./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/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 764a558f84753bff2f3381f04a56ebf221297041 ...................................................................................................................................... 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_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/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 764a558f84753bff2f3381f04a56ebf221297041 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:07:41,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:07:41,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:07:41,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:07:41,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:07:41,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:07:41,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:07:41,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:07:41,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:07:41,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:07:41,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:07:41,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:07:41,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:07:41,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:07:41,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:07:41,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:07:41,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:07:41,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:07:41,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:07:41,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:07:41,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:07:41,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:07:41,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:07:41,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:07:41,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:07:41,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:07:41,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:07:41,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:07:41,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:07:41,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:07:41,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:07:41,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:07:41,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:07:41,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:07:41,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:07:41,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:07:41,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:07:41,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:07:41,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:07:41,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:07:41,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:07:41,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:07:41,259 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:07:41,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:07:41,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:07:41,260 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:07:41,260 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:07:41,260 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:07:41,260 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:07:41,261 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:07:41,261 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:07:41,261 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:07:41,261 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:07:41,261 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:07:41,261 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:07:41,261 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:07:41,262 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:07:41,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:07:41,262 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:07:41,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:07:41,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:07:41,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:07:41,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:07:41,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:07:41,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:07:41,263 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:07:41,263 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:07:41,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:07:41,263 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:07:41,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:07:41,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:07:41,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:07:41,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:07:41,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:07:41,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:07:41,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:07:41,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:07:41,264 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:07:41,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:07:41,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:07:41,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:07:41,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:07:41,265 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_b78953e7-c787-4478-b36d-d2e4b3729b0f/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 -> 764a558f84753bff2f3381f04a56ebf221297041 [2019-12-07 20:07:41,364 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:07:41,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:07:41,377 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:07:41,379 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:07:41,379 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:07:41,380 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2019-12-07 20:07:41,427 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/data/b0f7ed3c9/d809a992b18d443382359abd4441609b/FLAGf0be1d234 [2019-12-07 20:07:41,806 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:07:41,807 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2019-12-07 20:07:41,816 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/data/b0f7ed3c9/d809a992b18d443382359abd4441609b/FLAGf0be1d234 [2019-12-07 20:07:42,200 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/data/b0f7ed3c9/d809a992b18d443382359abd4441609b [2019-12-07 20:07:42,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:07:42,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:07:42,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:07:42,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:07:42,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:07:42,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:07:42" (1/1) ... [2019-12-07 20:07:42,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a368b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:42, skipping insertion in model container [2019-12-07 20:07:42,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:07:42" (1/1) ... [2019-12-07 20:07:42,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:07:42,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:07:42,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:07:42,475 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 20:07:42,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3194bbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:42, skipping insertion in model container [2019-12-07 20:07:42,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:07:42,476 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:07:42,478 INFO L168 Benchmark]: Toolchain (without parser) took 273.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.2 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:07:42,478 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:07:42,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -144.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:07:42,480 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -144.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 563]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 20:07:43,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:07:43,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:07:43,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:07:43,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:07:43,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:07:43,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:07:43,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:07:43,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:07:43,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:07:43,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:07:43,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:07:43,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:07:43,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:07:43,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:07:43,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:07:43,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:07:43,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:07:43,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:07:43,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:07:43,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:07:43,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:07:43,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:07:43,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:07:43,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:07:43,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:07:43,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:07:43,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:07:43,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:07:43,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:07:43,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:07:43,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:07:43,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:07:43,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:07:43,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:07:43,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:07:43,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:07:43,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:07:43,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:07:43,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:07:43,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:07:43,638 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:07:43,651 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:07:43,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:07:43,652 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:07:43,652 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:07:43,652 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:07:43,653 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:07:43,653 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:07:43,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:07:43,653 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:07:43,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:07:43,654 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:07:43,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:07:43,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:07:43,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:07:43,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:07:43,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:07:43,655 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:07:43,655 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:07:43,656 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:07:43,656 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:07:43,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:07:43,656 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:07:43,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:07:43,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:07:43,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:07:43,657 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:07:43,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:07:43,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:07:43,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:07:43,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:07:43,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:07:43,658 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:07:43,658 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:07:43,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:07:43,659 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:07:43,659 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:07:43,659 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_b78953e7-c787-4478-b36d-d2e4b3729b0f/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 -> 764a558f84753bff2f3381f04a56ebf221297041 [2019-12-07 20:07:43,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:07:43,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:07:43,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:07:43,863 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:07:43,863 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:07:43,864 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2019-12-07 20:07:43,905 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/data/0005ec726/12026b5ebaba4325a61807f897db8bc6/FLAGa0fd946c9 [2019-12-07 20:07:44,263 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:07:44,264 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2019-12-07 20:07:44,273 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/data/0005ec726/12026b5ebaba4325a61807f897db8bc6/FLAGa0fd946c9 [2019-12-07 20:07:44,281 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/data/0005ec726/12026b5ebaba4325a61807f897db8bc6 [2019-12-07 20:07:44,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:07:44,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:07:44,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:07:44,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:07:44,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:07:44,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:07:44" (1/1) ... [2019-12-07 20:07:44,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44, skipping insertion in model container [2019-12-07 20:07:44,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:07:44" (1/1) ... [2019-12-07 20:07:44,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:07:44,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:07:44,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:07:44,557 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:07:44,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:07:44,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:07:44,611 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:07:44,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:07:44,673 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:07:44,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44 WrapperNode [2019-12-07 20:07:44,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:07:44,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:07:44,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:07:44,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:07:44,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44" (1/1) ... [2019-12-07 20:07:44,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44" (1/1) ... [2019-12-07 20:07:44,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:07:44,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:07:44,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:07:44,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:07:44,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44" (1/1) ... [2019-12-07 20:07:44,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44" (1/1) ... [2019-12-07 20:07:44,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44" (1/1) ... [2019-12-07 20:07:44,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44" (1/1) ... [2019-12-07 20:07:44,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44" (1/1) ... [2019-12-07 20:07:44,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44" (1/1) ... [2019-12-07 20:07:44,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44" (1/1) ... [2019-12-07 20:07:44,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:07:44,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:07:44,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:07:44,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:07:44,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:07:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:07:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:07:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:07:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:07:45,323 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:07:45,323 INFO L287 CfgBuilder]: Removed 158 assume(true) statements. [2019-12-07 20:07:45,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:07:45 BoogieIcfgContainer [2019-12-07 20:07:45,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:07:45,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:07:45,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:07:45,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:07:45,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:07:44" (1/3) ... [2019-12-07 20:07:45,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1c7b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:07:45, skipping insertion in model container [2019-12-07 20:07:45,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:07:44" (2/3) ... [2019-12-07 20:07:45,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1c7b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:07:45, skipping insertion in model container [2019-12-07 20:07:45,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:07:45" (3/3) ... [2019-12-07 20:07:45,330 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2019-12-07 20:07:45,337 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:07:45,342 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:07:45,350 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:07:45,367 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:07:45,367 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:07:45,368 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:07:45,368 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:07:45,368 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:07:45,368 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:07:45,368 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:07:45,368 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:07:45,380 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-12-07 20:07:45,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 20:07:45,385 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:07:45,385 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:07:45,386 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:07:45,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:07:45,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1529342393, now seen corresponding path program 1 times [2019-12-07 20:07:45,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:07:45,399 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185083302] [2019-12-07 20:07:45,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 20:07:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:07:45,552 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:07:45,556 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:07:45,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:45,567 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:07:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:45,572 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185083302] [2019-12-07 20:07:45,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:07:45,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:07:45,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139803828] [2019-12-07 20:07:45,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:07:45,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:07:45,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:07:45,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:07:45,586 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2019-12-07 20:07:45,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:07:45,609 INFO L93 Difference]: Finished difference Result 216 states and 329 transitions. [2019-12-07 20:07:45,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:07:45,610 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 20:07:45,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:07:45,618 INFO L225 Difference]: With dead ends: 216 [2019-12-07 20:07:45,618 INFO L226 Difference]: Without dead ends: 107 [2019-12-07 20:07:45,621 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:07:45,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-12-07 20:07:45,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-12-07 20:07:45,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-12-07 20:07:45,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2019-12-07 20:07:45,658 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 16 [2019-12-07 20:07:45,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:07:45,658 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-12-07 20:07:45,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:07:45,658 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2019-12-07 20:07:45,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 20:07:45,659 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:07:45,659 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:07:45,860 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:07:45,861 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:07:45,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:07:45,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1945506518, now seen corresponding path program 1 times [2019-12-07 20:07:45,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:07:45,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785322253] [2019-12-07 20:07:45,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 20:07:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:07:46,046 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:07:46,048 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:07:46,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:46,061 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:07:46,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:46,069 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785322253] [2019-12-07 20:07:46,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:07:46,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:07:46,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174911927] [2019-12-07 20:07:46,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:07:46,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:07:46,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:07:46,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:07:46,072 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 4 states. [2019-12-07 20:07:46,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:07:46,083 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2019-12-07 20:07:46,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:07:46,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 20:07:46,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:07:46,084 INFO L225 Difference]: With dead ends: 107 [2019-12-07 20:07:46,084 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 20:07:46,085 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:07:46,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 20:07:46,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 20:07:46,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 20:07:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2019-12-07 20:07:46,089 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 17 [2019-12-07 20:07:46,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:07:46,089 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2019-12-07 20:07:46,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:07:46,090 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2019-12-07 20:07:46,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 20:07:46,090 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:07:46,090 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:07:46,291 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:07:46,291 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:07:46,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:07:46,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1939738244, now seen corresponding path program 1 times [2019-12-07 20:07:46,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:07:46,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376364207] [2019-12-07 20:07:46,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 20:07:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:07:46,430 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:07:46,432 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:07:46,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:46,439 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:07:46,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:46,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376364207] [2019-12-07 20:07:46,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:07:46,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:07:46,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460288827] [2019-12-07 20:07:46,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:07:46,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:07:46,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:07:46,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:07:46,446 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand 4 states. [2019-12-07 20:07:46,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:07:46,482 INFO L93 Difference]: Finished difference Result 84 states and 124 transitions. [2019-12-07 20:07:46,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:07:46,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 20:07:46,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:07:46,483 INFO L225 Difference]: With dead ends: 84 [2019-12-07 20:07:46,483 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 20:07:46,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:07:46,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 20:07:46,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 20:07:46,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 20:07:46,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2019-12-07 20:07:46,489 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 22 [2019-12-07 20:07:46,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:07:46,489 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2019-12-07 20:07:46,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:07:46,489 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2019-12-07 20:07:46,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 20:07:46,490 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:07:46,490 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:07:46,690 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:07:46,691 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:07:46,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:07:46,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1547834963, now seen corresponding path program 1 times [2019-12-07 20:07:46,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:07:46,693 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105887327] [2019-12-07 20:07:46,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 20:07:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:07:46,831 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:07:46,832 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:07:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:46,838 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:07:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:46,841 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105887327] [2019-12-07 20:07:46,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:07:46,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:07:46,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663342030] [2019-12-07 20:07:46,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:07:46,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:07:46,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:07:46,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:07:46,843 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2019-12-07 20:07:46,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:07:46,895 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2019-12-07 20:07:46,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:07:46,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 20:07:46,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:07:46,897 INFO L225 Difference]: With dead ends: 105 [2019-12-07 20:07:46,897 INFO L226 Difference]: Without dead ends: 66 [2019-12-07 20:07:46,898 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:07:46,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-07 20:07:46,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2019-12-07 20:07:46,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-12-07 20:07:46,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2019-12-07 20:07:46,906 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 24 [2019-12-07 20:07:46,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:07:46,906 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2019-12-07 20:07:46,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:07:46,907 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2019-12-07 20:07:46,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 20:07:46,908 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:07:46,908 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:07:47,109 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:07:47,110 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:07:47,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:07:47,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1827782978, now seen corresponding path program 1 times [2019-12-07 20:07:47,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:07:47,111 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833436007] [2019-12-07 20:07:47,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 20:07:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:07:47,246 INFO L264 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:07:47,247 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:07:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:47,260 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:07:47,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:47,265 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833436007] [2019-12-07 20:07:47,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:07:47,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:07:47,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223718447] [2019-12-07 20:07:47,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:07:47,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:07:47,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:07:47,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:07:47,266 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 5 states. [2019-12-07 20:07:47,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:07:47,313 INFO L93 Difference]: Finished difference Result 171 states and 239 transitions. [2019-12-07 20:07:47,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 20:07:47,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-07 20:07:47,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:07:47,314 INFO L225 Difference]: With dead ends: 171 [2019-12-07 20:07:47,314 INFO L226 Difference]: Without dead ends: 113 [2019-12-07 20:07:47,315 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:07:47,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-12-07 20:07:47,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 70. [2019-12-07 20:07:47,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-07 20:07:47,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2019-12-07 20:07:47,321 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 30 [2019-12-07 20:07:47,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:07:47,321 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2019-12-07 20:07:47,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:07:47,321 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2019-12-07 20:07:47,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 20:07:47,322 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:07:47,322 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:07:47,522 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:07:47,523 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:07:47,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:07:47,523 INFO L82 PathProgramCache]: Analyzing trace with hash 834728065, now seen corresponding path program 1 times [2019-12-07 20:07:47,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:07:47,524 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275581522] [2019-12-07 20:07:47,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 20:07:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:07:47,619 INFO L264 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:07:47,620 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:07:47,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:47,635 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:07:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:07:47,656 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275581522] [2019-12-07 20:07:47,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:07:47,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 20:07:47,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449394652] [2019-12-07 20:07:47,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 20:07:47,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:07:47,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 20:07:47,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 20:07:47,657 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand 8 states. [2019-12-07 20:07:47,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:07:47,903 INFO L93 Difference]: Finished difference Result 518 states and 731 transitions. [2019-12-07 20:07:47,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 20:07:47,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-12-07 20:07:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:07:47,907 INFO L225 Difference]: With dead ends: 518 [2019-12-07 20:07:47,907 INFO L226 Difference]: Without dead ends: 454 [2019-12-07 20:07:47,908 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-12-07 20:07:47,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-12-07 20:07:47,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 169. [2019-12-07 20:07:47,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-12-07 20:07:47,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 229 transitions. [2019-12-07 20:07:47,931 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 229 transitions. Word has length 30 [2019-12-07 20:07:47,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:07:47,932 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 229 transitions. [2019-12-07 20:07:47,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 20:07:47,932 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 229 transitions. [2019-12-07 20:07:47,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-12-07 20:07:47,934 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:07:47,934 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:07:48,134 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 20:07:48,135 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:07:48,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:07:48,136 INFO L82 PathProgramCache]: Analyzing trace with hash 720082008, now seen corresponding path program 1 times [2019-12-07 20:07:48,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:07:48,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817665642] [2019-12-07 20:07:48,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 20:07:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:07:48,304 INFO L264 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:07:48,306 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:07:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 20:07:48,315 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:07:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 20:07:48,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817665642] [2019-12-07 20:07:48,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:07:48,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 20:07:48,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260401763] [2019-12-07 20:07:48,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 20:07:48,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:07:48,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 20:07:48,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 20:07:48,327 INFO L87 Difference]: Start difference. First operand 169 states and 229 transitions. Second operand 6 states. [2019-12-07 20:07:48,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:07:48,369 INFO L93 Difference]: Finished difference Result 399 states and 539 transitions. [2019-12-07 20:07:48,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:07:48,370 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2019-12-07 20:07:48,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:07:48,371 INFO L225 Difference]: With dead ends: 399 [2019-12-07 20:07:48,371 INFO L226 Difference]: Without dead ends: 236 [2019-12-07 20:07:48,372 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:07:48,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-12-07 20:07:48,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 148. [2019-12-07 20:07:48,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-12-07 20:07:48,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2019-12-07 20:07:48,386 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 48 [2019-12-07 20:07:48,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:07:48,386 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2019-12-07 20:07:48,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 20:07:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2019-12-07 20:07:48,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-07 20:07:48,388 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:07:48,388 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:07:48,589 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 20:07:48,589 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:07:48,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:07:48,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1774800916, now seen corresponding path program 1 times [2019-12-07 20:07:48,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:07:48,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454236979] [2019-12-07 20:07:48,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 20:07:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:07:48,740 INFO L264 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:07:48,742 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:07:48,759 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 20:07:48,759 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:07:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 20:07:48,764 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454236979] [2019-12-07 20:07:48,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:07:48,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:07:48,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164563442] [2019-12-07 20:07:48,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 20:07:48,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:07:48,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 20:07:48,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 20:07:48,766 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand 6 states. [2019-12-07 20:07:48,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:07:48,870 INFO L93 Difference]: Finished difference Result 766 states and 1050 transitions. [2019-12-07 20:07:48,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 20:07:48,871 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2019-12-07 20:07:48,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:07:48,874 INFO L225 Difference]: With dead ends: 766 [2019-12-07 20:07:48,874 INFO L226 Difference]: Without dead ends: 624 [2019-12-07 20:07:48,874 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-12-07 20:07:48,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2019-12-07 20:07:48,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 288. [2019-12-07 20:07:48,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2019-12-07 20:07:48,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 378 transitions. [2019-12-07 20:07:48,897 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 378 transitions. Word has length 49 [2019-12-07 20:07:48,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:07:48,897 INFO L462 AbstractCegarLoop]: Abstraction has 288 states and 378 transitions. [2019-12-07 20:07:48,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 20:07:48,897 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 378 transitions. [2019-12-07 20:07:48,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-12-07 20:07:48,898 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:07:48,898 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:07:49,098 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 20:07:49,099 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:07:49,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:07:49,099 INFO L82 PathProgramCache]: Analyzing trace with hash -337830252, now seen corresponding path program 1 times [2019-12-07 20:07:49,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:07:49,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026426237] [2019-12-07 20:07:49,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 20:07:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:07:49,198 INFO L264 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:07:49,200 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:07:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:07:49,221 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:07:49,249 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:07:49,249 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026426237] [2019-12-07 20:07:49,250 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [808585395] [2019-12-07 20:07:49,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 20:07:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:07:49,343 INFO L264 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:07:49,344 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:07:49,352 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:07:49,352 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:07:49,357 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:07:49,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921076671] [2019-12-07 20:07:49,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:07:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:07:49,480 INFO L264 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:07:49,481 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:07:49,486 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:07:49,486 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:07:49,491 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:07:49,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 20:07:49,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 20:07:49,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080277450] [2019-12-07 20:07:49,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 20:07:49,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:07:49,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 20:07:49,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 20:07:49,492 INFO L87 Difference]: Start difference. First operand 288 states and 378 transitions. Second operand 10 states. [2019-12-07 20:07:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:07:50,175 INFO L93 Difference]: Finished difference Result 1895 states and 2527 transitions. [2019-12-07 20:07:50,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 20:07:50,175 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2019-12-07 20:07:50,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:07:50,182 INFO L225 Difference]: With dead ends: 1895 [2019-12-07 20:07:50,182 INFO L226 Difference]: Without dead ends: 1661 [2019-12-07 20:07:50,183 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 285 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 20:07:50,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2019-12-07 20:07:50,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 520. [2019-12-07 20:07:50,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2019-12-07 20:07:50,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 692 transitions. [2019-12-07 20:07:50,219 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 692 transitions. Word has length 50 [2019-12-07 20:07:50,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:07:50,219 INFO L462 AbstractCegarLoop]: Abstraction has 520 states and 692 transitions. [2019-12-07 20:07:50,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 20:07:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 692 transitions. [2019-12-07 20:07:50,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-12-07 20:07:50,220 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:07:50,220 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:07:50,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 20:07:50,822 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:07:50,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:07:50,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1076130248, now seen corresponding path program 2 times [2019-12-07 20:07:50,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:07:50,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307251507] [2019-12-07 20:07:50,823 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-12-07 20:07:51,401 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 20:07:51,401 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 20:07:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:07:52,317 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:07:52,317 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:07:52,518 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-12-07 20:07:52,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:07:52 BoogieIcfgContainer [2019-12-07 20:07:52,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:07:52,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:07:52,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:07:52,626 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:07:52,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:07:45" (3/4) ... [2019-12-07 20:07:52,628 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:07:52,707 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b78953e7-c787-4478-b36d-d2e4b3729b0f/bin/utaipan/witness.graphml [2019-12-07 20:07:52,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:07:52,708 INFO L168 Benchmark]: Toolchain (without parser) took 8423.67 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 319.3 MB). Free memory was 952.4 MB in the beginning and 1.2 GB in the end (delta: -207.6 MB). Peak memory consumption was 111.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:07:52,708 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:07:52,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:07:52,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:07:52,709 INFO L168 Benchmark]: Boogie Preprocessor took 31.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:07:52,709 INFO L168 Benchmark]: RCFGBuilder took 573.23 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: 82.3 MB). Peak memory consumption was 82.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:07:52,709 INFO L168 Benchmark]: TraceAbstraction took 7300.78 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -164.0 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:07:52,709 INFO L168 Benchmark]: Witness Printer took 80.50 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:07:52,711 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 389.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.40 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 31.43 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 573.23 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: 82.3 MB). Peak memory consumption was 82.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7300.78 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -164.0 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Witness Printer took 80.50 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 247]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L349] int pumpRunning = 0; [L350] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L281] int splverifierCounter ; [L282] int tmp ; [L283] int tmp___0 ; [L284] int tmp___1 ; [L285] int tmp___2 ; [L288] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L290] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L292] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L298] tmp = __VERIFIER_nondet_int() [L300] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] COND TRUE waterLevel < 2 [L168] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND TRUE \read(tmp___2) [L530] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L356] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L363] COND TRUE \read(systemActive) [L411] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L414] COND FALSE !(\read(pumpRunning)) [L385] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L388] COND TRUE ! pumpRunning [L508] int retValue_acc ; [L509] int tmp ; [L510] int tmp___0 ; [L229] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L232] COND FALSE !(waterLevel < 2) [L236] retValue_acc = 0 [L237] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L514] tmp = isHighWaterSensorDry() [L516] COND FALSE !(\read(tmp)) [L519] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L521] retValue_acc = tmp___0 [L522] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L390] tmp = isHighWaterLevel() [L392] COND TRUE \read(tmp) [L439] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L254] int tmp ; [L255] int tmp___0 ; [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L259] tmp = getWaterLevel() [L261] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L290] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L292] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND TRUE \read(tmp___2) [L530] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L356] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L155] COND TRUE waterLevel > 0 [L156] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L363] COND TRUE \read(systemActive) [L411] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L414] COND TRUE \read(pumpRunning) [L452] int retValue_acc ; [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L456] retValue_acc = isMethaneLevelCritical() [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(tmp)) [L385] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L388] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L254] int tmp ; [L255] int tmp___0 ; [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L259] tmp = getWaterLevel() [L261] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L290] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L292] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND TRUE \read(tmp___2) [L530] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L356] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L155] COND TRUE waterLevel > 0 [L156] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L363] COND TRUE \read(systemActive) [L411] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L414] COND TRUE \read(pumpRunning) [L452] int retValue_acc ; [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L456] retValue_acc = isMethaneLevelCritical() [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(tmp)) [L385] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L388] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L254] int tmp ; [L255] int tmp___0 ; [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L259] tmp = getWaterLevel() [L261] COND TRUE tmp == 0 [L463] int retValue_acc ; [L466] retValue_acc = pumpRunning [L467] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L263] tmp___0 = isPumpRunning() [L265] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L247] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 3 error locations. Result: UNSAFE, OverallTime: 7.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 901 SDtfs, 2267 SDslu, 2140 SDs, 0 SdLazy, 409 SolverSat, 111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 788 GetRequests, 722 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=520occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1895 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 455 NumberOfCodeBlocks, 455 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 750 ConstructedInterpolants, 0 QuantifiedInterpolants, 83694 SizeOfPredicates, 29 NumberOfNonLiveVariables, 2225 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 22 InterpolantComputations, 16 PerfectInterpolantSequences, 86/140 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...