./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product11.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_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/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 024cd1c3d04a85b1ea51a85b80d9a485019f42aa ...................................................................................................................................... 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_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/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 024cd1c3d04a85b1ea51a85b80d9a485019f42aa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:21:05,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:21:05,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:21:05,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:21:05,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:21:05,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:21:05,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:21:05,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:21:05,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:21:05,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:21:05,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:21:05,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:21:05,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:21:05,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:21:05,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:21:05,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:21:05,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:21:05,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:21:05,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:21:05,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:21:05,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:21:05,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:21:05,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:21:05,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:21:05,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:21:05,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:21:05,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:21:05,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:21:05,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:21:05,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:21:05,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:21:05,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:21:05,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:21:05,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:21:05,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:21:05,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:21:05,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:21:05,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:21:05,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:21:05,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:21:05,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:21:05,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:21:05,141 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:21:05,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:21:05,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:21:05,141 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:21:05,142 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:21:05,142 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:21:05,142 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:21:05,142 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:21:05,142 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:21:05,142 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:21:05,142 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:21:05,143 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:21:05,143 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:21:05,143 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:21:05,143 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:21:05,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:21:05,144 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:21:05,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:21:05,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:21:05,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:21:05,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:21:05,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:21:05,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:21:05,145 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:21:05,145 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:21:05,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:21:05,145 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:21:05,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:21:05,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:21:05,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:21:05,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:21:05,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:21:05,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:21:05,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:21:05,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:21:05,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:21:05,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:21:05,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:21:05,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:21:05,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:21:05,147 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_504b4198-a259-4e68-9beb-ac0736f37765/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 -> 024cd1c3d04a85b1ea51a85b80d9a485019f42aa [2019-12-07 12:21:05,247 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:21:05,256 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:21:05,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:21:05,260 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:21:05,261 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:21:05,261 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2019-12-07 12:21:05,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/data/454a70d9c/e9e7edc7ebd447dc885ec5018fdea36f/FLAGf9ab2c7dc [2019-12-07 12:21:05,662 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:21:05,663 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2019-12-07 12:21:05,670 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/data/454a70d9c/e9e7edc7ebd447dc885ec5018fdea36f/FLAGf9ab2c7dc [2019-12-07 12:21:05,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/data/454a70d9c/e9e7edc7ebd447dc885ec5018fdea36f [2019-12-07 12:21:05,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:21:05,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:21:05,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:21:05,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:21:05,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:21:05,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:21:05" (1/1) ... [2019-12-07 12:21:05,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581b80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:05, skipping insertion in model container [2019-12-07 12:21:05,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:21:05" (1/1) ... [2019-12-07 12:21:05,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:21:05,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:21:05,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:21:05,927 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 12:21:05,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e2c4bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:05, skipping insertion in model container [2019-12-07 12:21:05,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:21:05,928 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 12:21:05,930 INFO L168 Benchmark]: Toolchain (without parser) took 247.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -156.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:21:05,930 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:21:05,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -156.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:21:05,932 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 245.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -156.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 245]: 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 12:21:07,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:21:07,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:21:07,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:21:07,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:21:07,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:21:07,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:21:07,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:21:07,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:21:07,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:21:07,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:21:07,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:21:07,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:21:07,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:21:07,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:21:07,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:21:07,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:21:07,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:21:07,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:21:07,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:21:07,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:21:07,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:21:07,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:21:07,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:21:07,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:21:07,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:21:07,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:21:07,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:21:07,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:21:07,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:21:07,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:21:07,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:21:07,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:21:07,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:21:07,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:21:07,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:21:07,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:21:07,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:21:07,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:21:07,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:21:07,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:21:07,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 12:21:07,130 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:21:07,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:21:07,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:21:07,131 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:21:07,131 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:21:07,131 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:21:07,131 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:21:07,132 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:21:07,132 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:21:07,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:21:07,132 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:21:07,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:21:07,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:21:07,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:21:07,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:21:07,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:21:07,133 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:21:07,133 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:21:07,133 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:21:07,134 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:21:07,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:21:07,134 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:21:07,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:21:07,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:21:07,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:21:07,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:21:07,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:21:07,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:21:07,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:21:07,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:21:07,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:21:07,135 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 12:21:07,135 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:21:07,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:21:07,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:21:07,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:21:07,136 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_504b4198-a259-4e68-9beb-ac0736f37765/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 -> 024cd1c3d04a85b1ea51a85b80d9a485019f42aa [2019-12-07 12:21:07,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:21:07,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:21:07,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:21:07,314 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:21:07,314 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:21:07,314 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2019-12-07 12:21:07,352 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/data/f3e4eb67d/faadaa80acae41e580be48407f9c13bd/FLAG9db9a80ec [2019-12-07 12:21:07,769 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:21:07,770 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2019-12-07 12:21:07,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/data/f3e4eb67d/faadaa80acae41e580be48407f9c13bd/FLAG9db9a80ec [2019-12-07 12:21:08,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/data/f3e4eb67d/faadaa80acae41e580be48407f9c13bd [2019-12-07 12:21:08,127 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:21:08,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:21:08,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:21:08,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:21:08,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:21:08,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:21:08" (1/1) ... [2019-12-07 12:21:08,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9aca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08, skipping insertion in model container [2019-12-07 12:21:08,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:21:08" (1/1) ... [2019-12-07 12:21:08,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:21:08,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:21:08,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:21:08,442 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 12:21:08,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:21:08,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:21:08,503 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:21:08,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:21:08,572 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:21:08,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08 WrapperNode [2019-12-07 12:21:08,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:21:08,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:21:08,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:21:08,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:21:08,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08" (1/1) ... [2019-12-07 12:21:08,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08" (1/1) ... [2019-12-07 12:21:08,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:21:08,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:21:08,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:21:08,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:21:08,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08" (1/1) ... [2019-12-07 12:21:08,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08" (1/1) ... [2019-12-07 12:21:08,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08" (1/1) ... [2019-12-07 12:21:08,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08" (1/1) ... [2019-12-07 12:21:08,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08" (1/1) ... [2019-12-07 12:21:08,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08" (1/1) ... [2019-12-07 12:21:08,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08" (1/1) ... [2019-12-07 12:21:08,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:21:08,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:21:08,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:21:08,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:21:08,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/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 12:21:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:21:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 12:21:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:21:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:21:09,159 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:21:09,159 INFO L287 CfgBuilder]: Removed 76 assume(true) statements. [2019-12-07 12:21:09,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:21:09 BoogieIcfgContainer [2019-12-07 12:21:09,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:21:09,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:21:09,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:21:09,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:21:09,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:21:08" (1/3) ... [2019-12-07 12:21:09,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed591fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:21:09, skipping insertion in model container [2019-12-07 12:21:09,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:21:08" (2/3) ... [2019-12-07 12:21:09,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed591fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:21:09, skipping insertion in model container [2019-12-07 12:21:09,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:21:09" (3/3) ... [2019-12-07 12:21:09,165 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2019-12-07 12:21:09,171 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:21:09,177 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 12:21:09,184 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 12:21:09,200 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:21:09,200 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:21:09,200 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:21:09,201 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:21:09,201 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:21:09,201 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:21:09,201 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:21:09,201 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:21:09,211 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2019-12-07 12:21:09,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 12:21:09,215 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:21:09,216 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 12:21:09,216 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:21:09,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:21:09,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1892552075, now seen corresponding path program 1 times [2019-12-07 12:21:09,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:21:09,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435963004] [2019-12-07 12:21:09,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/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 12:21:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:21:09,357 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 12:21:09,361 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:21:09,371 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 12:21:09,372 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:21:09,375 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 12:21:09,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435963004] [2019-12-07 12:21:09,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:21:09,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 12:21:09,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793770524] [2019-12-07 12:21:09,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:21:09,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:21:09,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:21:09,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:21:09,391 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2019-12-07 12:21:09,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:21:09,408 INFO L93 Difference]: Finished difference Result 124 states and 185 transitions. [2019-12-07 12:21:09,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:21:09,409 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 12:21:09,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:21:09,416 INFO L225 Difference]: With dead ends: 124 [2019-12-07 12:21:09,416 INFO L226 Difference]: Without dead ends: 61 [2019-12-07 12:21:09,419 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 12:21:09,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-12-07 12:21:09,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-12-07 12:21:09,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-12-07 12:21:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2019-12-07 12:21:09,446 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2019-12-07 12:21:09,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:21:09,446 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2019-12-07 12:21:09,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:21:09,446 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2019-12-07 12:21:09,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 12:21:09,447 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:21:09,447 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 12:21:09,648 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:21:09,649 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:21:09,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:21:09,650 INFO L82 PathProgramCache]: Analyzing trace with hash 177187266, now seen corresponding path program 1 times [2019-12-07 12:21:09,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:21:09,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363833613] [2019-12-07 12:21:09,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/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 12:21:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:21:09,842 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:21:09,844 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:21:09,859 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 12:21:09,859 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:21:09,867 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 12:21:09,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363833613] [2019-12-07 12:21:09,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:21:09,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:21:09,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834373670] [2019-12-07 12:21:09,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:21:09,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:21:09,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:21:09,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:21:09,870 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 4 states. [2019-12-07 12:21:09,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:21:09,879 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2019-12-07 12:21:09,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:21:09,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 12:21:09,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:21:09,880 INFO L225 Difference]: With dead ends: 61 [2019-12-07 12:21:09,880 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 12:21:09,881 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 12:21:09,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 12:21:09,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 12:21:09,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 12:21:09,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2019-12-07 12:21:09,884 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2019-12-07 12:21:09,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:21:09,885 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2019-12-07 12:21:09,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:21:09,885 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2019-12-07 12:21:09,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 12:21:09,885 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:21:09,885 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 12:21:10,086 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:21:10,086 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:21:10,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:21:10,087 INFO L82 PathProgramCache]: Analyzing trace with hash 755880693, now seen corresponding path program 1 times [2019-12-07 12:21:10,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:21:10,088 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015925179] [2019-12-07 12:21:10,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/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 12:21:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:21:10,271 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:21:10,273 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:21:10,280 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 12:21:10,281 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:21:10,287 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 12:21:10,288 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015925179] [2019-12-07 12:21:10,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:21:10,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 12:21:10,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773735192] [2019-12-07 12:21:10,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:21:10,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:21:10,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:21:10,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:21:10,290 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 4 states. [2019-12-07 12:21:10,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:21:10,310 INFO L93 Difference]: Finished difference Result 106 states and 154 transitions. [2019-12-07 12:21:10,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:21:10,310 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 12:21:10,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:21:10,312 INFO L225 Difference]: With dead ends: 106 [2019-12-07 12:21:10,312 INFO L226 Difference]: Without dead ends: 81 [2019-12-07 12:21:10,312 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 12:21:10,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-12-07 12:21:10,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 52. [2019-12-07 12:21:10,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-07 12:21:10,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2019-12-07 12:21:10,323 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2019-12-07 12:21:10,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:21:10,324 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2019-12-07 12:21:10,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:21:10,324 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2019-12-07 12:21:10,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 12:21:10,325 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:21:10,325 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 12:21:10,525 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:21:10,526 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:21:10,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:21:10,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1883276786, now seen corresponding path program 1 times [2019-12-07 12:21:10,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:21:10,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784864096] [2019-12-07 12:21:10,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/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 12:21:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:21:10,654 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:21:10,656 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:21:10,671 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 12:21:10,671 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:21:10,702 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 12:21:10,702 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784864096] [2019-12-07 12:21:10,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:21:10,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 12:21:10,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813997543] [2019-12-07 12:21:10,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:21:10,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:21:10,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:21:10,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:21:10,703 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 8 states. [2019-12-07 12:21:10,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:21:10,937 INFO L93 Difference]: Finished difference Result 506 states and 780 transitions. [2019-12-07 12:21:10,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 12:21:10,938 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2019-12-07 12:21:10,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:21:10,942 INFO L225 Difference]: With dead ends: 506 [2019-12-07 12:21:10,942 INFO L226 Difference]: Without dead ends: 460 [2019-12-07 12:21:10,943 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 12:21:10,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2019-12-07 12:21:10,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 130. [2019-12-07 12:21:10,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-12-07 12:21:10,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2019-12-07 12:21:10,968 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 24 [2019-12-07 12:21:10,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:21:10,969 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2019-12-07 12:21:10,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:21:10,969 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2019-12-07 12:21:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:21:10,970 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:21:10,970 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 12:21:11,171 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 12:21:11,171 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:21:11,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:21:11,172 INFO L82 PathProgramCache]: Analyzing trace with hash -535231376, now seen corresponding path program 1 times [2019-12-07 12:21:11,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:21:11,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205680496] [2019-12-07 12:21:11,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/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 12:21:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:21:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:21:12,498 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 12:21:12,498 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:21:12,698 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 12:21:12,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:21:12 BoogieIcfgContainer [2019-12-07 12:21:12,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:21:12,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:21:12,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:21:12,777 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:21:12,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:21:09" (3/4) ... [2019-12-07 12:21:12,778 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:21:12,833 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_504b4198-a259-4e68-9beb-ac0736f37765/bin/utaipan/witness.graphml [2019-12-07 12:21:12,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:21:12,834 INFO L168 Benchmark]: Toolchain (without parser) took 4706.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 945.7 MB in the beginning and 811.0 MB in the end (delta: 134.7 MB). Peak memory consumption was 263.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:21:12,834 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 12:21:12,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:21:12,835 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.72 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 12:21:12,835 INFO L168 Benchmark]: Boogie Preprocessor took 26.05 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 12:21:12,836 INFO L168 Benchmark]: RCFGBuilder took 516.40 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: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:21:12,836 INFO L168 Benchmark]: TraceAbstraction took 3615.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 824.5 MB in the end (delta: 212.9 MB). Peak memory consumption was 212.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:21:12,836 INFO L168 Benchmark]: Witness Printer took 56.53 ms. Allocated memory is still 1.2 GB. Free memory was 824.5 MB in the beginning and 811.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:21:12,838 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 444.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.72 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. * Boogie Preprocessor took 26.05 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. * RCFGBuilder took 516.40 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: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3615.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 824.5 MB in the end (delta: 212.9 MB). Peak memory consumption was 212.9 MB. Max. memory is 11.5 GB. * Witness Printer took 56.53 ms. Allocated memory is still 1.2 GB. Free memory was 824.5 MB in the beginning and 811.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L78] int cleanupTimeShifts = 4; [L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L804] int waterLevel = 1; [L805] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] int retValue_acc ; [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] tmp = valid_product() [L168] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L729] int splverifierCounter ; [L730] int tmp ; [L731] int tmp___0 ; [L732] int tmp___1 ; [L733] int tmp___2 ; [L736] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L738] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L740] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L746] tmp = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L822] COND TRUE waterLevel < 2 [L823] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] tmp___0 = __VERIFIER_nondet_int() [L758] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] tmp___2 = __VERIFIER_nondet_int() [L768] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L843] int retValue_acc ; [L846] retValue_acc = methaneLevelCritical [L847] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L875] int retValue_acc ; [L878] retValue_acc = waterLevel [L879] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L668] int retValue_acc ; [L671] retValue_acc = pumpRunning [L672] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 240 SDtfs, 541 SDslu, 528 SDs, 0 SdLazy, 104 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 359 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 9857 SizeOfPredicates, 6 NumberOfNonLiveVariables, 733 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...