70.9 MB in the end (delta: -37.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L482] int waterLevel = 1; [L483] int methaneLevelCritical = 0; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L751] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] int retValue_acc ; [L828] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L876] int retValue_acc ; [L879] retValue_acc = 1 [L880] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L834] tmp = valid_product() [L836] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L500] COND TRUE waterLevel < 2 [L501] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L588] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE \read(systemActive) [L617] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND TRUE ! pumpRunning [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; [L562] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L565] COND FALSE !(waterLevel < 2) [L569] retValue_acc = 0 [L570] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp = isHighWaterSensorDry() [L740] COND FALSE !(\read(tmp)) [L743] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] tmp = isHighWaterLevel() [L624] COND TRUE \read(tmp) [L651] int tmp ; [L676] int retValue_acc ; [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] tmp = isMethaneAlarm() [L657] COND FALSE !(\read(tmp)) [L645] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L895] int tmp ; [L896] int tmp___0 ; [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] tmp = isMethaneLevelCritical() [L902] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L422] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L424] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L430] tmp = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L512] COND FALSE !(\read(methaneLevelCritical)) [L515] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L588] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L488] COND TRUE waterLevel > 0 [L489] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L595] COND TRUE \read(systemActive) [L617] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L620] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L895] int tmp ; [L896] int tmp___0 ; [L521] int retValue_acc ; [L524] retValue_acc = methaneLevelCritical [L525] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] tmp = isMethaneLevelCritical() [L902] COND TRUE \read(tmp) [L687] int retValue_acc ; [L690] retValue_acc = pumpRunning [L691] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L904] tmp___0 = isPumpRunning() [L906] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec1_product41.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 90 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.1s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 801 SDtfs, 1138 SDslu, 1870 SDs, 0 SdLazy, 219 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 549 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 904 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 28593 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2056 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...