./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan --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 609efdf4f988170ff745a87fec8ed7ede6211079 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan --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 609efdf4f988170ff745a87fec8ed7ede6211079 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:55:43,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:55:43,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:55:43,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:55:43,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:55:43,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:55:43,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:55:43,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:55:43,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:55:43,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:55:43,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:55:43,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:55:43,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:55:43,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:55:43,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:55:43,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:55:43,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:55:43,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:55:43,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:55:43,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:55:43,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:55:43,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:55:43,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:55:43,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:55:43,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:55:43,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:55:43,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:55:43,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:55:43,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:55:43,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:55:43,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:55:43,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:55:43,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:55:43,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:55:43,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:55:43,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:55:43,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:55:43,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:55:43,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:55:43,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:55:43,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:55:43,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:55:43,739 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:55:43,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:55:43,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:55:43,741 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:55:43,741 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:55:43,742 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:55:43,742 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:55:43,742 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:55:43,743 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:55:43,743 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:55:43,744 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:55:43,744 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:55:43,745 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:55:43,745 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:55:43,745 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:55:43,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:55:43,747 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:55:43,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:55:43,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:55:43,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:55:43,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:55:43,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:55:43,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:55:43,748 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:55:43,749 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:55:43,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:55:43,749 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:55:43,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:55:43,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:55:43,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:55:43,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:55:43,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:55:43,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:55:43,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:55:43,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:55:43,754 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:55:43,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:55:43,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:55:43,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:55:43,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:55:43,755 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-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 609efdf4f988170ff745a87fec8ed7ede6211079 [2020-11-22 12:55:44,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:55:44,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:55:44,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:55:44,193 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:55:44,194 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:55:44,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-22 12:55:44,287 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/data/e939519d6/061f09be42a74628b6c6f5389004a9f4/FLAGc49facbbf [2020-11-22 12:55:44,940 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:55:44,941 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-22 12:55:44,955 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/data/e939519d6/061f09be42a74628b6c6f5389004a9f4/FLAGc49facbbf [2020-11-22 12:55:45,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/data/e939519d6/061f09be42a74628b6c6f5389004a9f4 [2020-11-22 12:55:45,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:55:45,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:55:45,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:55:45,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:55:45,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:55:45,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:55:45" (1/1) ... [2020-11-22 12:55:45,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce1e9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:45, skipping insertion in model container [2020-11-22 12:55:45,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:55:45" (1/1) ... [2020-11-22 12:55:45,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:55:45,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:55:45,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:55:45,837 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) [2020-11-22 12:55:45,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3d760ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:45, skipping insertion in model container [2020-11-22 12:55:45,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:55:45,838 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:55:45,841 INFO L168 Benchmark]: Toolchain (without parser) took 594.53 ms. Allocated memory is still 88.1 MB. Free memory was 58.2 MB in the beginning and 61.7 MB in the end (delta: -3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:55:45,842 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 5.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:55:45,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.33 ms. Allocated memory is still 88.1 MB. Free memory was 58.0 MB in the beginning and 61.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:55:45,846 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 88.1 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 5.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 588.33 ms. Allocated memory is still 88.1 MB. Free memory was 58.0 MB in the beginning and 61.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 498]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:55:48,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:55:48,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:55:48,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:55:48,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:55:48,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:55:48,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:55:48,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:55:48,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:55:48,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:55:48,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:55:48,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:55:48,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:55:48,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:55:48,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:55:48,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:55:48,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:55:48,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:55:48,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:55:48,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:55:48,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:55:48,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:55:48,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:55:48,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:55:48,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:55:48,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:55:48,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:55:48,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:55:48,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:55:48,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:55:48,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:55:48,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:55:48,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:55:48,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:55:48,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:55:48,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:55:48,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:55:48,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:55:48,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:55:48,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:55:48,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:55:48,796 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:55:48,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:55:48,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:55:48,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:55:48,830 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:55:48,830 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:55:48,831 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:55:48,831 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:55:48,831 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:55:48,832 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:55:48,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:55:48,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:55:48,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:55:48,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:55:48,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:55:48,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:55:48,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:55:48,835 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:55:48,835 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:55:48,835 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:55:48,836 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:55:48,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:55:48,836 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:55:48,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:55:48,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:55:48,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:55:48,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:55:48,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:55:48,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:55:48,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:55:48,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:55:48,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:55:48,839 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:55:48,839 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:55:48,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:55:48,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:55:48,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:55:48,841 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-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 609efdf4f988170ff745a87fec8ed7ede6211079 [2020-11-22 12:55:49,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:55:49,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:55:49,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:55:49,334 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:55:49,343 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:55:49,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-22 12:55:49,438 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/data/24acec0d9/702c0a49c7e445119f73a57a2d8acc03/FLAGf5dab85cb [2020-11-22 12:55:50,154 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:55:50,155 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-22 12:55:50,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/data/24acec0d9/702c0a49c7e445119f73a57a2d8acc03/FLAGf5dab85cb [2020-11-22 12:55:50,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/data/24acec0d9/702c0a49c7e445119f73a57a2d8acc03 [2020-11-22 12:55:50,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:55:50,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:55:50,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:55:50,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:55:50,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:55:50,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:55:50" (1/1) ... [2020-11-22 12:55:50,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c175d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:50, skipping insertion in model container [2020-11-22 12:55:50,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:55:50" (1/1) ... [2020-11-22 12:55:50,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:55:50,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:55:50,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:55:50,889 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:55:50,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:55:51,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:55:51,115 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:55:51,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:55:51,323 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:55:51,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51 WrapperNode [2020-11-22 12:55:51,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:55:51,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:55:51,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:55:51,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:55:51,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51" (1/1) ... [2020-11-22 12:55:51,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51" (1/1) ... [2020-11-22 12:55:51,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:55:51,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:55:51,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:55:51,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:55:51,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51" (1/1) ... [2020-11-22 12:55:51,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51" (1/1) ... [2020-11-22 12:55:51,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51" (1/1) ... [2020-11-22 12:55:51,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51" (1/1) ... [2020-11-22 12:55:51,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51" (1/1) ... [2020-11-22 12:55:51,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51" (1/1) ... [2020-11-22 12:55:51,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51" (1/1) ... [2020-11-22 12:55:51,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:55:51,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:55:51,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:55:51,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:55:51,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:55:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:55:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:55:51,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:55:51,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:55:54,664 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:55:54,664 INFO L298 CfgBuilder]: Removed 174 assume(true) statements. [2020-11-22 12:55:54,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:55:54 BoogieIcfgContainer [2020-11-22 12:55:54,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:55:54,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:55:54,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:55:54,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:55:54,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:55:50" (1/3) ... [2020-11-22 12:55:54,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef4bceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:55:54, skipping insertion in model container [2020-11-22 12:55:54,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:51" (2/3) ... [2020-11-22 12:55:54,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef4bceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:55:54, skipping insertion in model container [2020-11-22 12:55:54,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:55:54" (3/3) ... [2020-11-22 12:55:54,677 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-11-22 12:55:54,692 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:55:54,696 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:55:54,707 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:55:54,745 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:55:54,745 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:55:54,745 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:55:54,745 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:55:54,745 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:55:54,745 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:55:54,746 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:55:54,746 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:55:54,765 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-11-22 12:55:54,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 12:55:54,773 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:55:54,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:55:54,774 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:55:54,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:55:54,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1818462071, now seen corresponding path program 1 times [2020-11-22 12:55:54,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:55:54,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333322975] [2020-11-22 12:55:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 12:55:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:55:55,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:55:55,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:55:55,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:55,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:55:55,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:55,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333322975] [2020-11-22 12:55:55,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:55:55,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:55:55,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846140881] [2020-11-22 12:55:55,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:55:55,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:55:55,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:55:55,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:55:55,092 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-11-22 12:55:55,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:55:55,144 INFO L93 Difference]: Finished difference Result 223 states and 332 transitions. [2020-11-22 12:55:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:55:55,148 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 12:55:55,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:55:55,162 INFO L225 Difference]: With dead ends: 223 [2020-11-22 12:55:55,162 INFO L226 Difference]: Without dead ends: 109 [2020-11-22 12:55:55,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:55:55,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-22 12:55:55,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-22 12:55:55,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-22 12:55:55,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-11-22 12:55:55,228 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-11-22 12:55:55,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:55:55,228 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-11-22 12:55:55,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:55:55,229 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-11-22 12:55:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 12:55:55,232 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:55:55,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:55:55,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:55:55,441 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:55:55,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:55:55,442 INFO L82 PathProgramCache]: Analyzing trace with hash 907431318, now seen corresponding path program 1 times [2020-11-22 12:55:55,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:55:55,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495628410] [2020-11-22 12:55:55,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 12:55:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:55:55,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:55:55,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:55:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:55,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:55:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:55,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495628410] [2020-11-22 12:55:55,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:55:55,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:55:55,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608791913] [2020-11-22 12:55:55,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:55:55,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:55:55,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:55:55,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:55:55,698 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 4 states. [2020-11-22 12:55:55,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:55:55,716 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-11-22 12:55:55,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:55:55,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 12:55:55,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:55:55,722 INFO L225 Difference]: With dead ends: 109 [2020-11-22 12:55:55,722 INFO L226 Difference]: Without dead ends: 47 [2020-11-22 12:55:55,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:55:55,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-22 12:55:55,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-22 12:55:55,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 12:55:55,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-22 12:55:55,729 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-11-22 12:55:55,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:55:55,729 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-22 12:55:55,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:55:55,729 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-22 12:55:55,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 12:55:55,730 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:55:55,730 INFO L422 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] [2020-11-22 12:55:55,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:55:55,931 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:55:55,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:55:55,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1805721692, now seen corresponding path program 1 times [2020-11-22 12:55:55,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:55:55,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354825051] [2020-11-22 12:55:55,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 12:55:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:55:56,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:55:56,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:55:56,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:56,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:55:56,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:56,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354825051] [2020-11-22 12:55:56,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:55:56,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:55:56,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219069548] [2020-11-22 12:55:56,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:55:56,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:55:56,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:55:56,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:55:56,172 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 4 states. [2020-11-22 12:55:56,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:55:56,243 INFO L93 Difference]: Finished difference Result 154 states and 226 transitions. [2020-11-22 12:55:56,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:55:56,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 12:55:56,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:55:56,246 INFO L225 Difference]: With dead ends: 154 [2020-11-22 12:55:56,246 INFO L226 Difference]: Without dead ends: 113 [2020-11-22 12:55:56,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:55:56,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-22 12:55:56,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 68. [2020-11-22 12:55:56,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-22 12:55:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2020-11-22 12:55:56,264 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2020-11-22 12:55:56,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:55:56,265 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2020-11-22 12:55:56,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:55:56,265 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2020-11-22 12:55:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 12:55:56,267 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:55:56,267 INFO L422 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] [2020-11-22 12:55:56,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:55:56,489 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:55:56,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:55:56,489 INFO L82 PathProgramCache]: Analyzing trace with hash -820987702, now seen corresponding path program 1 times [2020-11-22 12:55:56,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:55:56,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181874016] [2020-11-22 12:55:56,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 12:55:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:55:56,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:55:56,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:55:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:56,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:55:56,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:55:56,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181874016] [2020-11-22 12:55:56,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:55:56,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 12:55:56,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888976042] [2020-11-22 12:55:56,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:55:56,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:55:56,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:55:56,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:55:56,759 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 8 states. [2020-11-22 12:55:57,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:55:57,199 INFO L93 Difference]: Finished difference Result 762 states and 1164 transitions. [2020-11-22 12:55:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 12:55:57,200 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-11-22 12:55:57,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:55:57,205 INFO L225 Difference]: With dead ends: 762 [2020-11-22 12:55:57,205 INFO L226 Difference]: Without dead ends: 700 [2020-11-22 12:55:57,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 12:55:57,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-11-22 12:55:57,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 178. [2020-11-22 12:55:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-11-22 12:55:57,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 259 transitions. [2020-11-22 12:55:57,241 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 259 transitions. Word has length 26 [2020-11-22 12:55:57,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:55:57,241 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 259 transitions. [2020-11-22 12:55:57,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:55:57,241 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 259 transitions. [2020-11-22 12:55:57,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 12:55:57,243 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:55:57,243 INFO L422 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] [2020-11-22 12:55:57,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:55:57,460 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:55:57,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:55:57,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1430024248, now seen corresponding path program 1 times [2020-11-22 12:55:57,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:55:57,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652975457] [2020-11-22 12:55:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 12:55:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:55:58,722 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:00,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:00,218 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:56:00,218 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:56:00,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:56:00,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:56:00 BoogieIcfgContainer [2020-11-22 12:56:00,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:56:00,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:56:00,561 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:56:00,561 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:56:00,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:55:54" (3/4) ... [2020-11-22 12:56:00,564 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:56:00,682 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d189997b-e77d-4cc8-b931-cf54281cae03/bin/utaipan/witness.graphml [2020-11-22 12:56:00,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:56:00,686 INFO L168 Benchmark]: Toolchain (without parser) took 10238.12 ms. Allocated memory was 52.4 MB in the beginning and 86.0 MB in the end (delta: 33.6 MB). Free memory was 28.4 MB in the beginning and 47.1 MB in the end (delta: -18.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:00,686 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 52.4 MB. Free memory was 34.5 MB in the beginning and 34.5 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:00,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 875.78 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 28.2 MB in the beginning and 43.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:00,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.82 ms. Allocated memory is still 71.3 MB. Free memory was 43.6 MB in the beginning and 39.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:00,689 INFO L168 Benchmark]: Boogie Preprocessor took 115.01 ms. Allocated memory is still 71.3 MB. Free memory was 39.8 MB in the beginning and 37.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:00,690 INFO L168 Benchmark]: RCFGBuilder took 3071.51 ms. Allocated memory is still 71.3 MB. Free memory was 37.1 MB in the beginning and 30.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:00,693 INFO L168 Benchmark]: TraceAbstraction took 5890.42 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 29.8 MB in the beginning and 58.3 MB in the end (delta: -28.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:00,694 INFO L168 Benchmark]: Witness Printer took 121.20 ms. Allocated memory is still 86.0 MB. Free memory was 58.3 MB in the beginning and 47.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:00,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 52.4 MB. Free memory was 34.5 MB in the beginning and 34.5 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 875.78 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 28.2 MB in the beginning and 43.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 151.82 ms. Allocated memory is still 71.3 MB. Free memory was 43.6 MB in the beginning and 39.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.01 ms. Allocated memory is still 71.3 MB. Free memory was 39.8 MB in the beginning and 37.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3071.51 ms. Allocated memory is still 71.3 MB. Free memory was 37.1 MB in the beginning and 30.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5890.42 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 29.8 MB in the beginning and 58.3 MB in the end (delta: -28.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 121.20 ms. Allocated memory is still 86.0 MB. Free memory was 58.3 MB in the beginning and 47.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L371] int cleanupTimeShifts = 4; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L836] int waterLevel = 1; [L837] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L447] int retValue_acc ; [L448] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L951] int retValue_acc ; [L954] retValue_acc = 1 [L955] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L454] tmp = valid_product() [L456] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L268] int splverifierCounter ; [L269] int tmp ; [L270] int tmp___0 ; [L271] int tmp___1 ; [L272] int tmp___2 ; [L275] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L277] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L279] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L285] tmp = __VERIFIER_nondet_int() [L287] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L854] COND TRUE waterLevel < 2 [L855] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L295] tmp___0 = __VERIFIER_nondet_int() [L297] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] tmp___2 = __VERIFIER_nondet_int() [L307] COND TRUE \read(tmp___2) [L259] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L70] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] COND TRUE \read(systemActive) [L125] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) [L99] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L102] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L875] int retValue_acc ; [L878] retValue_acc = methaneLevelCritical [L879] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L344] tmp = isMethaneLevelCritical() [L346] COND FALSE !(\read(tmp)) [L907] int retValue_acc ; [L910] retValue_acc = waterLevel [L911] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L350] tmp___0 = getWaterLevel() [L352] COND TRUE tmp___0 == 2 [L177] int retValue_acc ; [L180] retValue_acc = pumpRunning [L181] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L354] tmp___1 = isPumpRunning() [L356] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product24.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 404 SDtfs, 1191 SDslu, 766 SDs, 0 SdLazy, 116 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 567 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 8750 SizeOfPredicates, 6 NumberOfNonLiveVariables, 793 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! Received shutdown request...