./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 24935ae4ad51440e7b48772078e1e4d7eafeab4e ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 24935ae4ad51440e7b48772078e1e4d7eafeab4e ........................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:47:58,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:47:58,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:47:58,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:47:58,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:47:58,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:47:58,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:47:58,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:47:58,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:47:58,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:47:58,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:47:58,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:47:58,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:47:58,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:47:58,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:47:58,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:47:58,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:47:58,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:47:58,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:47:58,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:47:58,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:47:58,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:47:58,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:47:58,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:47:58,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:47:58,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:47:58,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:47:58,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:47:58,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:47:58,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:47:58,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:47:58,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:47:58,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:47:58,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:47:58,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:47:58,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:47:58,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:47:58,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:47:58,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:47:58,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:47:58,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:47:58,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf [2019-12-07 20:47:58,681 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:47:58,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:47:58,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:47:58,681 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:47:58,681 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:47:58,682 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:47:58,682 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:47:58,682 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:47:58,682 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:47:58,682 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:47:58,682 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:47:58,682 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:47:58,682 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:47:58,682 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:47:58,682 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:47:58,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:47:58,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:47:58,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:47:58,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:47:58,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:47:58,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:47:58,684 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:47:58,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:47:58,684 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:47:58,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:47:58,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:47:58,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:47:58,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:47:58,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:47:58,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:47:58,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:47:58,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:47:58,685 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:47:58,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:47:58,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:47:58,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:47:58,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:47:58,686 INFO L138 SettingsManager]: * To the following directory=dump/ [2019-12-07 20:47:58,686 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> 24935ae4ad51440e7b48772078e1e4d7eafeab4e [2019-12-07 20:47:58,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:47:58,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:47:58,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:47:58,796 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:47:58,797 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:47:58,797 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2019-12-07 20:47:58,836 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/data/07deeccc4/6591f10c93e04e4aa80826a19238e15d/FLAG18bd6ab6d [2019-12-07 20:47:59,339 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:47:59,339 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2019-12-07 20:47:59,362 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/data/07deeccc4/6591f10c93e04e4aa80826a19238e15d/FLAG18bd6ab6d [2019-12-07 20:47:59,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/data/07deeccc4/6591f10c93e04e4aa80826a19238e15d [2019-12-07 20:47:59,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:47:59,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:47:59,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:47:59,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:47:59,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:47:59,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:47:59" (1/1) ... [2019-12-07 20:47:59,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a368b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:47:59, skipping insertion in model container [2019-12-07 20:47:59,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:47:59" (1/1) ... [2019-12-07 20:47:59,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:47:59,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:48:00,444 WARN L540 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2019-12-07 20:48:00,447 WARN L540 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2019-12-07 20:48:00,463 WARN L540 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2019-12-07 20:48:00,474 WARN L540 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2019-12-07 20:48:00,475 WARN L540 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2019-12-07 20:48:00,480 WARN L540 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2019-12-07 20:48:00,482 WARN L540 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2019-12-07 20:48:00,523 WARN L540 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2019-12-07 20:48:00,523 WARN L540 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2019-12-07 20:48:00,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:48:00,645 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) [2019-12-07 20:48:00,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@278221dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:00, skipping insertion in model container [2019-12-07 20:48:00,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:48:00,646 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:48:00,647 INFO L168 Benchmark]: Toolchain (without parser) took 778.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 932.5 MB in the beginning and 1.0 GB in the end (delta: -101.6 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:48:00,648 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:48:00,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 932.5 MB in the beginning and 1.0 GB in the end (delta: -101.6 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:48:00,649 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 776.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 932.5 MB in the beginning and 1.0 GB in the end (delta: -101.6 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3826]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 20:48:01,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:48:01,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:48:01,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:48:01,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:48:01,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:48:01,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:48:01,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:48:01,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:48:01,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:48:01,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:48:01,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:48:01,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:48:01,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:48:01,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:48:01,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:48:01,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:48:01,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:48:01,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:48:01,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:48:01,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:48:01,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:48:01,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:48:01,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:48:01,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:48:01,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:48:01,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:48:01,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:48:01,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:48:01,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:48:01,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:48:01,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:48:01,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:48:01,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:48:01,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:48:01,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:48:01,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:48:01,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:48:01,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:48:01,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:48:01,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:48:01,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2019-12-07 20:48:01,804 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:48:01,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:48:01,804 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:48:01,804 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:48:01,805 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:48:01,805 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:48:01,805 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:48:01,805 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:48:01,805 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:48:01,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:48:01,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:48:01,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:48:01,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:48:01,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:48:01,806 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:48:01,806 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:48:01,806 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:48:01,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:48:01,807 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:48:01,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:48:01,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:48:01,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:48:01,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:48:01,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:48:01,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:48:01,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:48:01,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:48:01,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:48:01,808 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:48:01,808 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:48:01,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:48:01,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:48:01,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:48:01,809 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> 24935ae4ad51440e7b48772078e1e4d7eafeab4e [2019-12-07 20:48:01,977 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:48:01,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:48:01,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:48:01,989 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:48:01,989 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:48:01,990 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2019-12-07 20:48:02,033 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/data/cd5c9d589/291845287f5d43d689df7f072aad1bf8/FLAGddc7acebc [2019-12-07 20:48:02,506 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:48:02,507 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2019-12-07 20:48:02,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/data/cd5c9d589/291845287f5d43d689df7f072aad1bf8/FLAGddc7acebc [2019-12-07 20:48:03,011 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/data/cd5c9d589/291845287f5d43d689df7f072aad1bf8 [2019-12-07 20:48:03,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:48:03,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:48:03,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:48:03,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:48:03,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:48:03,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:48:03" (1/1) ... [2019-12-07 20:48:03,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9aca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:03, skipping insertion in model container [2019-12-07 20:48:03,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:48:03" (1/1) ... [2019-12-07 20:48:03,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:48:03,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:48:03,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:48:03,862 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:48:03,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:48:04,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:48:04,163 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:48:04,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:48:04,554 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:48:04,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04 WrapperNode [2019-12-07 20:48:04,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:48:04,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:48:04,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:48:04,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:48:04,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04" (1/1) ... [2019-12-07 20:48:04,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04" (1/1) ... [2019-12-07 20:48:04,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:48:04,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:48:04,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:48:04,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:48:04,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04" (1/1) ... [2019-12-07 20:48:04,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04" (1/1) ... [2019-12-07 20:48:04,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04" (1/1) ... [2019-12-07 20:48:04,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04" (1/1) ... [2019-12-07 20:48:04,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04" (1/1) ... [2019-12-07 20:48:04,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04" (1/1) ... [2019-12-07 20:48:04,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04" (1/1) ... [2019-12-07 20:48:05,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:48:05,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:48:05,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:48:05,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:48:05,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:48:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-12-07 20:48:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-12-07 20:48:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 20:48:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-12-07 20:48:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 20:48:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 20:48:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:48:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 20:48:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2019-12-07 20:48:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-12-07 20:48:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-12-07 20:48:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:48:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 20:48:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 20:48:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2019-12-07 20:48:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:48:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-12-07 20:48:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2019-12-07 20:48:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:48:05,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:49:56,049 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:49:56,049 INFO L287 CfgBuilder]: Removed 1277 assume(true) statements. [2019-12-07 20:49:56,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:49:56 BoogieIcfgContainer [2019-12-07 20:49:56,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:49:56,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:49:56,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:49:56,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:49:56,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:48:03" (1/3) ... [2019-12-07 20:49:56,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c9479e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:49:56, skipping insertion in model container [2019-12-07 20:49:56,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:04" (2/3) ... [2019-12-07 20:49:56,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c9479e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:49:56, skipping insertion in model container [2019-12-07 20:49:56,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:49:56" (3/3) ... [2019-12-07 20:49:56,056 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2019-12-07 20:49:56,062 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:49:56,068 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-12-07 20:49:56,075 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-12-07 20:49:56,101 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:49:56,101 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:49:56,101 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:49:56,101 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:49:56,101 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:49:56,101 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:49:56,101 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:49:56,101 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:49:56,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states. [2019-12-07 20:49:56,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 20:49:56,131 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:49:56,132 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:49:56,132 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:49:56,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:49:56,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1482443723, now seen corresponding path program 1 times [2019-12-07 20:49:56,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:49:56,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382348179] [2019-12-07 20:49:56,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 20:50:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:50:42,576 INFO L264 TraceCheckSpWp]: Trace formula consists of 14319 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:50:42,587 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:50:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:50:42,609 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:50:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:50:42,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382348179] [2019-12-07 20:50:42,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:50:42,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:50:42,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383619205] [2019-12-07 20:50:42,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:50:42,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:50:42,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:50:42,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:50:42,632 INFO L87 Difference]: Start difference. First operand 1384 states. Second operand 3 states. [2019-12-07 20:51:03,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:51:03,100 INFO L93 Difference]: Finished difference Result 4020 states and 5622 transitions. [2019-12-07 20:51:03,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:51:03,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-12-07 20:51:03,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:51:03,127 INFO L225 Difference]: With dead ends: 4020 [2019-12-07 20:51:03,127 INFO L226 Difference]: Without dead ends: 2624 [2019-12-07 20:51:03,134 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:51:03,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2019-12-07 20:51:03,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2608. [2019-12-07 20:51:03,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2608 states. [2019-12-07 20:51:03,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2608 states to 2608 states and 3633 transitions. [2019-12-07 20:51:03,244 INFO L78 Accepts]: Start accepts. Automaton has 2608 states and 3633 transitions. Word has length 13 [2019-12-07 20:51:03,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:51:03,244 INFO L462 AbstractCegarLoop]: Abstraction has 2608 states and 3633 transitions. [2019-12-07 20:51:03,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:51:03,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2608 states and 3633 transitions. [2019-12-07 20:51:03,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 20:51:03,245 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:51:03,245 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:51:03,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:51:03,447 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:51:03,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:51:03,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1298501650, now seen corresponding path program 1 times [2019-12-07 20:51:03,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:51:03,471 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701259384] [2019-12-07 20:51:03,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d07e0c55-5ffc-41ca-9f21-d1e32c2bd573/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 20:51:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:51:49,887 INFO L264 TraceCheckSpWp]: Trace formula consists of 14310 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:51:49,894 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:51:49,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:51:49,902 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:51:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:51:49,913 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701259384] [2019-12-07 20:51:49,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:51:49,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:51:49,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076397883] [2019-12-07 20:51:49,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:51:49,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:51:49,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:51:49,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:51:49,916 INFO L87 Difference]: Start difference. First operand 2608 states and 3633 transitions. Second operand 4 states. [2019-12-07 20:52:03,465 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-12-07 20:52:03,667 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:52:03,668 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:100) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:130) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:660) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:264) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:279) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:161) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:714) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:627) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:454) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 31 more [2019-12-07 20:52:03,674 INFO L168 Benchmark]: Toolchain (without parser) took 240659.03 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.7 GB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -142.2 MB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2019-12-07 20:52:03,675 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:52:03,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1539.89 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 278.9 MB). Free memory was 941.6 MB in the beginning and 1.2 GB in the end (delta: -287.3 MB). Peak memory consumption was 311.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:52:03,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 239.28 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:52:03,678 INFO L168 Benchmark]: Boogie Preprocessor took 224.18 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:52:03,678 INFO L168 Benchmark]: RCFGBuilder took 111032.16 ms. Allocated memory was 1.3 GB in the beginning and 2.8 GB in the end (delta: 1.5 GB). Free memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: -583.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 11.5 GB. [2019-12-07 20:52:03,679 INFO L168 Benchmark]: TraceAbstraction took 127620.22 ms. Allocated memory was 2.8 GB in the beginning and 2.7 GB in the end (delta: -44.6 MB). Free memory was 1.7 GB in the beginning and 1.1 GB in the end (delta: 592.1 MB). Peak memory consumption was 547.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:52:03,682 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1539.89 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 278.9 MB). Free memory was 941.6 MB in the beginning and 1.2 GB in the end (delta: -287.3 MB). Peak memory consumption was 311.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 239.28 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 224.18 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 111032.16 ms. Allocated memory was 1.3 GB in the beginning and 2.8 GB in the end (delta: 1.5 GB). Free memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: -583.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 11.5 GB. * TraceAbstraction took 127620.22 ms. Allocated memory was 2.8 GB in the beginning and 2.7 GB in the end (delta: -44.6 MB). Free memory was 1.7 GB in the beginning and 1.1 GB in the end (delta: 592.1 MB). Peak memory consumption was 547.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...