./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.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_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 b18fc9f0044b48e81511337a91deb94a0dfeec26 ...................................................................................................................................... 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_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 b18fc9f0044b48e81511337a91deb94a0dfeec26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 16:05:34,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:05:34,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:05:34,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:05:34,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:05:34,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:05:34,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:05:34,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:05:34,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:05:34,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:05:34,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:05:34,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:05:34,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:05:34,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:05:34,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:05:34,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:05:34,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:05:34,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:05:34,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:05:34,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:05:34,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:05:34,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:05:34,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:05:34,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:05:34,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:05:34,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:05:34,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:05:34,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:05:34,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:05:34,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:05:34,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:05:34,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:05:34,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:05:34,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:05:34,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:05:34,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:05:34,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:05:34,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:05:34,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:05:34,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:05:34,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:05:34,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 16:05:34,242 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:05:34,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:05:34,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:05:34,242 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:05:34,243 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:05:34,243 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:05:34,243 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 16:05:34,243 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:05:34,243 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:05:34,243 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 16:05:34,243 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 16:05:34,243 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:05:34,243 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 16:05:34,244 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 16:05:34,244 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 16:05:34,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:05:34,244 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:05:34,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:05:34,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:05:34,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:05:34,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:05:34,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:05:34,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:05:34,245 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:05:34,245 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:05:34,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:05:34,245 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:05:34,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:05:34,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:05:34,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:05:34,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:05:34,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:05:34,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:05:34,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:05:34,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:05:34,246 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 16:05:34,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:05:34,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:05:34,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:05:34,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:05:34,247 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_6aae1ead-743e-43ba-b446-c9a934249545/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 -> b18fc9f0044b48e81511337a91deb94a0dfeec26 [2019-12-07 16:05:34,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:05:34,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:05:34,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:05:34,360 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:05:34,360 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:05:34,361 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2019-12-07 16:05:34,402 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/data/281f44c05/3a2e7158f15b40b6b511759b233be8ab/FLAG30f0e4a19 [2019-12-07 16:05:34,848 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:05:34,849 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2019-12-07 16:05:34,856 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/data/281f44c05/3a2e7158f15b40b6b511759b233be8ab/FLAG30f0e4a19 [2019-12-07 16:05:34,865 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/data/281f44c05/3a2e7158f15b40b6b511759b233be8ab [2019-12-07 16:05:34,867 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:05:34,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:05:34,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:05:34,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:05:34,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:05:34,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:05:34" (1/1) ... [2019-12-07 16:05:34,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:34, skipping insertion in model container [2019-12-07 16:05:34,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:05:34" (1/1) ... [2019-12-07 16:05:34,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:05:34,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:05:35,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:05:35,129 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 16:05:35,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3df8ecb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:35, skipping insertion in model container [2019-12-07 16:05:35,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:05:35,130 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 16:05:35,132 INFO L168 Benchmark]: Toolchain (without parser) took 263.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:05:35,132 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 16:05:35,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:05:35,134 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 261.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 77]: 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 16:05:36,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:05:36,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:05:36,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:05:36,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:05:36,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:05:36,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:05:36,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:05:36,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:05:36,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:05:36,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:05:36,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:05:36,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:05:36,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:05:36,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:05:36,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:05:36,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:05:36,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:05:36,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:05:36,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:05:36,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:05:36,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:05:36,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:05:36,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:05:36,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:05:36,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:05:36,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:05:36,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:05:36,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:05:36,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:05:36,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:05:36,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:05:36,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:05:36,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:05:36,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:05:36,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:05:36,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:05:36,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:05:36,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:05:36,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:05:36,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:05:36,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 16:05:36,270 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:05:36,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:05:36,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:05:36,270 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:05:36,271 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:05:36,271 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:05:36,271 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:05:36,271 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:05:36,271 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:05:36,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:05:36,272 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:05:36,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:05:36,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:05:36,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:05:36,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:05:36,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:05:36,272 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:05:36,273 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:05:36,273 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:05:36,273 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:05:36,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:05:36,273 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:05:36,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:05:36,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:05:36,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:05:36,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:05:36,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:05:36,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:05:36,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:05:36,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:05:36,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:05:36,274 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 16:05:36,274 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:05:36,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:05:36,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:05:36,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:05:36,275 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_6aae1ead-743e-43ba-b446-c9a934249545/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 -> b18fc9f0044b48e81511337a91deb94a0dfeec26 [2019-12-07 16:05:36,435 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:05:36,442 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:05:36,445 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:05:36,446 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:05:36,446 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:05:36,446 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2019-12-07 16:05:36,483 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/data/887af4048/77d559f9b35e42a8b8de12faf6c42fc4/FLAGbe7022d81 [2019-12-07 16:05:36,882 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:05:36,883 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2019-12-07 16:05:36,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/data/887af4048/77d559f9b35e42a8b8de12faf6c42fc4/FLAGbe7022d81 [2019-12-07 16:05:37,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/data/887af4048/77d559f9b35e42a8b8de12faf6c42fc4 [2019-12-07 16:05:37,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:05:37,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:05:37,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:05:37,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:05:37,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:05:37,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:05:37" (1/1) ... [2019-12-07 16:05:37,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac71e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37, skipping insertion in model container [2019-12-07 16:05:37,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:05:37" (1/1) ... [2019-12-07 16:05:37,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:05:37,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:05:37,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:05:37,499 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 16:05:37,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:05:37,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:05:37,550 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:05:37,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:05:37,610 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:05:37,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37 WrapperNode [2019-12-07 16:05:37,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:05:37,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:05:37,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:05:37,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:05:37,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37" (1/1) ... [2019-12-07 16:05:37,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37" (1/1) ... [2019-12-07 16:05:37,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:05:37,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:05:37,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:05:37,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:05:37,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37" (1/1) ... [2019-12-07 16:05:37,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37" (1/1) ... [2019-12-07 16:05:37,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37" (1/1) ... [2019-12-07 16:05:37,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37" (1/1) ... [2019-12-07 16:05:37,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37" (1/1) ... [2019-12-07 16:05:37,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37" (1/1) ... [2019-12-07 16:05:37,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37" (1/1) ... [2019-12-07 16:05:37,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:05:37,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:05:37,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:05:37,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:05:37,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:37,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:05:37,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 16:05:37,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:05:37,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:05:38,219 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:05:38,219 INFO L287 CfgBuilder]: Removed 120 assume(true) statements. [2019-12-07 16:05:38,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:05:38 BoogieIcfgContainer [2019-12-07 16:05:38,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:05:38,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:05:38,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:05:38,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:05:38,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:05:37" (1/3) ... [2019-12-07 16:05:38,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3d118e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:05:38, skipping insertion in model container [2019-12-07 16:05:38,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:05:37" (2/3) ... [2019-12-07 16:05:38,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3d118e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:05:38, skipping insertion in model container [2019-12-07 16:05:38,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:05:38" (3/3) ... [2019-12-07 16:05:38,228 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2019-12-07 16:05:38,237 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:05:38,244 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 16:05:38,255 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 16:05:38,275 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:05:38,275 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:05:38,275 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:05:38,275 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:05:38,275 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:05:38,275 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:05:38,275 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:05:38,275 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:05:38,286 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2019-12-07 16:05:38,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 16:05:38,290 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:05:38,291 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:05:38,291 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:05:38,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:05:38,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1782116946, now seen corresponding path program 1 times [2019-12-07 16:05:38,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:05:38,303 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006453068] [2019-12-07 16:05:38,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:05:38,429 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 16:05:38,433 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:05:38,443 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 16:05:38,443 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:05:38,446 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 16:05:38,447 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006453068] [2019-12-07 16:05:38,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:05:38,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 16:05:38,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958515269] [2019-12-07 16:05:38,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:05:38,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:05:38,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:05:38,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:05:38,462 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2019-12-07 16:05:38,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:05:38,481 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2019-12-07 16:05:38,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:05:38,482 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 16:05:38,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:05:38,490 INFO L225 Difference]: With dead ends: 172 [2019-12-07 16:05:38,490 INFO L226 Difference]: Without dead ends: 85 [2019-12-07 16:05:38,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:05:38,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-12-07 16:05:38,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-12-07 16:05:38,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-12-07 16:05:38,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2019-12-07 16:05:38,522 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2019-12-07 16:05:38,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:05:38,522 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2019-12-07 16:05:38,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:05:38,522 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2019-12-07 16:05:38,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 16:05:38,523 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:05:38,523 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:05:38,724 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:05:38,725 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:05:38,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:05:38,726 INFO L82 PathProgramCache]: Analyzing trace with hash 735360049, now seen corresponding path program 1 times [2019-12-07 16:05:38,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:05:38,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920554152] [2019-12-07 16:05:38,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:05:38,870 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:05:38,872 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:05:38,885 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 16:05:38,885 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:05:38,893 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 16:05:38,894 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920554152] [2019-12-07 16:05:38,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:05:38,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 16:05:38,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540314182] [2019-12-07 16:05:38,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:05:38,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:05:38,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:05:38,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:05:38,896 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 4 states. [2019-12-07 16:05:38,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:05:38,910 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2019-12-07 16:05:38,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:05:38,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 16:05:38,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:05:38,911 INFO L225 Difference]: With dead ends: 85 [2019-12-07 16:05:38,912 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 16:05:38,913 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:05:38,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 16:05:38,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 16:05:38,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 16:05:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2019-12-07 16:05:38,918 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2019-12-07 16:05:38,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:05:38,919 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2019-12-07 16:05:38,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:05:38,919 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2019-12-07 16:05:38,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 16:05:38,920 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:05:38,920 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] [2019-12-07 16:05:39,120 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 16:05:39,121 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:05:39,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:05:39,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1297648259, now seen corresponding path program 1 times [2019-12-07 16:05:39,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:05:39,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863082941] [2019-12-07 16:05:39,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:05:39,220 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:05:39,221 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:05:39,228 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 16:05:39,228 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:05:39,233 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 16:05:39,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863082941] [2019-12-07 16:05:39,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:05:39,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 16:05:39,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652688505] [2019-12-07 16:05:39,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:05:39,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:05:39,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:05:39,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:05:39,235 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 4 states. [2019-12-07 16:05:39,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:05:39,280 INFO L93 Difference]: Finished difference Result 128 states and 187 transitions. [2019-12-07 16:05:39,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:05:39,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 16:05:39,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:05:39,281 INFO L225 Difference]: With dead ends: 128 [2019-12-07 16:05:39,281 INFO L226 Difference]: Without dead ends: 95 [2019-12-07 16:05:39,282 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:05:39,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-12-07 16:05:39,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 58. [2019-12-07 16:05:39,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-07 16:05:39,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2019-12-07 16:05:39,290 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 22 [2019-12-07 16:05:39,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:05:39,290 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2019-12-07 16:05:39,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:05:39,290 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2019-12-07 16:05:39,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 16:05:39,291 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:05:39,291 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] [2019-12-07 16:05:39,492 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 16:05:39,492 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:05:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:05:39,492 INFO L82 PathProgramCache]: Analyzing trace with hash -372126526, now seen corresponding path program 1 times [2019-12-07 16:05:39,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:05:39,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071985254] [2019-12-07 16:05:39,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:05:39,606 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:05:39,607 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:05:39,612 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 16:05:39,612 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:05:39,614 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 16:05:39,615 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071985254] [2019-12-07 16:05:39,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:05:39,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 16:05:39,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896297063] [2019-12-07 16:05:39,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:05:39,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:05:39,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:05:39,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:05:39,616 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 3 states. [2019-12-07 16:05:39,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:05:39,661 INFO L93 Difference]: Finished difference Result 131 states and 192 transitions. [2019-12-07 16:05:39,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:05:39,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 16:05:39,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:05:39,663 INFO L225 Difference]: With dead ends: 131 [2019-12-07 16:05:39,663 INFO L226 Difference]: Without dead ends: 79 [2019-12-07 16:05:39,663 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 16:05:39,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-12-07 16:05:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2019-12-07 16:05:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-12-07 16:05:39,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 109 transitions. [2019-12-07 16:05:39,671 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 109 transitions. Word has length 23 [2019-12-07 16:05:39,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:05:39,672 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 109 transitions. [2019-12-07 16:05:39,672 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:05:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 109 transitions. [2019-12-07 16:05:39,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 16:05:39,672 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:05:39,673 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 16:05:39,873 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 16:05:39,875 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:05:39,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:05:39,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1852423790, now seen corresponding path program 1 times [2019-12-07 16:05:39,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:05:39,877 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372684986] [2019-12-07 16:05:39,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:05:40,027 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:05:40,028 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:05:40,043 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 16:05:40,044 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:05:40,051 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 16:05:40,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372684986] [2019-12-07 16:05:40,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:05:40,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 16:05:40,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470399931] [2019-12-07 16:05:40,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:05:40,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:05:40,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:05:40,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:05:40,054 INFO L87 Difference]: Start difference. First operand 77 states and 109 transitions. Second operand 5 states. [2019-12-07 16:05:40,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:05:40,135 INFO L93 Difference]: Finished difference Result 371 states and 539 transitions. [2019-12-07 16:05:40,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 16:05:40,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 16:05:40,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:05:40,137 INFO L225 Difference]: With dead ends: 371 [2019-12-07 16:05:40,137 INFO L226 Difference]: Without dead ends: 300 [2019-12-07 16:05:40,138 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 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 16:05:40,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-12-07 16:05:40,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 140. [2019-12-07 16:05:40,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 16:05:40,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 196 transitions. [2019-12-07 16:05:40,153 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 196 transitions. Word has length 25 [2019-12-07 16:05:40,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:05:40,154 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 196 transitions. [2019-12-07 16:05:40,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:05:40,154 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 196 transitions. [2019-12-07 16:05:40,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 16:05:40,154 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:05:40,155 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] [2019-12-07 16:05:40,355 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 16:05:40,356 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:05:40,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:05:40,357 INFO L82 PathProgramCache]: Analyzing trace with hash -2056230884, now seen corresponding path program 1 times [2019-12-07 16:05:40,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:05:40,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456282999] [2019-12-07 16:05:40,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:05:40,486 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:05:40,488 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:05:40,500 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 16:05:40,500 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:05:40,503 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 16:05:40,503 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456282999] [2019-12-07 16:05:40,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:05:40,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 16:05:40,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709131422] [2019-12-07 16:05:40,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:05:40,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:05:40,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:05:40,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:05:40,505 INFO L87 Difference]: Start difference. First operand 140 states and 196 transitions. Second operand 5 states. [2019-12-07 16:05:40,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:05:40,646 INFO L93 Difference]: Finished difference Result 392 states and 553 transitions. [2019-12-07 16:05:40,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 16:05:40,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-12-07 16:05:40,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:05:40,648 INFO L225 Difference]: With dead ends: 392 [2019-12-07 16:05:40,648 INFO L226 Difference]: Without dead ends: 390 [2019-12-07 16:05:40,649 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 16:05:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2019-12-07 16:05:40,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 140. [2019-12-07 16:05:40,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 16:05:40,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 194 transitions. [2019-12-07 16:05:40,662 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 194 transitions. Word has length 26 [2019-12-07 16:05:40,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:05:40,662 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 194 transitions. [2019-12-07 16:05:40,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:05:40,662 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 194 transitions. [2019-12-07 16:05:40,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 16:05:40,663 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:05:40,663 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:05:40,864 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 16:05:40,864 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:05:40,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:05:40,864 INFO L82 PathProgramCache]: Analyzing trace with hash 437867349, now seen corresponding path program 1 times [2019-12-07 16:05:40,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:05:40,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843815880] [2019-12-07 16:05:40,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:05:40,957 INFO L264 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:05:40,958 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:05:40,971 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 16:05:40,971 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:05:40,973 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 16:05:40,973 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843815880] [2019-12-07 16:05:40,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:05:40,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 16:05:40,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273229774] [2019-12-07 16:05:40,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:05:40,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:05:40,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:05:40,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:05:40,974 INFO L87 Difference]: Start difference. First operand 140 states and 194 transitions. Second operand 5 states. [2019-12-07 16:05:41,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:05:41,020 INFO L93 Difference]: Finished difference Result 426 states and 588 transitions. [2019-12-07 16:05:41,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:05:41,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-07 16:05:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:05:41,022 INFO L225 Difference]: With dead ends: 426 [2019-12-07 16:05:41,022 INFO L226 Difference]: Without dead ends: 292 [2019-12-07 16:05:41,023 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 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 16:05:41,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2019-12-07 16:05:41,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 146. [2019-12-07 16:05:41,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-12-07 16:05:41,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 200 transitions. [2019-12-07 16:05:41,034 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 200 transitions. Word has length 33 [2019-12-07 16:05:41,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:05:41,034 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 200 transitions. [2019-12-07 16:05:41,034 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:05:41,034 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 200 transitions. [2019-12-07 16:05:41,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 16:05:41,035 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:05:41,035 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:05:41,236 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 16:05:41,236 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:05:41,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:05:41,237 INFO L82 PathProgramCache]: Analyzing trace with hash -148938665, now seen corresponding path program 1 times [2019-12-07 16:05:41,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:05:41,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748435304] [2019-12-07 16:05:41,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:05:41,405 INFO L264 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:05:41,407 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:05:41,416 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 16:05:41,416 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:05:41,426 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 16:05:41,426 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748435304] [2019-12-07 16:05:41,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:05:41,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 16:05:41,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133023598] [2019-12-07 16:05:41,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:05:41,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:05:41,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:05:41,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:05:41,427 INFO L87 Difference]: Start difference. First operand 146 states and 200 transitions. Second operand 6 states. [2019-12-07 16:05:41,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:05:41,472 INFO L93 Difference]: Finished difference Result 444 states and 606 transitions. [2019-12-07 16:05:41,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:05:41,473 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-07 16:05:41,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:05:41,475 INFO L225 Difference]: With dead ends: 444 [2019-12-07 16:05:41,475 INFO L226 Difference]: Without dead ends: 304 [2019-12-07 16:05:41,476 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 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 16:05:41,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-12-07 16:05:41,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 150. [2019-12-07 16:05:41,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-12-07 16:05:41,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 204 transitions. [2019-12-07 16:05:41,489 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 204 transitions. Word has length 33 [2019-12-07 16:05:41,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:05:41,489 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 204 transitions. [2019-12-07 16:05:41,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:05:41,490 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 204 transitions. [2019-12-07 16:05:41,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 16:05:41,490 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:05:41,491 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:05:41,691 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 16:05:41,691 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:05:41,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:05:41,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1428802343, now seen corresponding path program 1 times [2019-12-07 16:05:41,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:05:41,692 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666167589] [2019-12-07 16:05:41,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:05:41,783 INFO L264 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:05:41,784 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:05:41,789 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 16:05:41,789 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:05:41,795 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 16:05:41,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666167589] [2019-12-07 16:05:41,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:05:41,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 16:05:41,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505856072] [2019-12-07 16:05:41,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:05:41,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:05:41,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:05:41,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:05:41,797 INFO L87 Difference]: Start difference. First operand 150 states and 204 transitions. Second operand 4 states. [2019-12-07 16:05:41,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:05:41,847 INFO L93 Difference]: Finished difference Result 504 states and 688 transitions. [2019-12-07 16:05:41,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:05:41,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-12-07 16:05:41,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:05:41,850 INFO L225 Difference]: With dead ends: 504 [2019-12-07 16:05:41,850 INFO L226 Difference]: Without dead ends: 360 [2019-12-07 16:05:41,850 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 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 16:05:41,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2019-12-07 16:05:41,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 272. [2019-12-07 16:05:41,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2019-12-07 16:05:41,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 367 transitions. [2019-12-07 16:05:41,871 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 367 transitions. Word has length 33 [2019-12-07 16:05:41,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:05:41,871 INFO L462 AbstractCegarLoop]: Abstraction has 272 states and 367 transitions. [2019-12-07 16:05:41,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:05:41,871 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 367 transitions. [2019-12-07 16:05:41,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-07 16:05:41,872 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:05:41,872 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] [2019-12-07 16:05:42,073 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 16:05:42,074 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:05:42,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:05:42,075 INFO L82 PathProgramCache]: Analyzing trace with hash -271506405, now seen corresponding path program 1 times [2019-12-07 16:05:42,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:05:42,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098332898] [2019-12-07 16:05:42,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:05:42,198 INFO L264 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 16:05:42,199 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:05:42,219 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 16:05:42,219 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:05:42,245 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 16:05:42,245 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098332898] [2019-12-07 16:05:42,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:05:42,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 16:05:42,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460113785] [2019-12-07 16:05:42,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 16:05:42,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:05:42,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 16:05:42,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 16:05:42,246 INFO L87 Difference]: Start difference. First operand 272 states and 367 transitions. Second operand 10 states. [2019-12-07 16:05:42,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:05:42,595 INFO L93 Difference]: Finished difference Result 1200 states and 1600 transitions. [2019-12-07 16:05:42,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 16:05:42,596 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-12-07 16:05:42,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:05:42,601 INFO L225 Difference]: With dead ends: 1200 [2019-12-07 16:05:42,601 INFO L226 Difference]: Without dead ends: 934 [2019-12-07 16:05:42,602 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 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 16:05:42,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2019-12-07 16:05:42,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 272. [2019-12-07 16:05:42,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2019-12-07 16:05:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 360 transitions. [2019-12-07 16:05:42,637 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 360 transitions. Word has length 34 [2019-12-07 16:05:42,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:05:42,638 INFO L462 AbstractCegarLoop]: Abstraction has 272 states and 360 transitions. [2019-12-07 16:05:42,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 16:05:42,638 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 360 transitions. [2019-12-07 16:05:42,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-07 16:05:42,639 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:05:42,639 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] [2019-12-07 16:05:42,840 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 16:05:42,840 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:05:42,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:05:42,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1907454321, now seen corresponding path program 1 times [2019-12-07 16:05:42,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:05:42,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340280442] [2019-12-07 16:05:42,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/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 16:05:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:05:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:05:44,631 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 16:05:44,632 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:05:44,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 16:05:44,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:05:44 BoogieIcfgContainer [2019-12-07 16:05:44,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:05:44,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:05:44,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:05:44,956 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:05:44,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:05:38" (3/4) ... [2019-12-07 16:05:44,958 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 16:05:45,063 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6aae1ead-743e-43ba-b446-c9a934249545/bin/utaipan/witness.graphml [2019-12-07 16:05:45,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:05:45,065 INFO L168 Benchmark]: Toolchain (without parser) took 7819.09 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 298.8 MB). Free memory was 947.0 MB in the beginning and 1.3 GB in the end (delta: -344.1 MB). Peak memory consumption was 353.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:05:45,065 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 16:05:45,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:05:45,066 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.09 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:05:45,066 INFO L168 Benchmark]: Boogie Preprocessor took 33.76 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 16:05:45,066 INFO L168 Benchmark]: RCFGBuilder took 533.41 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: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:05:45,067 INFO L168 Benchmark]: TraceAbstraction took 6734.11 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.0 GB in the beginning and 811.7 MB in the end (delta: 219.2 MB). Peak memory consumption was 293.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:05:45,067 INFO L168 Benchmark]: Witness Printer took 107.34 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 95.9 MB). Free memory was 811.7 MB in the beginning and 1.3 GB in the end (delta: -479.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:05:45,069 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 364.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.09 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.76 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 533.41 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: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6734.11 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.0 GB in the beginning and 811.7 MB in the end (delta: 219.2 MB). Peak memory consumption was 293.1 MB. Max. memory is 11.5 GB. * Witness Printer took 107.34 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 95.9 MB). Free memory was 811.7 MB in the beginning and 1.3 GB in the end (delta: -479.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L498] int pumpRunning = 0; [L499] int systemActive = 1; [L693] int waterLevel = 1; [L694] int methaneLevelCritical = 0; [L851] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L924] int retValue_acc ; [L925] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] int retValue_acc ; [L845] retValue_acc = 1 [L846] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L931] tmp = valid_product() [L933] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] int splverifierCounter ; [L423] int tmp ; [L424] int tmp___0 ; [L425] int tmp___1 ; [L426] int tmp___2 ; [L429] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L439] tmp = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L711] COND TRUE waterLevel < 2 [L712] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L687] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L513] COND TRUE \read(systemActive) [L535] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L538] COND TRUE ! pumpRunning [L650] int retValue_acc ; [L651] int tmp ; [L652] int tmp___0 ; [L773] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L776] COND FALSE !(waterLevel < 2) [L780] retValue_acc = 0 [L781] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] tmp = isHighWaterSensorDry() [L658] COND FALSE !(\read(tmp)) [L661] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L663] retValue_acc = tmp___0 [L664] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L540] tmp = isHighWaterLevel() [L542] COND TRUE \read(tmp) [L569] int tmp ; [L594] int retValue_acc ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] retValue_acc = isMethaneLevelCritical() [L600] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L573] tmp = isMethaneAlarm() [L575] COND FALSE !(\read(tmp)) [L563] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L788] int tmp ; [L789] int tmp___0 ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L793] tmp = isMethaneLevelCritical() [L795] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L723] COND FALSE !(\read(methaneLevelCritical)) [L726] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L687] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L506] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L699] COND TRUE waterLevel > 0 [L700] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L513] COND TRUE \read(systemActive) [L535] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L538] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L788] int tmp ; [L789] int tmp___0 ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L793] tmp = isMethaneLevelCritical() [L795] COND TRUE \read(tmp) [L605] int retValue_acc ; [L608] retValue_acc = pumpRunning [L609] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L797] tmp___0 = isPumpRunning() [L799] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.5s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 881 SDtfs, 1332 SDslu, 2337 SDs, 0 SdLazy, 244 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 533 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 1499 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 504 ConstructedInterpolants, 0 QuantifiedInterpolants, 24408 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1908 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...