./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/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 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:02:11,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:02:11,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:02:11,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:02:11,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:02:11,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:02:11,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:02:11,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:02:11,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:02:11,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:02:11,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:02:11,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:02:11,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:02:11,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:02:11,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:02:11,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:02:11,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:02:11,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:02:11,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:02:11,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:02:11,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:02:11,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:02:11,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:02:11,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:02:11,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:02:11,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:02:11,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:02:11,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:02:11,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:02:11,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:02:11,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:02:11,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:02:11,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:02:11,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:02:11,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:02:11,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:02:11,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:02:11,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:02:11,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:02:11,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:02:11,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:02:11,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:02:11,966 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:02:11,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:02:11,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:02:11,969 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:02:11,969 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:02:11,969 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:02:11,970 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:02:11,970 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:02:11,978 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:02:11,978 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:02:11,980 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:02:11,980 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:02:11,980 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:02:11,981 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:02:11,981 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:02:11,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:02:11,982 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:02:11,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:02:11,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:02:11,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:02:11,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:02:11,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:02:11,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:02:11,984 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:02:11,985 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:02:11,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:02:11,985 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:02:11,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:02:11,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:02:11,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:02:11,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:11,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:02:11,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:02:11,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:02:11,988 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:02:11,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:02:11,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:02:11,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:02:11,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:02:11,989 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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 [2021-11-07 02:02:12,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:02:12,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:02:12,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:02:12,360 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:02:12,361 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:02:12,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2021-11-07 02:02:12,441 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/data/b597c0a38/7130a5eea71c44a7bcab668ae3ff4272/FLAG533567cf9 [2021-11-07 02:02:13,192 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:02:13,193 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2021-11-07 02:02:13,216 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/data/b597c0a38/7130a5eea71c44a7bcab668ae3ff4272/FLAG533567cf9 [2021-11-07 02:02:13,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/data/b597c0a38/7130a5eea71c44a7bcab668ae3ff4272 [2021-11-07 02:02:13,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:02:13,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:02:13,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:13,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:02:13,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:02:13,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:13" (1/1) ... [2021-11-07 02:02:13,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@396f9d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:13, skipping insertion in model container [2021-11-07 02:02:13,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:13" (1/1) ... [2021-11-07 02:02:13,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:02:13,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:13,707 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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[2044,2057] [2021-11-07 02:02:13,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:13,859 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 02:02:13,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5473d754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:13, skipping insertion in model container [2021-11-07 02:02:13,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:13,861 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:02:13,864 INFO L168 Benchmark]: Toolchain (without parser) took 406.79 ms. Allocated memory is still 90.2 MB. Free memory was 61.4 MB in the beginning and 47.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:13,865 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 90.2 MB. Free memory is still 59.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:02:13,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.56 ms. Allocated memory is still 90.2 MB. Free memory was 61.1 MB in the beginning and 47.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:13,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 90.2 MB. Free memory is still 59.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 403.56 ms. Allocated memory is still 90.2 MB. Free memory was 61.1 MB in the beginning and 47.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 116]: 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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/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 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:02:16,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:02:16,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:02:16,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:02:16,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:02:16,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:02:16,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:02:16,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:02:16,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:02:16,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:02:16,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:02:16,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:02:16,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:02:16,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:02:16,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:02:16,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:02:16,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:02:16,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:02:16,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:02:16,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:02:16,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:02:16,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:02:16,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:02:16,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:02:16,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:02:16,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:02:16,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:02:16,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:02:16,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:02:16,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:02:16,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:02:16,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:02:16,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:02:16,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:02:16,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:02:16,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:02:16,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:02:16,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:02:16,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:02:16,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:02:16,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:02:16,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 02:02:16,874 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:02:16,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:02:16,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:02:16,877 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:02:16,877 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:02:16,877 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:02:16,877 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:02:16,878 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:02:16,878 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:02:16,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:02:16,881 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:02:16,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:02:16,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:02:16,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:02:16,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:02:16,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:02:16,883 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:02:16,883 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:02:16,884 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:02:16,884 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:02:16,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:02:16,885 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:02:16,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:02:16,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:02:16,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:02:16,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:02:16,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:16,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:02:16,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:02:16,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:02:16,887 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:02:16,888 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:02:16,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:02:16,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:02:16,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:02:16,889 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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 [2021-11-07 02:02:17,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:02:17,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:02:17,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:02:17,415 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:02:17,416 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:02:17,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2021-11-07 02:02:17,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/data/36e0e2521/575a11d04e224c9ea37ff65b71bdcbb7/FLAG3f30af844 [2021-11-07 02:02:18,266 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:02:18,267 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2021-11-07 02:02:18,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/data/36e0e2521/575a11d04e224c9ea37ff65b71bdcbb7/FLAG3f30af844 [2021-11-07 02:02:18,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/data/36e0e2521/575a11d04e224c9ea37ff65b71bdcbb7 [2021-11-07 02:02:18,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:02:18,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:02:18,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:18,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:02:18,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:02:18,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:18" (1/1) ... [2021-11-07 02:02:18,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b765a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:18, skipping insertion in model container [2021-11-07 02:02:18,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:18" (1/1) ... [2021-11-07 02:02:18,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:02:18,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:18,755 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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[2044,2057] [2021-11-07 02:02:18,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:19,023 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:02:19,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:19,069 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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[2044,2057] [2021-11-07 02:02:19,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:19,190 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:02:19,207 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_6ea38615-c8aa-4fc6-8490-89a09d5ff658/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[2044,2057] [2021-11-07 02:02:19,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:19,296 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:02:19,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19 WrapperNode [2021-11-07 02:02:19,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:19,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:02:19,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:02:19,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:02:19,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19" (1/1) ... [2021-11-07 02:02:19,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19" (1/1) ... [2021-11-07 02:02:19,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:02:19,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:02:19,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:02:19,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:02:19,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19" (1/1) ... [2021-11-07 02:02:19,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19" (1/1) ... [2021-11-07 02:02:19,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19" (1/1) ... [2021-11-07 02:02:19,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19" (1/1) ... [2021-11-07 02:02:19,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19" (1/1) ... [2021-11-07 02:02:19,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19" (1/1) ... [2021-11-07 02:02:19,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19" (1/1) ... [2021-11-07 02:02:19,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:02:19,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:02:19,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:02:19,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:02:19,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19" (1/1) ... [2021-11-07 02:02:19,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:19,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:02:19,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:02:19,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:02:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:02:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:02:19,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:02:19,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:02:22,793 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:02:22,794 INFO L299 CfgBuilder]: Removed 276 assume(true) statements. [2021-11-07 02:02:22,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:02:22 BoogieIcfgContainer [2021-11-07 02:02:22,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:02:22,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:02:22,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:02:22,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:02:22,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:02:18" (1/3) ... [2021-11-07 02:02:22,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f624fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:02:22, skipping insertion in model container [2021-11-07 02:02:22,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:19" (2/3) ... [2021-11-07 02:02:22,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f624fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:02:22, skipping insertion in model container [2021-11-07 02:02:22,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:02:22" (3/3) ... [2021-11-07 02:02:22,808 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2021-11-07 02:02:22,815 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:02:22,815 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 02:02:22,878 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:02:22,886 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 02:02:22,886 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 02:02:22,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 185 states have (on average 1.5567567567567568) internal successors, (288), 188 states have internal predecessors, (288), 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 02:02:22,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 02:02:22,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:22,919 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:22,920 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 02:02:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:22,927 INFO L85 PathProgramCache]: Analyzing trace with hash 2002794138, now seen corresponding path program 1 times [2021-11-07 02:02:22,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:22,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519894104] [2021-11-07 02:02:22,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:22,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:22,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:22,950 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:22,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:02:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:23,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:02:23,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:23,360 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 02:02:23,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:23,466 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 02:02:23,467 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:23,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519894104] [2021-11-07 02:02:23,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519894104] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:23,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:23,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:02:23,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771106083] [2021-11-07 02:02:23,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:02:23,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:23,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:02:23,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:02:23,516 INFO L87 Difference]: Start difference. First operand has 189 states, 185 states have (on average 1.5567567567567568) internal successors, (288), 188 states have internal predecessors, (288), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 02:02:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:23,629 INFO L93 Difference]: Finished difference Result 372 states and 569 transitions. [2021-11-07 02:02:23,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:02:23,631 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-11-07 02:02:23,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:23,662 INFO L225 Difference]: With dead ends: 372 [2021-11-07 02:02:23,662 INFO L226 Difference]: Without dead ends: 185 [2021-11-07 02:02:23,667 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:02:23,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-07 02:02:23,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2021-11-07 02:02:23,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 184 states have internal predecessors, (276), 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 02:02:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2021-11-07 02:02:23,738 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 276 transitions. Word has length 16 [2021-11-07 02:02:23,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:23,738 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 276 transitions. [2021-11-07 02:02:23,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 02:02:23,739 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 276 transitions. [2021-11-07 02:02:23,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 02:02:23,741 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:23,741 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:23,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:23,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:23,957 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 02:02:23,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:23,958 INFO L85 PathProgramCache]: Analyzing trace with hash 956037241, now seen corresponding path program 1 times [2021-11-07 02:02:23,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:23,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762154994] [2021-11-07 02:02:23,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:23,960 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:23,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:23,962 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:23,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:02:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:24,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:02:24,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:24,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:24,405 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 02:02:24,405 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:24,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762154994] [2021-11-07 02:02:24,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762154994] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:24,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:24,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:02:24,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773458043] [2021-11-07 02:02:24,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:02:24,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:24,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:02:24,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:02:24,418 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 02:02:24,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:24,476 INFO L93 Difference]: Finished difference Result 185 states and 276 transitions. [2021-11-07 02:02:24,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:02:24,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 17 [2021-11-07 02:02:24,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:24,484 INFO L225 Difference]: With dead ends: 185 [2021-11-07 02:02:24,484 INFO L226 Difference]: Without dead ends: 71 [2021-11-07 02:02:24,489 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:02:24,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-07 02:02:24,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-07 02:02:24,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.5) internal successors, (105), 70 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:24,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2021-11-07 02:02:24,524 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 17 [2021-11-07 02:02:24,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:24,524 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2021-11-07 02:02:24,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 02:02:24,525 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2021-11-07 02:02:24,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 02:02:24,526 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:24,526 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] [2021-11-07 02:02:24,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:24,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:24,742 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 02:02:24,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:24,743 INFO L85 PathProgramCache]: Analyzing trace with hash 748559286, now seen corresponding path program 1 times [2021-11-07 02:02:24,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:24,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383757090] [2021-11-07 02:02:24,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:24,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:24,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:24,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:24,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:02:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:24,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:02:24,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:25,128 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 02:02:25,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:25,244 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 02:02:25,244 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:25,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383757090] [2021-11-07 02:02:25,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383757090] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:25,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:25,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:02:25,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711074103] [2021-11-07 02:02:25,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:02:25,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:25,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:02:25,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:02:25,255 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 02:02:25,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:25,295 INFO L93 Difference]: Finished difference Result 136 states and 204 transitions. [2021-11-07 02:02:25,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:02:25,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 22 [2021-11-07 02:02:25,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:25,297 INFO L225 Difference]: With dead ends: 136 [2021-11-07 02:02:25,300 INFO L226 Difference]: Without dead ends: 71 [2021-11-07 02:02:25,301 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:02:25,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-07 02:02:25,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-07 02:02:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 70 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 02:02:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2021-11-07 02:02:25,319 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 22 [2021-11-07 02:02:25,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:25,320 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2021-11-07 02:02:25,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 02:02:25,322 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2021-11-07 02:02:25,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 02:02:25,324 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:25,324 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] [2021-11-07 02:02:25,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:25,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:25,548 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 02:02:25,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:25,552 INFO L85 PathProgramCache]: Analyzing trace with hash -682519882, now seen corresponding path program 1 times [2021-11-07 02:02:25,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:25,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634937989] [2021-11-07 02:02:25,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:25,555 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:25,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:25,556 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:25,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:02:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:25,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:02:25,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:25,887 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 02:02:25,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:25,969 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 02:02:25,969 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:25,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634937989] [2021-11-07 02:02:25,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634937989] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:25,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:25,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:02:25,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546003916] [2021-11-07 02:02:25,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:02:25,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:25,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:02:25,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:02:25,973 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 02:02:26,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:26,060 INFO L93 Difference]: Finished difference Result 145 states and 214 transitions. [2021-11-07 02:02:26,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:02:26,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-11-07 02:02:26,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:26,062 INFO L225 Difference]: With dead ends: 145 [2021-11-07 02:02:26,062 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 02:02:26,062 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 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 02:02:26,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 02:02:26,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2021-11-07 02:02:26,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 77 states have internal predecessors, (110), 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 02:02:26,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2021-11-07 02:02:26,073 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 25 [2021-11-07 02:02:26,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:26,074 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2021-11-07 02:02:26,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 02:02:26,074 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2021-11-07 02:02:26,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 02:02:26,076 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:26,076 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] [2021-11-07 02:02:26,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:26,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:26,291 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 02:02:26,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:26,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1459548505, now seen corresponding path program 1 times [2021-11-07 02:02:26,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:26,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930278229] [2021-11-07 02:02:26,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:26,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:26,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:26,294 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:26,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:02:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:26,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:02:26,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:26,647 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 02:02:26,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:26,722 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 02:02:26,722 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:26,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930278229] [2021-11-07 02:02:26,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930278229] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:26,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:26,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:02:26,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351362480] [2021-11-07 02:02:26,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:02:26,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:26,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:02:26,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:02:26,730 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 02:02:26,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:26,863 INFO L93 Difference]: Finished difference Result 204 states and 285 transitions. [2021-11-07 02:02:26,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:02:26,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-11-07 02:02:26,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:26,865 INFO L225 Difference]: With dead ends: 204 [2021-11-07 02:02:26,865 INFO L226 Difference]: Without dead ends: 132 [2021-11-07 02:02:26,866 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 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 02:02:26,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-07 02:02:26,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 87. [2021-11-07 02:02:26,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.3837209302325582) internal successors, (119), 86 states have internal predecessors, (119), 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 02:02:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2021-11-07 02:02:26,894 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 31 [2021-11-07 02:02:26,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:26,895 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2021-11-07 02:02:26,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 02:02:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2021-11-07 02:02:26,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 02:02:26,897 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:26,897 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] [2021-11-07 02:02:26,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:27,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:27,103 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 02:02:27,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:27,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1202962538, now seen corresponding path program 1 times [2021-11-07 02:02:27,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:27,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191848199] [2021-11-07 02:02:27,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:27,105 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:27,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:27,106 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:27,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:02:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:27,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:02:27,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:27,571 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 02:02:27,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:27,727 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 02:02:27,727 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:27,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191848199] [2021-11-07 02:02:27,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191848199] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:27,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:27,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:02:27,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100418372] [2021-11-07 02:02:27,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:02:27,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:27,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:02:27,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:02:27,730 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 02:02:27,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:27,894 INFO L93 Difference]: Finished difference Result 431 states and 600 transitions. [2021-11-07 02:02:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:02:27,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2021-11-07 02:02:27,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:27,898 INFO L225 Difference]: With dead ends: 431 [2021-11-07 02:02:27,899 INFO L226 Difference]: Without dead ends: 350 [2021-11-07 02:02:27,899 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:02:27,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-07 02:02:27,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 162. [2021-11-07 02:02:27,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.3726708074534162) internal successors, (221), 161 states have internal predecessors, (221), 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 02:02:27,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 221 transitions. [2021-11-07 02:02:27,924 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 221 transitions. Word has length 31 [2021-11-07 02:02:27,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:27,925 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 221 transitions. [2021-11-07 02:02:27,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 02:02:27,925 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 221 transitions. [2021-11-07 02:02:27,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 02:02:27,927 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:27,927 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 02:02:27,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:28,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:28,144 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 02:02:28,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:28,144 INFO L85 PathProgramCache]: Analyzing trace with hash 552949620, now seen corresponding path program 1 times [2021-11-07 02:02:28,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:28,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211025130] [2021-11-07 02:02:28,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:28,146 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:28,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:28,147 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:28,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:02:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:28,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:02:28,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:28,618 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 02:02:28,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:28,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:28,727 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:28,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211025130] [2021-11-07 02:02:28,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211025130] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:28,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:28,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:02:28,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000651953] [2021-11-07 02:02:28,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:02:28,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:28,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:02:28,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:02:28,730 INFO L87 Difference]: Start difference. First operand 162 states and 221 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 02:02:28,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:28,969 INFO L93 Difference]: Finished difference Result 470 states and 642 transitions. [2021-11-07 02:02:28,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:02:28,970 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 02:02:28,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:28,974 INFO L225 Difference]: With dead ends: 470 [2021-11-07 02:02:28,975 INFO L226 Difference]: Without dead ends: 468 [2021-11-07 02:02:28,975 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 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 02:02:28,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2021-11-07 02:02:28,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 162. [2021-11-07 02:02:28,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.3664596273291925) internal successors, (220), 161 states have internal predecessors, (220), 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 02:02:29,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 220 transitions. [2021-11-07 02:02:29,000 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 220 transitions. Word has length 32 [2021-11-07 02:02:29,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:29,000 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 220 transitions. [2021-11-07 02:02:29,001 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 02:02:29,001 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 220 transitions. [2021-11-07 02:02:29,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 02:02:29,002 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:29,003 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 02:02:29,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:29,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:29,218 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 02:02:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1792378863, now seen corresponding path program 1 times [2021-11-07 02:02:29,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:29,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70870669] [2021-11-07 02:02:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:29,220 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:29,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:29,221 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:29,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:02:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:29,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:02:29,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:29,620 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 02:02:29,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:29,723 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 02:02:29,723 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:29,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [70870669] [2021-11-07 02:02:29,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [70870669] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:29,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:29,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:02:29,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515492955] [2021-11-07 02:02:29,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:02:29,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:29,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:02:29,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:02:29,725 INFO L87 Difference]: Start difference. First operand 162 states and 220 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 02:02:29,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:29,832 INFO L93 Difference]: Finished difference Result 428 states and 574 transitions. [2021-11-07 02:02:29,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:02:29,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 02:02:29,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:29,835 INFO L225 Difference]: With dead ends: 428 [2021-11-07 02:02:29,836 INFO L226 Difference]: Without dead ends: 272 [2021-11-07 02:02:29,836 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 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 02:02:29,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-07 02:02:29,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 174. [2021-11-07 02:02:29,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.3410404624277457) internal successors, (232), 173 states have internal predecessors, (232), 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 02:02:29,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 232 transitions. [2021-11-07 02:02:29,861 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 232 transitions. Word has length 32 [2021-11-07 02:02:29,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:29,862 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 232 transitions. [2021-11-07 02:02:29,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 02:02:29,862 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 232 transitions. [2021-11-07 02:02:29,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 02:02:29,864 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:29,864 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 02:02:29,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:30,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:30,079 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 02:02:30,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:30,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2050544301, now seen corresponding path program 1 times [2021-11-07 02:02:30,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:30,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752969827] [2021-11-07 02:02:30,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:30,081 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:30,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:30,082 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:30,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:02:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:30,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:02:30,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:30,536 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 02:02:30,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:30,664 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 02:02:30,664 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:30,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752969827] [2021-11-07 02:02:30,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752969827] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:30,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:30,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:02:30,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306934547] [2021-11-07 02:02:30,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:02:30,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:30,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:02:30,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:02:30,667 INFO L87 Difference]: Start difference. First operand 174 states and 232 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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 02:02:30,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:30,795 INFO L93 Difference]: Finished difference Result 520 states and 696 transitions. [2021-11-07 02:02:30,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:02:30,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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 02:02:30,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:30,798 INFO L225 Difference]: With dead ends: 520 [2021-11-07 02:02:30,799 INFO L226 Difference]: Without dead ends: 352 [2021-11-07 02:02:30,799 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 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 02:02:30,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-11-07 02:02:30,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 298. [2021-11-07 02:02:30,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 1.3232323232323233) internal successors, (393), 297 states have internal predecessors, (393), 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 02:02:30,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 393 transitions. [2021-11-07 02:02:30,839 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 393 transitions. Word has length 32 [2021-11-07 02:02:30,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:30,839 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 393 transitions. [2021-11-07 02:02:30,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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 02:02:30,840 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 393 transitions. [2021-11-07 02:02:30,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 02:02:30,841 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:30,841 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 02:02:30,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:31,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:31,056 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 02:02:31,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:31,057 INFO L85 PathProgramCache]: Analyzing trace with hash 979497771, now seen corresponding path program 1 times [2021-11-07 02:02:31,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:31,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293899948] [2021-11-07 02:02:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:31,058 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:31,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:31,059 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:31,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:02:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:02:32,767 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 02:02:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:02:34,639 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 02:02:34,640 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 02:02:34,641 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:02:34,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:02:34,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:02:34,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:34,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:34,863 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:34,868 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:02:35,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:02:35 BoogieIcfgContainer [2021-11-07 02:02:35,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:02:35,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:02:35,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:02:35,055 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:02:35,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:02:22" (3/4) ... [2021-11-07 02:02:35,063 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 02:02:35,179 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 02:02:35,180 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:02:35,181 INFO L168 Benchmark]: Toolchain (without parser) took 16729.35 ms. Allocated memory was 65.0 MB in the beginning and 113.2 MB in the end (delta: 48.2 MB). Free memory was 44.5 MB in the beginning and 70.4 MB in the end (delta: -25.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:35,182 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 65.0 MB. Free memory is still 47.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:02:35,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 844.15 ms. Allocated memory was 65.0 MB in the beginning and 94.4 MB in the end (delta: 29.4 MB). Free memory was 44.3 MB in the beginning and 64.3 MB in the end (delta: -20.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:35,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.38 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 59.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:35,183 INFO L168 Benchmark]: Boogie Preprocessor took 108.59 ms. Allocated memory is still 94.4 MB. Free memory was 59.5 MB in the beginning and 56.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:35,183 INFO L168 Benchmark]: RCFGBuilder took 3266.86 ms. Allocated memory is still 94.4 MB. Free memory was 56.0 MB in the beginning and 53.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:35,184 INFO L168 Benchmark]: TraceAbstraction took 12253.88 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 53.0 MB in the beginning and 85.1 MB in the end (delta: -32.1 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:35,184 INFO L168 Benchmark]: Witness Printer took 125.49 ms. Allocated memory is still 113.2 MB. Free memory was 85.1 MB in the beginning and 70.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:35,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 65.0 MB. Free memory is still 47.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 844.15 ms. Allocated memory was 65.0 MB in the beginning and 94.4 MB in the end (delta: 29.4 MB). Free memory was 44.3 MB in the beginning and 64.3 MB in the end (delta: -20.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 121.38 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 59.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.59 ms. Allocated memory is still 94.4 MB. Free memory was 59.5 MB in the beginning and 56.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3266.86 ms. Allocated memory is still 94.4 MB. Free memory was 56.0 MB in the beginning and 53.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12253.88 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 53.0 MB in the beginning and 85.1 MB in the end (delta: -32.1 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. * Witness Printer took 125.49 ms. Allocated memory is still 113.2 MB. Free memory was 85.1 MB in the beginning and 70.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 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 - CounterExampleResult [Line: 83]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L564] int pumpRunning = 0; [L565] int systemActive = 1; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] int retValue_acc ; [L536] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L878] int retValue_acc ; [L881] retValue_acc = 1 [L882] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L542] tmp = valid_product() [L544] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L788] int splverifierCounter ; [L789] int tmp ; [L790] int tmp___0 ; [L791] int tmp___1 ; [L792] int tmp___2 ; [L795] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L797] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L799] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L805] tmp = __VERIFIER_nondet_int() [L807] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] COND TRUE waterLevel < 2 [L907] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L815] tmp___0 = __VERIFIER_nondet_int() [L817] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L918] COND FALSE !(\read(methaneLevelCritical)) [L921] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L825] tmp___2 = __VERIFIER_nondet_int() [L827] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L571] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L578] COND TRUE \read(systemActive) [L652] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L655] COND FALSE !(\read(pumpRunning)) [L626] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] COND FALSE !(\read(pumpRunning)) [L600] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L603] COND TRUE ! pumpRunning [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L968] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L971] COND FALSE !(waterLevel < 2) [L975] retValue_acc = 0 [L976] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L755] tmp = isHighWaterSensorDry() [L757] COND FALSE !(\read(tmp)) [L760] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L605] tmp = isHighWaterLevel() [L607] COND TRUE \read(tmp) [L680] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L54] int tmp ; [L55] int tmp___0 ; [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] tmp = isMethaneLevelCritical() [L61] COND TRUE \read(tmp) [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L63] tmp___0 = isPumpRunning() [L65] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L83] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 83]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 83]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 189 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 11.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1163 SDtfs, 1385 SDslu, 1395 SDs, 0 SdLazy, 212 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 474 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 693 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 458 ConstructedInterpolants, 0 QuantifiedInterpolants, 827 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1830 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-07 02:02:35,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea38615-c8aa-4fc6-8490-89a09d5ff658/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE