./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8 --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 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:34:14,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:34:14,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:34:14,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:34:14,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:34:14,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:34:14,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:34:14,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:34:14,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:34:14,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:34:14,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:34:14,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:34:14,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:34:14,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:34:14,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:34:14,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:34:14,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:34:14,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:34:14,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:34:14,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:34:14,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:34:14,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:34:14,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:34:14,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:34:14,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:34:14,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:34:14,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:34:14,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:34:14,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:34:14,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:34:14,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:34:14,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:34:14,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:34:14,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:34:14,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:34:14,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:34:14,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:34:14,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:34:14,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:34:14,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:34:14,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:34:14,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:34:14,787 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:34:14,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:34:14,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:34:14,796 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:34:14,796 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:34:14,796 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:34:14,797 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:34:14,797 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:34:14,805 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:34:14,806 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:34:14,807 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:34:14,808 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:34:14,808 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:34:14,809 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:34:14,809 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:34:14,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:34:14,810 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:34:14,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:34:14,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:34:14,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:34:14,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:34:14,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:34:14,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:34:14,813 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:34:14,813 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:34:14,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:34:14,813 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:34:14,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:34:14,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:34:14,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:34:14,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:34:14,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:34:14,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:34:14,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:34:14,818 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:34:14,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:34:14,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:34:14,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:34:14,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:34:14,820 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_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d [2021-11-07 01:34:15,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:34:15,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:34:15,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:34:15,201 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:34:15,202 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:34:15,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2021-11-07 01:34:15,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/data/e69809538/6139c935e33b4571b91ace3b3e8f5649/FLAG1b73b7569 [2021-11-07 01:34:15,929 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:34:15,930 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2021-11-07 01:34:15,945 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/data/e69809538/6139c935e33b4571b91ace3b3e8f5649/FLAG1b73b7569 [2021-11-07 01:34:16,215 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/data/e69809538/6139c935e33b4571b91ace3b3e8f5649 [2021-11-07 01:34:16,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:34:16,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:34:16,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:16,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:34:16,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:34:16,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:16" (1/1) ... [2021-11-07 01:34:16,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d072b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:16, skipping insertion in model container [2021-11-07 01:34:16,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:16" (1/1) ... [2021-11-07 01:34:16,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:34:16,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:34:16,683 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_66d720e3-8516-4e96-882c-569d1668928d/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2021-11-07 01:34:16,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:16,718 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) [2021-11-07 01:34:16,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@440e3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:16, skipping insertion in model container [2021-11-07 01:34:16,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:16,720 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:34:16,735 INFO L168 Benchmark]: Toolchain (without parser) took 501.10 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.8 MB in the beginning and 102.6 MB in the end (delta: -26.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:16,736 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 107.0 MB. Free memory is still 60.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:34:16,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.77 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.4 MB in the beginning and 102.6 MB in the end (delta: -27.1 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:16,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 107.0 MB. Free memory is still 60.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 497.77 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.4 MB in the beginning and 102.6 MB in the end (delta: -27.1 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 598]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8 --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 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:34:19,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:34:19,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:34:19,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:34:19,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:34:19,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:34:19,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:34:19,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:34:19,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:34:19,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:34:19,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:34:19,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:34:19,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:34:19,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:34:19,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:34:19,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:34:19,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:34:19,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:34:19,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:34:19,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:34:19,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:34:19,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:34:19,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:34:19,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:34:19,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:34:19,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:34:19,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:34:19,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:34:19,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:34:19,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:34:19,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:34:19,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:34:19,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:34:19,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:34:19,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:34:19,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:34:19,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:34:19,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:34:19,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:34:19,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:34:19,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:34:19,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:34:19,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:34:19,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:34:19,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:34:19,640 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:34:19,641 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:34:19,641 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:34:19,641 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:34:19,641 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:34:19,642 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:34:19,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:34:19,645 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:34:19,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:34:19,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:34:19,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:34:19,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:34:19,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:34:19,647 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:34:19,647 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:34:19,647 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:34:19,648 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:34:19,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:34:19,648 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:34:19,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:34:19,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:34:19,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:34:19,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:34:19,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:34:19,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:34:19,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:34:19,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:34:19,651 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:34:19,651 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:34:19,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:34:19,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:34:19,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:34:19,653 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_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d [2021-11-07 01:34:20,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:34:20,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:34:20,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:34:20,223 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:34:20,224 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:34:20,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2021-11-07 01:34:20,314 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/data/11b9051d6/20ff741f189348f8820ff6c9d21d5464/FLAG9ab57239f [2021-11-07 01:34:21,113 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:34:21,130 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2021-11-07 01:34:21,144 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/data/11b9051d6/20ff741f189348f8820ff6c9d21d5464/FLAG9ab57239f [2021-11-07 01:34:21,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/data/11b9051d6/20ff741f189348f8820ff6c9d21d5464 [2021-11-07 01:34:21,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:34:21,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:34:21,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:21,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:34:21,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:34:21,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:21" (1/1) ... [2021-11-07 01:34:21,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c4dc857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:21, skipping insertion in model container [2021-11-07 01:34:21,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:21" (1/1) ... [2021-11-07 01:34:21,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:34:21,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:34:21,845 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_66d720e3-8516-4e96-882c-569d1668928d/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2021-11-07 01:34:21,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:21,873 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:34:21,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:34:21,999 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_66d720e3-8516-4e96-882c-569d1668928d/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2021-11-07 01:34:22,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:22,007 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:34:22,116 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_66d720e3-8516-4e96-882c-569d1668928d/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2021-11-07 01:34:22,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:22,158 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:34:22,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22 WrapperNode [2021-11-07 01:34:22,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:22,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:34:22,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:34:22,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:34:22,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22" (1/1) ... [2021-11-07 01:34:22,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22" (1/1) ... [2021-11-07 01:34:22,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:34:22,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:34:22,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:34:22,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:34:22,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22" (1/1) ... [2021-11-07 01:34:22,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22" (1/1) ... [2021-11-07 01:34:22,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22" (1/1) ... [2021-11-07 01:34:22,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22" (1/1) ... [2021-11-07 01:34:22,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22" (1/1) ... [2021-11-07 01:34:22,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22" (1/1) ... [2021-11-07 01:34:22,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22" (1/1) ... [2021-11-07 01:34:22,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:34:22,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:34:22,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:34:22,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:34:22,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22" (1/1) ... [2021-11-07 01:34:22,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:34:22,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:34:22,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:34:22,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:34:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:34:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:34:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:34:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:34:25,447 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:34:25,447 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-11-07 01:34:25,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:34:25 BoogieIcfgContainer [2021-11-07 01:34:25,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:34:25,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:34:25,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:34:25,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:34:25,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:34:21" (1/3) ... [2021-11-07 01:34:25,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f3e39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:34:25, skipping insertion in model container [2021-11-07 01:34:25,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:22" (2/3) ... [2021-11-07 01:34:25,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f3e39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:34:25, skipping insertion in model container [2021-11-07 01:34:25,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:34:25" (3/3) ... [2021-11-07 01:34:25,461 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2021-11-07 01:34:25,467 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:34:25,468 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 01:34:25,525 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:34:25,533 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 [2021-11-07 01:34:25,533 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 01:34:25,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 117 states have (on average 1.5726495726495726) internal successors, (184), 120 states have internal predecessors, (184), 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) [2021-11-07 01:34:25,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:34:25,572 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:25,573 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:25,574 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:25,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:25,585 INFO L85 PathProgramCache]: Analyzing trace with hash 682439968, now seen corresponding path program 1 times [2021-11-07 01:34:25,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:25,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005077290] [2021-11-07 01:34:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:25,602 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:25,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:25,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:25,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:34:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:25,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:34:25,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:25,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:26,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:26,065 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:26,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005077290] [2021-11-07 01:34:26,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005077290] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:26,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:26,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:34:26,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447939481] [2021-11-07 01:34:26,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:34:26,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:26,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:34:26,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:34:26,098 INFO L87 Difference]: Start difference. First operand has 121 states, 117 states have (on average 1.5726495726495726) internal successors, (184), 120 states have internal predecessors, (184), 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) [2021-11-07 01:34:26,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:26,159 INFO L93 Difference]: Finished difference Result 235 states and 360 transitions. [2021-11-07 01:34:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:34:26,161 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 [2021-11-07 01:34:26,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:26,183 INFO L225 Difference]: With dead ends: 235 [2021-11-07 01:34:26,183 INFO L226 Difference]: Without dead ends: 117 [2021-11-07 01:34:26,188 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:34:26,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-07 01:34:26,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-07 01:34:26,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 116 states have internal predecessors, (172), 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) [2021-11-07 01:34:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 172 transitions. [2021-11-07 01:34:26,247 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 172 transitions. Word has length 18 [2021-11-07 01:34:26,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:26,247 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 172 transitions. [2021-11-07 01:34:26,248 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) [2021-11-07 01:34:26,248 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 172 transitions. [2021-11-07 01:34:26,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 01:34:26,249 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:26,250 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:26,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:26,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:26,466 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:26,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:26,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1011956893, now seen corresponding path program 1 times [2021-11-07 01:34:26,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:26,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699227483] [2021-11-07 01:34:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:26,469 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:26,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:26,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:26,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:34:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:26,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:34:26,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:26,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:26,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:26,871 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:26,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699227483] [2021-11-07 01:34:26,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699227483] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:26,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:26,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:34:26,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002894276] [2021-11-07 01:34:26,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:34:26,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:26,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:34:26,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:26,882 INFO L87 Difference]: Start difference. First operand 117 states and 172 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) [2021-11-07 01:34:26,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:26,915 INFO L93 Difference]: Finished difference Result 117 states and 172 transitions. [2021-11-07 01:34:26,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:34:26,916 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 [2021-11-07 01:34:26,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:26,919 INFO L225 Difference]: With dead ends: 117 [2021-11-07 01:34:26,919 INFO L226 Difference]: Without dead ends: 49 [2021-11-07 01:34:26,921 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:26,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-07 01:34:26,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-11-07 01:34:26,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 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) [2021-11-07 01:34:26,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-11-07 01:34:26,945 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2021-11-07 01:34:26,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:26,946 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-11-07 01:34:26,947 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) [2021-11-07 01:34:26,947 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-11-07 01:34:26,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:34:26,950 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:26,952 INFO L513 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] [2021-11-07 01:34:26,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:27,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:27,170 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:27,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:27,171 INFO L85 PathProgramCache]: Analyzing trace with hash 136399670, now seen corresponding path program 1 times [2021-11-07 01:34:27,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:27,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448087893] [2021-11-07 01:34:27,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:27,173 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:27,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:27,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:27,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:34:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:27,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:34:27,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:27,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:27,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:27,725 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:27,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448087893] [2021-11-07 01:34:27,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448087893] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:27,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:27,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:34:27,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124413524] [2021-11-07 01:34:27,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:34:27,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:27,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:34:27,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:27,732 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-07 01:34:27,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:27,755 INFO L93 Difference]: Finished difference Result 91 states and 135 transitions. [2021-11-07 01:34:27,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:34:27,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 [2021-11-07 01:34:27,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:27,759 INFO L225 Difference]: With dead ends: 91 [2021-11-07 01:34:27,760 INFO L226 Difference]: Without dead ends: 49 [2021-11-07 01:34:27,760 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:27,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-07 01:34:27,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-11-07 01:34:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 48 states have internal predecessors, (70), 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) [2021-11-07 01:34:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2021-11-07 01:34:27,779 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 24 [2021-11-07 01:34:27,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:27,779 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2021-11-07 01:34:27,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-07 01:34:27,781 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2021-11-07 01:34:27,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 01:34:27,784 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:27,784 INFO L513 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] [2021-11-07 01:34:27,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:28,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:28,000 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:28,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash 616180244, now seen corresponding path program 1 times [2021-11-07 01:34:28,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:28,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294532045] [2021-11-07 01:34:28,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:28,003 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:28,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:28,004 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:28,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:34:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:28,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:34:28,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:28,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:28,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:28,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:28,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294532045] [2021-11-07 01:34:28,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294532045] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:28,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:28,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:34:28,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721110965] [2021-11-07 01:34:28,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:34:28,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:28,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:34:28,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:34:28,422 INFO L87 Difference]: Start difference. First operand 49 states and 70 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) [2021-11-07 01:34:28,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:28,494 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2021-11-07 01:34:28,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:34:28,495 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 [2021-11-07 01:34:28,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:28,496 INFO L225 Difference]: With dead ends: 113 [2021-11-07 01:34:28,496 INFO L226 Difference]: Without dead ends: 71 [2021-11-07 01:34:28,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:34:28,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-07 01:34:28,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2021-11-07 01:34:28,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.4411764705882353) internal successors, (98), 68 states have internal predecessors, (98), 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) [2021-11-07 01:34:28,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 98 transitions. [2021-11-07 01:34:28,507 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 98 transitions. Word has length 26 [2021-11-07 01:34:28,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:28,508 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 98 transitions. [2021-11-07 01:34:28,508 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) [2021-11-07 01:34:28,508 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 98 transitions. [2021-11-07 01:34:28,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:34:28,510 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:28,510 INFO L513 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] [2021-11-07 01:34:28,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:28,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:28,733 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:28,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:28,734 INFO L85 PathProgramCache]: Analyzing trace with hash -604593117, now seen corresponding path program 1 times [2021-11-07 01:34:28,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:28,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339133196] [2021-11-07 01:34:28,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:28,735 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:28,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:28,737 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:28,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:34:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:28,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:34:28,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:29,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:29,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:29,187 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:29,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339133196] [2021-11-07 01:34:29,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339133196] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:29,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:29,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:34:29,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009552779] [2021-11-07 01:34:29,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:34:29,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:29,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:34:29,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:34:29,190 INFO L87 Difference]: Start difference. First operand 69 states and 98 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2021-11-07 01:34:29,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:29,277 INFO L93 Difference]: Finished difference Result 182 states and 258 transitions. [2021-11-07 01:34:29,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:34:29,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 32 [2021-11-07 01:34:29,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:29,279 INFO L225 Difference]: With dead ends: 182 [2021-11-07 01:34:29,279 INFO L226 Difference]: Without dead ends: 120 [2021-11-07 01:34:29,280 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:34:29,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-07 01:34:29,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 75. [2021-11-07 01:34:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 74 states have internal predecessors, (104), 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) [2021-11-07 01:34:29,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2021-11-07 01:34:29,291 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 32 [2021-11-07 01:34:29,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:29,291 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2021-11-07 01:34:29,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2021-11-07 01:34:29,291 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2021-11-07 01:34:29,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:34:29,293 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:29,293 INFO L513 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] [2021-11-07 01:34:29,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:29,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:29,512 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:29,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:29,513 INFO L85 PathProgramCache]: Analyzing trace with hash 328870592, now seen corresponding path program 1 times [2021-11-07 01:34:29,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:29,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987188634] [2021-11-07 01:34:29,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:29,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:29,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:29,516 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:29,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:34:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:29,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:34:29,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:29,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:30,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:30,103 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:30,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987188634] [2021-11-07 01:34:30,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987188634] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:30,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:30,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:34:30,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086736331] [2021-11-07 01:34:30,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:34:30,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:30,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:34:30,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:34:30,108 INFO L87 Difference]: Start difference. First operand 75 states and 104 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-11-07 01:34:30,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:30,228 INFO L93 Difference]: Finished difference Result 387 states and 547 transitions. [2021-11-07 01:34:30,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:34:30,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2021-11-07 01:34:30,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:30,232 INFO L225 Difference]: With dead ends: 387 [2021-11-07 01:34:30,232 INFO L226 Difference]: Without dead ends: 319 [2021-11-07 01:34:30,236 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:34:30,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-07 01:34:30,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 135. [2021-11-07 01:34:30,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.3880597014925373) internal successors, (186), 134 states have internal predecessors, (186), 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) [2021-11-07 01:34:30,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 186 transitions. [2021-11-07 01:34:30,278 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 186 transitions. Word has length 32 [2021-11-07 01:34:30,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:30,281 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 186 transitions. [2021-11-07 01:34:30,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-11-07 01:34:30,281 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 186 transitions. [2021-11-07 01:34:30,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:34:30,286 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:30,286 INFO L513 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] [2021-11-07 01:34:30,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:30,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:30,518 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:30,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:30,519 INFO L85 PathProgramCache]: Analyzing trace with hash 328714056, now seen corresponding path program 1 times [2021-11-07 01:34:30,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:30,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662932439] [2021-11-07 01:34:30,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:30,520 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:30,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:30,521 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:30,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:34:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:30,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:34:30,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:30,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:30,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:31,071 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:31,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662932439] [2021-11-07 01:34:31,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662932439] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:31,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:31,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:34:31,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450451818] [2021-11-07 01:34:31,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:34:31,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:31,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:34:31,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:34:31,081 INFO L87 Difference]: Start difference. First operand 135 states and 186 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) [2021-11-07 01:34:31,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:31,267 INFO L93 Difference]: Finished difference Result 506 states and 701 transitions. [2021-11-07 01:34:31,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:34:31,268 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 [2021-11-07 01:34:31,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:31,271 INFO L225 Difference]: With dead ends: 506 [2021-11-07 01:34:31,272 INFO L226 Difference]: Without dead ends: 378 [2021-11-07 01:34:31,272 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:34:31,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-11-07 01:34:31,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 134. [2021-11-07 01:34:31,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.3759398496240602) internal successors, (183), 133 states have internal predecessors, (183), 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) [2021-11-07 01:34:31,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 183 transitions. [2021-11-07 01:34:31,292 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 183 transitions. Word has length 33 [2021-11-07 01:34:31,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:31,292 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 183 transitions. [2021-11-07 01:34:31,293 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) [2021-11-07 01:34:31,293 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 183 transitions. [2021-11-07 01:34:31,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:34:31,294 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:31,294 INFO L513 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] [2021-11-07 01:34:31,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:31,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:31,510 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:31,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:31,511 INFO L85 PathProgramCache]: Analyzing trace with hash 96314925, now seen corresponding path program 1 times [2021-11-07 01:34:31,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:31,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784455207] [2021-11-07 01:34:31,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:31,512 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:31,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:31,513 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:31,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:34:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:31,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:34:31,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:31,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:32,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:32,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:32,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784455207] [2021-11-07 01:34:32,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784455207] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:32,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:32,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:34:32,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931899186] [2021-11-07 01:34:32,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:34:32,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:32,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:34:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:34:32,062 INFO L87 Difference]: Start difference. First operand 134 states and 183 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) [2021-11-07 01:34:32,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:32,145 INFO L93 Difference]: Finished difference Result 357 states and 483 transitions. [2021-11-07 01:34:32,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:34:32,148 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 [2021-11-07 01:34:32,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:32,150 INFO L225 Difference]: With dead ends: 357 [2021-11-07 01:34:32,150 INFO L226 Difference]: Without dead ends: 230 [2021-11-07 01:34:32,151 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:34:32,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-07 01:34:32,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 142. [2021-11-07 01:34:32,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 141 states have internal predecessors, (191), 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) [2021-11-07 01:34:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 191 transitions. [2021-11-07 01:34:32,190 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 191 transitions. Word has length 33 [2021-11-07 01:34:32,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:32,191 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 191 transitions. [2021-11-07 01:34:32,191 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) [2021-11-07 01:34:32,191 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 191 transitions. [2021-11-07 01:34:32,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:34:32,195 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:32,195 INFO L513 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] [2021-11-07 01:34:32,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:32,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:32,411 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:32,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:32,412 INFO L85 PathProgramCache]: Analyzing trace with hash -490491089, now seen corresponding path program 1 times [2021-11-07 01:34:32,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:32,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748284400] [2021-11-07 01:34:32,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:32,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:32,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:32,414 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:32,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:34:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:32,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:34:32,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:32,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:32,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:33,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:33,039 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:33,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748284400] [2021-11-07 01:34:33,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748284400] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:33,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:33,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:34:33,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177277742] [2021-11-07 01:34:33,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:34:33,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:33,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:34:33,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:33,042 INFO L87 Difference]: Start difference. First operand 142 states and 191 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) [2021-11-07 01:34:33,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:33,157 INFO L93 Difference]: Finished difference Result 434 states and 587 transitions. [2021-11-07 01:34:33,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:34:33,158 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 [2021-11-07 01:34:33,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:33,164 INFO L225 Difference]: With dead ends: 434 [2021-11-07 01:34:33,164 INFO L226 Difference]: Without dead ends: 299 [2021-11-07 01:34:33,165 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:33,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-11-07 01:34:33,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 247. [2021-11-07 01:34:33,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.3414634146341464) internal successors, (330), 246 states have internal predecessors, (330), 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) [2021-11-07 01:34:33,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 330 transitions. [2021-11-07 01:34:33,207 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 330 transitions. Word has length 33 [2021-11-07 01:34:33,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:33,207 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 330 transitions. [2021-11-07 01:34:33,208 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) [2021-11-07 01:34:33,208 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 330 transitions. [2021-11-07 01:34:33,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:34:33,210 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:33,211 INFO L513 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] [2021-11-07 01:34:33,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:33,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:33,426 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:33,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:33,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1404141039, now seen corresponding path program 1 times [2021-11-07 01:34:33,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:33,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971028346] [2021-11-07 01:34:33,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:33,427 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:33,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:33,429 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:33,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:34:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:33,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:34:33,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:33,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:33,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:34,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:34,033 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:34,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971028346] [2021-11-07 01:34:34,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971028346] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:34,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:34,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:34:34,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107337213] [2021-11-07 01:34:34,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:34:34,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:34,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:34:34,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:34:34,036 INFO L87 Difference]: Start difference. First operand 247 states and 330 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) [2021-11-07 01:34:34,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:34,124 INFO L93 Difference]: Finished difference Result 423 states and 564 transitions. [2021-11-07 01:34:34,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:34:34,125 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 [2021-11-07 01:34:34,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:34,129 INFO L225 Difference]: With dead ends: 423 [2021-11-07 01:34:34,129 INFO L226 Difference]: Without dead ends: 421 [2021-11-07 01:34:34,130 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:34:34,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-11-07 01:34:34,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 316. [2021-11-07 01:34:34,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 1.3714285714285714) internal successors, (432), 315 states have internal predecessors, (432), 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) [2021-11-07 01:34:34,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 432 transitions. [2021-11-07 01:34:34,173 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 432 transitions. Word has length 34 [2021-11-07 01:34:34,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:34,174 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 432 transitions. [2021-11-07 01:34:34,174 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) [2021-11-07 01:34:34,174 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 432 transitions. [2021-11-07 01:34:34,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:34:34,176 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:34,176 INFO L513 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] [2021-11-07 01:34:34,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:34,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:34,395 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:34,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:34,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1385466613, now seen corresponding path program 1 times [2021-11-07 01:34:34,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:34,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659659076] [2021-11-07 01:34:34,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:34,397 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:34,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:34,398 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:34,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:34:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:34,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:34:34,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:34,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:35,136 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:35,137 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:35,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659659076] [2021-11-07 01:34:35,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659659076] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:35,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:35,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:34:35,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206975711] [2021-11-07 01:34:35,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:34:35,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:35,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:34:35,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:35,141 INFO L87 Difference]: Start difference. First operand 316 states and 432 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) [2021-11-07 01:34:36,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:36,588 INFO L93 Difference]: Finished difference Result 580 states and 800 transitions. [2021-11-07 01:34:36,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:34:36,588 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 [2021-11-07 01:34:36,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:36,591 INFO L225 Difference]: With dead ends: 580 [2021-11-07 01:34:36,591 INFO L226 Difference]: Without dead ends: 271 [2021-11-07 01:34:36,592 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:36,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-11-07 01:34:36,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2021-11-07 01:34:36,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.3222222222222222) internal successors, (357), 270 states have internal predecessors, (357), 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) [2021-11-07 01:34:36,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 357 transitions. [2021-11-07 01:34:36,630 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 357 transitions. Word has length 58 [2021-11-07 01:34:36,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:36,631 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 357 transitions. [2021-11-07 01:34:36,631 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) [2021-11-07 01:34:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 357 transitions. [2021-11-07 01:34:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:34:36,633 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:36,633 INFO L513 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] [2021-11-07 01:34:36,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:36,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:36,848 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:36,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:36,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1874884889, now seen corresponding path program 1 times [2021-11-07 01:34:36,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:36,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566622923] [2021-11-07 01:34:36,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:36,851 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:36,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:36,852 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:36,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:34:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:37,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:34:37,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 01:34:37,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 01:34:37,640 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:37,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566622923] [2021-11-07 01:34:37,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566622923] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:37,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:37,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:34:37,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031897444] [2021-11-07 01:34:37,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:34:37,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:37,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:34:37,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:34:37,642 INFO L87 Difference]: Start difference. First operand 271 states and 357 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) [2021-11-07 01:34:37,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:37,796 INFO L93 Difference]: Finished difference Result 855 states and 1127 transitions. [2021-11-07 01:34:37,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:34:37,797 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 [2021-11-07 01:34:37,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:37,802 INFO L225 Difference]: With dead ends: 855 [2021-11-07 01:34:37,802 INFO L226 Difference]: Without dead ends: 591 [2021-11-07 01:34:37,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:34:37,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2021-11-07 01:34:37,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 283. [2021-11-07 01:34:37,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.3085106382978724) internal successors, (369), 282 states have internal predecessors, (369), 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) [2021-11-07 01:34:37,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 369 transitions. [2021-11-07 01:34:37,845 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 369 transitions. Word has length 58 [2021-11-07 01:34:37,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:37,846 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 369 transitions. [2021-11-07 01:34:37,846 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) [2021-11-07 01:34:37,846 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 369 transitions. [2021-11-07 01:34:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:34:37,848 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:37,848 INFO L513 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] [2021-11-07 01:34:37,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:38,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:38,064 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:38,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:38,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1616719451, now seen corresponding path program 1 times [2021-11-07 01:34:38,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:38,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929193875] [2021-11-07 01:34:38,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:38,065 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:38,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:38,066 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:38,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:34:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:38,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:34:38,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:34:38,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:34:39,037 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:39,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929193875] [2021-11-07 01:34:39,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929193875] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:34:39,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [255663255] [2021-11-07 01:34:39,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:39,038 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:34:39,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:34:39,043 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:34:39,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-07 01:34:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:39,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:34:39,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:34:40,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:34:40,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [255663255] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:34:40,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973218122] [2021-11-07 01:34:40,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:40,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:34:40,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:34:40,264 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:34:40,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-07 01:34:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:40,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:34:40,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:41,024 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:34:41,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:41,262 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:34:41,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973218122] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:34:41,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:34:41,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 7 [2021-11-07 01:34:41,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662772582] [2021-11-07 01:34:41,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:34:41,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:41,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:34:41,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:34:41,264 INFO L87 Difference]: Start difference. First operand 283 states and 369 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 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) [2021-11-07 01:34:42,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:42,937 INFO L93 Difference]: Finished difference Result 655 states and 858 transitions. [2021-11-07 01:34:42,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:34:42,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 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 [2021-11-07 01:34:42,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:42,938 INFO L225 Difference]: With dead ends: 655 [2021-11-07 01:34:42,938 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:34:42,940 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:34:42,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:34:42,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:34:42,940 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) [2021-11-07 01:34:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:34:42,941 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-11-07 01:34:42,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:42,941 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:34:42,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 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) [2021-11-07 01:34:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:34:42,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:34:42,945 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:34:42,945 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:34:42,945 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:34:42,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:43,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-07 01:34:43,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:43,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:34:43,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 01:34:43,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:43,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:43,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:43,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:44,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:45,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:50,467 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 940) no Hoare annotation was computed. [2021-11-07 01:34:50,467 INFO L857 garLoopResultBuilder]: For program point L168(lines 168 172) no Hoare annotation was computed. [2021-11-07 01:34:50,468 INFO L857 garLoopResultBuilder]: For program point L168-3(lines 168 172) no Hoare annotation was computed. [2021-11-07 01:34:50,468 INFO L857 garLoopResultBuilder]: For program point L168-6(lines 168 172) no Hoare annotation was computed. [2021-11-07 01:34:50,468 INFO L853 garLoopResultBuilder]: At program point L565(lines 550 568) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~6 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~3 (_ bv1 32)) (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32))) [2021-11-07 01:34:50,468 INFO L853 garLoopResultBuilder]: At program point L565-1(lines 550 568) the Hoare annotation is: false [2021-11-07 01:34:50,469 INFO L853 garLoopResultBuilder]: At program point L565-2(lines 550 568) the Hoare annotation is: false [2021-11-07 01:34:50,469 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 342) no Hoare annotation was computed. [2021-11-07 01:34:50,469 INFO L853 garLoopResultBuilder]: At program point L336-1(lines 336 342) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2) (and .cse0 .cse3 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse4) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2021-11-07 01:34:50,469 INFO L853 garLoopResultBuilder]: At program point L205(lines 200 208) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2) (and .cse0 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3) (and .cse0 .cse4 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2))) [2021-11-07 01:34:50,470 INFO L853 garLoopResultBuilder]: At program point L205-1(lines 200 208) the Hoare annotation is: false [2021-11-07 01:34:50,470 INFO L853 garLoopResultBuilder]: At program point L205-2(lines 200 208) the Hoare annotation is: false [2021-11-07 01:34:50,470 INFO L857 garLoopResultBuilder]: For program point L438(lines 438 455) no Hoare annotation was computed. [2021-11-07 01:34:50,470 INFO L857 garLoopResultBuilder]: For program point L438-1(lines 438 455) no Hoare annotation was computed. [2021-11-07 01:34:50,470 INFO L857 garLoopResultBuilder]: For program point L438-2(lines 438 455) no Hoare annotation was computed. [2021-11-07 01:34:50,471 INFO L853 garLoopResultBuilder]: At program point L273(lines 268 275) 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)) [2021-11-07 01:34:50,471 INFO L853 garLoopResultBuilder]: At program point L967(lines 1 978) 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)) [2021-11-07 01:34:50,471 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 940) no Hoare annotation was computed. [2021-11-07 01:34:50,471 INFO L857 garLoopResultBuilder]: For program point L142(lines 142 149) no Hoare annotation was computed. [2021-11-07 01:34:50,472 INFO L860 garLoopResultBuilder]: At program point L142-1(lines 142 149) the Hoare annotation is: true [2021-11-07 01:34:50,472 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,472 INFO L857 garLoopResultBuilder]: For program point L540-2(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,472 INFO L857 garLoopResultBuilder]: For program point L540-3(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,472 INFO L857 garLoopResultBuilder]: For program point L540-5(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,473 INFO L857 garLoopResultBuilder]: For program point L540-6(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,473 INFO L857 garLoopResultBuilder]: For program point L540-8(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,473 INFO L857 garLoopResultBuilder]: For program point L540-9(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,473 INFO L857 garLoopResultBuilder]: For program point L540-11(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,473 INFO L857 garLoopResultBuilder]: For program point L540-12(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,474 INFO L857 garLoopResultBuilder]: For program point L540-14(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,474 INFO L857 garLoopResultBuilder]: For program point L540-15(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,474 INFO L857 garLoopResultBuilder]: For program point L540-17(lines 540 544) no Hoare annotation was computed. [2021-11-07 01:34:50,474 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 450) no Hoare annotation was computed. [2021-11-07 01:34:50,474 INFO L857 garLoopResultBuilder]: For program point L442-1(lines 442 450) no Hoare annotation was computed. [2021-11-07 01:34:50,474 INFO L857 garLoopResultBuilder]: For program point L442-2(lines 442 450) no Hoare annotation was computed. [2021-11-07 01:34:50,475 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 251) no Hoare annotation was computed. [2021-11-07 01:34:50,475 INFO L857 garLoopResultBuilder]: For program point L245-1(lines 245 251) no Hoare annotation was computed. [2021-11-07 01:34:50,475 INFO L857 garLoopResultBuilder]: For program point L245-2(lines 245 251) no Hoare annotation was computed. [2021-11-07 01:34:50,475 INFO L857 garLoopResultBuilder]: For program point L245-3(lines 245 251) no Hoare annotation was computed. [2021-11-07 01:34:50,476 INFO L853 garLoopResultBuilder]: At program point L113(lines 109 115) 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)) [2021-11-07 01:34:50,476 INFO L857 garLoopResultBuilder]: For program point L245-4(lines 245 251) no Hoare annotation was computed. [2021-11-07 01:34:50,476 INFO L857 garLoopResultBuilder]: For program point L245-5(lines 245 251) no Hoare annotation was computed. [2021-11-07 01:34:50,476 INFO L857 garLoopResultBuilder]: For program point L180(lines 180 184) no Hoare annotation was computed. [2021-11-07 01:34:50,476 INFO L857 garLoopResultBuilder]: For program point L940(line 940) no Hoare annotation was computed. [2021-11-07 01:34:50,476 INFO L857 garLoopResultBuilder]: For program point L940-1(line 940) no Hoare annotation was computed. [2021-11-07 01:34:50,477 INFO L857 garLoopResultBuilder]: For program point L940-2(line 940) no Hoare annotation was computed. [2021-11-07 01:34:50,477 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 429) no Hoare annotation was computed. [2021-11-07 01:34:50,477 INFO L857 garLoopResultBuilder]: For program point L412-1(lines 412 429) no Hoare annotation was computed. [2021-11-07 01:34:50,477 INFO L857 garLoopResultBuilder]: For program point L346(lines 346 357) no Hoare annotation was computed. [2021-11-07 01:34:50,477 INFO L857 garLoopResultBuilder]: For program point L412-2(lines 412 429) no Hoare annotation was computed. [2021-11-07 01:34:50,478 INFO L857 garLoopResultBuilder]: For program point L412-3(lines 412 429) no Hoare annotation was computed. [2021-11-07 01:34:50,478 INFO L857 garLoopResultBuilder]: For program point L412-4(lines 412 429) no Hoare annotation was computed. [2021-11-07 01:34:50,478 INFO L857 garLoopResultBuilder]: For program point L412-5(lines 412 429) no Hoare annotation was computed. [2021-11-07 01:34:50,478 INFO L853 garLoopResultBuilder]: At program point L380(lines 379 398) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse2 .cse4) (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse2 .cse4 .cse3))) [2021-11-07 01:34:50,478 INFO L857 garLoopResultBuilder]: For program point L380-1(lines 380 386) no Hoare annotation was computed. [2021-11-07 01:34:50,479 INFO L853 garLoopResultBuilder]: At program point L380-2(lines 379 398) the Hoare annotation is: false [2021-11-07 01:34:50,479 INFO L853 garLoopResultBuilder]: At program point L380-3(lines 379 398) the Hoare annotation is: false [2021-11-07 01:34:50,479 INFO L853 garLoopResultBuilder]: At program point L975(lines 970 978) 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)) [2021-11-07 01:34:50,479 INFO L853 garLoopResultBuilder]: At program point L546(lines 531 549) the Hoare annotation is: false [2021-11-07 01:34:50,479 INFO L853 garLoopResultBuilder]: At program point L546-1(lines 531 549) the Hoare annotation is: (let ((.cse4 (not (= ULTIMATE.start_isHighWaterLevel_~tmp~5 (_ bv0 32)))) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse6 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse4 .cse2 .cse5 (= ~waterLevel~0 (_ bv1 32)) .cse6 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse5 .cse6 .cse3) (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3))) [2021-11-07 01:34:50,480 INFO L853 garLoopResultBuilder]: At program point L546-2(lines 531 549) the Hoare annotation is: false [2021-11-07 01:34:50,480 INFO L853 garLoopResultBuilder]: At program point L546-3(lines 531 549) the Hoare annotation is: false [2021-11-07 01:34:50,480 INFO L853 garLoopResultBuilder]: At program point L546-4(lines 531 549) the Hoare annotation is: false [2021-11-07 01:34:50,480 INFO L853 garLoopResultBuilder]: At program point L546-5(lines 531 549) the Hoare annotation is: false [2021-11-07 01:34:50,480 INFO L853 garLoopResultBuilder]: At program point L250(lines 241 254) the Hoare annotation is: false [2021-11-07 01:34:50,481 INFO L853 garLoopResultBuilder]: At program point L250-1(lines 241 254) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3) (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3))) [2021-11-07 01:34:50,481 INFO L853 garLoopResultBuilder]: At program point L250-2(lines 241 254) the Hoare annotation is: false [2021-11-07 01:34:50,481 INFO L853 garLoopResultBuilder]: At program point L250-3(lines 241 254) the Hoare annotation is: false [2021-11-07 01:34:50,481 INFO L860 garLoopResultBuilder]: At program point L151(lines 132 154) the Hoare annotation is: true [2021-11-07 01:34:50,481 INFO L853 garLoopResultBuilder]: At program point L250-4(lines 241 254) the Hoare annotation is: false [2021-11-07 01:34:50,481 INFO L853 garLoopResultBuilder]: At program point L250-5(lines 241 254) the Hoare annotation is: false [2021-11-07 01:34:50,482 INFO L857 garLoopResultBuilder]: For program point L416(lines 416 424) no Hoare annotation was computed. [2021-11-07 01:34:50,482 INFO L857 garLoopResultBuilder]: For program point L416-1(lines 416 424) no Hoare annotation was computed. [2021-11-07 01:34:50,482 INFO L857 garLoopResultBuilder]: For program point L416-2(lines 416 424) no Hoare annotation was computed. [2021-11-07 01:34:50,482 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 01:34:50,482 INFO L857 garLoopResultBuilder]: For program point L317(lines 316 361) no Hoare annotation was computed. [2021-11-07 01:34:50,483 INFO L857 garLoopResultBuilder]: For program point L416-3(lines 416 424) no Hoare annotation was computed. [2021-11-07 01:34:50,483 INFO L857 garLoopResultBuilder]: For program point L284(lines 284 301) no Hoare annotation was computed. [2021-11-07 01:34:50,483 INFO L857 garLoopResultBuilder]: For program point L416-4(lines 416 424) no Hoare annotation was computed. [2021-11-07 01:34:50,483 INFO L853 garLoopResultBuilder]: At program point L284-1(lines 1 978) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2) (and .cse0 .cse3 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse4) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2021-11-07 01:34:50,483 INFO L857 garLoopResultBuilder]: For program point L416-5(lines 416 424) no Hoare annotation was computed. [2021-11-07 01:34:50,483 INFO L857 garLoopResultBuilder]: For program point L284-2(lines 284 301) no Hoare annotation was computed. [2021-11-07 01:34:50,484 INFO L853 garLoopResultBuilder]: At program point L284-3(lines 1 978) the Hoare annotation is: false [2021-11-07 01:34:50,484 INFO L857 garLoopResultBuilder]: For program point L284-4(lines 284 301) no Hoare annotation was computed. [2021-11-07 01:34:50,484 INFO L853 garLoopResultBuilder]: At program point L284-5(lines 1 978) the Hoare annotation is: false [2021-11-07 01:34:50,484 INFO L857 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2021-11-07 01:34:50,484 INFO L857 garLoopResultBuilder]: For program point L352(lines 352 356) no Hoare annotation was computed. [2021-11-07 01:34:50,485 INFO L857 garLoopResultBuilder]: For program point L352-2(lines 380 386) no Hoare annotation was computed. [2021-11-07 01:34:50,485 INFO L853 garLoopResultBuilder]: At program point L387(lines 387 393) the Hoare annotation is: (let ((.cse4 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2) (and .cse0 .cse4 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2) (and .cse0 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3))) [2021-11-07 01:34:50,485 INFO L853 garLoopResultBuilder]: At program point L387-1(lines 387 393) the Hoare annotation is: false [2021-11-07 01:34:50,485 INFO L853 garLoopResultBuilder]: At program point L387-2(lines 387 393) the Hoare annotation is: false [2021-11-07 01:34:50,485 INFO L857 garLoopResultBuilder]: For program point L288(lines 288 298) no Hoare annotation was computed. [2021-11-07 01:34:50,485 INFO L857 garLoopResultBuilder]: For program point L288-2(lines 288 298) no Hoare annotation was computed. [2021-11-07 01:34:50,486 INFO L857 garLoopResultBuilder]: For program point L288-4(lines 288 298) no Hoare annotation was computed. [2021-11-07 01:34:50,486 INFO L857 garLoopResultBuilder]: For program point L289(lines 289 295) no Hoare annotation was computed. [2021-11-07 01:34:50,486 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 01:34:50,486 INFO L857 garLoopResultBuilder]: For program point L289-2(lines 289 295) no Hoare annotation was computed. [2021-11-07 01:34:50,486 INFO L857 garLoopResultBuilder]: For program point L289-4(lines 289 295) no Hoare annotation was computed. [2021-11-07 01:34:50,487 INFO L857 garLoopResultBuilder]: For program point L192(lines 192 196) no Hoare annotation was computed. [2021-11-07 01:34:50,487 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 01:34:50,487 INFO L853 garLoopResultBuilder]: At program point L491(lines 486 494) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3) (and .cse0 .cse4 .cse1 .cse2 .cse3) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse4 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2))) [2021-11-07 01:34:50,487 INFO L853 garLoopResultBuilder]: At program point L491-1(lines 486 494) the Hoare annotation is: false [2021-11-07 01:34:50,487 INFO L853 garLoopResultBuilder]: At program point L491-2(lines 486 494) the Hoare annotation is: false [2021-11-07 01:34:50,487 INFO L857 garLoopResultBuilder]: For program point L326(lines 326 332) no Hoare annotation was computed. [2021-11-07 01:34:50,488 INFO L853 garLoopResultBuilder]: At program point L326-1(lines 326 332) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2) (and .cse0 .cse3 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse4) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2021-11-07 01:34:50,488 INFO L853 garLoopResultBuilder]: At program point L260(lines 255 263) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32))) [2021-11-07 01:34:50,488 INFO L853 garLoopResultBuilder]: At program point L260-1(lines 255 263) the Hoare annotation is: false [2021-11-07 01:34:50,488 INFO L853 garLoopResultBuilder]: At program point L260-2(lines 255 263) the Hoare annotation is: false [2021-11-07 01:34:50,488 INFO L853 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: false [2021-11-07 01:34:50,489 INFO L857 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2021-11-07 01:34:50,489 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 563) no Hoare annotation was computed. [2021-11-07 01:34:50,489 INFO L857 garLoopResultBuilder]: For program point L559-2(lines 559 563) no Hoare annotation was computed. [2021-11-07 01:34:50,489 INFO L857 garLoopResultBuilder]: For program point L559-3(lines 559 563) no Hoare annotation was computed. [2021-11-07 01:34:50,489 INFO L857 garLoopResultBuilder]: For program point L559-5(lines 559 563) no Hoare annotation was computed. [2021-11-07 01:34:50,490 INFO L857 garLoopResultBuilder]: For program point L559-6(lines 559 563) no Hoare annotation was computed. [2021-11-07 01:34:50,490 INFO L857 garLoopResultBuilder]: For program point L559-8(lines 559 563) no Hoare annotation was computed. [2021-11-07 01:34:50,490 INFO L853 garLoopResultBuilder]: At program point L362(lines 315 363) the Hoare annotation is: false [2021-11-07 01:34:50,490 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 01:34:50,490 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 940) no Hoare annotation was computed. [2021-11-07 01:34:50,490 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-07 01:34:50,491 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 380 386) no Hoare annotation was computed. [2021-11-07 01:34:50,494 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:50,496 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:34:50,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:34:50 BoogieIcfgContainer [2021-11-07 01:34:50,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:34:50,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:34:50,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:34:50,525 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:34:50,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:34:25" (3/4) ... [2021-11-07 01:34:50,529 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:34:50,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-11-07 01:34:50,555 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-07 01:34:50,556 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-07 01:34:50,558 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-07 01:34:50,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 01:34:50,561 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:34:50,562 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:34:50,604 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) [2021-11-07 01:34:50,605 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32 [2021-11-07 01:34:50,606 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:34:50,606 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) [2021-11-07 01:34:50,606 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && \result == 1bv32) && waterLevel == 1bv32 [2021-11-07 01:34:50,607 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && !(tmp == 0bv32)) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && tmp___0 == 0bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(tmp == 0bv32)) && systemActive == 1bv32) && \result == 0bv32) && tmp___0 == 0bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:34:50,666 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:34:50,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:34:50,669 INFO L168 Benchmark]: Toolchain (without parser) took 29301.18 ms. Allocated memory was 88.1 MB in the beginning and 132.1 MB in the end (delta: 44.0 MB). Free memory was 51.9 MB in the beginning and 102.6 MB in the end (delta: -50.6 MB). Peak memory consumption was 65.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:50,669 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 88.1 MB. Free memory is still 69.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:34:50,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.08 ms. Allocated memory is still 88.1 MB. Free memory was 51.8 MB in the beginning and 57.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:50,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.09 ms. Allocated memory is still 88.1 MB. Free memory was 57.7 MB in the beginning and 54.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:50,670 INFO L168 Benchmark]: Boogie Preprocessor took 61.31 ms. Allocated memory is still 88.1 MB. Free memory was 54.0 MB in the beginning and 51.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:50,671 INFO L168 Benchmark]: RCFGBuilder took 3122.34 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 51.2 MB in the beginning and 76.9 MB in the end (delta: -25.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:50,672 INFO L168 Benchmark]: TraceAbstraction took 25071.87 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 76.9 MB in the beginning and 36.8 MB in the end (delta: 40.1 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:50,672 INFO L168 Benchmark]: Witness Printer took 141.92 ms. Allocated memory is still 132.1 MB. Free memory was 36.8 MB in the beginning and 102.6 MB in the end (delta: -65.8 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:50,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 88.1 MB. Free memory is still 69.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 791.08 ms. Allocated memory is still 88.1 MB. Free memory was 51.8 MB in the beginning and 57.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.09 ms. Allocated memory is still 88.1 MB. Free memory was 57.7 MB in the beginning and 54.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.31 ms. Allocated memory is still 88.1 MB. Free memory was 54.0 MB in the beginning and 51.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3122.34 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 51.2 MB in the beginning and 76.9 MB in the end (delta: -25.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25071.87 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 76.9 MB in the beginning and 36.8 MB in the end (delta: 40.1 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. * Witness Printer took 141.92 ms. Allocated memory is still 132.1 MB. Free memory was 36.8 MB in the beginning and 102.6 MB in the end (delta: -65.8 MB). Peak memory consumption was 4.5 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 940]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 940]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 940]: 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, 121 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 24.9s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1257 SDtfs, 1679 SDslu, 2097 SDs, 0 SdLazy, 236 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1141 GetRequests, 1090 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=316occurred in iteration=10, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1028 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 43 PreInvPairs, 169 NumberOfFragments, 628 HoareAnnotationTreeSize, 43 FomulaSimplifications, 490476 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 43 FomulaSimplificationsInter, 163759 FormulaSimplificationTreeSizeReductionInter, 5.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 574 NumberOfCodeBlocks, 574 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1118 ConstructedInterpolants, 0 QuantifiedInterpolants, 2381 SizeOfPredicates, 27 NumberOfNonLiveVariables, 3312 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 30 InterpolantComputations, 24 PerfectInterpolantSequences, 148/184 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: 486]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && waterLevel == 1bv32)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 336]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && !(tmp == 0bv32)) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && tmp___0 == 0bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(tmp == 0bv32)) && systemActive == 1bv32) && \result == 0bv32) && tmp___0 == 0bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 970]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && \result == 1bv32) && waterLevel == 1bv32 - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 268]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32 RESULT: Ultimate proved your program to be correct! [2021-11-07 01:34:50,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66d720e3-8516-4e96-882c-569d1668928d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE