./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i --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_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/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 e27663c9ca825ef4f206fc44ba9585924dd6c43d ...................................................................................................................................... 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_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/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 e27663c9ca825ef4f206fc44ba9585924dd6c43d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:50:13,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:50:13,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:50:13,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:50:13,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:50:13,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:50:13,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:50:13,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:50:13,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:50:13,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:50:13,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:50:13,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:50:13,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:50:13,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:50:13,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:50:13,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:50:13,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:50:13,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:50:13,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:50:13,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:50:13,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:50:13,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:50:13,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:50:13,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:50:13,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:50:13,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:50:13,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:50:13,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:50:13,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:50:13,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:50:13,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:50:13,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:50:13,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:50:13,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:50:13,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:50:13,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:50:13,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:50:13,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:50:13,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:50:13,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:50:13,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:50:13,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 16:50:13,274 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:50:13,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:50:13,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:50:13,276 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:50:13,276 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:50:13,276 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:50:13,276 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 16:50:13,276 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:50:13,277 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:50:13,277 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 16:50:13,277 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 16:50:13,277 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:50:13,277 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 16:50:13,278 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 16:50:13,278 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 16:50:13,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:50:13,279 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:50:13,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:50:13,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:50:13,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:50:13,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:50:13,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:50:13,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:50:13,280 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:50:13,280 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:50:13,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:50:13,280 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:50:13,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:50:13,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:50:13,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:50:13,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:50:13,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:50:13,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:50:13,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:50:13,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:50:13,282 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 16:50:13,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:50:13,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:50:13,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:50:13,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:50:13,283 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_e14d4367-8db5-410a-875c-670012c9bf6a/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 -> e27663c9ca825ef4f206fc44ba9585924dd6c43d [2019-12-07 16:50:13,393 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:50:13,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:50:13,406 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:50:13,408 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:50:13,408 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:50:13,409 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2019-12-07 16:50:13,458 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/data/690b3ba8d/05d4808ba6ed4dd29ced109ad6386b28/FLAG504b1c004 [2019-12-07 16:50:13,882 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:50:13,883 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2019-12-07 16:50:13,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/data/690b3ba8d/05d4808ba6ed4dd29ced109ad6386b28/FLAG504b1c004 [2019-12-07 16:50:14,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/data/690b3ba8d/05d4808ba6ed4dd29ced109ad6386b28 [2019-12-07 16:50:14,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:50:14,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:50:14,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:50:14,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:50:14,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:50:14,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:50:14" (1/1) ... [2019-12-07 16:50:14,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473868ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:14, skipping insertion in model container [2019-12-07 16:50:14,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:50:14" (1/1) ... [2019-12-07 16:50:14,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:50:14,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:50:14,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:50:14,520 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 16:50:14,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43922edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:14, skipping insertion in model container [2019-12-07 16:50:14,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:50:14,521 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 16:50:14,523 INFO L168 Benchmark]: Toolchain (without parser) took 285.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:50:14,523 INFO L168 Benchmark]: CDTParser took 0.18 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 16:50:14,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:50:14,525 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 282.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 628]: 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 16:50:15,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:50:15,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:50:15,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:50:15,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:50:15,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:50:15,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:50:15,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:50:15,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:50:15,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:50:15,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:50:15,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:50:15,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:50:15,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:50:15,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:50:15,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:50:15,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:50:15,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:50:15,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:50:15,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:50:15,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:50:15,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:50:15,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:50:15,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:50:15,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:50:15,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:50:15,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:50:15,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:50:15,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:50:15,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:50:15,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:50:15,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:50:15,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:50:15,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:50:15,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:50:15,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:50:15,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:50:15,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:50:15,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:50:15,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:50:15,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:50:15,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 16:50:15,704 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:50:15,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:50:15,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:50:15,704 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:50:15,705 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:50:15,705 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:50:15,705 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:50:15,705 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:50:15,705 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:50:15,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:50:15,706 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:50:15,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:50:15,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:50:15,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:50:15,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:50:15,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:50:15,706 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:50:15,707 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:50:15,707 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:50:15,707 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:50:15,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:50:15,707 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:50:15,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:50:15,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:50:15,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:50:15,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:50:15,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:50:15,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:50:15,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:50:15,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:50:15,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:50:15,708 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 16:50:15,708 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:50:15,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:50:15,709 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:50:15,709 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:50:15,709 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_e14d4367-8db5-410a-875c-670012c9bf6a/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 -> e27663c9ca825ef4f206fc44ba9585924dd6c43d [2019-12-07 16:50:15,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:50:15,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:50:15,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:50:15,892 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:50:15,892 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:50:15,893 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2019-12-07 16:50:15,932 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/data/cfb569388/d71460ef561e4900aa326032629057f6/FLAG6f1c0166c [2019-12-07 16:50:16,320 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:50:16,321 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2019-12-07 16:50:16,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/data/cfb569388/d71460ef561e4900aa326032629057f6/FLAG6f1c0166c [2019-12-07 16:50:16,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/data/cfb569388/d71460ef561e4900aa326032629057f6 [2019-12-07 16:50:16,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:50:16,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:50:16,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:50:16,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:50:16,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:50:16,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:50:16" (1/1) ... [2019-12-07 16:50:16,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@576048d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16, skipping insertion in model container [2019-12-07 16:50:16,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:50:16" (1/1) ... [2019-12-07 16:50:16,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:50:16,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:50:16,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:50:16,621 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 16:50:16,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:50:16,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:50:16,660 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:50:16,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:50:16,732 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:50:16,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16 WrapperNode [2019-12-07 16:50:16,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:50:16,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:50:16,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:50:16,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:50:16,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16" (1/1) ... [2019-12-07 16:50:16,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16" (1/1) ... [2019-12-07 16:50:16,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:50:16,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:50:16,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:50:16,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:50:16,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16" (1/1) ... [2019-12-07 16:50:16,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16" (1/1) ... [2019-12-07 16:50:16,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16" (1/1) ... [2019-12-07 16:50:16,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16" (1/1) ... [2019-12-07 16:50:16,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16" (1/1) ... [2019-12-07 16:50:16,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16" (1/1) ... [2019-12-07 16:50:16,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16" (1/1) ... [2019-12-07 16:50:16,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:50:16,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:50:16,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:50:16,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:50:16,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/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 16:50:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 16:50:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 16:50:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:50:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 16:50:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:50:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 16:50:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:50:16,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:50:17,296 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:50:17,296 INFO L287 CfgBuilder]: Removed 55 assume(true) statements. [2019-12-07 16:50:17,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:50:17 BoogieIcfgContainer [2019-12-07 16:50:17,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:50:17,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:50:17,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:50:17,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:50:17,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:50:16" (1/3) ... [2019-12-07 16:50:17,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2323eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:50:17, skipping insertion in model container [2019-12-07 16:50:17,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:50:16" (2/3) ... [2019-12-07 16:50:17,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2323eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:50:17, skipping insertion in model container [2019-12-07 16:50:17,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:50:17" (3/3) ... [2019-12-07 16:50:17,302 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-2.i [2019-12-07 16:50:17,308 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:50:17,313 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 16:50:17,320 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 16:50:17,336 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:50:17,336 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:50:17,336 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:50:17,336 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:50:17,337 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:50:17,337 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:50:17,337 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:50:17,337 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:50:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2019-12-07 16:50:17,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 16:50:17,352 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:50:17,352 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:50:17,353 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:50:17,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:50:17,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1088394025, now seen corresponding path program 1 times [2019-12-07 16:50:17,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:50:17,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640642743] [2019-12-07 16:50:17,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/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 16:50:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:50:17,443 INFO L264 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 16:50:17,447 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:50:17,456 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 16:50:17,457 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:50:17,459 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 16:50:17,460 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640642743] [2019-12-07 16:50:17,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:50:17,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 16:50:17,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139121124] [2019-12-07 16:50:17,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:50:17,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:50:17,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:50:17,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:50:17,476 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2019-12-07 16:50:17,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:50:17,491 INFO L93 Difference]: Finished difference Result 105 states and 145 transitions. [2019-12-07 16:50:17,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:50:17,492 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 16:50:17,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:50:17,499 INFO L225 Difference]: With dead ends: 105 [2019-12-07 16:50:17,499 INFO L226 Difference]: Without dead ends: 52 [2019-12-07 16:50:17,501 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 16:50:17,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-12-07 16:50:17,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-12-07 16:50:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-07 16:50:17,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2019-12-07 16:50:17,526 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 11 [2019-12-07 16:50:17,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:50:17,527 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-12-07 16:50:17,527 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:50:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2019-12-07 16:50:17,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 16:50:17,527 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:50:17,528 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:50:17,728 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:50:17,729 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:50:17,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:50:17,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1205370039, now seen corresponding path program 1 times [2019-12-07 16:50:17,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:50:17,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353947823] [2019-12-07 16:50:17,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/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 16:50:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:50:17,816 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 16:50:17,817 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:50:17,880 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-12-07 16:50:17,881 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:50:17,893 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:50:17,896 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-12-07 16:50:17,897 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 16:50:17,904 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:50:17,904 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:50:17,905 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:12 [2019-12-07 16:50:17,918 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 16:50:17,918 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:50:17,953 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 16:50:17,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353947823] [2019-12-07 16:50:17,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:50:17,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 16:50:17,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487334974] [2019-12-07 16:50:17,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:50:17,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:50:17,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:50:17,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:50:17,955 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand 6 states. [2019-12-07 16:50:18,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:50:18,502 INFO L93 Difference]: Finished difference Result 108 states and 131 transitions. [2019-12-07 16:50:18,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:50:18,503 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-12-07 16:50:18,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:50:18,504 INFO L225 Difference]: With dead ends: 108 [2019-12-07 16:50:18,504 INFO L226 Difference]: Without dead ends: 64 [2019-12-07 16:50:18,505 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 16:50:18,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-12-07 16:50:18,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2019-12-07 16:50:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-12-07 16:50:18,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2019-12-07 16:50:18,514 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 11 [2019-12-07 16:50:18,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:50:18,515 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2019-12-07 16:50:18,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:50:18,515 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2019-12-07 16:50:18,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 16:50:18,516 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:50:18,516 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:50:18,716 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 16:50:18,717 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:50:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:50:18,717 INFO L82 PathProgramCache]: Analyzing trace with hash 693272121, now seen corresponding path program 1 times [2019-12-07 16:50:18,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:50:18,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583788148] [2019-12-07 16:50:18,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/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 16:50:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:50:18,798 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 16:50:18,799 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:50:18,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:50:18,837 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 16:50:18,837 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:50:18,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:50:18,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583788148] [2019-12-07 16:50:18,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:50:18,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 16:50:18,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068911117] [2019-12-07 16:50:18,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 16:50:18,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:50:18,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 16:50:18,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 16:50:18,870 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand 9 states. [2019-12-07 16:50:19,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:50:19,355 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2019-12-07 16:50:19,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:50:19,356 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2019-12-07 16:50:19,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:50:19,357 INFO L225 Difference]: With dead ends: 64 [2019-12-07 16:50:19,357 INFO L226 Difference]: Without dead ends: 54 [2019-12-07 16:50:19,358 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-12-07 16:50:19,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-12-07 16:50:19,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2019-12-07 16:50:19,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-12-07 16:50:19,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2019-12-07 16:50:19,363 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 13 [2019-12-07 16:50:19,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:50:19,363 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2019-12-07 16:50:19,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 16:50:19,363 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2019-12-07 16:50:19,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 16:50:19,364 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:50:19,364 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:50:19,565 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 16:50:19,566 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:50:19,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:50:19,566 INFO L82 PathProgramCache]: Analyzing trace with hash 744266300, now seen corresponding path program 1 times [2019-12-07 16:50:19,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:50:19,567 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991136554] [2019-12-07 16:50:19,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/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 16:50:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:50:19,659 INFO L264 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 16:50:19,660 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:50:19,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 16:50:19,667 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:50:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 16:50:19,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991136554] [2019-12-07 16:50:19,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:50:19,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 16:50:19,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084164429] [2019-12-07 16:50:19,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:50:19,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:50:19,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:50:19,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:50:19,671 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand 4 states. [2019-12-07 16:50:19,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:50:19,716 INFO L93 Difference]: Finished difference Result 85 states and 100 transitions. [2019-12-07 16:50:19,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:50:19,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-12-07 16:50:19,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:50:19,718 INFO L225 Difference]: With dead ends: 85 [2019-12-07 16:50:19,718 INFO L226 Difference]: Without dead ends: 83 [2019-12-07 16:50:19,718 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:50:19,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-12-07 16:50:19,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 55. [2019-12-07 16:50:19,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-12-07 16:50:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2019-12-07 16:50:19,724 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 15 [2019-12-07 16:50:19,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:50:19,725 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2019-12-07 16:50:19,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:50:19,725 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2019-12-07 16:50:19,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 16:50:19,726 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:50:19,726 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:50:19,926 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 16:50:19,927 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:50:19,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:50:19,928 INFO L82 PathProgramCache]: Analyzing trace with hash 745875014, now seen corresponding path program 1 times [2019-12-07 16:50:19,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:50:19,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548248328] [2019-12-07 16:50:19,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/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 16:50:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:50:20,067 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 36 conjunts are in the unsatisfiable core [2019-12-07 16:50:20,069 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:50:20,083 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2019-12-07 16:50:20,084 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-12-07 16:50:20,156 INFO L614 ElimStorePlain]: treesize reduction 14, result has 71.4 percent of original size [2019-12-07 16:50:20,157 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:50:20,157 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:35 [2019-12-07 16:50:20,227 INFO L430 ElimStorePlain]: Different costs {8=[|v_#memory_$Pointer$.offset_36|], 18=[|v_#memory_$Pointer$.base_36|]} [2019-12-07 16:50:20,253 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 16:50:20,279 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 16:50:20,779 WARN L192 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2019-12-07 16:50:20,780 INFO L343 Elim1Store]: treesize reduction 88, result has 60.2 percent of original size [2019-12-07 16:50:20,781 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 150 [2019-12-07 16:50:20,782 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:50:21,858 WARN L192 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-12-07 16:50:21,858 INFO L614 ElimStorePlain]: treesize reduction 59, result has 80.2 percent of original size [2019-12-07 16:50:21,873 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 16:50:21,875 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 16:51:19,075 WARN L192 SmtUtils]: Spent 57.18 s on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-12-07 16:51:19,075 INFO L343 Elim1Store]: treesize reduction 176, result has 52.4 percent of original size [2019-12-07 16:51:19,076 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 174 treesize of output 240 [2019-12-07 16:51:19,077 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 16:51:37,724 WARN L192 SmtUtils]: Spent 18.65 s on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2019-12-07 16:51:37,725 INFO L614 ElimStorePlain]: treesize reduction 113, result has 60.8 percent of original size [2019-12-07 16:51:37,727 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,730 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,731 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,732 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,735 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,738 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,742 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,742 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,745 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,747 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,750 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,753 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,757 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,758 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,761 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,768 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,780 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,789 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,792 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,794 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,795 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,800 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,800 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,805 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,806 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,809 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,811 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,814 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,816 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,818 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,820 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,823 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,826 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,829 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,830 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,833 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,835 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,837 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,839 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,842 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,844 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,852 INFO L534 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-12-07 16:51:37,852 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 9 variables, input treesize:268, output treesize:253 [2019-12-07 16:51:37,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,853 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,853 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,873 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,875 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,876 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,877 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,900 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,907 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:37,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,919 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,923 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:37,924 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,009 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,010 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,011 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,013 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,027 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,029 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,032 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,036 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,037 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,039 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,040 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,041 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,054 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,054 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,057 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,058 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,060 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,063 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,065 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,065 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,067 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,067 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,068 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,069 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,071 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,071 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,073 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,075 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,076 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,077 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,078 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,080 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,081 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:51:38,082 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,082 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,084 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,086 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,087 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,089 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,090 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 16:51:38,093 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-12-07 17:00:42,176 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-12-07 17:00:42,176 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548248328] [2019-12-07 17:00:42,177 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2019-12-07 17:00:42,177 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1123140509] [2019-12-07 17:00:42,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 17:00:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:00:42,366 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 38 conjunts are in the unsatisfiable core [2019-12-07 17:00:42,368 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:00:42,369 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken [2019-12-07 17:00:42,370 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013019771] [2019-12-07 17:00:42,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e14d4367-8db5-410a-875c-670012c9bf6a/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:00:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:00:42,433 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 34 conjunts are in the unsatisfiable core [2019-12-07 17:00:42,434 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:00:42,435 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.IncrementalPlicationChecker@60f94f94 [2019-12-07 17:00:42,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:00:42,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2019-12-07 17:00:42,435 ERROR L206 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2019-12-07 17:00:42,435 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:00:43,039 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk,6 mathsat -unsat_core_generation=3,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:00:43,056 WARN L229 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-12-07 17:00:43,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:00:43 BoogieIcfgContainer [2019-12-07 17:00:43,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:00:43,057 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:00:43,057 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:00:43,057 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:00:43,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:50:17" (3/4) ... [2019-12-07 17:00:43,059 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:00:43,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:00:43,060 INFO L168 Benchmark]: Toolchain (without parser) took 626718.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 945.6 MB in the beginning and 940.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 207.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:00:43,061 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 17:00:43,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:00:43,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:00:43,062 INFO L168 Benchmark]: Boogie Preprocessor took 34.53 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 17:00:43,062 INFO L168 Benchmark]: RCFGBuilder took 488.86 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: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:00:43,063 INFO L168 Benchmark]: TraceAbstraction took 625758.37 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.7 MB). Free memory was 1.0 GB in the beginning and 940.7 MB in the end (delta: 99.0 MB). Peak memory consumption was 168.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:00:43,063 INFO L168 Benchmark]: Witness Printer took 2.96 ms. Allocated memory is still 1.2 GB. Free memory is still 940.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:00:43,065 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 390.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.53 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 488.86 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: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 625758.37 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.7 MB). Free memory was 1.0 GB in the beginning and 940.7 MB in the end (delta: 99.0 MB). Peak memory consumption was 168.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.96 ms. Allocated memory is still 1.2 GB. Free memory is still 940.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 659]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L655] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; [L673] struct ldv_list_head drvlist = { &(drvlist), &(drvlist) }; [L677] int i; [L678] int N = __VERIFIER_nondet_int(); [L679] i=0 [L679] COND TRUE inext [L586] next->prev = new [L587] new->next = next [L588] new->prev = prev [L589] prev->next = new [L679] i++ [L679] COND FALSE !(inext [L684] const typeof( ((typeof(*me) *)0)->list ) *__mptr = ((&drvlist)->next); [L684] me = ({ const typeof( ((typeof(*me) *)0)->list ) *__mptr = ((&drvlist)->next); (typeof(*me) *)( (char *)__mptr - ((size_t) &((typeof(*me) *)0)->list) );}) [L684] COND TRUE &me->list != (&drvlist) [L644] struct ldv_list_element *m; [L645] EXPR (s)->next [L645] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L645] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L645] COND TRUE &m->list != (s) [L646] EXPR m->e [L646] COND TRUE m->e == e [L647] return 1; [L659] COND TRUE ldv_is_in_set(m, &mutexes) [L659] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 3 error locations. Result: UNKNOWN, OverallTime: 625.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 250 SDtfs, 60 SDslu, 611 SDs, 0 SdLazy, 154 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 5514 SizeOfPredicates, 23 NumberOfNonLiveVariables, 259 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 2/2 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...