./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c300c29b8d9fc061a97d8a30a731a0ec640f0644 ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c300c29b8d9fc061a97d8a30a731a0ec640f0644 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 20:31:45,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:31:45,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:31:45,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:31:45,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:31:45,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:31:45,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:31:45,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:31:45,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:31:45,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:31:45,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:31:45,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:31:45,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:31:45,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:31:45,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:31:45,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:31:45,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:31:45,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:31:45,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:31:45,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:31:45,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:31:45,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:31:45,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:31:45,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:31:45,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:31:45,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:31:45,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:31:45,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:31:45,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:31:45,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:31:45,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:31:45,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:31:45,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:31:45,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:31:45,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:31:45,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:31:45,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:31:45,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:31:45,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:31:45,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:31:45,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:31:45,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:31:45,624 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:31:45,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:31:45,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:31:45,625 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:31:45,625 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:31:45,626 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:31:45,626 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:31:45,626 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:31:45,626 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:31:45,626 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:31:45,626 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:31:45,626 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:31:45,627 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:31:45,627 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:31:45,627 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:31:45,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:31:45,628 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:31:45,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:31:45,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:31:45,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:31:45,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:31:45,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:31:45,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:31:45,628 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:31:45,629 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:31:45,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:31:45,629 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:31:45,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:31:45,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:31:45,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:31:45,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:31:45,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:31:45,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:31:45,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:31:45,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:31:45,630 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:31:45,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:31:45,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:31:45,630 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:31:45,630 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:31:45,630 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c300c29b8d9fc061a97d8a30a731a0ec640f0644 [2019-12-07 20:31:45,737 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:31:45,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:31:45,747 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:31:45,748 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:31:45,748 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:31:45,749 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2019-12-07 20:31:45,784 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/data/04d084a5a/00968ddbcd5b40bea1942355c4e82793/FLAGcd9b023ad [2019-12-07 20:31:46,125 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:31:46,126 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2019-12-07 20:31:46,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/data/04d084a5a/00968ddbcd5b40bea1942355c4e82793/FLAGcd9b023ad [2019-12-07 20:31:46,142 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/data/04d084a5a/00968ddbcd5b40bea1942355c4e82793 [2019-12-07 20:31:46,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:31:46,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:31:46,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:31:46,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:31:46,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:31:46,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:31:46" (1/1) ... [2019-12-07 20:31:46,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:46, skipping insertion in model container [2019-12-07 20:31:46,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:31:46" (1/1) ... [2019-12-07 20:31:46,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:31:46,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:31:46,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:31:46,394 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 20:31:46,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@371676e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:46, skipping insertion in model container [2019-12-07 20:31:46,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:31:46,395 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:31:46,397 INFO L168 Benchmark]: Toolchain (without parser) took 251.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.0 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -134.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:46,397 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:31:46,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.0 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -139.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:46,399 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.0 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -139.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 68]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 20:31:47,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:31:47,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:31:47,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:31:47,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:31:47,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:31:47,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:31:47,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:31:47,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:31:47,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:31:47,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:31:47,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:31:47,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:31:47,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:31:47,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:31:47,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:31:47,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:31:47,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:31:47,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:31:47,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:31:47,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:31:47,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:31:47,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:31:47,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:31:47,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:31:47,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:31:47,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:31:47,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:31:47,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:31:47,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:31:47,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:31:47,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:31:47,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:31:47,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:31:47,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:31:47,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:31:47,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:31:47,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:31:47,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:31:47,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:31:47,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:31:47,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:31:47,587 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:31:47,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:31:47,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:31:47,588 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:31:47,589 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:31:47,589 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:31:47,589 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:31:47,589 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:31:47,589 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:31:47,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:31:47,590 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:31:47,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:31:47,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:31:47,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:31:47,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:31:47,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:31:47,591 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:31:47,591 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:31:47,592 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:31:47,592 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:31:47,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:31:47,592 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:31:47,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:31:47,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:31:47,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:31:47,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:31:47,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:31:47,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:31:47,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:31:47,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:31:47,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:31:47,594 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:31:47,594 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:31:47,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:31:47,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:31:47,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:31:47,594 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c300c29b8d9fc061a97d8a30a731a0ec640f0644 [2019-12-07 20:31:47,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:31:47,764 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:31:47,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:31:47,768 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:31:47,768 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:31:47,769 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2019-12-07 20:31:47,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/data/ea7df6ae6/1d8a2ded80ab48b98f98746126af75e5/FLAG40079f46d [2019-12-07 20:31:48,282 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:31:48,283 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2019-12-07 20:31:48,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/data/ea7df6ae6/1d8a2ded80ab48b98f98746126af75e5/FLAG40079f46d [2019-12-07 20:31:48,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/data/ea7df6ae6/1d8a2ded80ab48b98f98746126af75e5 [2019-12-07 20:31:48,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:31:48,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:31:48,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:31:48,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:31:48,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:31:48,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:31:48" (1/1) ... [2019-12-07 20:31:48,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48, skipping insertion in model container [2019-12-07 20:31:48,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:31:48" (1/1) ... [2019-12-07 20:31:48,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:31:48,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:31:48,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:31:48,556 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:31:48,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:31:48,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:31:48,603 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:31:48,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:31:48,660 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:31:48,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48 WrapperNode [2019-12-07 20:31:48,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:31:48,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:31:48,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:31:48,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:31:48,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48" (1/1) ... [2019-12-07 20:31:48,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48" (1/1) ... [2019-12-07 20:31:48,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:31:48,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:31:48,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:31:48,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:31:48,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48" (1/1) ... [2019-12-07 20:31:48,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48" (1/1) ... [2019-12-07 20:31:48,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48" (1/1) ... [2019-12-07 20:31:48,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48" (1/1) ... [2019-12-07 20:31:48,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48" (1/1) ... [2019-12-07 20:31:48,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48" (1/1) ... [2019-12-07 20:31:48,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48" (1/1) ... [2019-12-07 20:31:48,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:31:48,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:31:48,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:31:48,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:31:48,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:31:48,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:31:48,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:31:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:31:48,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:31:49,236 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:31:49,236 INFO L287 CfgBuilder]: Removed 102 assume(true) statements. [2019-12-07 20:31:49,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:31:49 BoogieIcfgContainer [2019-12-07 20:31:49,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:31:49,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:31:49,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:31:49,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:31:49,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:31:48" (1/3) ... [2019-12-07 20:31:49,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d438dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:31:49, skipping insertion in model container [2019-12-07 20:31:49,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:48" (2/3) ... [2019-12-07 20:31:49,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d438dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:31:49, skipping insertion in model container [2019-12-07 20:31:49,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:31:49" (3/3) ... [2019-12-07 20:31:49,243 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2019-12-07 20:31:49,249 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:31:49,254 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:31:49,262 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:31:49,278 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:31:49,278 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:31:49,278 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:31:49,278 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:31:49,279 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:31:49,279 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:31:49,279 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:31:49,279 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:31:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-12-07 20:31:49,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 20:31:49,294 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:49,295 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:31:49,295 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:49,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:49,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1673386384, now seen corresponding path program 1 times [2019-12-07 20:31:49,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:49,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889203179] [2019-12-07 20:31:49,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 20:31:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:49,447 INFO L264 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:31:49,451 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:49,462 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:49,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889203179] [2019-12-07 20:31:49,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:49,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:31:49,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130157510] [2019-12-07 20:31:49,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:31:49,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:49,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:31:49,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:31:49,481 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2019-12-07 20:31:49,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:49,501 INFO L93 Difference]: Finished difference Result 161 states and 246 transitions. [2019-12-07 20:31:49,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:31:49,502 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 20:31:49,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:49,510 INFO L225 Difference]: With dead ends: 161 [2019-12-07 20:31:49,510 INFO L226 Difference]: Without dead ends: 80 [2019-12-07 20:31:49,512 INFO L630 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 [2019-12-07 20:31:49,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-12-07 20:31:49,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2019-12-07 20:31:49,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-12-07 20:31:49,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2019-12-07 20:31:49,544 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 18 [2019-12-07 20:31:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:49,544 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2019-12-07 20:31:49,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:31:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2019-12-07 20:31:49,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 20:31:49,545 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:49,545 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:31:49,746 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:31:49,747 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:49,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:49,747 INFO L82 PathProgramCache]: Analyzing trace with hash 572864739, now seen corresponding path program 1 times [2019-12-07 20:31:49,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:49,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14549965] [2019-12-07 20:31:49,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 20:31:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:49,954 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:31:49,956 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:49,973 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:49,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:49,982 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14549965] [2019-12-07 20:31:49,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:49,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:31:49,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620982393] [2019-12-07 20:31:49,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:31:49,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:49,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:31:49,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:31:49,985 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand 4 states. [2019-12-07 20:31:49,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:49,998 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2019-12-07 20:31:49,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:31:49,999 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 20:31:49,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:50,000 INFO L225 Difference]: With dead ends: 80 [2019-12-07 20:31:50,000 INFO L226 Difference]: Without dead ends: 38 [2019-12-07 20:31:50,001 INFO L630 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 [2019-12-07 20:31:50,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-12-07 20:31:50,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-12-07 20:31:50,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-07 20:31:50,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2019-12-07 20:31:50,005 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2019-12-07 20:31:50,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:50,005 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2019-12-07 20:31:50,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:31:50,005 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2019-12-07 20:31:50,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 20:31:50,006 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:50,006 INFO L410 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] [2019-12-07 20:31:50,206 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:31:50,207 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:50,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:50,208 INFO L82 PathProgramCache]: Analyzing trace with hash -2071848385, now seen corresponding path program 1 times [2019-12-07 20:31:50,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:50,209 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302280651] [2019-12-07 20:31:50,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/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 [2019-12-07 20:31:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:50,341 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:31:50,343 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:50,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:50,350 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:50,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:50,358 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302280651] [2019-12-07 20:31:50,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:50,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 20:31:50,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078945128] [2019-12-07 20:31:50,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:31:50,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:50,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:31:50,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:31:50,359 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 4 states. [2019-12-07 20:31:50,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:50,378 INFO L93 Difference]: Finished difference Result 124 states and 184 transitions. [2019-12-07 20:31:50,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:31:50,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 20:31:50,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:50,380 INFO L225 Difference]: With dead ends: 124 [2019-12-07 20:31:50,380 INFO L226 Difference]: Without dead ends: 93 [2019-12-07 20:31:50,381 INFO L630 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 [2019-12-07 20:31:50,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-12-07 20:31:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2019-12-07 20:31:50,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-07 20:31:50,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2019-12-07 20:31:50,391 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 24 [2019-12-07 20:31:50,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:50,391 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2019-12-07 20:31:50,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:31:50,391 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2019-12-07 20:31:50,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 20:31:50,392 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:50,392 INFO L410 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] [2019-12-07 20:31:50,592 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:31:50,593 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:50,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:50,593 INFO L82 PathProgramCache]: Analyzing trace with hash 343514617, now seen corresponding path program 1 times [2019-12-07 20:31:50,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:50,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028066411] [2019-12-07 20:31:50,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/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 [2019-12-07 20:31:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:50,719 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:31:50,721 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:50,727 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:50,730 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028066411] [2019-12-07 20:31:50,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:50,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:31:50,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093752768] [2019-12-07 20:31:50,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:31:50,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:50,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:31:50,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:31:50,733 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand 3 states. [2019-12-07 20:31:50,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:50,785 INFO L93 Difference]: Finished difference Result 131 states and 195 transitions. [2019-12-07 20:31:50,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:31:50,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 20:31:50,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:50,787 INFO L225 Difference]: With dead ends: 131 [2019-12-07 20:31:50,787 INFO L226 Difference]: Without dead ends: 80 [2019-12-07 20:31:50,787 INFO L630 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 [2019-12-07 20:31:50,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-12-07 20:31:50,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2019-12-07 20:31:50,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-12-07 20:31:50,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2019-12-07 20:31:50,795 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 25 [2019-12-07 20:31:50,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:50,795 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2019-12-07 20:31:50,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:31:50,795 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2019-12-07 20:31:50,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 20:31:50,796 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:50,796 INFO L410 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] [2019-12-07 20:31:50,997 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:31:50,998 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:50,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:50,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1750340408, now seen corresponding path program 1 times [2019-12-07 20:31:51,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:51,000 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851743949] [2019-12-07 20:31:51,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/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 [2019-12-07 20:31:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:51,175 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:31:51,176 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:51,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:51,191 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:51,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:51,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851743949] [2019-12-07 20:31:51,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:51,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 20:31:51,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060946831] [2019-12-07 20:31:51,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:31:51,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:51,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:31:51,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:31:51,198 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 5 states. [2019-12-07 20:31:51,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:51,261 INFO L93 Difference]: Finished difference Result 361 states and 530 transitions. [2019-12-07 20:31:51,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 20:31:51,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 20:31:51,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:51,263 INFO L225 Difference]: With dead ends: 361 [2019-12-07 20:31:51,263 INFO L226 Difference]: Without dead ends: 290 [2019-12-07 20:31:51,264 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 20:31:51,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2019-12-07 20:31:51,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 138. [2019-12-07 20:31:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-12-07 20:31:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 195 transitions. [2019-12-07 20:31:51,280 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 195 transitions. Word has length 27 [2019-12-07 20:31:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:51,280 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 195 transitions. [2019-12-07 20:31:51,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:31:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 195 transitions. [2019-12-07 20:31:51,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 20:31:51,281 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:51,281 INFO L410 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] [2019-12-07 20:31:51,481 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:31:51,482 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:51,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:51,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1110481728, now seen corresponding path program 1 times [2019-12-07 20:31:51,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:51,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466741175] [2019-12-07 20:31:51,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 20:31:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:51,599 INFO L264 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:31:51,600 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:51,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:51,614 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:51,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:51,617 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466741175] [2019-12-07 20:31:51,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:51,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:31:51,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942863388] [2019-12-07 20:31:51,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:31:51,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:51,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:31:51,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:31:51,619 INFO L87 Difference]: Start difference. First operand 138 states and 195 transitions. Second operand 5 states. [2019-12-07 20:31:51,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:51,766 INFO L93 Difference]: Finished difference Result 499 states and 711 transitions. [2019-12-07 20:31:51,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 20:31:51,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-12-07 20:31:51,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:51,768 INFO L225 Difference]: With dead ends: 499 [2019-12-07 20:31:51,769 INFO L226 Difference]: Without dead ends: 368 [2019-12-07 20:31:51,770 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 20:31:51,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2019-12-07 20:31:51,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 136. [2019-12-07 20:31:51,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-12-07 20:31:51,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 189 transitions. [2019-12-07 20:31:51,787 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 189 transitions. Word has length 28 [2019-12-07 20:31:51,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:51,787 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 189 transitions. [2019-12-07 20:31:51,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:31:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 189 transitions. [2019-12-07 20:31:51,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 20:31:51,789 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:51,789 INFO L410 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] [2019-12-07 20:31:51,989 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 20:31:51,990 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:51,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:51,990 INFO L82 PathProgramCache]: Analyzing trace with hash -2071146496, now seen corresponding path program 1 times [2019-12-07 20:31:51,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:51,991 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353947823] [2019-12-07 20:31:51,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 20:31:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:52,119 INFO L264 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:31:52,121 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:52,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:52,131 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:52,133 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353947823] [2019-12-07 20:31:52,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:52,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:31:52,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489551458] [2019-12-07 20:31:52,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:31:52,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:52,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:31:52,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:31:52,134 INFO L87 Difference]: Start difference. First operand 136 states and 189 transitions. Second operand 5 states. [2019-12-07 20:31:52,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:52,181 INFO L93 Difference]: Finished difference Result 401 states and 556 transitions. [2019-12-07 20:31:52,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 20:31:52,182 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-07 20:31:52,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:52,183 INFO L225 Difference]: With dead ends: 401 [2019-12-07 20:31:52,184 INFO L226 Difference]: Without dead ends: 272 [2019-12-07 20:31:52,184 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:31:52,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-12-07 20:31:52,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 142. [2019-12-07 20:31:52,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-07 20:31:52,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2019-12-07 20:31:52,200 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 195 transitions. Word has length 32 [2019-12-07 20:31:52,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:52,200 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 195 transitions. [2019-12-07 20:31:52,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:31:52,200 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2019-12-07 20:31:52,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 20:31:52,202 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:52,202 INFO L410 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] [2019-12-07 20:31:52,402 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 20:31:52,403 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:52,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:52,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1370081918, now seen corresponding path program 1 times [2019-12-07 20:31:52,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:52,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096825623] [2019-12-07 20:31:52,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 20:31:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:52,533 INFO L264 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:31:52,534 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:52,542 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:52,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:52,551 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096825623] [2019-12-07 20:31:52,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:52,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 20:31:52,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979729292] [2019-12-07 20:31:52,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 20:31:52,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:52,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 20:31:52,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 20:31:52,552 INFO L87 Difference]: Start difference. First operand 142 states and 195 transitions. Second operand 6 states. [2019-12-07 20:31:52,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:52,587 INFO L93 Difference]: Finished difference Result 435 states and 595 transitions. [2019-12-07 20:31:52,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:31:52,588 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-07 20:31:52,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:52,589 INFO L225 Difference]: With dead ends: 435 [2019-12-07 20:31:52,589 INFO L226 Difference]: Without dead ends: 300 [2019-12-07 20:31:52,590 INFO L630 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 [2019-12-07 20:31:52,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-12-07 20:31:52,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 146. [2019-12-07 20:31:52,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-12-07 20:31:52,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 199 transitions. [2019-12-07 20:31:52,601 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 199 transitions. Word has length 32 [2019-12-07 20:31:52,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:52,601 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 199 transitions. [2019-12-07 20:31:52,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 20:31:52,601 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 199 transitions. [2019-12-07 20:31:52,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 20:31:52,602 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:52,602 INFO L410 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] [2019-12-07 20:31:52,802 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 20:31:52,803 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:52,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:52,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1956887932, now seen corresponding path program 1 times [2019-12-07 20:31:52,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:52,804 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1267130143] [2019-12-07 20:31:52,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 20:31:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:52,924 INFO L264 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:31:52,925 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:52,930 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:52,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:52,937 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1267130143] [2019-12-07 20:31:52,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:52,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 20:31:52,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062156362] [2019-12-07 20:31:52,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:31:52,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:52,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:31:52,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:31:52,938 INFO L87 Difference]: Start difference. First operand 146 states and 199 transitions. Second operand 4 states. [2019-12-07 20:31:52,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:52,987 INFO L93 Difference]: Finished difference Result 496 states and 679 transitions. [2019-12-07 20:31:52,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:31:52,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-07 20:31:52,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:52,990 INFO L225 Difference]: With dead ends: 496 [2019-12-07 20:31:52,990 INFO L226 Difference]: Without dead ends: 357 [2019-12-07 20:31:52,991 INFO L630 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 [2019-12-07 20:31:52,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-12-07 20:31:53,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 269. [2019-12-07 20:31:53,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-12-07 20:31:53,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 364 transitions. [2019-12-07 20:31:53,015 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 364 transitions. Word has length 32 [2019-12-07 20:31:53,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:53,016 INFO L462 AbstractCegarLoop]: Abstraction has 269 states and 364 transitions. [2019-12-07 20:31:53,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:31:53,016 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 364 transitions. [2019-12-07 20:31:53,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 20:31:53,017 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:53,017 INFO L410 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] [2019-12-07 20:31:53,217 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 20:31:53,217 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:53,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:53,218 INFO L82 PathProgramCache]: Analyzing trace with hash 875175876, now seen corresponding path program 1 times [2019-12-07 20:31:53,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:53,218 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006073964] [2019-12-07 20:31:53,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 20:31:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:53,313 INFO L264 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:31:53,315 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:53,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:53,319 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:31:53,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006073964] [2019-12-07 20:31:53,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:53,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:31:53,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486754529] [2019-12-07 20:31:53,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:31:53,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:53,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:31:53,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:31:53,323 INFO L87 Difference]: Start difference. First operand 269 states and 364 transitions. Second operand 3 states. [2019-12-07 20:31:53,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:53,377 INFO L93 Difference]: Finished difference Result 419 states and 564 transitions. [2019-12-07 20:31:53,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:31:53,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-12-07 20:31:53,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:53,380 INFO L225 Difference]: With dead ends: 419 [2019-12-07 20:31:53,380 INFO L226 Difference]: Without dead ends: 417 [2019-12-07 20:31:53,380 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:31:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2019-12-07 20:31:53,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 323. [2019-12-07 20:31:53,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2019-12-07 20:31:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 444 transitions. [2019-12-07 20:31:53,398 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 444 transitions. Word has length 33 [2019-12-07 20:31:53,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:53,398 INFO L462 AbstractCegarLoop]: Abstraction has 323 states and 444 transitions. [2019-12-07 20:31:53,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:31:53,398 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 444 transitions. [2019-12-07 20:31:53,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 20:31:53,399 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:53,399 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:31:53,599 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 20:31:53,600 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:53,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:53,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1646221848, now seen corresponding path program 1 times [2019-12-07 20:31:53,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:53,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682172096] [2019-12-07 20:31:53,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 20:31:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:31:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:31:55,537 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:31:55,537 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:31:55,738 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 20:31:55,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:31:55 BoogieIcfgContainer [2019-12-07 20:31:55,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:31:55,847 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:31:55,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:31:55,847 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:31:55,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:31:49" (3/4) ... [2019-12-07 20:31:55,850 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:31:55,939 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_00462e54-d19a-4f43-848c-cd06cb5a80ec/bin/utaipan/witness.graphml [2019-12-07 20:31:55,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:31:55,941 INFO L168 Benchmark]: Toolchain (without parser) took 7637.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 953.7 MB in the beginning and 873.2 MB in the end (delta: 80.6 MB). Peak memory consumption was 287.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:55,941 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:31:55,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:55,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:55,942 INFO L168 Benchmark]: Boogie Preprocessor took 28.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:31:55,942 INFO L168 Benchmark]: RCFGBuilder took 507.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:55,943 INFO L168 Benchmark]: TraceAbstraction took 6608.60 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.2 MB). Free memory was 1.0 GB in the beginning and 896.0 MB in the end (delta: 122.1 MB). Peak memory consumption was 202.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:55,943 INFO L168 Benchmark]: Witness Printer took 92.56 ms. Allocated memory is still 1.2 GB. Free memory was 896.0 MB in the beginning and 873.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:55,944 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 356.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 507.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6608.60 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.2 MB). Free memory was 1.0 GB in the beginning and 896.0 MB in the end (delta: 122.1 MB). Peak memory consumption was 202.4 MB. Max. memory is 11.5 GB. * Witness Printer took 92.56 ms. Allocated memory is still 1.2 GB. Free memory was 896.0 MB in the beginning and 873.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 736]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int pumpRunning = 0; [L417] int systemActive = 1; [L655] int methAndRunningLastTime ; [L741] int cleanupTimeShifts = 4; [L839] int waterLevel = 1; [L840] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L815] int retValue_acc ; [L816] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L723] int retValue_acc ; [L726] retValue_acc = 1 [L727] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L822] tmp = valid_product() [L824] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L660] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L588] int splverifierCounter ; [L589] int tmp ; [L590] int tmp___0 ; [L591] int tmp___1 ; [L592] int tmp___2 ; [L595] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L597] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L599] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] tmp = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L857] COND TRUE waterLevel < 2 [L858] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L615] tmp___0 = __VERIFIER_nondet_int() [L617] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L869] COND FALSE !(\read(methaneLevelCritical)) [L872] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L625] tmp___2 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L424] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L431] COND TRUE \read(systemActive) [L453] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L456] COND TRUE ! pumpRunning [L550] int retValue_acc ; [L551] int tmp ; [L552] int tmp___0 ; [L919] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L922] COND FALSE !(waterLevel < 2) [L926] retValue_acc = 0 [L927] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L556] tmp = isHighWaterSensorDry() [L558] COND FALSE !(\read(tmp)) [L561] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L563] retValue_acc = tmp___0 [L564] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L458] tmp = isHighWaterLevel() [L460] COND TRUE \read(tmp) [L481] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L665] int tmp ; [L666] int tmp___0 ; [L878] int retValue_acc ; [L881] retValue_acc = methaneLevelCritical [L882] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L670] tmp = isMethaneLevelCritical() [L672] COND TRUE \read(tmp) [L505] int retValue_acc ; [L508] retValue_acc = pumpRunning [L509] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L674] tmp___0 = isPumpRunning() [L676] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L677] COND FALSE !(\read(methAndRunningLastTime)) [L682] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L597] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L605] tmp = __VERIFIER_nondet_int() [L607] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L615] tmp___0 = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L625] tmp___2 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L424] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L845] COND TRUE waterLevel > 0 [L846] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L431] COND TRUE \read(systemActive) [L453] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L456] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L665] int tmp ; [L666] int tmp___0 ; [L878] int retValue_acc ; [L881] retValue_acc = methaneLevelCritical [L882] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] tmp = isMethaneLevelCritical() [L672] COND TRUE \read(tmp) [L505] int retValue_acc ; [L508] retValue_acc = pumpRunning [L509] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L674] tmp___0 = isPumpRunning() [L676] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L677] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L736] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.4s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 719 SDtfs, 892 SDslu, 1182 SDs, 0 SdLazy, 126 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 536 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred in iteration=10, 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, 10 MinimizatonAttempts, 887 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 27730 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1908 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...