./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/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_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 90a76a2882b85be994db917b0e3084e326cc29272a09018948be7f2d57c03e00 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:46:46,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:46:46,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:46:46,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:46:46,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:46:46,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:46:46,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:46:46,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:46:46,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:46:46,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:46:46,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:46:46,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:46:46,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:46:46,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:46:46,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:46:46,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:46:46,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:46:46,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:46:46,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:46:46,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:46:46,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:46:46,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:46:46,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:46:46,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:46:46,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:46:46,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:46:46,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:46:46,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:46:46,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:46:46,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:46:46,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:46:46,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:46:46,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:46:46,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:46:46,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:46:46,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:46:46,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:46:46,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:46:46,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:46:46,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:46:46,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:46:46,467 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:46:46,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:46:46,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:46:46,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:46:46,517 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:46:46,517 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:46:46,517 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:46:46,518 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:46:46,518 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:46:46,518 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:46:46,518 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:46:46,519 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:46:46,520 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:46:46,520 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:46:46,520 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:46:46,520 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:46:46,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:46:46,521 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:46:46,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:46:46,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:46:46,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:46:46,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:46:46,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:46:46,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:46:46,523 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:46:46,523 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:46:46,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:46:46,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:46:46,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:46:46,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:46:46,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:46:46,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:46:46,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:46:46,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:46:46,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:46:46,527 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:46:46,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:46:46,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:46:46,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:46:46,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:46:46,528 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_ad9e827c-ba69-4608-844d-f4b3d980aa85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90a76a2882b85be994db917b0e3084e326cc29272a09018948be7f2d57c03e00 [2021-11-07 01:46:46,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:46:46,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:46:46,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:46:46,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:46:46,837 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:46:46,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2021-11-07 01:46:46,909 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/data/bf69ef131/8dfaabf87cac4b7690f45f0170b70a2c/FLAG9853b5248 [2021-11-07 01:46:47,483 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:46:47,483 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2021-11-07 01:46:47,498 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/data/bf69ef131/8dfaabf87cac4b7690f45f0170b70a2c/FLAG9853b5248 [2021-11-07 01:46:47,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/data/bf69ef131/8dfaabf87cac4b7690f45f0170b70a2c [2021-11-07 01:46:47,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:46:47,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:46:47,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:46:47,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:46:47,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:46:47,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:46:47" (1/1) ... [2021-11-07 01:46:47,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae59f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:47, skipping insertion in model container [2021-11-07 01:46:47,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:46:47" (1/1) ... [2021-11-07 01:46:47,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:46:47,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:46:48,128 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_ad9e827c-ba69-4608-844d-f4b3d980aa85/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c[3816,3829] [2021-11-07 01:46:48,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:46:48,245 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:46:48,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a46ddc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:48, skipping insertion in model container [2021-11-07 01:46:48,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:46:48,246 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:46:48,248 INFO L168 Benchmark]: Toolchain (without parser) took 429.01 ms. Allocated memory is still 109.1 MB. Free memory was 68.1 MB in the beginning and 80.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:46:48,249 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 109.1 MB. Free memory was 85.3 MB in the beginning and 85.2 MB in the end (delta: 69.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:46:48,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.27 ms. Allocated memory is still 109.1 MB. Free memory was 67.9 MB in the beginning and 80.1 MB in the end (delta: -12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:46:48,252 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 109.1 MB. Free memory was 85.3 MB in the beginning and 85.2 MB in the end (delta: 69.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 426.27 ms. Allocated memory is still 109.1 MB. Free memory was 67.9 MB in the beginning and 80.1 MB in the end (delta: -12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 560]: 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_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/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_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 90a76a2882b85be994db917b0e3084e326cc29272a09018948be7f2d57c03e00 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:46:50,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:46:50,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:46:50,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:46:50,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:46:50,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:46:50,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:46:50,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:46:50,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:46:50,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:46:50,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:46:50,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:46:50,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:46:50,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:46:50,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:46:50,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:46:50,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:46:50,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:46:50,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:46:50,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:46:50,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:46:50,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:46:50,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:46:50,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:46:50,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:46:50,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:46:50,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:46:50,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:46:50,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:46:50,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:46:50,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:46:50,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:46:50,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:46:50,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:46:50,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:46:50,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:46:50,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:46:50,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:46:50,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:46:50,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:46:50,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:46:50,822 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:46:50,879 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:46:50,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:46:50,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:46:50,882 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:46:50,883 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:46:50,883 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:46:50,883 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:46:50,883 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:46:50,885 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:46:50,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:46:50,888 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:46:50,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:46:50,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:46:50,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:46:50,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:46:50,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:46:50,890 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:46:50,890 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:46:50,890 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:46:50,891 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:46:50,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:46:50,891 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:46:50,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:46:50,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:46:50,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:46:50,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:46:50,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:46:50,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:46:50,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:46:50,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:46:50,894 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:46:50,894 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:46:50,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:46:50,895 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:46:50,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:46:50,896 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_ad9e827c-ba69-4608-844d-f4b3d980aa85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90a76a2882b85be994db917b0e3084e326cc29272a09018948be7f2d57c03e00 [2021-11-07 01:46:51,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:46:51,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:46:51,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:46:51,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:46:51,331 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:46:51,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2021-11-07 01:46:51,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/data/e9e1e52dc/4b2a014bcd364a79ba308aae9ed037c9/FLAGc0d84a8a6 [2021-11-07 01:46:52,053 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:46:52,054 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2021-11-07 01:46:52,079 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/data/e9e1e52dc/4b2a014bcd364a79ba308aae9ed037c9/FLAGc0d84a8a6 [2021-11-07 01:46:52,419 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/data/e9e1e52dc/4b2a014bcd364a79ba308aae9ed037c9 [2021-11-07 01:46:52,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:46:52,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:46:52,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:46:52,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:46:52,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:46:52,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:46:52" (1/1) ... [2021-11-07 01:46:52,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47de5aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:52, skipping insertion in model container [2021-11-07 01:46:52,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:46:52" (1/1) ... [2021-11-07 01:46:52,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:46:52,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:46:52,741 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_ad9e827c-ba69-4608-844d-f4b3d980aa85/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c[3816,3829] [2021-11-07 01:46:52,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:46:52,943 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:46:52,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:46:52,984 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_ad9e827c-ba69-4608-844d-f4b3d980aa85/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c[3816,3829] [2021-11-07 01:46:53,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:46:53,089 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:46:53,123 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_ad9e827c-ba69-4608-844d-f4b3d980aa85/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c[3816,3829] [2021-11-07 01:46:53,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:46:53,217 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:46:53,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53 WrapperNode [2021-11-07 01:46:53,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:46:53,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:46:53,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:46:53,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:46:53,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53" (1/1) ... [2021-11-07 01:46:53,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53" (1/1) ... [2021-11-07 01:46:53,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:46:53,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:46:53,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:46:53,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:46:53,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53" (1/1) ... [2021-11-07 01:46:53,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53" (1/1) ... [2021-11-07 01:46:53,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53" (1/1) ... [2021-11-07 01:46:53,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53" (1/1) ... [2021-11-07 01:46:53,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53" (1/1) ... [2021-11-07 01:46:53,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53" (1/1) ... [2021-11-07 01:46:53,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53" (1/1) ... [2021-11-07 01:46:53,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:46:53,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:46:53,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:46:53,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:46:53,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53" (1/1) ... [2021-11-07 01:46:53,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:46:53,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:46:53,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:46:53,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:46:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:46:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:46:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:46:53,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:46:56,246 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:46:56,261 INFO L299 CfgBuilder]: Removed 278 assume(true) statements. [2021-11-07 01:46:56,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:46:56 BoogieIcfgContainer [2021-11-07 01:46:56,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:46:56,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:46:56,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:46:56,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:46:56,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:46:52" (1/3) ... [2021-11-07 01:46:56,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be14da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:46:56, skipping insertion in model container [2021-11-07 01:46:56,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:53" (2/3) ... [2021-11-07 01:46:56,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be14da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:46:56, skipping insertion in model container [2021-11-07 01:46:56,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:46:56" (3/3) ... [2021-11-07 01:46:56,293 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product54.cil.c [2021-11-07 01:46:56,299 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:46:56,311 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 01:46:56,411 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:46:56,424 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:46:56,424 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 01:46:56,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 185 states have (on average 1.5567567567567568) internal successors, (288), 188 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:56,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:46:56,478 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:56,479 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:56,480 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:46:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:56,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1439730149, now seen corresponding path program 1 times [2021-11-07 01:46:56,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:56,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313092791] [2021-11-07 01:46:56,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:56,512 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:56,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:56,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:56,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:46:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:56,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:46:56,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:56,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:56,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:56,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:56,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:56,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313092791] [2021-11-07 01:46:56,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313092791] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:56,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:56,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:46:56,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10565846] [2021-11-07 01:46:56,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:46:56,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:56,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:46:56,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:46:56,979 INFO L87 Difference]: Start difference. First operand has 189 states, 185 states have (on average 1.5567567567567568) internal successors, (288), 188 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:57,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:57,043 INFO L93 Difference]: Finished difference Result 372 states and 569 transitions. [2021-11-07 01:46:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:46:57,045 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-07 01:46:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:57,062 INFO L225 Difference]: With dead ends: 372 [2021-11-07 01:46:57,062 INFO L226 Difference]: Without dead ends: 185 [2021-11-07 01:46:57,067 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:46:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-07 01:46:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2021-11-07 01:46:57,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 184 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2021-11-07 01:46:57,150 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 276 transitions. Word has length 16 [2021-11-07 01:46:57,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:57,151 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 276 transitions. [2021-11-07 01:46:57,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:57,152 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 276 transitions. [2021-11-07 01:46:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:46:57,155 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:57,155 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 01:46:57,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:57,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:57,376 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:46:57,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:57,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1808480250, now seen corresponding path program 1 times [2021-11-07 01:46:57,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:57,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581494937] [2021-11-07 01:46:57,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:57,378 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:57,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:57,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:57,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:46:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:57,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:46:57,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:57,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:57,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:57,736 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:57,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581494937] [2021-11-07 01:46:57,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581494937] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:57,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:57,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:46:57,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592025679] [2021-11-07 01:46:57,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:46:57,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:57,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:46:57,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:46:57,745 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:57,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:57,777 INFO L93 Difference]: Finished difference Result 185 states and 276 transitions. [2021-11-07 01:46:57,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:46:57,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-07 01:46:57,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:57,781 INFO L225 Difference]: With dead ends: 185 [2021-11-07 01:46:57,781 INFO L226 Difference]: Without dead ends: 71 [2021-11-07 01:46:57,785 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:46:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-07 01:46:57,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-07 01:46:57,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.5) internal successors, (105), 70 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:57,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2021-11-07 01:46:57,801 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 17 [2021-11-07 01:46:57,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:57,802 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2021-11-07 01:46:57,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:57,802 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2021-11-07 01:46:57,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:46:57,804 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:57,807 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:57,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:58,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:58,029 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:46:58,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:58,029 INFO L85 PathProgramCache]: Analyzing trace with hash -886510538, now seen corresponding path program 1 times [2021-11-07 01:46:58,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:58,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022907806] [2021-11-07 01:46:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:58,031 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:58,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:58,032 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:58,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:46:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:58,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:46:58,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:58,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:58,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:58,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:58,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:58,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022907806] [2021-11-07 01:46:58,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022907806] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:58,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:58,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:46:58,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149924482] [2021-11-07 01:46:58,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:46:58,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:58,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:46:58,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:46:58,420 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:58,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:58,459 INFO L93 Difference]: Finished difference Result 136 states and 204 transitions. [2021-11-07 01:46:58,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:46:58,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-07 01:46:58,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:58,461 INFO L225 Difference]: With dead ends: 136 [2021-11-07 01:46:58,461 INFO L226 Difference]: Without dead ends: 71 [2021-11-07 01:46:58,462 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:46:58,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-07 01:46:58,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-07 01:46:58,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 70 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:58,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2021-11-07 01:46:58,470 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 22 [2021-11-07 01:46:58,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:58,471 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2021-11-07 01:46:58,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:58,472 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2021-11-07 01:46:58,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:46:58,475 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:58,475 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:58,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:58,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:58,683 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:46:58,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:58,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1823541737, now seen corresponding path program 1 times [2021-11-07 01:46:58,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:58,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654620421] [2021-11-07 01:46:58,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:58,685 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:58,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:58,686 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:58,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:46:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:58,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:46:58,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:58,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:58,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:59,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:59,016 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:59,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654620421] [2021-11-07 01:46:59,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654620421] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:59,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:59,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:46:59,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436017167] [2021-11-07 01:46:59,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:46:59,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:59,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:46:59,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:46:59,020 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:59,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:59,088 INFO L93 Difference]: Finished difference Result 145 states and 214 transitions. [2021-11-07 01:46:59,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:46:59,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-07 01:46:59,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:59,091 INFO L225 Difference]: With dead ends: 145 [2021-11-07 01:46:59,091 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 01:46:59,092 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:46:59,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 01:46:59,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2021-11-07 01:46:59,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 77 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:59,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2021-11-07 01:46:59,112 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 25 [2021-11-07 01:46:59,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:59,112 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2021-11-07 01:46:59,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:59,113 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2021-11-07 01:46:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:46:59,120 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:59,120 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:59,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:59,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:59,336 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:46:59,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:59,336 INFO L85 PathProgramCache]: Analyzing trace with hash -920121944, now seen corresponding path program 1 times [2021-11-07 01:46:59,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:59,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173353360] [2021-11-07 01:46:59,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:59,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:59,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:59,338 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:59,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:46:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:59,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:46:59,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:59,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:59,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:59,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:59,742 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:59,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173353360] [2021-11-07 01:46:59,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173353360] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:59,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:59,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:46:59,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624284871] [2021-11-07 01:46:59,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:46:59,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:59,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:46:59,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:46:59,745 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:59,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:59,832 INFO L93 Difference]: Finished difference Result 204 states and 285 transitions. [2021-11-07 01:46:59,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:46:59,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-07 01:46:59,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:59,834 INFO L225 Difference]: With dead ends: 204 [2021-11-07 01:46:59,834 INFO L226 Difference]: Without dead ends: 132 [2021-11-07 01:46:59,835 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:46:59,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-07 01:46:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 87. [2021-11-07 01:46:59,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.3837209302325582) internal successors, (119), 86 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:59,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2021-11-07 01:46:59,843 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 31 [2021-11-07 01:46:59,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:59,843 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2021-11-07 01:46:59,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:59,844 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2021-11-07 01:46:59,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:46:59,845 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:59,845 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:59,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:47:00,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:47:00,058 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:47:00,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:47:00,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1742389099, now seen corresponding path program 1 times [2021-11-07 01:47:00,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:47:00,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042282454] [2021-11-07 01:47:00,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:47:00,059 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:47:00,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:47:00,061 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:47:00,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:47:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:47:00,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:47:00,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:47:00,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:47:00,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:47:00,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:47:00,532 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:47:00,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042282454] [2021-11-07 01:47:00,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042282454] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:47:00,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:47:00,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:47:00,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204109152] [2021-11-07 01:47:00,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:47:00,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:47:00,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:47:00,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:47:00,538 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:00,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:47:00,658 INFO L93 Difference]: Finished difference Result 431 states and 600 transitions. [2021-11-07 01:47:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:47:00,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-07 01:47:00,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:47:00,662 INFO L225 Difference]: With dead ends: 431 [2021-11-07 01:47:00,662 INFO L226 Difference]: Without dead ends: 350 [2021-11-07 01:47:00,663 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:47:00,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-07 01:47:00,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 162. [2021-11-07 01:47:00,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.3726708074534162) internal successors, (221), 161 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:00,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 221 transitions. [2021-11-07 01:47:00,689 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 221 transitions. Word has length 31 [2021-11-07 01:47:00,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:47:00,690 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 221 transitions. [2021-11-07 01:47:00,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:00,690 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 221 transitions. [2021-11-07 01:47:00,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:47:00,695 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:47:00,695 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:47:00,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:47:00,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:47:00,908 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:47:00,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:47:00,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1092376181, now seen corresponding path program 1 times [2021-11-07 01:47:00,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:47:00,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935406824] [2021-11-07 01:47:00,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:47:00,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:47:00,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:47:00,912 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:47:00,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:47:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:47:01,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:47:01,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:47:01,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:47:01,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:47:01,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:47:01,413 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:47:01,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935406824] [2021-11-07 01:47:01,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935406824] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:47:01,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:47:01,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:47:01,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735099882] [2021-11-07 01:47:01,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:47:01,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:47:01,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:47:01,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:47:01,416 INFO L87 Difference]: Start difference. First operand 162 states and 221 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:01,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:47:01,632 INFO L93 Difference]: Finished difference Result 470 states and 642 transitions. [2021-11-07 01:47:01,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:47:01,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 01:47:01,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:47:01,636 INFO L225 Difference]: With dead ends: 470 [2021-11-07 01:47:01,636 INFO L226 Difference]: Without dead ends: 468 [2021-11-07 01:47:01,636 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:47:01,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2021-11-07 01:47:01,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 162. [2021-11-07 01:47:01,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.3664596273291925) internal successors, (220), 161 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:01,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 220 transitions. [2021-11-07 01:47:01,657 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 220 transitions. Word has length 32 [2021-11-07 01:47:01,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:47:01,657 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 220 transitions. [2021-11-07 01:47:01,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:01,658 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 220 transitions. [2021-11-07 01:47:01,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:47:01,658 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:47:01,659 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:47:01,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:47:01,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:47:01,871 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:47:01,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:47:01,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1963161872, now seen corresponding path program 1 times [2021-11-07 01:47:01,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:47:01,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339196649] [2021-11-07 01:47:01,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:47:01,873 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:47:01,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:47:01,874 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:47:01,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:47:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:47:02,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:47:02,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:47:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:47:02,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:47:02,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:47:02,292 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:47:02,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339196649] [2021-11-07 01:47:02,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339196649] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:47:02,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:47:02,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:47:02,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428392710] [2021-11-07 01:47:02,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:47:02,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:47:02,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:47:02,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:47:02,298 INFO L87 Difference]: Start difference. First operand 162 states and 220 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:02,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:47:02,388 INFO L93 Difference]: Finished difference Result 428 states and 574 transitions. [2021-11-07 01:47:02,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:47:02,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 01:47:02,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:47:02,413 INFO L225 Difference]: With dead ends: 428 [2021-11-07 01:47:02,413 INFO L226 Difference]: Without dead ends: 272 [2021-11-07 01:47:02,415 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:47:02,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-07 01:47:02,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 174. [2021-11-07 01:47:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.3410404624277457) internal successors, (232), 173 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:02,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 232 transitions. [2021-11-07 01:47:02,443 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 232 transitions. Word has length 32 [2021-11-07 01:47:02,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:47:02,443 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 232 transitions. [2021-11-07 01:47:02,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:02,444 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 232 transitions. [2021-11-07 01:47:02,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:47:02,444 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:47:02,444 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:47:02,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:47:02,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:47:02,657 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:47:02,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:47:02,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1704996434, now seen corresponding path program 1 times [2021-11-07 01:47:02,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:47:02,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879880222] [2021-11-07 01:47:02,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:47:02,658 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:47:02,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:47:02,659 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:47:02,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:47:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:47:02,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:47:02,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:47:03,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:47:03,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:47:03,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:47:03,139 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:47:03,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879880222] [2021-11-07 01:47:03,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879880222] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:47:03,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:47:03,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:47:03,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821897824] [2021-11-07 01:47:03,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:47:03,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:47:03,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:47:03,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:47:03,142 INFO L87 Difference]: Start difference. First operand 174 states and 232 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:03,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:47:03,230 INFO L93 Difference]: Finished difference Result 520 states and 696 transitions. [2021-11-07 01:47:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:47:03,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 01:47:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:47:03,234 INFO L225 Difference]: With dead ends: 520 [2021-11-07 01:47:03,235 INFO L226 Difference]: Without dead ends: 352 [2021-11-07 01:47:03,236 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:47:03,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-11-07 01:47:03,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 298. [2021-11-07 01:47:03,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 1.3232323232323233) internal successors, (393), 297 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:03,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 393 transitions. [2021-11-07 01:47:03,283 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 393 transitions. Word has length 32 [2021-11-07 01:47:03,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:47:03,284 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 393 transitions. [2021-11-07 01:47:03,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:47:03,284 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 393 transitions. [2021-11-07 01:47:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:47:03,285 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:47:03,286 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:47:03,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:47:03,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:47:03,499 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:47:03,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:47:03,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1518924332, now seen corresponding path program 1 times [2021-11-07 01:47:03,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:47:03,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226217014] [2021-11-07 01:47:03,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:47:03,501 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:47:03,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:47:03,502 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:47:03,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:47:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:47:04,598 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:47:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:47:06,011 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 01:47:06,011 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:47:06,012 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:47:06,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:47:06,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:47:06,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:47:06,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:47:06,236 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:47:06,240 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:47:06,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:47:06 BoogieIcfgContainer [2021-11-07 01:47:06,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:47:06,374 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:47:06,374 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:47:06,374 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:47:06,375 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:46:56" (3/4) ... [2021-11-07 01:47:06,381 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 01:47:06,485 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:47:06,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:47:06,486 INFO L168 Benchmark]: Toolchain (without parser) took 14062.59 ms. Allocated memory was 52.4 MB in the beginning and 113.2 MB in the end (delta: 60.8 MB). Free memory was 28.1 MB in the beginning and 87.2 MB in the end (delta: -59.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:47:06,487 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory was 33.2 MB in the beginning and 33.1 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:47:06,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.11 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 27.9 MB in the beginning and 45.1 MB in the end (delta: -17.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:47:06,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.38 ms. Allocated memory is still 65.0 MB. Free memory was 45.1 MB in the beginning and 40.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:47:06,488 INFO L168 Benchmark]: Boogie Preprocessor took 86.38 ms. Allocated memory is still 65.0 MB. Free memory was 40.4 MB in the beginning and 36.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:47:06,489 INFO L168 Benchmark]: RCFGBuilder took 2883.80 ms. Allocated memory was 65.0 MB in the beginning and 94.4 MB in the end (delta: 29.4 MB). Free memory was 36.6 MB in the beginning and 47.1 MB in the end (delta: -10.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:47:06,489 INFO L168 Benchmark]: TraceAbstraction took 10106.85 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 46.6 MB in the beginning and 47.7 MB in the end (delta: -1.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:47:06,490 INFO L168 Benchmark]: Witness Printer took 111.39 ms. Allocated memory is still 113.2 MB. Free memory was 47.7 MB in the beginning and 87.2 MB in the end (delta: -39.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:47:06,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory was 33.2 MB in the beginning and 33.1 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 784.11 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 27.9 MB in the beginning and 45.1 MB in the end (delta: -17.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.38 ms. Allocated memory is still 65.0 MB. Free memory was 45.1 MB in the beginning and 40.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.38 ms. Allocated memory is still 65.0 MB. Free memory was 40.4 MB in the beginning and 36.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2883.80 ms. Allocated memory was 65.0 MB in the beginning and 94.4 MB in the end (delta: 29.4 MB). Free memory was 36.6 MB in the beginning and 47.1 MB in the end (delta: -10.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10106.85 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 46.6 MB in the beginning and 47.7 MB in the end (delta: -1.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * Witness Printer took 111.39 ms. Allocated memory is still 113.2 MB. Free memory was 47.7 MB in the beginning and 87.2 MB in the end (delta: -39.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 226]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L239] int pumpRunning = 0; [L240] int systemActive = 1; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L899] int waterLevel = 1; [L900] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L500] retValue_acc = 1 [L501] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L156] int splverifierCounter ; [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L160] int tmp___2 ; [L163] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L173] tmp = __VERIFIER_nondet_int() [L175] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L917] COND TRUE waterLevel < 2 [L918] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L183] tmp___0 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L929] COND FALSE !(\read(methaneLevelCritical)) [L932] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L193] tmp___2 = __VERIFIER_nondet_int() [L195] COND TRUE \read(tmp___2) [L466] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L247] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L254] COND TRUE \read(systemActive) [L328] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L331] COND FALSE !(\read(pumpRunning)) [L302] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L305] COND FALSE !(\read(pumpRunning)) [L276] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L279] COND TRUE ! pumpRunning [L425] int retValue_acc ; [L426] int tmp ; [L427] int tmp___0 ; [L979] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L982] COND FALSE !(waterLevel < 2) [L986] retValue_acc = 0 [L987] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L431] tmp = isHighWaterSensorDry() [L433] COND FALSE !(\read(tmp)) [L436] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L438] retValue_acc = tmp___0 [L439] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L281] tmp = isHighWaterLevel() [L283] COND TRUE \read(tmp) [L356] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L507] int tmp ; [L508] int tmp___0 ; [L938] int retValue_acc ; [L941] retValue_acc = methaneLevelCritical [L942] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L512] tmp = isMethaneLevelCritical() [L514] COND TRUE \read(tmp) [L380] int retValue_acc ; [L383] retValue_acc = pumpRunning [L384] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L516] tmp___0 = isPumpRunning() [L518] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L226] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 226]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 226]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 189 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1163 SDtfs, 1240 SDslu, 1502 SDs, 0 SdLazy, 225 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 474 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 693 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 458 ConstructedInterpolants, 0 QuantifiedInterpolants, 762 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1837 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-07 01:47:06,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad9e827c-ba69-4608-844d-f4b3d980aa85/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE