./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/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_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/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 64bit --witnessprinter.graph.data.programhash a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:21:02,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:21:02,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:21:02,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:21:02,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:21:02,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:21:02,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:21:02,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:21:02,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:21:02,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:21:02,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:21:02,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:21:02,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:21:02,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:21:02,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:21:02,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:21:02,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:21:02,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:21:02,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:21:02,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:21:02,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:21:02,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:21:02,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:21:02,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:21:02,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:21:02,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:21:02,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:21:02,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:21:02,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:21:02,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:21:02,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:21:02,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:21:02,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:21:02,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:21:02,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:21:02,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:21:02,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:21:02,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:21:02,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:21:02,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:21:02,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:21:02,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:21:02,844 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:21:02,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:21:02,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:21:02,847 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:21:02,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:21:02,847 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:21:02,848 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:21:02,848 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:21:02,848 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:21:02,848 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:21:02,849 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:21:02,850 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:21:02,850 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:21:02,850 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:21:02,851 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:21:02,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:21:02,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:21:02,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:21:02,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:21:02,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:21:02,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:21:02,853 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:21:02,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:21:02,853 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:21:02,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:21:02,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:21:02,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:21:02,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:21:02,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:21:02,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:21:02,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:21:02,856 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:21:02,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:21:02,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:21:02,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:21:02,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:21:02,858 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_13920dc1-f06f-4e64-90ce-9f32241d0812/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 [2021-11-07 02:21:03,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:21:03,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:21:03,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:21:03,151 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:21:03,153 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:21:03,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2021-11-07 02:21:03,232 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/data/110c0ff36/517a43d35f11444687d49af0c24c5583/FLAG980861f01 [2021-11-07 02:21:04,039 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:21:04,039 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2021-11-07 02:21:04,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/data/110c0ff36/517a43d35f11444687d49af0c24c5583/FLAG980861f01 [2021-11-07 02:21:04,134 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/data/110c0ff36/517a43d35f11444687d49af0c24c5583 [2021-11-07 02:21:04,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:21:04,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:21:04,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:21:04,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:21:04,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:21:04,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:04" (1/1) ... [2021-11-07 02:21:04,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24766e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:04, skipping insertion in model container [2021-11-07 02:21:04,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:04" (1/1) ... [2021-11-07 02:21:04,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:21:04,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:21:05,007 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:21:05,030 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:21:05,164 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_13920dc1-f06f-4e64-90ce-9f32241d0812/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2021-11-07 02:21:05,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:21:05,247 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 02:21:05,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76f2919d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:05, skipping insertion in model container [2021-11-07 02:21:05,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:21:05,250 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:21:05,254 INFO L168 Benchmark]: Toolchain (without parser) took 1112.78 ms. Allocated memory was 86.0 MB in the beginning and 123.7 MB in the end (delta: 37.7 MB). Free memory was 51.9 MB in the beginning and 74.8 MB in the end (delta: -22.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:21:05,255 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 54.4 MB in the beginning and 54.4 MB in the end (delta: 43.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:21:05,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1109.85 ms. Allocated memory was 86.0 MB in the beginning and 123.7 MB in the end (delta: 37.7 MB). Free memory was 51.8 MB in the beginning and 74.8 MB in the end (delta: -23.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:21:05,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 54.4 MB in the beginning and 54.4 MB in the end (delta: 43.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1109.85 ms. Allocated memory was 86.0 MB in the beginning and 123.7 MB in the end (delta: 37.7 MB). Free memory was 51.8 MB in the beginning and 74.8 MB in the end (delta: -23.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2195]: 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_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/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_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/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 64bit --witnessprinter.graph.data.programhash a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:21:07,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:21:07,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:21:07,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:21:07,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:21:07,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:21:07,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:21:07,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:21:07,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:21:07,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:21:07,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:21:07,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:21:07,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:21:07,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:21:07,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:21:07,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:21:07,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:21:07,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:21:07,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:21:07,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:21:07,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:21:07,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:21:07,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:21:07,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:21:07,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:21:07,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:21:07,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:21:07,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:21:07,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:21:07,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:21:07,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:21:07,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:21:07,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:21:07,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:21:07,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:21:07,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:21:07,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:21:07,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:21:07,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:21:07,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:21:07,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:21:07,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:21:07,987 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:21:07,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:21:07,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:21:07,989 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:21:07,989 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:21:07,989 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:21:07,989 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:21:07,990 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:21:07,990 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:21:07,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:21:07,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:21:07,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:21:07,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:21:07,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:21:07,993 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:21:07,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:21:07,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:21:07,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:21:07,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:21:07,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:21:07,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:21:07,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:21:07,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:21:07,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:21:07,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:21:07,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:21:07,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:21:07,996 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:21:07,997 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:21:07,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:21:07,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:21:07,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:21:07,997 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_13920dc1-f06f-4e64-90ce-9f32241d0812/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 [2021-11-07 02:21:08,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:21:08,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:21:08,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:21:08,355 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:21:08,356 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:21:08,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2021-11-07 02:21:08,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/data/60335cde9/2b4dd18deded465d9f0e304407ad879a/FLAG3faa83f46 [2021-11-07 02:21:09,268 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:21:09,269 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2021-11-07 02:21:09,312 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/data/60335cde9/2b4dd18deded465d9f0e304407ad879a/FLAG3faa83f46 [2021-11-07 02:21:09,801 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/data/60335cde9/2b4dd18deded465d9f0e304407ad879a [2021-11-07 02:21:09,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:21:09,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:21:09,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:21:09,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:21:09,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:21:09,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:09" (1/1) ... [2021-11-07 02:21:09,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8c897c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:09, skipping insertion in model container [2021-11-07 02:21:09,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:09" (1/1) ... [2021-11-07 02:21:09,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:21:09,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:21:10,897 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_13920dc1-f06f-4e64-90ce-9f32241d0812/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2021-11-07 02:21:10,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:21:11,003 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:21:11,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:21:11,189 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_13920dc1-f06f-4e64-90ce-9f32241d0812/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2021-11-07 02:21:11,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:21:11,233 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:21:11,380 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_13920dc1-f06f-4e64-90ce-9f32241d0812/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2021-11-07 02:21:11,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:21:11,473 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:21:11,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11 WrapperNode [2021-11-07 02:21:11,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:21:11,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:21:11,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:21:11,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:21:11,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11" (1/1) ... [2021-11-07 02:21:11,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11" (1/1) ... [2021-11-07 02:21:11,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:21:11,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:21:11,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:21:11,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:21:11,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11" (1/1) ... [2021-11-07 02:21:11,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11" (1/1) ... [2021-11-07 02:21:11,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11" (1/1) ... [2021-11-07 02:21:11,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11" (1/1) ... [2021-11-07 02:21:11,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11" (1/1) ... [2021-11-07 02:21:12,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11" (1/1) ... [2021-11-07 02:21:12,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11" (1/1) ... [2021-11-07 02:21:12,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:21:12,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:21:12,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:21:12,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:21:12,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11" (1/1) ... [2021-11-07 02:21:12,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:21:12,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:21:12,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:21:12,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:21:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:21:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:21:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:21:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:21:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:21:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:21:12,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:21:12,165 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-07 02:21:12,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:21:12,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:21:12,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:21:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:21:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 02:21:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:21:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:21:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:21:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:21:12,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:21:27,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:21:27,058 INFO L299 CfgBuilder]: Removed 1146 assume(true) statements. [2021-11-07 02:21:27,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:21:27 BoogieIcfgContainer [2021-11-07 02:21:27,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:21:27,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:21:27,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:21:27,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:21:27,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:21:09" (1/3) ... [2021-11-07 02:21:27,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0e7a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:21:27, skipping insertion in model container [2021-11-07 02:21:27,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:11" (2/3) ... [2021-11-07 02:21:27,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0e7a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:21:27, skipping insertion in model container [2021-11-07 02:21:27,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:21:27" (3/3) ... [2021-11-07 02:21:27,070 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2021-11-07 02:21:27,075 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:21:27,076 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-07 02:21:27,156 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:21:27,164 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 02:21:27,168 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-07 02:21:27,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 953 states, 943 states have (on average 1.2629904559915164) internal successors, (1191), 952 states have internal predecessors, (1191), 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 02:21:27,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 02:21:27,225 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:21:27,226 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:21:27,227 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:21:27,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:21:27,233 INFO L85 PathProgramCache]: Analyzing trace with hash -531399952, now seen corresponding path program 1 times [2021-11-07 02:21:27,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:21:27,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028393560] [2021-11-07 02:21:27,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:21:27,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:21:27,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:21:27,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:21:27,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:21:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:21:28,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:21:28,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:21:28,362 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 02:21:28,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:21:28,428 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 02:21:28,430 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:21:28,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028393560] [2021-11-07 02:21:28,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028393560] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:21:28,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:21:28,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:21:28,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373328430] [2021-11-07 02:21:28,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:21:28,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:21:28,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:21:28,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:21:28,463 INFO L87 Difference]: Start difference. First operand has 953 states, 943 states have (on average 1.2629904559915164) internal successors, (1191), 952 states have internal predecessors, (1191), 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 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 02:21:30,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:21:30,892 INFO L93 Difference]: Finished difference Result 3768 states and 4713 transitions. [2021-11-07 02:21:30,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:21:30,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 12 [2021-11-07 02:21:30,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:21:30,928 INFO L225 Difference]: With dead ends: 3768 [2021-11-07 02:21:30,929 INFO L226 Difference]: Without dead ends: 2814 [2021-11-07 02:21:30,939 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 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 02:21:30,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2021-11-07 02:21:31,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2790. [2021-11-07 02:21:31,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2781 states have (on average 1.2366055375764113) internal successors, (3439), 2789 states have internal predecessors, (3439), 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 02:21:31,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3439 transitions. [2021-11-07 02:21:31,192 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3439 transitions. Word has length 12 [2021-11-07 02:21:31,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:21:31,193 INFO L470 AbstractCegarLoop]: Abstraction has 2790 states and 3439 transitions. [2021-11-07 02:21:31,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 02:21:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3439 transitions. [2021-11-07 02:21:31,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 02:21:31,197 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:21:31,198 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:21:31,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:21:31,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:21:31,413 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:21:31,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:21:31,414 INFO L85 PathProgramCache]: Analyzing trace with hash 451769504, now seen corresponding path program 1 times [2021-11-07 02:21:31,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:21:31,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468053426] [2021-11-07 02:21:31,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:21:31,417 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:21:31,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:21:31,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:21:31,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:21:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:21:32,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:21:32,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:21:32,510 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 02:21:32,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:21:32,594 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 02:21:32,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:21:32,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468053426] [2021-11-07 02:21:32,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468053426] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:21:32,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:21:32,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:21:32,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036795485] [2021-11-07 02:21:32,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:21:32,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:21:32,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:21:32,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:21:32,598 INFO L87 Difference]: Start difference. First operand 2790 states and 3439 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 02:21:34,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:21:34,865 INFO L93 Difference]: Finished difference Result 2790 states and 3439 transitions. [2021-11-07 02:21:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:21:34,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 02:21:34,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:21:34,882 INFO L225 Difference]: With dead ends: 2790 [2021-11-07 02:21:34,882 INFO L226 Difference]: Without dead ends: 2788 [2021-11-07 02:21:34,884 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 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 02:21:34,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2788 states. [2021-11-07 02:21:35,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2788 to 2788. [2021-11-07 02:21:35,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 2780 states have (on average 1.2363309352517986) internal successors, (3437), 2787 states have internal predecessors, (3437), 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 02:21:35,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 3437 transitions. [2021-11-07 02:21:35,062 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 3437 transitions. Word has length 16 [2021-11-07 02:21:35,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:21:35,063 INFO L470 AbstractCegarLoop]: Abstraction has 2788 states and 3437 transitions. [2021-11-07 02:21:35,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 02:21:35,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 3437 transitions. [2021-11-07 02:21:35,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 02:21:35,070 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:21:35,070 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 02:21:35,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:21:35,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:21:35,296 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:21:35,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:21:35,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1119953770, now seen corresponding path program 1 times [2021-11-07 02:21:35,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:21:35,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719019288] [2021-11-07 02:21:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:21:35,299 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:21:35,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:21:35,301 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:21:35,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:21:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:21:36,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:21:36,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:21:36,527 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 02:21:36,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:21:36,609 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 02:21:36,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:21:36,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719019288] [2021-11-07 02:21:36,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719019288] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:21:36,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:21:36,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:21:36,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288202947] [2021-11-07 02:21:36,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:21:36,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:21:36,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:21:36,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:21:36,612 INFO L87 Difference]: Start difference. First operand 2788 states and 3437 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 02:21:38,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:21:38,931 INFO L93 Difference]: Finished difference Result 2788 states and 3437 transitions. [2021-11-07 02:21:38,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:21:38,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 02:21:38,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:21:38,948 INFO L225 Difference]: With dead ends: 2788 [2021-11-07 02:21:38,948 INFO L226 Difference]: Without dead ends: 2786 [2021-11-07 02:21:38,949 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 02:21:38,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2021-11-07 02:21:39,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2786. [2021-11-07 02:21:39,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 2779 states have (on average 1.2360561353004678) internal successors, (3435), 2785 states have internal predecessors, (3435), 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 02:21:39,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3435 transitions. [2021-11-07 02:21:39,166 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3435 transitions. Word has length 17 [2021-11-07 02:21:39,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:21:39,166 INFO L470 AbstractCegarLoop]: Abstraction has 2786 states and 3435 transitions. [2021-11-07 02:21:39,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 02:21:39,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3435 transitions. [2021-11-07 02:21:39,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 02:21:39,168 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:21:39,169 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 02:21:39,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:21:39,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:21:39,382 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:21:39,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:21:39,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1501511651, now seen corresponding path program 1 times [2021-11-07 02:21:39,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:21:39,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128542999] [2021-11-07 02:21:39,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:21:39,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:21:39,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:21:39,387 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:21:39,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:21:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:21:40,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:21:40,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:21:40,437 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 02:21:40,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:21:40,507 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 02:21:40,507 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:21:40,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128542999] [2021-11-07 02:21:40,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128542999] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:21:40,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:21:40,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:21:40,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316613781] [2021-11-07 02:21:40,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:21:40,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:21:40,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:21:40,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:21:40,510 INFO L87 Difference]: Start difference. First operand 2786 states and 3435 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 02:21:41,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:21:41,054 INFO L93 Difference]: Finished difference Result 8012 states and 9856 transitions. [2021-11-07 02:21:41,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:21:41,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 02:21:41,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:21:41,087 INFO L225 Difference]: With dead ends: 8012 [2021-11-07 02:21:41,092 INFO L226 Difference]: Without dead ends: 5229 [2021-11-07 02:21:41,099 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 02:21:41,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5229 states. [2021-11-07 02:21:41,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5229 to 5223. [2021-11-07 02:21:41,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5216 states have (on average 1.2300613496932515) internal successors, (6416), 5222 states have internal predecessors, (6416), 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 02:21:41,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 6416 transitions. [2021-11-07 02:21:41,522 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 6416 transitions. Word has length 17 [2021-11-07 02:21:41,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:21:41,523 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 6416 transitions. [2021-11-07 02:21:41,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 02:21:41,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 6416 transitions. [2021-11-07 02:21:41,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 02:21:41,525 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:21:41,525 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:21:41,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:21:41,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:21:41,741 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:21:41,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:21:41,742 INFO L85 PathProgramCache]: Analyzing trace with hash 358829546, now seen corresponding path program 1 times [2021-11-07 02:21:41,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:21:41,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63647750] [2021-11-07 02:21:41,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:21:41,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:21:41,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:21:41,745 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:21:41,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:21:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:21:42,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:21:42,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:21:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:21:42,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:21:42,878 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 02:21:42,878 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:21:42,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63647750] [2021-11-07 02:21:42,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63647750] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:21:42,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:21:42,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:21:42,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684939784] [2021-11-07 02:21:42,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:21:42,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:21:42,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:21:42,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:21:42,881 INFO L87 Difference]: Start difference. First operand 5223 states and 6416 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:21:45,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:21:45,618 INFO L93 Difference]: Finished difference Result 15612 states and 19188 transitions. [2021-11-07 02:21:45,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:21:45,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-07 02:21:45,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:21:45,675 INFO L225 Difference]: With dead ends: 15612 [2021-11-07 02:21:45,675 INFO L226 Difference]: Without dead ends: 10388 [2021-11-07 02:21:45,689 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 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 02:21:45,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10388 states. [2021-11-07 02:21:46,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10388 to 9455. [2021-11-07 02:21:46,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9455 states, 9448 states have (on average 1.2286198137171889) internal successors, (11608), 9454 states have internal predecessors, (11608), 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 02:21:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9455 states to 9455 states and 11608 transitions. [2021-11-07 02:21:46,377 INFO L78 Accepts]: Start accepts. Automaton has 9455 states and 11608 transitions. Word has length 18 [2021-11-07 02:21:46,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:21:46,378 INFO L470 AbstractCegarLoop]: Abstraction has 9455 states and 11608 transitions. [2021-11-07 02:21:46,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:21:46,378 INFO L276 IsEmpty]: Start isEmpty. Operand 9455 states and 11608 transitions. [2021-11-07 02:21:46,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 02:21:46,381 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:21:46,382 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:21:46,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:21:46,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:21:46,597 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:21:46,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:21:46,598 INFO L85 PathProgramCache]: Analyzing trace with hash -650167165, now seen corresponding path program 1 times [2021-11-07 02:21:46,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:21:46,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081601693] [2021-11-07 02:21:46,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:21:46,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:21:46,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:21:46,601 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:21:46,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:21:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:21:47,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:21:47,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:21:47,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:21:47,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:21:47,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:21:47,847 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:21:47,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081601693] [2021-11-07 02:21:47,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081601693] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:21:47,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:21:47,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:21:47,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103572903] [2021-11-07 02:21:47,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:21:47,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:21:47,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:21:47,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:21:47,850 INFO L87 Difference]: Start difference. First operand 9455 states and 11608 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 02:21:50,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:21:50,949 INFO L93 Difference]: Finished difference Result 28787 states and 35383 transitions. [2021-11-07 02:21:50,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:21:50,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 37 [2021-11-07 02:21:50,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:21:51,029 INFO L225 Difference]: With dead ends: 28787 [2021-11-07 02:21:51,029 INFO L226 Difference]: Without dead ends: 19335 [2021-11-07 02:21:51,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 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 02:21:51,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19335 states. [2021-11-07 02:21:52,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19335 to 19323. [2021-11-07 02:21:52,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19323 states, 19316 states have (on average 1.2279975150134603) internal successors, (23720), 19322 states have internal predecessors, (23720), 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 02:21:52,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19323 states to 19323 states and 23720 transitions. [2021-11-07 02:21:52,407 INFO L78 Accepts]: Start accepts. Automaton has 19323 states and 23720 transitions. Word has length 37 [2021-11-07 02:21:52,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:21:52,408 INFO L470 AbstractCegarLoop]: Abstraction has 19323 states and 23720 transitions. [2021-11-07 02:21:52,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 02:21:52,409 INFO L276 IsEmpty]: Start isEmpty. Operand 19323 states and 23720 transitions. [2021-11-07 02:21:52,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 02:21:52,416 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:21:52,417 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:21:52,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:21:52,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:21:52,642 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:21:52,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:21:52,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1314083201, now seen corresponding path program 1 times [2021-11-07 02:21:52,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:21:52,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490768208] [2021-11-07 02:21:52,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:21:52,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:21:52,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:21:52,645 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:21:52,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:21:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:21:53,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:21:53,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:21:53,949 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 02:21:53,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:21:54,282 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 02:21:54,283 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:21:54,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490768208] [2021-11-07 02:21:54,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490768208] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:21:54,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:21:54,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 02:21:54,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111352927] [2021-11-07 02:21:54,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:21:54,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:21:54,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:21:54,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:21:54,285 INFO L87 Difference]: Start difference. First operand 19323 states and 23720 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 02:21:56,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:21:56,481 INFO L93 Difference]: Finished difference Result 57741 states and 70875 transitions. [2021-11-07 02:21:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:21:56,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 49 [2021-11-07 02:21:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:21:56,587 INFO L225 Difference]: With dead ends: 57741 [2021-11-07 02:21:56,588 INFO L226 Difference]: Without dead ends: 38421 [2021-11-07 02:21:56,627 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 92 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 02:21:56,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38421 states. [2021-11-07 02:21:57,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38421 to 19323. [2021-11-07 02:21:57,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19323 states, 19316 states have (on average 1.2277904328018223) internal successors, (23716), 19322 states have internal predecessors, (23716), 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 02:21:57,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19323 states to 19323 states and 23716 transitions. [2021-11-07 02:21:57,995 INFO L78 Accepts]: Start accepts. Automaton has 19323 states and 23716 transitions. Word has length 49 [2021-11-07 02:21:57,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:21:57,995 INFO L470 AbstractCegarLoop]: Abstraction has 19323 states and 23716 transitions. [2021-11-07 02:21:57,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 02:21:57,996 INFO L276 IsEmpty]: Start isEmpty. Operand 19323 states and 23716 transitions. [2021-11-07 02:21:58,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 02:21:58,003 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:21:58,003 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:21:58,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:21:58,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:21:58,217 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:21:58,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:21:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2071652828, now seen corresponding path program 1 times [2021-11-07 02:21:58,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:21:58,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980933562] [2021-11-07 02:21:58,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:21:58,220 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:21:58,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:21:58,221 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:21:58,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:21:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:21:59,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:21:59,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:21:59,557 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 02:21:59,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:21:59,901 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 02:21:59,901 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:21:59,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980933562] [2021-11-07 02:21:59,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980933562] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:21:59,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:21:59,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 02:21:59,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405833582] [2021-11-07 02:21:59,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:21:59,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:21:59,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:21:59,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:21:59,904 INFO L87 Difference]: Start difference. First operand 19323 states and 23716 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 02:22:02,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:22:02,714 INFO L93 Difference]: Finished difference Result 57681 states and 70791 transitions. [2021-11-07 02:22:02,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:22:02,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 50 [2021-11-07 02:22:02,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:22:02,806 INFO L225 Difference]: With dead ends: 57681 [2021-11-07 02:22:02,807 INFO L226 Difference]: Without dead ends: 38361 [2021-11-07 02:22:02,853 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 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 02:22:02,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38361 states. [2021-11-07 02:22:04,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38361 to 19263. [2021-11-07 02:22:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19263 states, 19256 states have (on average 1.227253842958039) internal successors, (23632), 19262 states have internal predecessors, (23632), 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 02:22:04,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19263 states to 19263 states and 23632 transitions. [2021-11-07 02:22:04,530 INFO L78 Accepts]: Start accepts. Automaton has 19263 states and 23632 transitions. Word has length 50 [2021-11-07 02:22:04,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:22:04,531 INFO L470 AbstractCegarLoop]: Abstraction has 19263 states and 23632 transitions. [2021-11-07 02:22:04,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 02:22:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 19263 states and 23632 transitions. [2021-11-07 02:22:04,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 02:22:04,539 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:22:04,539 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:22:04,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:22:04,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:22:04,753 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:22:04,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:22:04,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1291050226, now seen corresponding path program 1 times [2021-11-07 02:22:04,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:22:04,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929137787] [2021-11-07 02:22:04,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:22:04,755 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:22:04,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:22:04,756 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:22:04,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:22:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:22:05,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:22:05,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:22:06,056 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 02:22:06,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:22:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 02:22:06,177 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:22:06,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929137787] [2021-11-07 02:22:06,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929137787] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:22:06,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:22:06,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:22:06,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870035537] [2021-11-07 02:22:06,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:22:06,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:22:06,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:22:06,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:22:06,179 INFO L87 Difference]: Start difference. First operand 19263 states and 23632 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 02:22:09,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:22:09,948 INFO L93 Difference]: Finished difference Result 38523 states and 47261 transitions. [2021-11-07 02:22:09,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:22:09,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 52 [2021-11-07 02:22:09,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:22:09,983 INFO L225 Difference]: With dead ends: 38523 [2021-11-07 02:22:09,984 INFO L226 Difference]: Without dead ends: 19263 [2021-11-07 02:22:10,005 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 02:22:10,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19263 states. [2021-11-07 02:22:11,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19263 to 19231. [2021-11-07 02:22:11,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19231 states, 19224 states have (on average 1.2264877236787348) internal successors, (23578), 19230 states have internal predecessors, (23578), 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 02:22:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19231 states to 19231 states and 23578 transitions. [2021-11-07 02:22:11,696 INFO L78 Accepts]: Start accepts. Automaton has 19231 states and 23578 transitions. Word has length 52 [2021-11-07 02:22:11,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:22:11,696 INFO L470 AbstractCegarLoop]: Abstraction has 19231 states and 23578 transitions. [2021-11-07 02:22:11,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 02:22:11,697 INFO L276 IsEmpty]: Start isEmpty. Operand 19231 states and 23578 transitions. [2021-11-07 02:22:11,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 02:22:11,704 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:22:11,705 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:22:11,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:22:11,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:22:11,920 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:22:11,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:22:11,920 INFO L85 PathProgramCache]: Analyzing trace with hash -589985648, now seen corresponding path program 1 times [2021-11-07 02:22:11,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:22:11,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283494606] [2021-11-07 02:22:11,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:22:11,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:22:11,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:22:11,923 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:22:11,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:22:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:22:13,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:22:13,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:22:13,303 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 02:22:13,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:22:13,466 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 02:22:13,466 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:22:13,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283494606] [2021-11-07 02:22:13,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283494606] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:22:13,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:22:13,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 02:22:13,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321795062] [2021-11-07 02:22:13,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:22:13,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:22:13,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:22:13,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:22:13,468 INFO L87 Difference]: Start difference. First operand 19231 states and 23578 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 02:22:19,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:22:19,466 INFO L93 Difference]: Finished difference Result 66308 states and 81332 transitions. [2021-11-07 02:22:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:22:19,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 52 [2021-11-07 02:22:19,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:22:19,563 INFO L225 Difference]: With dead ends: 66308 [2021-11-07 02:22:19,563 INFO L226 Difference]: Without dead ends: 66277 [2021-11-07 02:22:19,576 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:22:19,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66277 states. [2021-11-07 02:22:21,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66277 to 19200. [2021-11-07 02:22:21,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19200 states, 19195 states have (on average 1.2263610315186246) internal successors, (23540), 19199 states have internal predecessors, (23540), 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 02:22:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19200 states to 19200 states and 23540 transitions. [2021-11-07 02:22:21,913 INFO L78 Accepts]: Start accepts. Automaton has 19200 states and 23540 transitions. Word has length 52 [2021-11-07 02:22:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:22:21,913 INFO L470 AbstractCegarLoop]: Abstraction has 19200 states and 23540 transitions. [2021-11-07 02:22:21,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 02:22:21,913 INFO L276 IsEmpty]: Start isEmpty. Operand 19200 states and 23540 transitions. [2021-11-07 02:22:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:22:21,919 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:22:21,920 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:22:21,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:22:22,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:22:22,133 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:22:22,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:22:22,134 INFO L85 PathProgramCache]: Analyzing trace with hash 93476253, now seen corresponding path program 1 times [2021-11-07 02:22:22,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:22:22,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423309480] [2021-11-07 02:22:22,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:22:22,135 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:22:22,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:22:22,136 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:22:22,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13920dc1-f06f-4e64-90ce-9f32241d0812/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 02:22:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:22:23,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:22:23,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:22:23,331 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 02:22:23,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:22:23,491 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 02:22:23,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:22:23,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423309480] [2021-11-07 02:22:23,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423309480] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:22:23,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:22:23,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 02:22:23,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551863506] [2021-11-07 02:22:23,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:22:23,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:22:23,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:22:23,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:22:23,494 INFO L87 Difference]: Start difference. First operand 19200 states and 23540 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 02:22:30,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:22:30,766 INFO L93 Difference]: Finished difference Result 66300 states and 81326 transitions. [2021-11-07 02:22:30,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:22:30,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 53 [2021-11-07 02:22:30,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:22:30,859 INFO L225 Difference]: With dead ends: 66300 [2021-11-07 02:22:30,860 INFO L226 Difference]: Without dead ends: 66281 [2021-11-07 02:22:30,874 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:22:30,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66281 states.