./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE --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 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE --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 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:20:26,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:20:26,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:20:26,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:20:26,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:20:26,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:20:26,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:20:26,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:20:26,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:20:26,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:20:26,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:20:26,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:20:26,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:20:26,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:20:26,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:20:26,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:20:26,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:20:26,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:20:26,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:20:26,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:20:26,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:20:26,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:20:26,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:20:26,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:20:26,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:20:26,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:20:26,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:20:26,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:20:26,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:20:26,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:20:26,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:20:26,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:20:26,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:20:26,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:20:26,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:20:26,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:20:26,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:20:26,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:20:26,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:20:26,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:20:26,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:20:26,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:20:26,721 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:20:26,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:20:26,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:20:26,723 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:20:26,724 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:20:26,724 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:20:26,724 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:20:26,724 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:20:26,724 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:20:26,725 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:20:26,726 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:20:26,726 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:20:26,726 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:20:26,727 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:20:26,727 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:20:26,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:20:26,728 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:20:26,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:20:26,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:20:26,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:20:26,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:20:26,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:20:26,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:20:26,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:20:26,730 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:20:26,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:20:26,730 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:20:26,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:20:26,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:20:26,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:20:26,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:20:26,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:20:26,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:20:26,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:20:26,733 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:20:26,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:20:26,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:20:26,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:20:26,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:20:26,734 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_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e [2021-10-24 10:20:27,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:20:27,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:20:27,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:20:27,052 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:20:27,053 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:20:27,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2021-10-24 10:20:27,123 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/data/8646551ba/011e2c98c3e54aa2aab737ef2012c273/FLAG8d706612e [2021-10-24 10:20:27,691 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:20:27,691 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2021-10-24 10:20:27,705 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/data/8646551ba/011e2c98c3e54aa2aab737ef2012c273/FLAG8d706612e [2021-10-24 10:20:27,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/data/8646551ba/011e2c98c3e54aa2aab737ef2012c273 [2021-10-24 10:20:27,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:20:27,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:20:27,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:20:27,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:20:27,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:20:27,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:20:27" (1/1) ... [2021-10-24 10:20:27,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5860736e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:27, skipping insertion in model container [2021-10-24 10:20:27,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:20:27" (1/1) ... [2021-10-24 10:20:27,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:20:28,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:20:28,425 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2021-10-24 10:20:28,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:20:28,450 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) [2021-10-24 10:20:28,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3af0057f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:28, skipping insertion in model container [2021-10-24 10:20:28,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:20:28,458 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:20:28,461 INFO L168 Benchmark]: Toolchain (without parser) took 502.38 ms. Allocated memory is still 144.7 MB. Free memory was 111.8 MB in the beginning and 116.3 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:20:28,462 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 47.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:20:28,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.05 ms. Allocated memory is still 144.7 MB. Free memory was 111.4 MB in the beginning and 116.3 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:20:28,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 47.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 497.05 ms. Allocated memory is still 144.7 MB. Free memory was 111.4 MB in the beginning and 116.3 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 663]: 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 0.2.1-dev-e943c26 [2021-10-24 10:20:30,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:20:30,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:20:30,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:20:30,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:20:30,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:20:30,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:20:30,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:20:30,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:20:30,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:20:30,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:20:30,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:20:30,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:20:30,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:20:30,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:20:30,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:20:30,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:20:30,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:20:30,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:20:30,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:20:30,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:20:30,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:20:30,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:20:30,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:20:30,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:20:30,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:20:30,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:20:30,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:20:30,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:20:30,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:20:30,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:20:30,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:20:30,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:20:30,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:20:30,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:20:30,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:20:30,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:20:30,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:20:30,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:20:30,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:20:30,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:20:30,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:20:30,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:20:30,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:20:30,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:20:30,856 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:20:30,856 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:20:30,856 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:20:30,857 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:20:30,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:20:30,857 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:20:30,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:20:30,860 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:20:30,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:20:30,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:20:30,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:20:30,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:20:30,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:20:30,861 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:20:30,861 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:20:30,861 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:20:30,862 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:20:30,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:20:30,862 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:20:30,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:20:30,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:20:30,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:20:30,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:20:30,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:20:30,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:20:30,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:20:30,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:20:30,864 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:20:30,864 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:20:30,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:20:30,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:20:30,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:20:30,866 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_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e [2021-10-24 10:20:31,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:20:31,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:20:31,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:20:31,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:20:31,331 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:20:31,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2021-10-24 10:20:31,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/data/3559464b9/be02b6f872ae4595946fbc6df47abf0c/FLAG107439394 [2021-10-24 10:20:31,979 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:20:31,980 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2021-10-24 10:20:31,995 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/data/3559464b9/be02b6f872ae4595946fbc6df47abf0c/FLAG107439394 [2021-10-24 10:20:32,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/data/3559464b9/be02b6f872ae4595946fbc6df47abf0c [2021-10-24 10:20:32,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:20:32,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:20:32,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:20:32,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:20:32,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:20:32,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:32,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b1efb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32, skipping insertion in model container [2021-10-24 10:20:32,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:32,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:20:32,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:20:32,672 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2021-10-24 10:20:32,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:20:32,696 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:20:32,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:20:32,775 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2021-10-24 10:20:32,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:20:32,781 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:20:32,860 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2021-10-24 10:20:32,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:20:32,903 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:20:32,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32 WrapperNode [2021-10-24 10:20:32,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:20:32,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:20:32,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:20:32,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:20:32,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:32,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:33,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:20:33,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:20:33,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:20:33,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:20:33,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:33,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:33,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:33,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:33,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:33,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:33,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:33,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:20:33,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:20:33,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:20:33,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:20:33,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32" (1/1) ... [2021-10-24 10:20:33,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:20:33,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:20:33,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:20:33,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:20:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:20:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:20:33,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:20:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:20:35,247 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:20:35,247 INFO L299 CfgBuilder]: Removed 164 assume(true) statements. [2021-10-24 10:20:35,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:20:35 BoogieIcfgContainer [2021-10-24 10:20:35,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:20:35,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:20:35,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:20:35,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:20:35,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:20:32" (1/3) ... [2021-10-24 10:20:35,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb9397b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:20:35, skipping insertion in model container [2021-10-24 10:20:35,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:32" (2/3) ... [2021-10-24 10:20:35,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb9397b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:20:35, skipping insertion in model container [2021-10-24 10:20:35,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:20:35" (3/3) ... [2021-10-24 10:20:35,257 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2021-10-24 10:20:35,263 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:20:35,263 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 10:20:35,331 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:20:35,339 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:20:35,340 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 10:20:35,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 119 states have (on average 1.5714285714285714) internal successors, (187), 122 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:35,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:20:35,384 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:35,385 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:35,385 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:35,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:35,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1471206820, now seen corresponding path program 1 times [2021-10-24 10:20:35,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:35,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780313163] [2021-10-24 10:20:35,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:35,409 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:35,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:35,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:35,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:20:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:35,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:20:35,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:35,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:35,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:35,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:35,820 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:35,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780313163] [2021-10-24 10:20:35,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780313163] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:35,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:35,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:20:35,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801965833] [2021-10-24 10:20:35,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:20:35,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:35,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:20:35,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:20:35,848 INFO L87 Difference]: Start difference. First operand has 123 states, 119 states have (on average 1.5714285714285714) internal successors, (187), 122 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:35,902 INFO L93 Difference]: Finished difference Result 239 states and 366 transitions. [2021-10-24 10:20:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:20:35,903 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 10:20:35,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:35,918 INFO L225 Difference]: With dead ends: 239 [2021-10-24 10:20:35,918 INFO L226 Difference]: Without dead ends: 119 [2021-10-24 10:20:35,923 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:20:35,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-24 10:20:35,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-24 10:20:35,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.5086206896551724) internal successors, (175), 118 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:35,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2021-10-24 10:20:35,969 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 18 [2021-10-24 10:20:35,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:35,970 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2021-10-24 10:20:35,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2021-10-24 10:20:35,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:20:35,971 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:35,972 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:35,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:36,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:36,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:36,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:36,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1252370851, now seen corresponding path program 1 times [2021-10-24 10:20:36,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:36,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005119174] [2021-10-24 10:20:36,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:36,186 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:36,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:36,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:36,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:20:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:36,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:20:36,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:36,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:36,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:36,542 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:36,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005119174] [2021-10-24 10:20:36,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005119174] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:36,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:36,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:20:36,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319783151] [2021-10-24 10:20:36,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:36,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:36,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:36,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:36,550 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:36,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:36,577 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2021-10-24 10:20:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:36,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 10:20:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:36,579 INFO L225 Difference]: With dead ends: 119 [2021-10-24 10:20:36,579 INFO L226 Difference]: Without dead ends: 51 [2021-10-24 10:20:36,581 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:36,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-24 10:20:36,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-24 10:20:36,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.48) internal successors, (74), 50 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:36,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2021-10-24 10:20:36,587 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2021-10-24 10:20:36,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:36,587 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2021-10-24 10:20:36,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:36,588 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2021-10-24 10:20:36,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:20:36,589 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:36,589 INFO L512 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] [2021-10-24 10:20:36,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:36,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:36,791 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:36,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:36,792 INFO L82 PathProgramCache]: Analyzing trace with hash 70895168, now seen corresponding path program 1 times [2021-10-24 10:20:36,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:36,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074465922] [2021-10-24 10:20:36,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:36,793 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:36,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:36,794 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:36,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:20:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:36,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:20:36,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:37,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:37,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:37,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:37,156 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:37,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074465922] [2021-10-24 10:20:37,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074465922] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:37,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:37,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:20:37,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617009527] [2021-10-24 10:20:37,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:37,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:37,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:37,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:37,159 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:37,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:37,209 INFO L93 Difference]: Finished difference Result 163 states and 244 transitions. [2021-10-24 10:20:37,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:37,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 10:20:37,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:37,212 INFO L225 Difference]: With dead ends: 163 [2021-10-24 10:20:37,212 INFO L226 Difference]: Without dead ends: 119 [2021-10-24 10:20:37,213 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:37,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-24 10:20:37,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 71. [2021-10-24 10:20:37,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.5) internal successors, (105), 70 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:37,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2021-10-24 10:20:37,224 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 24 [2021-10-24 10:20:37,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:37,224 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2021-10-24 10:20:37,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:37,225 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2021-10-24 10:20:37,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 10:20:37,226 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:37,226 INFO L512 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] [2021-10-24 10:20:37,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:37,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:37,440 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:37,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:37,441 INFO L82 PathProgramCache]: Analyzing trace with hash 2090863582, now seen corresponding path program 1 times [2021-10-24 10:20:37,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:37,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701781067] [2021-10-24 10:20:37,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:37,442 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:37,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:37,448 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:37,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:20:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:37,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:20:37,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:37,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:37,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:37,791 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:37,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701781067] [2021-10-24 10:20:37,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701781067] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:37,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:37,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:20:37,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096105550] [2021-10-24 10:20:37,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:37,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:37,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:37,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:37,794 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:37,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:37,858 INFO L93 Difference]: Finished difference Result 157 states and 235 transitions. [2021-10-24 10:20:37,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:37,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-24 10:20:37,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:37,860 INFO L225 Difference]: With dead ends: 157 [2021-10-24 10:20:37,860 INFO L226 Difference]: Without dead ends: 93 [2021-10-24 10:20:37,861 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:37,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-24 10:20:37,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2021-10-24 10:20:37,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.4555555555555555) internal successors, (131), 90 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2021-10-24 10:20:37,872 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 26 [2021-10-24 10:20:37,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:37,872 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2021-10-24 10:20:37,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:37,873 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2021-10-24 10:20:37,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:20:37,874 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:37,874 INFO L512 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] [2021-10-24 10:20:37,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:38,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:38,087 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:38,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:38,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1765382007, now seen corresponding path program 1 times [2021-10-24 10:20:38,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:38,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623284701] [2021-10-24 10:20:38,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:38,088 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:38,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:38,089 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:38,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:20:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:38,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:20:38,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:38,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:38,550 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:38,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623284701] [2021-10-24 10:20:38,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623284701] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:38,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:38,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 10:20:38,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725687857] [2021-10-24 10:20:38,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:38,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:38,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:38,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:38,552 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:38,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:38,655 INFO L93 Difference]: Finished difference Result 452 states and 663 transitions. [2021-10-24 10:20:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 10:20:38,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 10:20:38,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:38,659 INFO L225 Difference]: With dead ends: 452 [2021-10-24 10:20:38,659 INFO L226 Difference]: Without dead ends: 368 [2021-10-24 10:20:38,660 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 43.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:20:38,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-10-24 10:20:38,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 164. [2021-10-24 10:20:38,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 163 states have (on average 1.4294478527607362) internal successors, (233), 163 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 233 transitions. [2021-10-24 10:20:38,684 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 233 transitions. Word has length 27 [2021-10-24 10:20:38,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:38,685 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 233 transitions. [2021-10-24 10:20:38,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:38,685 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 233 transitions. [2021-10-24 10:20:38,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:20:38,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:38,687 INFO L512 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] [2021-10-24 10:20:38,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:38,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:38,903 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:38,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:38,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1095440129, now seen corresponding path program 1 times [2021-10-24 10:20:38,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:38,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796378396] [2021-10-24 10:20:38,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:38,905 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:38,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:38,906 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:38,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:20:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:39,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:20:39,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:39,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:39,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:39,325 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:39,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796378396] [2021-10-24 10:20:39,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796378396] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:39,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:39,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 10:20:39,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759960828] [2021-10-24 10:20:39,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:39,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:39,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:39,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:39,332 INFO L87 Difference]: Start difference. First operand 164 states and 233 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:39,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:39,511 INFO L93 Difference]: Finished difference Result 605 states and 865 transitions. [2021-10-24 10:20:39,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 10:20:39,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-24 10:20:39,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:39,515 INFO L225 Difference]: With dead ends: 605 [2021-10-24 10:20:39,515 INFO L226 Difference]: Without dead ends: 448 [2021-10-24 10:20:39,519 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 43.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:20:39,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2021-10-24 10:20:39,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 162. [2021-10-24 10:20:39,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.4099378881987579) internal successors, (227), 161 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:39,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 227 transitions. [2021-10-24 10:20:39,555 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 227 transitions. Word has length 28 [2021-10-24 10:20:39,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:39,555 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 227 transitions. [2021-10-24 10:20:39,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 227 transitions. [2021-10-24 10:20:39,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 10:20:39,564 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:39,564 INFO L512 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] [2021-10-24 10:20:39,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:39,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:39,777 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:39,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:39,777 INFO L82 PathProgramCache]: Analyzing trace with hash 494548661, now seen corresponding path program 1 times [2021-10-24 10:20:39,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:39,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074284594] [2021-10-24 10:20:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:39,779 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:39,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:39,780 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:39,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-24 10:20:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:40,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:20:40,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:40,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:40,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:40,199 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:40,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074284594] [2021-10-24 10:20:40,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074284594] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:40,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:40,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 10:20:40,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880860968] [2021-10-24 10:20:40,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:40,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:40,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:40,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:40,203 INFO L87 Difference]: Start difference. First operand 162 states and 227 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:40,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:40,295 INFO L93 Difference]: Finished difference Result 479 states and 665 transitions. [2021-10-24 10:20:40,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:20:40,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-24 10:20:40,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:40,299 INFO L225 Difference]: With dead ends: 479 [2021-10-24 10:20:40,299 INFO L226 Difference]: Without dead ends: 324 [2021-10-24 10:20:40,300 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:20:40,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-10-24 10:20:40,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 174. [2021-10-24 10:20:40,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.3815028901734103) internal successors, (239), 173 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 239 transitions. [2021-10-24 10:20:40,331 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 239 transitions. Word has length 33 [2021-10-24 10:20:40,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:40,331 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 239 transitions. [2021-10-24 10:20:40,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:40,332 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 239 transitions. [2021-10-24 10:20:40,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 10:20:40,333 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:40,333 INFO L512 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] [2021-10-24 10:20:40,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:40,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:40,553 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:40,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:40,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1195613239, now seen corresponding path program 1 times [2021-10-24 10:20:40,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:40,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319732111] [2021-10-24 10:20:40,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:40,555 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:40,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:40,557 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:40,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-24 10:20:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:40,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:20:40,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:40,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:40,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:40,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:40,990 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:40,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319732111] [2021-10-24 10:20:40,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319732111] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:40,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:40,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:20:40,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458415564] [2021-10-24 10:20:40,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:20:40,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:40,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:20:40,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:20:40,993 INFO L87 Difference]: Start difference. First operand 174 states and 239 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:41,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:41,085 INFO L93 Difference]: Finished difference Result 513 states and 699 transitions. [2021-10-24 10:20:41,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:20:41,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-24 10:20:41,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:41,088 INFO L225 Difference]: With dead ends: 513 [2021-10-24 10:20:41,088 INFO L226 Difference]: Without dead ends: 346 [2021-10-24 10:20:41,089 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 24.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:20:41,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2021-10-24 10:20:41,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 182. [2021-10-24 10:20:41,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 1.3646408839779005) internal successors, (247), 181 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:41,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2021-10-24 10:20:41,116 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 33 [2021-10-24 10:20:41,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:41,116 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2021-10-24 10:20:41,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:41,117 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2021-10-24 10:20:41,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 10:20:41,117 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:41,118 INFO L512 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] [2021-10-24 10:20:41,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:41,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:41,338 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:41,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:41,338 INFO L82 PathProgramCache]: Analyzing trace with hash 608807225, now seen corresponding path program 1 times [2021-10-24 10:20:41,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:41,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456778245] [2021-10-24 10:20:41,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:41,339 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:41,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:41,340 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:41,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 10:20:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:41,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:20:41,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:41,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:41,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:41,810 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:41,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456778245] [2021-10-24 10:20:41,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456778245] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:41,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:41,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 10:20:41,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377173077] [2021-10-24 10:20:41,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:41,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:41,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:41,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:41,814 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:41,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:41,913 INFO L93 Difference]: Finished difference Result 592 states and 807 transitions. [2021-10-24 10:20:41,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:41,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-24 10:20:41,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:41,918 INFO L225 Difference]: With dead ends: 592 [2021-10-24 10:20:41,918 INFO L226 Difference]: Without dead ends: 417 [2021-10-24 10:20:41,919 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:41,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-10-24 10:20:41,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 327. [2021-10-24 10:20:41,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 326 states have (on average 1.3496932515337423) internal successors, (440), 326 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:41,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 440 transitions. [2021-10-24 10:20:41,983 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 440 transitions. Word has length 33 [2021-10-24 10:20:41,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:41,985 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 440 transitions. [2021-10-24 10:20:41,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:41,985 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 440 transitions. [2021-10-24 10:20:41,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-24 10:20:41,987 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:41,987 INFO L512 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] [2021-10-24 10:20:42,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-10-24 10:20:42,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:42,200 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:42,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:42,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1791527943, now seen corresponding path program 1 times [2021-10-24 10:20:42,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:42,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693586778] [2021-10-24 10:20:42,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:42,202 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:42,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:42,203 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:42,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-24 10:20:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:42,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:20:42,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:42,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:42,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:42,703 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:42,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693586778] [2021-10-24 10:20:42,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693586778] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:42,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:42,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:20:42,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369208268] [2021-10-24 10:20:42,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:42,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:42,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:42,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:42,706 INFO L87 Difference]: Start difference. First operand 327 states and 440 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:42,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:42,809 INFO L93 Difference]: Finished difference Result 535 states and 716 transitions. [2021-10-24 10:20:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:42,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-24 10:20:42,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:42,814 INFO L225 Difference]: With dead ends: 535 [2021-10-24 10:20:42,814 INFO L226 Difference]: Without dead ends: 533 [2021-10-24 10:20:42,815 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:42,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2021-10-24 10:20:42,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 400. [2021-10-24 10:20:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 399 states have (on average 1.3734335839598997) internal successors, (548), 399 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 548 transitions. [2021-10-24 10:20:42,877 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 548 transitions. Word has length 34 [2021-10-24 10:20:42,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:42,877 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 548 transitions. [2021-10-24 10:20:42,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:42,878 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 548 transitions. [2021-10-24 10:20:42,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-24 10:20:42,880 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:42,880 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:42,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:43,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:43,093 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:43,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:43,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1315379813, now seen corresponding path program 1 times [2021-10-24 10:20:43,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:43,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792226426] [2021-10-24 10:20:43,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:43,095 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:43,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:43,096 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:43,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-24 10:20:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:43,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:20:43,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-24 10:20:43,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:43,840 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-24 10:20:43,840 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:43,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792226426] [2021-10-24 10:20:43,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792226426] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:20:43,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2138382293] [2021-10-24 10:20:43,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:43,841 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:20:43,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:20:43,844 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:20:43,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-24 10:20:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:44,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-24 10:20:44,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-24 10:20:44,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:44,796 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-24 10:20:44,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2138382293] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:20:44,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349138611] [2021-10-24 10:20:44,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:44,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:20:44,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:20:44,803 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:20:44,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-24 10:20:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:45,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:20:45,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:45,360 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-24 10:20:45,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-24 10:20:45,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349138611] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:20:45,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 10:20:45,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 5, 5, 5] total 8 [2021-10-24 10:20:45,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818405221] [2021-10-24 10:20:45,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 10:20:45,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:45,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 10:20:45,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:20:45,564 INFO L87 Difference]: Start difference. First operand 400 states and 548 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:50,309 INFO L93 Difference]: Finished difference Result 4400 states and 6003 transitions. [2021-10-24 10:20:50,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-24 10:20:50,310 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-24 10:20:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:50,334 INFO L225 Difference]: With dead ends: 4400 [2021-10-24 10:20:50,335 INFO L226 Difference]: Without dead ends: 4007 [2021-10-24 10:20:50,336 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 215.1ms TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2021-10-24 10:20:50,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4007 states. [2021-10-24 10:20:50,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4007 to 1175. [2021-10-24 10:20:50,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 1174 states have (on average 1.393526405451448) internal successors, (1636), 1174 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1636 transitions. [2021-10-24 10:20:50,541 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1636 transitions. Word has length 58 [2021-10-24 10:20:50,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:50,541 INFO L470 AbstractCegarLoop]: Abstraction has 1175 states and 1636 transitions. [2021-10-24 10:20:50,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1636 transitions. [2021-10-24 10:20:50,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-24 10:20:50,543 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:50,544 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:50,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:50,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:50,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-24 10:20:51,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:20:51,162 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:51,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:51,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1573545251, now seen corresponding path program 1 times [2021-10-24 10:20:51,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:51,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608436725] [2021-10-24 10:20:51,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:51,163 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:51,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:51,164 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:51,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-24 10:20:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:51,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:20:51,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:51,693 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 10:20:51,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:51,822 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 10:20:51,823 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:51,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608436725] [2021-10-24 10:20:51,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608436725] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:51,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:51,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 10:20:51,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151185081] [2021-10-24 10:20:51,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:20:51,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:51,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:20:51,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:20:51,825 INFO L87 Difference]: Start difference. First operand 1175 states and 1636 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:51,969 INFO L93 Difference]: Finished difference Result 1834 states and 2495 transitions. [2021-10-24 10:20:51,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:20:51,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-24 10:20:51,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:51,974 INFO L225 Difference]: With dead ends: 1834 [2021-10-24 10:20:51,975 INFO L226 Difference]: Without dead ends: 666 [2021-10-24 10:20:51,976 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 55.3ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:20:51,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-10-24 10:20:52,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 273. [2021-10-24 10:20:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 1.286764705882353) internal successors, (350), 272 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 350 transitions. [2021-10-24 10:20:52,032 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 350 transitions. Word has length 58 [2021-10-24 10:20:52,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:52,033 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 350 transitions. [2021-10-24 10:20:52,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,034 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 350 transitions. [2021-10-24 10:20:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-24 10:20:52,035 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:52,035 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:52,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:52,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:52,253 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:52,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:52,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1084126975, now seen corresponding path program 1 times [2021-10-24 10:20:52,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:52,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206228945] [2021-10-24 10:20:52,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:52,254 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:52,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:52,256 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:52,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-24 10:20:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:52,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:20:52,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:52,782 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:52,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:52,935 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:52,935 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:52,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206228945] [2021-10-24 10:20:52,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206228945] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:52,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:52,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:20:52,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32267582] [2021-10-24 10:20:52,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:52,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:52,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:52,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:52,940 INFO L87 Difference]: Start difference. First operand 273 states and 350 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:55,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:55,629 INFO L93 Difference]: Finished difference Result 538 states and 692 transitions. [2021-10-24 10:20:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:55,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-24 10:20:55,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:55,632 INFO L225 Difference]: With dead ends: 538 [2021-10-24 10:20:55,632 INFO L226 Difference]: Without dead ends: 272 [2021-10-24 10:20:55,633 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:55,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-10-24 10:20:55,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 271. [2021-10-24 10:20:55,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.2592592592592593) internal successors, (340), 270 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:55,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 340 transitions. [2021-10-24 10:20:55,672 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 340 transitions. Word has length 58 [2021-10-24 10:20:55,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:55,673 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 340 transitions. [2021-10-24 10:20:55,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:55,673 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 340 transitions. [2021-10-24 10:20:55,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-24 10:20:55,674 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:55,674 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:55,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-24 10:20:55,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:55,891 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:20:55,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:55,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1918630825, now seen corresponding path program 1 times [2021-10-24 10:20:55,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:20:55,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060236210] [2021-10-24 10:20:55,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:55,892 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:20:55,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:20:55,894 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:20:55,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-24 10:20:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:56,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:20:56,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:20:56,419 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-24 10:20:56,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:20:56,528 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-24 10:20:56,529 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:20:56,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060236210] [2021-10-24 10:20:56,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060236210] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:56,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:56,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:20:56,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087926741] [2021-10-24 10:20:56,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:56,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:20:56,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:56,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:56,531 INFO L87 Difference]: Start difference. First operand 271 states and 340 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:57,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:57,566 INFO L93 Difference]: Finished difference Result 527 states and 661 transitions. [2021-10-24 10:20:57,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:57,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-10-24 10:20:57,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:57,567 INFO L225 Difference]: With dead ends: 527 [2021-10-24 10:20:57,567 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 10:20:57,568 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:57,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 10:20:57,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 10:20:57,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:57,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 10:20:57,569 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-10-24 10:20:57,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:57,569 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 10:20:57,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:57,570 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 10:20:57,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 10:20:57,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:20:57,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:20:57,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:20:57,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-10-24 10:20:57,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:20:57,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 10:20:57,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:57,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:57,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:57,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:57,827 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:57,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:57,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:57,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:58,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:58,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:58,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:58,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:58,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:58,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:58,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:59,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:59,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:59,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:59,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:59,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:20:59,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:00,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:01,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:01,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:01,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:01,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:21:13,454 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1005) no Hoare annotation was computed. [2021-10-24 10:21:13,455 INFO L853 garLoopResultBuilder]: At program point L630(lines 625 633) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (not (= ~systemActive~0 (_ bv0 32)))) [2021-10-24 10:21:13,455 INFO L853 garLoopResultBuilder]: At program point L630-1(lines 625 633) the Hoare annotation is: false [2021-10-24 10:21:13,455 INFO L853 garLoopResultBuilder]: At program point L630-2(lines 625 633) the Hoare annotation is: false [2021-10-24 10:21:13,455 INFO L853 garLoopResultBuilder]: At program point L366-2(lines 366 380) the Hoare annotation is: false [2021-10-24 10:21:13,455 INFO L857 garLoopResultBuilder]: For program point L367(line 367) no Hoare annotation was computed. [2021-10-24 10:21:13,455 INFO L857 garLoopResultBuilder]: For program point L335(lines 335 341) no Hoare annotation was computed. [2021-10-24 10:21:13,456 INFO L853 garLoopResultBuilder]: At program point L335-1(lines 335 341) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv2 32)) .cse1) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1))) [2021-10-24 10:21:13,456 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,456 INFO L857 garLoopResultBuilder]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,456 INFO L857 garLoopResultBuilder]: For program point L302-3(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,456 INFO L857 garLoopResultBuilder]: For program point L302-5(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,456 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 110) no Hoare annotation was computed. [2021-10-24 10:21:13,457 INFO L857 garLoopResultBuilder]: For program point L302-6(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,457 INFO L853 garLoopResultBuilder]: At program point L104-1(lines 142 148) the Hoare annotation is: (let ((.cse6 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse2 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (not .cse6))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse5 .cse3 .cse4) (and .cse0 .cse1 .cse6 .cse4) (and .cse0 .cse6 .cse5 .cse4) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse3)))) [2021-10-24 10:21:13,457 INFO L857 garLoopResultBuilder]: For program point L302-8(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,457 INFO L857 garLoopResultBuilder]: For program point L302-9(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,457 INFO L857 garLoopResultBuilder]: For program point L302-11(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,457 INFO L857 garLoopResultBuilder]: For program point L302-12(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,458 INFO L857 garLoopResultBuilder]: For program point L302-14(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,458 INFO L857 garLoopResultBuilder]: For program point L302-15(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,458 INFO L857 garLoopResultBuilder]: For program point L302-17(lines 302 306) no Hoare annotation was computed. [2021-10-24 10:21:13,458 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 212) no Hoare annotation was computed. [2021-10-24 10:21:13,458 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 204 212) no Hoare annotation was computed. [2021-10-24 10:21:13,458 INFO L857 garLoopResultBuilder]: For program point L204-2(lines 204 212) no Hoare annotation was computed. [2021-10-24 10:21:13,459 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 374) no Hoare annotation was computed. [2021-10-24 10:21:13,459 INFO L857 garLoopResultBuilder]: For program point L370-1(lines 142 148) no Hoare annotation was computed. [2021-10-24 10:21:13,459 INFO L857 garLoopResultBuilder]: For program point L174(lines 174 191) no Hoare annotation was computed. [2021-10-24 10:21:13,459 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 174 191) no Hoare annotation was computed. [2021-10-24 10:21:13,459 INFO L857 garLoopResultBuilder]: For program point L174-2(lines 174 191) no Hoare annotation was computed. [2021-10-24 10:21:13,459 INFO L857 garLoopResultBuilder]: For program point L174-3(lines 174 191) no Hoare annotation was computed. [2021-10-24 10:21:13,460 INFO L857 garLoopResultBuilder]: For program point L174-4(lines 174 191) no Hoare annotation was computed. [2021-10-24 10:21:13,460 INFO L857 garLoopResultBuilder]: For program point L174-5(lines 174 191) no Hoare annotation was computed. [2021-10-24 10:21:13,460 INFO L857 garLoopResultBuilder]: For program point L538(lines 538 542) no Hoare annotation was computed. [2021-10-24 10:21:13,460 INFO L857 garLoopResultBuilder]: For program point L538-3(lines 538 542) no Hoare annotation was computed. [2021-10-24 10:21:13,460 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 1005) no Hoare annotation was computed. [2021-10-24 10:21:13,460 INFO L857 garLoopResultBuilder]: For program point L538-6(lines 538 542) no Hoare annotation was computed. [2021-10-24 10:21:13,461 INFO L853 garLoopResultBuilder]: At program point L142(lines 141 160) the Hoare annotation is: (let ((.cse5 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (not .cse5)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse4 .cse3) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse2) (and .cse0 .cse1 .cse5 .cse3)))) [2021-10-24 10:21:13,461 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2021-10-24 10:21:13,461 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 82) no Hoare annotation was computed. [2021-10-24 10:21:13,461 INFO L853 garLoopResultBuilder]: At program point L142-2(lines 141 160) the Hoare annotation is: false [2021-10-24 10:21:13,461 INFO L853 garLoopResultBuilder]: At program point L76-1(lines 76 82) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= ~waterLevel~0 (_ bv2 32)))) (or (and .cse0 .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse3 (not (= ~systemActive~0 (_ bv0 32)))))) [2021-10-24 10:21:13,462 INFO L853 garLoopResultBuilder]: At program point L142-3(lines 141 160) the Hoare annotation is: false [2021-10-24 10:21:13,462 INFO L853 garLoopResultBuilder]: At program point L308(lines 293 311) the Hoare annotation is: false [2021-10-24 10:21:13,462 INFO L853 garLoopResultBuilder]: At program point L308-1(lines 293 311) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32))) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse6 (not (= ULTIMATE.start_isHighWaterLevel_~tmp~3 (_ bv0 32)))) (.cse2 (not (= ~systemActive~0 (_ bv0 32)))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse5 .cse6 .cse2 .cse3) (and .cse0 .cse4 .cse5 (= ~waterLevel~0 (_ bv1 32)) .cse6 .cse2 .cse3))) [2021-10-24 10:21:13,462 INFO L853 garLoopResultBuilder]: At program point L308-2(lines 293 311) the Hoare annotation is: false [2021-10-24 10:21:13,462 INFO L853 garLoopResultBuilder]: At program point L308-3(lines 293 311) the Hoare annotation is: false [2021-10-24 10:21:13,463 INFO L853 garLoopResultBuilder]: At program point L308-4(lines 293 311) the Hoare annotation is: false [2021-10-24 10:21:13,463 INFO L853 garLoopResultBuilder]: At program point L308-5(lines 293 311) the Hoare annotation is: false [2021-10-24 10:21:13,463 INFO L857 garLoopResultBuilder]: For program point L474(lines 474 491) no Hoare annotation was computed. [2021-10-24 10:21:13,463 INFO L853 garLoopResultBuilder]: At program point L474-1(lines 1 1008) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= ~waterLevel~0 (_ bv2 32)))) (or (and .cse0 .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse3 (not (= ~systemActive~0 (_ bv0 32)))))) [2021-10-24 10:21:13,463 INFO L857 garLoopResultBuilder]: For program point L474-2(lines 474 491) no Hoare annotation was computed. [2021-10-24 10:21:13,463 INFO L853 garLoopResultBuilder]: At program point L474-3(lines 1 1008) the Hoare annotation is: false [2021-10-24 10:21:13,463 INFO L857 garLoopResultBuilder]: For program point L474-4(lines 474 491) no Hoare annotation was computed. [2021-10-24 10:21:13,464 INFO L853 garLoopResultBuilder]: At program point L474-5(lines 1 1008) the Hoare annotation is: false [2021-10-24 10:21:13,464 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 449) no Hoare annotation was computed. [2021-10-24 10:21:13,464 INFO L860 garLoopResultBuilder]: At program point L442-1(lines 442 449) the Hoare annotation is: true [2021-10-24 10:21:13,464 INFO L857 garLoopResultBuilder]: For program point L178(lines 178 186) no Hoare annotation was computed. [2021-10-24 10:21:13,464 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 178 186) no Hoare annotation was computed. [2021-10-24 10:21:13,464 INFO L857 garLoopResultBuilder]: For program point L178-2(lines 178 186) no Hoare annotation was computed. [2021-10-24 10:21:13,465 INFO L857 garLoopResultBuilder]: For program point L178-3(lines 178 186) no Hoare annotation was computed. [2021-10-24 10:21:13,465 INFO L857 garLoopResultBuilder]: For program point L178-4(lines 178 186) no Hoare annotation was computed. [2021-10-24 10:21:13,465 INFO L857 garLoopResultBuilder]: For program point L178-5(lines 178 186) no Hoare annotation was computed. [2021-10-24 10:21:13,465 INFO L853 garLoopResultBuilder]: At program point L575(lines 570 578) the Hoare annotation is: (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse2) (and .cse0 .cse3 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse4) (and .cse0 .cse3 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse4))) [2021-10-24 10:21:13,465 INFO L853 garLoopResultBuilder]: At program point L575-1(lines 570 578) the Hoare annotation is: false [2021-10-24 10:21:13,466 INFO L853 garLoopResultBuilder]: At program point L575-2(lines 570 578) the Hoare annotation is: false [2021-10-24 10:21:13,466 INFO L857 garLoopResultBuilder]: For program point L1005(line 1005) no Hoare annotation was computed. [2021-10-24 10:21:13,466 INFO L857 garLoopResultBuilder]: For program point L1005-1(line 1005) no Hoare annotation was computed. [2021-10-24 10:21:13,466 INFO L857 garLoopResultBuilder]: For program point L1005-2(line 1005) no Hoare annotation was computed. [2021-10-24 10:21:13,466 INFO L857 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-10-24 10:21:13,466 INFO L857 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-10-24 10:21:13,466 INFO L857 garLoopResultBuilder]: For program point L478-4(lines 478 488) no Hoare annotation was computed. [2021-10-24 10:21:13,467 INFO L857 garLoopResultBuilder]: For program point L479(lines 479 485) no Hoare annotation was computed. [2021-10-24 10:21:13,467 INFO L857 garLoopResultBuilder]: For program point L479-2(lines 479 485) no Hoare annotation was computed. [2021-10-24 10:21:13,467 INFO L857 garLoopResultBuilder]: For program point L479-4(lines 479 485) no Hoare annotation was computed. [2021-10-24 10:21:13,467 INFO L853 garLoopResultBuilder]: At program point L149(lines 149 155) the Hoare annotation is: (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse2) (and .cse0 .cse3 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse4) (and .cse0 .cse3 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse4))) [2021-10-24 10:21:13,467 INFO L853 garLoopResultBuilder]: At program point L116(lines 65 117) the Hoare annotation is: false [2021-10-24 10:21:13,467 INFO L853 garLoopResultBuilder]: At program point L149-1(lines 149 155) the Hoare annotation is: false [2021-10-24 10:21:13,468 INFO L853 garLoopResultBuilder]: At program point L149-2(lines 149 155) the Hoare annotation is: false [2021-10-24 10:21:13,468 INFO L853 garLoopResultBuilder]: At program point L414(lines 410 416) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 10:21:13,468 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 10:21:13,468 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 92) no Hoare annotation was computed. [2021-10-24 10:21:13,468 INFO L853 garLoopResultBuilder]: At program point L86-1(lines 86 92) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= ~waterLevel~0 (_ bv2 32)))) (or (and .cse0 .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse3 (not (= ~systemActive~0 (_ bv0 32)))))) [2021-10-24 10:21:13,468 INFO L857 garLoopResultBuilder]: For program point L615(lines 615 621) no Hoare annotation was computed. [2021-10-24 10:21:13,469 INFO L857 garLoopResultBuilder]: For program point L615-1(lines 615 621) no Hoare annotation was computed. [2021-10-24 10:21:13,469 INFO L857 garLoopResultBuilder]: For program point L615-2(lines 615 621) no Hoare annotation was computed. [2021-10-24 10:21:13,469 INFO L857 garLoopResultBuilder]: For program point L615-3(lines 615 621) no Hoare annotation was computed. [2021-10-24 10:21:13,469 INFO L857 garLoopResultBuilder]: For program point L615-4(lines 615 621) no Hoare annotation was computed. [2021-10-24 10:21:13,469 INFO L857 garLoopResultBuilder]: For program point L615-5(lines 615 621) no Hoare annotation was computed. [2021-10-24 10:21:13,469 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 554) no Hoare annotation was computed. [2021-10-24 10:21:13,470 INFO L860 garLoopResultBuilder]: At program point L451(lines 432 454) the Hoare annotation is: true [2021-10-24 10:21:13,470 INFO L853 garLoopResultBuilder]: At program point L253(lines 248 256) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) (not (= ~systemActive~0 (_ bv0 32)))) (and .cse0 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3) (and .cse0 .cse1 .cse2 .cse3))) [2021-10-24 10:21:13,470 INFO L853 garLoopResultBuilder]: At program point L253-1(lines 248 256) the Hoare annotation is: false [2021-10-24 10:21:13,470 INFO L853 garLoopResultBuilder]: At program point L253-2(lines 248 256) the Hoare annotation is: false [2021-10-24 10:21:13,470 INFO L853 garLoopResultBuilder]: At program point L518(lines 1 1008) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 10:21:13,470 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 325) no Hoare annotation was computed. [2021-10-24 10:21:13,471 INFO L857 garLoopResultBuilder]: For program point L321-2(lines 321 325) no Hoare annotation was computed. [2021-10-24 10:21:13,471 INFO L857 garLoopResultBuilder]: For program point L321-3(lines 321 325) no Hoare annotation was computed. [2021-10-24 10:21:13,471 INFO L857 garLoopResultBuilder]: For program point L321-5(lines 321 325) no Hoare annotation was computed. [2021-10-24 10:21:13,471 INFO L857 garLoopResultBuilder]: For program point L321-6(lines 321 325) no Hoare annotation was computed. [2021-10-24 10:21:13,471 INFO L857 garLoopResultBuilder]: For program point L321-8(lines 321 325) no Hoare annotation was computed. [2021-10-24 10:21:13,471 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 10:21:13,472 INFO L853 garLoopResultBuilder]: At program point L620(lines 611 624) the Hoare annotation is: false [2021-10-24 10:21:13,472 INFO L853 garLoopResultBuilder]: At program point L620-1(lines 611 624) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (not (= ~systemActive~0 (_ bv0 32)))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= ~waterLevel~0 (_ bv1 32)) .cse2 .cse3))) [2021-10-24 10:21:13,472 INFO L853 garLoopResultBuilder]: At program point L620-2(lines 611 624) the Hoare annotation is: false [2021-10-24 10:21:13,472 INFO L853 garLoopResultBuilder]: At program point L620-3(lines 611 624) the Hoare annotation is: false [2021-10-24 10:21:13,472 INFO L853 garLoopResultBuilder]: At program point L620-4(lines 611 624) the Hoare annotation is: false [2021-10-24 10:21:13,472 INFO L853 garLoopResultBuilder]: At program point L620-5(lines 611 624) the Hoare annotation is: false [2021-10-24 10:21:13,473 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-24 10:21:13,473 INFO L853 garLoopResultBuilder]: At program point L327(lines 312 330) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp~4 (_ bv0 32)) (not (= ~systemActive~0 (_ bv0 32))) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv1 32))) [2021-10-24 10:21:13,473 INFO L853 garLoopResultBuilder]: At program point L327-1(lines 312 330) the Hoare annotation is: false [2021-10-24 10:21:13,473 INFO L853 garLoopResultBuilder]: At program point L327-2(lines 312 330) the Hoare annotation is: false [2021-10-24 10:21:13,473 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 111) no Hoare annotation was computed. [2021-10-24 10:21:13,473 INFO L853 garLoopResultBuilder]: At program point L526(lines 521 529) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 10:21:13,474 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-24 10:21:13,474 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1005) no Hoare annotation was computed. [2021-10-24 10:21:13,474 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 566) no Hoare annotation was computed. [2021-10-24 10:21:13,474 INFO L853 garLoopResultBuilder]: At program point L463(lines 458 465) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 10:21:13,474 INFO L857 garLoopResultBuilder]: For program point L67(lines 66 115) no Hoare annotation was computed. [2021-10-24 10:21:13,474 INFO L857 garLoopResultBuilder]: For program point L200(lines 200 217) no Hoare annotation was computed. [2021-10-24 10:21:13,475 INFO L857 garLoopResultBuilder]: For program point L200-1(lines 200 217) no Hoare annotation was computed. [2021-10-24 10:21:13,475 INFO L857 garLoopResultBuilder]: For program point L200-2(lines 200 217) no Hoare annotation was computed. [2021-10-24 10:21:13,475 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 72) no Hoare annotation was computed. [2021-10-24 10:21:13,479 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:21:13,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:21:13 BoogieIcfgContainer [2021-10-24 10:21:13,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:21:13,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:21:13,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:21:13,523 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:21:13,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:20:35" (3/4) ... [2021-10-24 10:21:13,526 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 10:21:13,547 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-24 10:21:13,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-24 10:21:13,550 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-24 10:21:13,551 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-24 10:21:13,552 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-24 10:21:13,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:21:13,555 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:21:13,580 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning [2021-10-24 10:21:13,580 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning [2021-10-24 10:21:13,581 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning [2021-10-24 10:21:13,583 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == pumpRunning) || ((splverifierCounter == 0bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32))) || (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32)) [2021-10-24 10:21:13,584 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && waterLevel == 1bv32) && !(systemActive == 0bv32) [2021-10-24 10:21:13,585 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && waterLevel == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) [2021-10-24 10:21:13,585 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && 0bv32 == pumpRunning) [2021-10-24 10:21:13,586 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && !(systemActive == 0bv32)) && tmp___0 == 1bv32 [2021-10-24 10:21:13,587 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp___0 == 0bv32) && \result == 0bv32) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && tmp___0 == 0bv32) && \result == 0bv32) && waterLevel == 1bv32) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) [2021-10-24 10:21:13,665 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:21:13,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:21:13,667 INFO L168 Benchmark]: Toolchain (without parser) took 41390.36 ms. Allocated memory was 58.7 MB in the beginning and 182.5 MB in the end (delta: 123.7 MB). Free memory was 35.5 MB in the beginning and 94.3 MB in the end (delta: -58.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:13,668 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 58.7 MB. Free memory was 39.6 MB in the beginning and 39.6 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:21:13,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.93 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 38.3 MB in the end (delta: -3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:13,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.64 ms. Allocated memory is still 71.3 MB. Free memory was 38.3 MB in the beginning and 52.3 MB in the end (delta: -13.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:13,670 INFO L168 Benchmark]: Boogie Preprocessor took 78.65 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 49.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:13,670 INFO L168 Benchmark]: RCFGBuilder took 2147.24 ms. Allocated memory is still 71.3 MB. Free memory was 49.4 MB in the beginning and 31.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:13,671 INFO L168 Benchmark]: TraceAbstraction took 38270.32 ms. Allocated memory was 71.3 MB in the beginning and 182.5 MB in the end (delta: 111.1 MB). Free memory was 31.3 MB in the beginning and 104.8 MB in the end (delta: -73.6 MB). Peak memory consumption was 104.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:13,671 INFO L168 Benchmark]: Witness Printer took 143.59 ms. Allocated memory is still 182.5 MB. Free memory was 104.8 MB in the beginning and 94.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:13,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 58.7 MB. Free memory was 39.6 MB in the beginning and 39.6 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 616.93 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 38.3 MB in the end (delta: -3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.64 ms. Allocated memory is still 71.3 MB. Free memory was 38.3 MB in the beginning and 52.3 MB in the end (delta: -13.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.65 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 49.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2147.24 ms. Allocated memory is still 71.3 MB. Free memory was 49.4 MB in the beginning and 31.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 38270.32 ms. Allocated memory was 71.3 MB in the beginning and 182.5 MB in the end (delta: 111.1 MB). Free memory was 31.3 MB in the beginning and 104.8 MB in the end (delta: -73.6 MB). Peak memory consumption was 104.3 MB. Max. memory is 16.1 GB. * Witness Printer took 143.59 ms. Allocated memory is still 182.5 MB. Free memory was 104.8 MB in the beginning and 94.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1005]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1005]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1005]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 123 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 38150.2ms, OverallIterations: 14, TraceHistogramMax: 2, EmptinessCheckTime: 50.3ms, AutomataDifference: 9615.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 15666.4ms, InitialAbstractionConstructionTime: 17.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1472 SDtfs, 2315 SDslu, 3205 SDs, 0 SdLazy, 441 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7814.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1253 GetRequests, 1190 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 448.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1175occurred in iteration=11, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 601.2ms AutomataMinimizationTime, 14 MinimizatonAttempts, 4303 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 150 NumberOfFragments, 727 HoareAnnotationTreeSize, 45 FomulaSimplifications, 1394140 FormulaSimplificationTreeSizeReduction, 3851.2ms HoareSimplificationTime, 45 FomulaSimplificationsInter, 1116772 FormulaSimplificationTreeSizeReductionInter, 11799.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 339.9ms SsaConstructionTime, 1828.4ms SatisfiabilityAnalysisTime, 4066.5ms InterpolantComputationTime, 626 NumberOfCodeBlocks, 626 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1220 ConstructedInterpolants, 0 QuantifiedInterpolants, 2381 SizeOfPredicates, 29 NumberOfNonLiveVariables, 3569 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 32 InterpolantComputations, 26 PerfectInterpolantSequences, 196/232 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == pumpRunning) || ((splverifierCounter == 0bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == pumpRunning) || ((splverifierCounter == 0bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32))) || (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 625]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 625]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && waterLevel == 1bv32) && !(systemActive == 0bv32) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && 0bv32 == pumpRunning) - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && !(systemActive == 0bv32)) && tmp___0 == 1bv32 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 625]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == pumpRunning) || ((splverifierCounter == 0bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32))) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp___0 == 0bv32) && \result == 0bv32) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && tmp___0 == 0bv32) && \result == 0bv32) && waterLevel == 1bv32) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && waterLevel == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && systemActive == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 366]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((splverifierCounter == 0bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 1bv32) && !(systemActive == 0bv32))) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && waterLevel == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-24 10:21:13,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8286d8e-c533-4f9a-b67c-9ef5ddd9f5f1/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...