./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.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_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 fa3516ef35b9a868c2359cecbd34fc3153ca14ae ...................................................................................................................................... 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_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 fa3516ef35b9a868c2359cecbd34fc3153ca14ae .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 10:27:30,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:27:30,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:27:30,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:27:30,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:27:30,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:27:30,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:27:30,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:27:30,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:27:30,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:27:30,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:27:30,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:27:30,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:27:30,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:27:30,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:27:30,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:27:30,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:27:30,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:27:30,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:27:30,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:27:30,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:27:30,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:27:30,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:27:30,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:27:30,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:27:30,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:27:30,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:27:30,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:27:30,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:27:30,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:27:30,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:27:30,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:27:30,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:27:30,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:27:30,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:27:30,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:27:30,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:27:30,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:27:30,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:27:30,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:27:30,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:27:30,056 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 10:27:30,070 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:27:30,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:27:30,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:27:30,071 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:27:30,071 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:27:30,071 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:27:30,071 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 10:27:30,071 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:27:30,071 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:27:30,072 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 10:27:30,072 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 10:27:30,072 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:27:30,072 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 10:27:30,072 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 10:27:30,073 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 10:27:30,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:27:30,073 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:27:30,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:27:30,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:27:30,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:27:30,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:27:30,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:27:30,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:27:30,075 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:27:30,075 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:27:30,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:27:30,075 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:27:30,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:27:30,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:27:30,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:27:30,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:27:30,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:27:30,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:27:30,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:27:30,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:27:30,076 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 10:27:30,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:27:30,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:27:30,077 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:27:30,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:27:30,077 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_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 -> fa3516ef35b9a868c2359cecbd34fc3153ca14ae [2019-12-07 10:27:30,186 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:27:30,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:27:30,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:27:30,197 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:27:30,197 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:27:30,197 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2019-12-07 10:27:30,234 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/data/353da19cb/1919d3c7b71142168b0134489723d7f3/FLAG3a7a00634 [2019-12-07 10:27:30,676 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:27:30,676 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2019-12-07 10:27:30,684 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/data/353da19cb/1919d3c7b71142168b0134489723d7f3/FLAG3a7a00634 [2019-12-07 10:27:30,692 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/data/353da19cb/1919d3c7b71142168b0134489723d7f3 [2019-12-07 10:27:30,694 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:27:30,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:27:30,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:27:30,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:27:30,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:27:30,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:27:30" (1/1) ... [2019-12-07 10:27:30,702 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 10:27:30, skipping insertion in model container [2019-12-07 10:27:30,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:27:30" (1/1) ... [2019-12-07 10:27:30,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:27:30,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:27:30,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:27:30,959 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 10:27:30,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@52968d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:30, skipping insertion in model container [2019-12-07 10:27:30,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:27:30,960 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 10:27:30,961 INFO L168 Benchmark]: Toolchain (without parser) took 265.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:30,962 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:27:30,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:30,964 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 110]: 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 10:27:32,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:27:32,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:27:32,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:27:32,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:27:32,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:27:32,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:27:32,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:27:32,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:27:32,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:27:32,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:27:32,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:27:32,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:27:32,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:27:32,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:27:32,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:27:32,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:27:32,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:27:32,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:27:32,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:27:32,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:27:32,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:27:32,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:27:32,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:27:32,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:27:32,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:27:32,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:27:32,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:27:32,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:27:32,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:27:32,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:27:32,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:27:32,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:27:32,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:27:32,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:27:32,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:27:32,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:27:32,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:27:32,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:27:32,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:27:32,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:27:32,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 10:27:32,131 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:27:32,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:27:32,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:27:32,132 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:27:32,133 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:27:32,133 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:27:32,133 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:27:32,133 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:27:32,133 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:27:32,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:27:32,134 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:27:32,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:27:32,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:27:32,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:27:32,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:27:32,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:27:32,135 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:27:32,135 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:27:32,135 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:27:32,135 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:27:32,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:27:32,135 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:27:32,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:27:32,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:27:32,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:27:32,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:27:32,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:27:32,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:27:32,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:27:32,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:27:32,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:27:32,137 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 10:27:32,137 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:27:32,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:27:32,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:27:32,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:27:32,138 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_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 -> fa3516ef35b9a868c2359cecbd34fc3153ca14ae [2019-12-07 10:27:32,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:27:32,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:27:32,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:27:32,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:27:32,321 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:27:32,322 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2019-12-07 10:27:32,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/data/ade3cae90/27f2d5d8d4af438a97cd4c9b161e5d2d/FLAG82db40e08 [2019-12-07 10:27:32,819 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:27:32,819 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2019-12-07 10:27:32,827 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/data/ade3cae90/27f2d5d8d4af438a97cd4c9b161e5d2d/FLAG82db40e08 [2019-12-07 10:27:32,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/data/ade3cae90/27f2d5d8d4af438a97cd4c9b161e5d2d [2019-12-07 10:27:32,839 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:27:32,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:27:32,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:27:32,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:27:32,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:27:32,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:27:32" (1/1) ... [2019-12-07 10:27:32,845 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 10:27:32, skipping insertion in model container [2019-12-07 10:27:32,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:27:32" (1/1) ... [2019-12-07 10:27:32,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:27:32,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:27:33,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:27:33,107 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 10:27:33,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:27:33,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:27:33,158 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:27:33,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:27:33,239 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:27:33,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33 WrapperNode [2019-12-07 10:27:33,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:27:33,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:27:33,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:27:33,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:27:33,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33" (1/1) ... [2019-12-07 10:27:33,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33" (1/1) ... [2019-12-07 10:27:33,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:27:33,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:27:33,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:27:33,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:27:33,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33" (1/1) ... [2019-12-07 10:27:33,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33" (1/1) ... [2019-12-07 10:27:33,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33" (1/1) ... [2019-12-07 10:27:33,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33" (1/1) ... [2019-12-07 10:27:33,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33" (1/1) ... [2019-12-07 10:27:33,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33" (1/1) ... [2019-12-07 10:27:33,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33" (1/1) ... [2019-12-07 10:27:33,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:27:33,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:27:33,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:27:33,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:27:33,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:27:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 10:27:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:27:33,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:27:33,844 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:27:33,844 INFO L287 CfgBuilder]: Removed 116 assume(true) statements. [2019-12-07 10:27:33,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:27:33 BoogieIcfgContainer [2019-12-07 10:27:33,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:27:33,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:27:33,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:27:33,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:27:33,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:27:32" (1/3) ... [2019-12-07 10:27:33,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70204ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:27:33, skipping insertion in model container [2019-12-07 10:27:33,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:33" (2/3) ... [2019-12-07 10:27:33,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70204ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:27:33, skipping insertion in model container [2019-12-07 10:27:33,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:27:33" (3/3) ... [2019-12-07 10:27:33,850 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2019-12-07 10:27:33,857 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:27:33,862 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 10:27:33,870 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 10:27:33,887 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:27:33,887 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:27:33,887 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:27:33,887 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:27:33,887 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:27:33,887 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:27:33,888 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:27:33,888 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:27:33,899 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2019-12-07 10:27:33,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 10:27:33,903 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:33,904 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 10:27:33,904 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:33,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:33,908 INFO L82 PathProgramCache]: Analyzing trace with hash -466361678, now seen corresponding path program 1 times [2019-12-07 10:27:33,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:33,917 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889791347] [2019-12-07 10:27:33,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:34,042 INFO L264 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 10:27:34,046 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:27:34,056 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 10:27:34,057 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:27:34,060 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 10:27:34,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889791347] [2019-12-07 10:27:34,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:34,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 10:27:34,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305791659] [2019-12-07 10:27:34,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 10:27:34,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:27:34,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 10:27:34,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 10:27:34,076 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 2 states. [2019-12-07 10:27:34,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:34,095 INFO L93 Difference]: Finished difference Result 175 states and 264 transitions. [2019-12-07 10:27:34,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 10:27:34,096 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 10:27:34,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:34,104 INFO L225 Difference]: With dead ends: 175 [2019-12-07 10:27:34,104 INFO L226 Difference]: Without dead ends: 87 [2019-12-07 10:27:34,107 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 10:27:34,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-12-07 10:27:34,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-12-07 10:27:34,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-12-07 10:27:34,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2019-12-07 10:27:34,136 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 18 [2019-12-07 10:27:34,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:34,136 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2019-12-07 10:27:34,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 10:27:34,136 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2019-12-07 10:27:34,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 10:27:34,137 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:34,137 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 10:27:34,338 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:27:34,338 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:34,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:34,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1078824867, now seen corresponding path program 1 times [2019-12-07 10:27:34,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:34,340 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381863253] [2019-12-07 10:27:34,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:34,471 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:27:34,473 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:27:34,486 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 10:27:34,486 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:27:34,495 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 10:27:34,496 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381863253] [2019-12-07 10:27:34,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:34,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 10:27:34,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839141809] [2019-12-07 10:27:34,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:27:34,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:27:34,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:27:34,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:27:34,498 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand 4 states. [2019-12-07 10:27:34,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:34,509 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2019-12-07 10:27:34,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:27:34,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 10:27:34,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:34,510 INFO L225 Difference]: With dead ends: 87 [2019-12-07 10:27:34,510 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 10:27:34,511 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 10:27:34,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 10:27:34,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 10:27:34,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 10:27:34,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2019-12-07 10:27:34,516 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 19 [2019-12-07 10:27:34,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:34,516 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2019-12-07 10:27:34,516 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:27:34,517 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2019-12-07 10:27:34,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 10:27:34,517 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:34,518 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 10:27:34,718 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 10:27:34,719 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:34,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:34,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1959799754, now seen corresponding path program 1 times [2019-12-07 10:27:34,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:34,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709557454] [2019-12-07 10:27:34,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:34,866 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:27:34,867 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:27:34,875 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 10:27:34,875 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:27:34,881 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 10:27:34,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709557454] [2019-12-07 10:27:34,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:34,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 10:27:34,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533273096] [2019-12-07 10:27:34,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:27:34,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:27:34,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:27:34,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:27:34,883 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 4 states. [2019-12-07 10:27:34,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:34,890 INFO L93 Difference]: Finished difference Result 71 states and 103 transitions. [2019-12-07 10:27:34,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:27:34,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 10:27:34,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:34,891 INFO L225 Difference]: With dead ends: 71 [2019-12-07 10:27:34,891 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 10:27:34,891 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 10:27:34,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 10:27:34,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 10:27:34,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 10:27:34,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-12-07 10:27:34,896 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 24 [2019-12-07 10:27:34,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:34,896 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-12-07 10:27:34,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:27:34,896 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-12-07 10:27:34,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 10:27:34,897 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:34,897 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 10:27:35,097 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 10:27:35,098 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:35,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:35,098 INFO L82 PathProgramCache]: Analyzing trace with hash -2070782503, now seen corresponding path program 1 times [2019-12-07 10:27:35,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:35,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621823344] [2019-12-07 10:27:35,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:35,259 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:27:35,261 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:27:35,266 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 10:27:35,267 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:27:35,269 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 10:27:35,269 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621823344] [2019-12-07 10:27:35,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:35,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 10:27:35,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684848995] [2019-12-07 10:27:35,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:27:35,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:27:35,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:27:35,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:27:35,271 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 3 states. [2019-12-07 10:27:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:35,315 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2019-12-07 10:27:35,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:27:35,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 10:27:35,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:35,316 INFO L225 Difference]: With dead ends: 93 [2019-12-07 10:27:35,316 INFO L226 Difference]: Without dead ends: 61 [2019-12-07 10:27:35,317 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 10:27:35,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-12-07 10:27:35,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2019-12-07 10:27:35,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-12-07 10:27:35,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2019-12-07 10:27:35,325 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 25 [2019-12-07 10:27:35,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:35,326 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2019-12-07 10:27:35,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:27:35,326 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2019-12-07 10:27:35,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 10:27:35,327 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:35,327 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] [2019-12-07 10:27:35,527 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 10:27:35,528 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:35,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:35,529 INFO L82 PathProgramCache]: Analyzing trace with hash -576163675, now seen corresponding path program 1 times [2019-12-07 10:27:35,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:35,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524603787] [2019-12-07 10:27:35,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:35,634 INFO L264 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 10:27:35,636 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:27:35,651 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 10:27:35,651 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:27:35,659 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 10:27:35,660 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524603787] [2019-12-07 10:27:35,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:35,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 10:27:35,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119145637] [2019-12-07 10:27:35,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:27:35,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:27:35,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:27:35,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:27:35,661 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand 5 states. [2019-12-07 10:27:35,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:35,746 INFO L93 Difference]: Finished difference Result 271 states and 394 transitions. [2019-12-07 10:27:35,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 10:27:35,747 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 10:27:35,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:35,748 INFO L225 Difference]: With dead ends: 271 [2019-12-07 10:27:35,748 INFO L226 Difference]: Without dead ends: 219 [2019-12-07 10:27:35,749 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 10:27:35,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-12-07 10:27:35,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 103. [2019-12-07 10:27:35,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-12-07 10:27:35,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2019-12-07 10:27:35,762 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 31 [2019-12-07 10:27:35,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:35,762 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2019-12-07 10:27:35,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:27:35,762 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2019-12-07 10:27:35,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 10:27:35,763 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:35,763 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 10:27:35,963 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 10:27:35,964 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:35,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:35,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1086399261, now seen corresponding path program 1 times [2019-12-07 10:27:35,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:35,965 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172971237] [2019-12-07 10:27:35,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:36,078 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 10:27:36,080 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:27:36,094 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 10:27:36,094 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:27:36,097 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 10:27:36,097 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172971237] [2019-12-07 10:27:36,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:36,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 10:27:36,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739548730] [2019-12-07 10:27:36,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:27:36,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:27:36,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:27:36,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:27:36,099 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand 5 states. [2019-12-07 10:27:36,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:36,205 INFO L93 Difference]: Finished difference Result 376 states and 533 transitions. [2019-12-07 10:27:36,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 10:27:36,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-07 10:27:36,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:36,207 INFO L225 Difference]: With dead ends: 376 [2019-12-07 10:27:36,208 INFO L226 Difference]: Without dead ends: 280 [2019-12-07 10:27:36,208 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 10:27:36,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-12-07 10:27:36,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2019-12-07 10:27:36,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-12-07 10:27:36,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 141 transitions. [2019-12-07 10:27:36,232 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 141 transitions. Word has length 32 [2019-12-07 10:27:36,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:36,233 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 141 transitions. [2019-12-07 10:27:36,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:27:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2019-12-07 10:27:36,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 10:27:36,234 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:36,234 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, 1, 1] [2019-12-07 10:27:36,435 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 10:27:36,435 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:36,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:36,436 INFO L82 PathProgramCache]: Analyzing trace with hash 477559900, now seen corresponding path program 1 times [2019-12-07 10:27:36,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:36,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158442852] [2019-12-07 10:27:36,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:36,570 INFO L264 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 10:27:36,571 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:27:36,583 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 10:27:36,584 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:27:36,586 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 10:27:36,586 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158442852] [2019-12-07 10:27:36,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:36,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 10:27:36,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207671786] [2019-12-07 10:27:36,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:27:36,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:27:36,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:27:36,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:27:36,588 INFO L87 Difference]: Start difference. First operand 102 states and 141 transitions. Second operand 5 states. [2019-12-07 10:27:36,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:36,630 INFO L93 Difference]: Finished difference Result 273 states and 377 transitions. [2019-12-07 10:27:36,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:27:36,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-12-07 10:27:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:36,632 INFO L225 Difference]: With dead ends: 273 [2019-12-07 10:27:36,632 INFO L226 Difference]: Without dead ends: 178 [2019-12-07 10:27:36,632 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 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 10:27:36,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-12-07 10:27:36,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2019-12-07 10:27:36,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-12-07 10:27:36,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2019-12-07 10:27:36,640 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 35 [2019-12-07 10:27:36,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:36,641 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2019-12-07 10:27:36,641 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:27:36,641 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2019-12-07 10:27:36,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 10:27:36,642 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:36,642 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, 1, 1] [2019-12-07 10:27:36,842 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 10:27:36,843 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:36,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:36,844 INFO L82 PathProgramCache]: Analyzing trace with hash -533557350, now seen corresponding path program 1 times [2019-12-07 10:27:36,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:36,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001800826] [2019-12-07 10:27:36,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:36,986 INFO L264 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:27:36,987 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:27:36,996 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 10:27:36,997 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:27:37,007 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 10:27:37,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001800826] [2019-12-07 10:27:37,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:37,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 10:27:37,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524188202] [2019-12-07 10:27:37,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 10:27:37,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:27:37,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 10:27:37,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:27:37,009 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand 6 states. [2019-12-07 10:27:37,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:37,035 INFO L93 Difference]: Finished difference Result 291 states and 395 transitions. [2019-12-07 10:27:37,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 10:27:37,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-12-07 10:27:37,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:37,037 INFO L225 Difference]: With dead ends: 291 [2019-12-07 10:27:37,037 INFO L226 Difference]: Without dead ends: 190 [2019-12-07 10:27:37,037 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 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 10:27:37,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2019-12-07 10:27:37,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 112. [2019-12-07 10:27:37,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-12-07 10:27:37,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2019-12-07 10:27:37,045 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 151 transitions. Word has length 35 [2019-12-07 10:27:37,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:37,045 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 151 transitions. [2019-12-07 10:27:37,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 10:27:37,045 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 151 transitions. [2019-12-07 10:27:37,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 10:27:37,046 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:37,046 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, 1, 1] [2019-12-07 10:27:37,246 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 10:27:37,247 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:37,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:37,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1554625704, now seen corresponding path program 1 times [2019-12-07 10:27:37,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:37,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728059645] [2019-12-07 10:27:37,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:37,385 INFO L264 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:27:37,386 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:27:37,391 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 10:27:37,392 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:27:37,399 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 10:27:37,399 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728059645] [2019-12-07 10:27:37,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:37,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 10:27:37,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473543059] [2019-12-07 10:27:37,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:27:37,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:27:37,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:27:37,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:27:37,400 INFO L87 Difference]: Start difference. First operand 112 states and 151 transitions. Second operand 4 states. [2019-12-07 10:27:37,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:37,434 INFO L93 Difference]: Finished difference Result 350 states and 475 transitions. [2019-12-07 10:27:37,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:27:37,434 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-12-07 10:27:37,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:37,436 INFO L225 Difference]: With dead ends: 350 [2019-12-07 10:27:37,436 INFO L226 Difference]: Without dead ends: 245 [2019-12-07 10:27:37,437 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 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 10:27:37,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2019-12-07 10:27:37,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 195. [2019-12-07 10:27:37,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-12-07 10:27:37,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 262 transitions. [2019-12-07 10:27:37,455 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 262 transitions. Word has length 35 [2019-12-07 10:27:37,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:37,455 INFO L462 AbstractCegarLoop]: Abstraction has 195 states and 262 transitions. [2019-12-07 10:27:37,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:27:37,455 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 262 transitions. [2019-12-07 10:27:37,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 10:27:37,456 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:37,456 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, 1, 1, 1] [2019-12-07 10:27:37,657 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 10:27:37,657 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:37,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1879284200, now seen corresponding path program 1 times [2019-12-07 10:27:37,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:37,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875289145] [2019-12-07 10:27:37,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:37,776 INFO L264 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 10:27:37,777 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:27:37,797 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 10:27:37,798 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:27:37,823 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 10:27:37,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875289145] [2019-12-07 10:27:37,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:37,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 10:27:37,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376590647] [2019-12-07 10:27:37,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 10:27:37,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:27:37,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 10:27:37,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 10:27:37,825 INFO L87 Difference]: Start difference. First operand 195 states and 262 transitions. Second operand 10 states. [2019-12-07 10:27:38,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:38,161 INFO L93 Difference]: Finished difference Result 793 states and 1045 transitions. [2019-12-07 10:27:38,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 10:27:38,161 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2019-12-07 10:27:38,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:38,164 INFO L225 Difference]: With dead ends: 793 [2019-12-07 10:27:38,164 INFO L226 Difference]: Without dead ends: 605 [2019-12-07 10:27:38,164 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-12-07 10:27:38,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2019-12-07 10:27:38,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 195. [2019-12-07 10:27:38,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-12-07 10:27:38,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2019-12-07 10:27:38,178 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 257 transitions. Word has length 36 [2019-12-07 10:27:38,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:38,179 INFO L462 AbstractCegarLoop]: Abstraction has 195 states and 257 transitions. [2019-12-07 10:27:38,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 10:27:38,179 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 257 transitions. [2019-12-07 10:27:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 10:27:38,180 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:38,180 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2019-12-07 10:27:38,380 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 10:27:38,381 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:38,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:38,381 INFO L82 PathProgramCache]: Analyzing trace with hash 749013372, now seen corresponding path program 1 times [2019-12-07 10:27:38,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:38,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911916511] [2019-12-07 10:27:38,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/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 10:27:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:38,530 INFO L264 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:27:38,531 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:27:38,536 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:27:38,536 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:27:38,539 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:27:38,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911916511] [2019-12-07 10:27:38,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:38,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 10:27:38,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664660320] [2019-12-07 10:27:38,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:27:38,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:27:38,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:27:38,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:27:38,540 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. Second operand 3 states. [2019-12-07 10:27:38,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:38,587 INFO L93 Difference]: Finished difference Result 319 states and 420 transitions. [2019-12-07 10:27:38,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:27:38,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-12-07 10:27:38,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:38,589 INFO L225 Difference]: With dead ends: 319 [2019-12-07 10:27:38,589 INFO L226 Difference]: Without dead ends: 317 [2019-12-07 10:27:38,589 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 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 10:27:38,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2019-12-07 10:27:38,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 235. [2019-12-07 10:27:38,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2019-12-07 10:27:38,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 316 transitions. [2019-12-07 10:27:38,602 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 316 transitions. Word has length 51 [2019-12-07 10:27:38,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:38,603 INFO L462 AbstractCegarLoop]: Abstraction has 235 states and 316 transitions. [2019-12-07 10:27:38,603 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:27:38,603 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 316 transitions. [2019-12-07 10:27:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-12-07 10:27:38,603 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:38,604 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 10:27:38,804 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 10:27:38,805 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:27:38,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:38,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1849817445, now seen corresponding path program 1 times [2019-12-07 10:27:38,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:27:38,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385049462] [2019-12-07 10:27:38,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-12-07 10:27:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:27:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:27:40,468 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 10:27:40,469 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:27:40,669 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-12-07 10:27:40,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:27:40 BoogieIcfgContainer [2019-12-07 10:27:40,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:27:40,783 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:27:40,783 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:27:40,783 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:27:40,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:27:33" (3/4) ... [2019-12-07 10:27:40,785 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:27:40,875 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f7fb9c88-43aa-4e3e-91c3-716719711e59/bin/utaipan/witness.graphml [2019-12-07 10:27:40,875 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:27:40,876 INFO L168 Benchmark]: Toolchain (without parser) took 8036.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.1 MB). Free memory was 952.4 MB in the beginning and 784.8 MB in the end (delta: 167.5 MB). Peak memory consumption was 374.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:40,877 INFO L168 Benchmark]: CDTParser took 0.13 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 10:27:40,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:40,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.17 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:40,877 INFO L168 Benchmark]: Boogie Preprocessor took 35.11 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 10:27:40,877 INFO L168 Benchmark]: RCFGBuilder took 520.16 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: 74.8 MB). Peak memory consumption was 74.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:40,878 INFO L168 Benchmark]: TraceAbstraction took 6936.99 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 812.2 MB in the end (delta: 208.4 MB). Peak memory consumption was 288.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:40,878 INFO L168 Benchmark]: Witness Printer took 92.25 ms. Allocated memory is still 1.2 GB. Free memory was 812.2 MB in the beginning and 784.8 MB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:40,879 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 399.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.17 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.11 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 520.16 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: 74.8 MB). Peak memory consumption was 74.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6936.99 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 812.2 MB in the end (delta: 208.4 MB). Peak memory consumption was 288.7 MB. Max. memory is 11.5 GB. * Witness Printer took 92.25 ms. Allocated memory is still 1.2 GB. Free memory was 812.2 MB in the beginning and 784.8 MB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 830]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L43] int methAndRunningLastTime ; [L251] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L455] int pumpRunning = 0; [L456] int systemActive = 1; [L628] int waterLevel = 1; [L629] int methaneLevelCritical = 0; [L835] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L909] int retValue_acc ; [L910] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L916] tmp = valid_product() [L918] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L724] int splverifierCounter ; [L725] int tmp ; [L726] int tmp___0 ; [L727] int tmp___1 ; [L728] int tmp___2 ; [L731] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L733] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L735] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L741] tmp = __VERIFIER_nondet_int() [L743] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L646] COND TRUE waterLevel < 2 [L647] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L462] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L469] COND TRUE \read(systemActive) [L491] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L494] COND TRUE ! pumpRunning [L606] int retValue_acc ; [L607] int tmp ; [L608] int tmp___0 ; [L708] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L711] COND FALSE !(waterLevel < 2) [L715] retValue_acc = 0 [L716] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] tmp = isHighWaterSensorDry() [L614] COND FALSE !(\read(tmp)) [L617] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L619] retValue_acc = tmp___0 [L620] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] tmp = isHighWaterLevel() [L498] COND TRUE \read(tmp) [L525] int tmp ; [L550] int retValue_acc ; [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] retValue_acc = isMethaneLevelCritical() [L556] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L529] tmp = isMethaneAlarm() [L531] COND FALSE !(\read(tmp)) [L519] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] int tmp ; [L54] int tmp___0 ; [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] tmp = isMethaneLevelCritical() [L60] COND FALSE !(\read(tmp)) [L76] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L733] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L735] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L741] tmp = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L658] COND FALSE !(\read(methaneLevelCritical)) [L661] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L462] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L634] COND TRUE waterLevel > 0 [L635] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L469] COND TRUE \read(systemActive) [L491] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L494] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L53] int tmp ; [L54] int tmp___0 ; [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L58] tmp = isMethaneLevelCritical() [L60] COND TRUE \read(tmp) [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L62] tmp___0 = isPumpRunning() [L64] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L65] COND FALSE !(\read(methAndRunningLastTime)) [L70] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L733] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L735] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L741] tmp = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L462] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L634] COND TRUE waterLevel > 0 [L635] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L469] COND TRUE \read(systemActive) [L491] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L494] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L53] int tmp ; [L54] int tmp___0 ; [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L58] tmp = isMethaneLevelCritical() [L60] COND TRUE \read(tmp) [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L62] tmp___0 = isPumpRunning() [L64] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L65] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L830] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 91 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.7s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 874 SDtfs, 1252 SDslu, 1873 SDs, 0 SdLazy, 222 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 689 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=11, 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, 11 MinimizatonAttempts, 986 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 660 ConstructedInterpolants, 0 QuantifiedInterpolants, 41110 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2171 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 28/28 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...