./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.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_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/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 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b ...................................................................................................................................... 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_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/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 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:44:26,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:44:26,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:44:26,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:44:26,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:44:26,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:44:26,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:44:26,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:44:26,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:44:26,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:44:26,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:44:26,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:44:26,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:44:26,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:44:26,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:44:26,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:44:26,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:44:26,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:44:26,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:44:26,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:44:26,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:44:26,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:44:26,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:44:26,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:44:26,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:44:26,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:44:26,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:44:26,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:44:26,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:44:26,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:44:26,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:44:26,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:44:26,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:44:26,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:44:26,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:44:26,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:44:26,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:44:26,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:44:26,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:44:26,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:44:26,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:44:26,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:44:26,195 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:44:26,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:44:26,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:44:26,196 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:44:26,196 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:44:26,196 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:44:26,196 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:44:26,196 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:44:26,196 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:44:26,197 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:44:26,197 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:44:26,197 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:44:26,197 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:44:26,197 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:44:26,197 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:44:26,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:44:26,198 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:44:26,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:44:26,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:44:26,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:44:26,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:44:26,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:44:26,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:44:26,199 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:44:26,199 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:44:26,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:44:26,200 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:44:26,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:44:26,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:44:26,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:44:26,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:44:26,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:44:26,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:44:26,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:44:26,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:44:26,202 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:44:26,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:44:26,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:44:26,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:44:26,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:44:26,202 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_9a3f2790-6737-4759-86d8-fd63915b3abf/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 -> 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b [2019-12-07 12:44:26,311 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:44:26,320 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:44:26,322 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:44:26,323 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:44:26,323 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:44:26,324 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2019-12-07 12:44:26,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/data/93d5f29ae/6f672bb26c8648daabe82302f4fec054/FLAG1295a3f36 [2019-12-07 12:44:26,720 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:44:26,721 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2019-12-07 12:44:26,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/data/93d5f29ae/6f672bb26c8648daabe82302f4fec054/FLAG1295a3f36 [2019-12-07 12:44:26,740 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/data/93d5f29ae/6f672bb26c8648daabe82302f4fec054 [2019-12-07 12:44:26,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:44:26,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:44:26,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:44:26,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:44:26,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:44:26,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:44:26" (1/1) ... [2019-12-07 12:44:26,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@881d7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:26, skipping insertion in model container [2019-12-07 12:44:26,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:44:26" (1/1) ... [2019-12-07 12:44:26,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:44:26,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:44:26,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:44:27,005 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 12:44:27,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@52651f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:27, skipping insertion in model container [2019-12-07 12:44:27,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:44:27,006 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 12:44:27,008 INFO L168 Benchmark]: Toolchain (without parser) took 263.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -131.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:27,008 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:44:27,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -137.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:27,010 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 262.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -137.2 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: 97]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 12:44:28,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:44:28,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:44:28,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:44:28,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:44:28,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:44:28,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:44:28,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:44:28,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:44:28,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:44:28,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:44:28,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:44:28,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:44:28,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:44:28,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:44:28,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:44:28,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:44:28,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:44:28,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:44:28,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:44:28,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:44:28,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:44:28,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:44:28,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:44:28,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:44:28,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:44:28,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:44:28,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:44:28,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:44:28,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:44:28,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:44:28,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:44:28,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:44:28,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:44:28,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:44:28,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:44:28,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:44:28,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:44:28,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:44:28,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:44:28,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:44:28,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 12:44:28,279 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:44:28,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:44:28,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:44:28,280 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:44:28,280 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:44:28,280 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:44:28,281 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:44:28,281 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:44:28,281 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:44:28,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:44:28,281 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:44:28,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:44:28,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:44:28,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:44:28,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:44:28,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:44:28,282 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:44:28,282 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:44:28,282 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:44:28,283 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:44:28,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:44:28,283 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:44:28,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:44:28,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:44:28,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:44:28,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:44:28,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:44:28,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:44:28,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:44:28,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:44:28,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:44:28,284 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 12:44:28,284 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:44:28,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:44:28,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:44:28,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:44:28,285 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_9a3f2790-6737-4759-86d8-fd63915b3abf/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 -> 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b [2019-12-07 12:44:28,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:44:28,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:44:28,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:44:28,455 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:44:28,455 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:44:28,456 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2019-12-07 12:44:28,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/data/a69eb1bc1/0a433ee9e135454cbadc14d2f6a320c3/FLAGdb1d19364 [2019-12-07 12:44:28,935 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:44:28,936 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2019-12-07 12:44:28,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/data/a69eb1bc1/0a433ee9e135454cbadc14d2f6a320c3/FLAGdb1d19364 [2019-12-07 12:44:28,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/data/a69eb1bc1/0a433ee9e135454cbadc14d2f6a320c3 [2019-12-07 12:44:28,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:44:28,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:44:28,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:44:28,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:44:28,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:44:28,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:44:28" (1/1) ... [2019-12-07 12:44:28,960 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 12:44:28, skipping insertion in model container [2019-12-07 12:44:28,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:44:28" (1/1) ... [2019-12-07 12:44:28,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:44:28,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:44:29,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:44:29,220 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 12:44:29,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:44:29,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:44:29,274 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:44:29,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:44:29,335 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:44:29,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29 WrapperNode [2019-12-07 12:44:29,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:44:29,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:44:29,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:44:29,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:44:29,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29" (1/1) ... [2019-12-07 12:44:29,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29" (1/1) ... [2019-12-07 12:44:29,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:44:29,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:44:29,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:44:29,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:44:29,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29" (1/1) ... [2019-12-07 12:44:29,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29" (1/1) ... [2019-12-07 12:44:29,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29" (1/1) ... [2019-12-07 12:44:29,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29" (1/1) ... [2019-12-07 12:44:29,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29" (1/1) ... [2019-12-07 12:44:29,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29" (1/1) ... [2019-12-07 12:44:29,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29" (1/1) ... [2019-12-07 12:44:29,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:44:29,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:44:29,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:44:29,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:44:29,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:44:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:44:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 12:44:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:44:29,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:44:30,008 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:44:30,008 INFO L287 CfgBuilder]: Removed 198 assume(true) statements. [2019-12-07 12:44:30,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:44:30 BoogieIcfgContainer [2019-12-07 12:44:30,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:44:30,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:44:30,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:44:30,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:44:30,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:44:28" (1/3) ... [2019-12-07 12:44:30,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1febb1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:44:30, skipping insertion in model container [2019-12-07 12:44:30,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:29" (2/3) ... [2019-12-07 12:44:30,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1febb1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:44:30, skipping insertion in model container [2019-12-07 12:44:30,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:44:30" (3/3) ... [2019-12-07 12:44:30,014 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2019-12-07 12:44:30,021 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:44:30,026 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 12:44:30,034 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 12:44:30,051 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:44:30,051 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:44:30,051 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:44:30,051 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:44:30,051 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:44:30,051 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:44:30,051 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:44:30,051 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:44:30,063 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2019-12-07 12:44:30,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 12:44:30,068 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:30,068 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:44:30,069 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:30,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:30,073 INFO L82 PathProgramCache]: Analyzing trace with hash 325683581, now seen corresponding path program 1 times [2019-12-07 12:44:30,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:30,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664660320] [2019-12-07 12:44:30,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 12:44:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:30,211 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 12:44:30,215 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:30,226 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:30,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:30,230 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664660320] [2019-12-07 12:44:30,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:44:30,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 12:44:30,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332773954] [2019-12-07 12:44:30,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:44:30,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:30,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:44:30,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:44:30,244 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 2 states. [2019-12-07 12:44:30,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:30,267 INFO L93 Difference]: Finished difference Result 256 states and 383 transitions. [2019-12-07 12:44:30,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:44:30,269 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 12:44:30,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:30,278 INFO L225 Difference]: With dead ends: 256 [2019-12-07 12:44:30,279 INFO L226 Difference]: Without dead ends: 127 [2019-12-07 12:44:30,282 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 12:44:30,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-12-07 12:44:30,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-12-07 12:44:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-12-07 12:44:30,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2019-12-07 12:44:30,316 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 16 [2019-12-07 12:44:30,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:30,316 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2019-12-07 12:44:30,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:44:30,317 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2019-12-07 12:44:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 12:44:30,317 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:30,318 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 12:44:30,518 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:44:30,518 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:30,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:30,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1302516555, now seen corresponding path program 1 times [2019-12-07 12:44:30,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:30,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718790134] [2019-12-07 12:44:30,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 12:44:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:30,630 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:44:30,632 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:30,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:30,647 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:30,655 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 12:44:30,655 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718790134] [2019-12-07 12:44:30,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:44:30,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:44:30,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21045098] [2019-12-07 12:44:30,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:44:30,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:30,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:44:30,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:44:30,658 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand 4 states. [2019-12-07 12:44:30,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:30,670 INFO L93 Difference]: Finished difference Result 127 states and 183 transitions. [2019-12-07 12:44:30,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:44:30,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 12:44:30,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:30,671 INFO L225 Difference]: With dead ends: 127 [2019-12-07 12:44:30,671 INFO L226 Difference]: Without dead ends: 53 [2019-12-07 12:44:30,672 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 12:44:30,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-12-07 12:44:30,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-12-07 12:44:30,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-12-07 12:44:30,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2019-12-07 12:44:30,677 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2019-12-07 12:44:30,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:30,678 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2019-12-07 12:44:30,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:44:30,678 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2019-12-07 12:44:30,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 12:44:30,678 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:30,678 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 12:44:30,879 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:44:30,879 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:30,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:30,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1189907750, now seen corresponding path program 1 times [2019-12-07 12:44:30,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:30,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025517531] [2019-12-07 12:44:30,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 12:44:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:31,009 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:44:31,011 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:31,017 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:31,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:31,023 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025517531] [2019-12-07 12:44:31,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:44:31,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:44:31,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642820036] [2019-12-07 12:44:31,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:44:31,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:31,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:44:31,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:44:31,024 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 4 states. [2019-12-07 12:44:31,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:31,072 INFO L93 Difference]: Finished difference Result 170 states and 250 transitions. [2019-12-07 12:44:31,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:44:31,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 12:44:31,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:31,074 INFO L225 Difference]: With dead ends: 170 [2019-12-07 12:44:31,074 INFO L226 Difference]: Without dead ends: 123 [2019-12-07 12:44:31,074 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 12:44:31,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-12-07 12:44:31,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 72. [2019-12-07 12:44:31,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-12-07 12:44:31,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 105 transitions. [2019-12-07 12:44:31,083 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 105 transitions. Word has length 22 [2019-12-07 12:44:31,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:31,084 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 105 transitions. [2019-12-07 12:44:31,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:44:31,084 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2019-12-07 12:44:31,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 12:44:31,085 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:31,085 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:44:31,285 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:44:31,286 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:31,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:31,286 INFO L82 PathProgramCache]: Analyzing trace with hash 752688312, now seen corresponding path program 1 times [2019-12-07 12:44:31,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:31,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164066101] [2019-12-07 12:44:31,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 12:44:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:31,461 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:44:31,463 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:31,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:31,468 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:31,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:31,470 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164066101] [2019-12-07 12:44:31,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:44:31,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 12:44:31,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607149312] [2019-12-07 12:44:31,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:44:31,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:31,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:44:31,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:44:31,472 INFO L87 Difference]: Start difference. First operand 72 states and 105 transitions. Second operand 3 states. [2019-12-07 12:44:31,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:31,527 INFO L93 Difference]: Finished difference Result 159 states and 234 transitions. [2019-12-07 12:44:31,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:44:31,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 12:44:31,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:31,528 INFO L225 Difference]: With dead ends: 159 [2019-12-07 12:44:31,529 INFO L226 Difference]: Without dead ends: 93 [2019-12-07 12:44:31,529 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 12:44:31,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-12-07 12:44:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2019-12-07 12:44:31,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-12-07 12:44:31,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2019-12-07 12:44:31,538 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 24 [2019-12-07 12:44:31,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:31,538 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2019-12-07 12:44:31,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:44:31,538 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2019-12-07 12:44:31,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:44:31,539 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:31,539 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:44:31,740 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 12:44:31,740 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:31,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:31,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1744683281, now seen corresponding path program 1 times [2019-12-07 12:44:31,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:31,742 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129477828] [2019-12-07 12:44:31,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 12:44:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:31,868 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:44:31,869 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:31,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:31,882 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:31,903 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129477828] [2019-12-07 12:44:31,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:44:31,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 12:44:31,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989580934] [2019-12-07 12:44:31,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:44:31,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:31,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:44:31,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:44:31,905 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 8 states. [2019-12-07 12:44:32,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:32,164 INFO L93 Difference]: Finished difference Result 668 states and 972 transitions. [2019-12-07 12:44:32,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 12:44:32,165 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-12-07 12:44:32,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:32,169 INFO L225 Difference]: With dead ends: 668 [2019-12-07 12:44:32,170 INFO L226 Difference]: Without dead ends: 583 [2019-12-07 12:44:32,171 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 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 12:44:32,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-12-07 12:44:32,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 227. [2019-12-07 12:44:32,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-12-07 12:44:32,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 316 transitions. [2019-12-07 12:44:32,217 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 316 transitions. Word has length 25 [2019-12-07 12:44:32,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:32,218 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 316 transitions. [2019-12-07 12:44:32,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:44:32,218 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 316 transitions. [2019-12-07 12:44:32,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 12:44:32,220 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:32,220 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 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] [2019-12-07 12:44:32,420 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 12:44:32,421 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:32,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:32,421 INFO L82 PathProgramCache]: Analyzing trace with hash 31993027, now seen corresponding path program 1 times [2019-12-07 12:44:32,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:32,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964522039] [2019-12-07 12:44:32,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/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 12:44:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:32,583 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:44:32,585 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:32,596 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:32,596 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:32,616 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:32,616 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964522039] [2019-12-07 12:44:32,616 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [69759783] [2019-12-07 12:44:32,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 12:44:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:32,709 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:44:32,711 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:32,734 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 12:44:32,734 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 12:44:32,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 12:44:32,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2019-12-07 12:44:32,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494134902] [2019-12-07 12:44:32,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:44:32,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:32,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:44:32,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 12:44:32,739 INFO L87 Difference]: Start difference. First operand 227 states and 316 transitions. Second operand 5 states. [2019-12-07 12:44:32,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:32,902 INFO L93 Difference]: Finished difference Result 543 states and 767 transitions. [2019-12-07 12:44:32,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 12:44:32,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2019-12-07 12:44:32,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:32,906 INFO L225 Difference]: With dead ends: 543 [2019-12-07 12:44:32,906 INFO L226 Difference]: Without dead ends: 541 [2019-12-07 12:44:32,907 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-12-07 12:44:32,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2019-12-07 12:44:32,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 227. [2019-12-07 12:44:32,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-12-07 12:44:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 314 transitions. [2019-12-07 12:44:32,926 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 314 transitions. Word has length 41 [2019-12-07 12:44:32,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:32,926 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 314 transitions. [2019-12-07 12:44:32,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:44:32,926 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 314 transitions. [2019-12-07 12:44:32,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 12:44:32,928 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:32,928 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, 1, 1, 1] [2019-12-07 12:44:33,329 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 12:44:33,330 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:33,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:33,330 INFO L82 PathProgramCache]: Analyzing trace with hash 501007855, now seen corresponding path program 1 times [2019-12-07 12:44:33,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:33,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012358200] [2019-12-07 12:44:33,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/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 12:44:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:33,482 INFO L264 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:44:33,483 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:33,492 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:33,493 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:33,513 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:33,514 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012358200] [2019-12-07 12:44:33,514 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1905472461] [2019-12-07 12:44:33,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 12:44:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:33,625 INFO L264 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:44:33,627 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:33,652 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 12:44:33,652 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:33,655 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 12:44:33,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 12:44:33,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2019-12-07 12:44:33,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488432496] [2019-12-07 12:44:33,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:44:33,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:33,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:44:33,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 12:44:33,656 INFO L87 Difference]: Start difference. First operand 227 states and 314 transitions. Second operand 5 states. [2019-12-07 12:44:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:33,730 INFO L93 Difference]: Finished difference Result 680 states and 933 transitions. [2019-12-07 12:44:33,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:44:33,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-12-07 12:44:33,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:33,733 INFO L225 Difference]: With dead ends: 680 [2019-12-07 12:44:33,733 INFO L226 Difference]: Without dead ends: 459 [2019-12-07 12:44:33,734 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-12-07 12:44:33,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2019-12-07 12:44:33,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 242. [2019-12-07 12:44:33,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2019-12-07 12:44:33,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 329 transitions. [2019-12-07 12:44:33,754 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 329 transitions. Word has length 51 [2019-12-07 12:44:33,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:33,754 INFO L462 AbstractCegarLoop]: Abstraction has 242 states and 329 transitions. [2019-12-07 12:44:33,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:44:33,754 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 329 transitions. [2019-12-07 12:44:33,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 12:44:33,756 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:33,756 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, 1, 1, 1] [2019-12-07 12:44:34,157 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 12:44:34,158 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:34,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:34,159 INFO L82 PathProgramCache]: Analyzing trace with hash -85798159, now seen corresponding path program 1 times [2019-12-07 12:44:34,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:34,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422473738] [2019-12-07 12:44:34,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 12:44:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:34,298 INFO L264 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:44:34,299 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:34,309 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:34,331 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:44:34,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422473738] [2019-12-07 12:44:34,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1104833613] [2019-12-07 12:44:34,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 12:44:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:34,423 INFO L264 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 12:44:34,424 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:34,447 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 12:44:34,447 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:34,465 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 12:44:34,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 12:44:34,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [3, 3] total 11 [2019-12-07 12:44:34,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800919942] [2019-12-07 12:44:34,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:44:34,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:34,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:44:34,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-12-07 12:44:34,467 INFO L87 Difference]: Start difference. First operand 242 states and 329 transitions. Second operand 7 states. [2019-12-07 12:44:34,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:34,552 INFO L93 Difference]: Finished difference Result 625 states and 849 transitions. [2019-12-07 12:44:34,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:44:34,553 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-12-07 12:44:34,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:34,554 INFO L225 Difference]: With dead ends: 625 [2019-12-07 12:44:34,554 INFO L226 Difference]: Without dead ends: 389 [2019-12-07 12:44:34,555 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2019-12-07 12:44:34,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-12-07 12:44:34,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 211. [2019-12-07 12:44:34,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-12-07 12:44:34,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2019-12-07 12:44:34,571 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 51 [2019-12-07 12:44:34,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:34,571 INFO L462 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2019-12-07 12:44:34,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:44:34,572 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2019-12-07 12:44:34,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-07 12:44:34,572 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:34,573 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, 1, 1, 1] [2019-12-07 12:44:34,974 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 mathsat -unsat_core_generation=3 [2019-12-07 12:44:34,975 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:34,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:34,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1687322796, now seen corresponding path program 1 times [2019-12-07 12:44:34,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:34,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388044238] [2019-12-07 12:44:34,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/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 12:44:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:35,125 INFO L264 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 12:44:35,126 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:35,150 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 12:44:35,151 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:35,185 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 12:44:35,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388044238] [2019-12-07 12:44:35,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [179783495] [2019-12-07 12:44:35,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 12:44:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:35,287 INFO L264 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 12:44:35,288 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:35,297 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 12:44:35,297 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:35,304 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 12:44:35,305 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284817441] [2019-12-07 12:44:35,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:44:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:35,428 INFO L264 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 12:44:35,429 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:35,439 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 12:44:35,439 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:35,444 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 12:44:35,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 12:44:35,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 12:44:35,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908644555] [2019-12-07 12:44:35,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 12:44:35,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:35,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 12:44:35,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 12:44:35,445 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand 10 states. [2019-12-07 12:44:36,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:36,066 INFO L93 Difference]: Finished difference Result 1316 states and 1806 transitions. [2019-12-07 12:44:36,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 12:44:36,067 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2019-12-07 12:44:36,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:36,071 INFO L225 Difference]: With dead ends: 1316 [2019-12-07 12:44:36,071 INFO L226 Difference]: Without dead ends: 1153 [2019-12-07 12:44:36,072 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 301 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 12:44:36,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2019-12-07 12:44:36,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 350. [2019-12-07 12:44:36,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-07 12:44:36,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 475 transitions. [2019-12-07 12:44:36,099 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 475 transitions. Word has length 53 [2019-12-07 12:44:36,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:36,100 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 475 transitions. [2019-12-07 12:44:36,100 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 12:44:36,100 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 475 transitions. [2019-12-07 12:44:36,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-12-07 12:44:36,100 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:36,101 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, 1, 1, 1] [2019-12-07 12:44:36,702 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3,14 cvc4 --incremental --print-success --lang smt --rewrite-divk,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:44:36,703 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:36,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:36,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1211162538, now seen corresponding path program 2 times [2019-12-07 12:44:36,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:36,705 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033166150] [2019-12-07 12:44:36,705 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2019-12-07 12:44:37,447 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 12:44:37,447 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 12:44:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:44:38,229 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 12:44:38,229 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:44:38,430 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2019-12-07 12:44:38,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:44:38 BoogieIcfgContainer [2019-12-07 12:44:38,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:44:38,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:44:38,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:44:38,543 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:44:38,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:44:30" (3/4) ... [2019-12-07 12:44:38,544 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:44:38,635 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9a3f2790-6737-4759-86d8-fd63915b3abf/bin/utaipan/witness.graphml [2019-12-07 12:44:38,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:44:38,636 INFO L168 Benchmark]: Toolchain (without parser) took 9681.36 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 317.7 MB). Free memory was 952.4 MB in the beginning and 980.4 MB in the end (delta: -28.1 MB). Peak memory consumption was 289.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:38,636 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:44:38,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:38,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:38,637 INFO L168 Benchmark]: Boogie Preprocessor took 35.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:44:38,637 INFO L168 Benchmark]: RCFGBuilder took 589.69 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: 88.5 MB). Peak memory consumption was 88.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:38,637 INFO L168 Benchmark]: TraceAbstraction took 8532.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.1 MB). Peak memory consumption was 181.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:38,638 INFO L168 Benchmark]: Witness Printer took 92.64 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 980.4 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:38,639 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 380.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.04 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 589.69 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: 88.5 MB). Peak memory consumption was 88.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8532.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.1 MB). Peak memory consumption was 181.2 MB. Max. memory is 11.5 GB. * Witness Printer took 92.64 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 980.4 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L774] int waterLevel = 1; [L775] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] int retValue_acc ; [L526] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L869] int splverifierCounter ; [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L873] int tmp___2 ; [L876] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L878] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L886] tmp = __VERIFIER_nondet_int() [L888] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L792] COND TRUE waterLevel < 2 [L793] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L769] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L570] COND TRUE \read(systemActive) [L618] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND FALSE !(\read(pumpRunning)) [L592] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE ! pumpRunning [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; [L854] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] COND FALSE !(waterLevel < 2) [L861] retValue_acc = 0 [L862] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp = isHighWaterSensorDry() [L740] COND FALSE !(\read(tmp)) [L743] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] tmp = isHighWaterLevel() [L599] COND TRUE \read(tmp) [L651] int tmp ; [L676] int retValue_acc ; [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] tmp = isMethaneAlarm() [L657] COND FALSE !(\read(tmp)) [L646] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L878] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L769] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L563] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L570] COND TRUE \read(systemActive) [L618] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND TRUE \read(pumpRunning) [L676] int retValue_acc ; [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) [L592] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L595] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L44] int tmp ; [L45] int tmp___0 ; [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L878] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L769] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L563] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L570] COND TRUE \read(systemActive) [L618] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L621] COND TRUE \read(pumpRunning) [L676] int retValue_acc ; [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) [L592] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L595] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L44] int tmp ; [L45] int tmp___0 ; [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 [L687] int retValue_acc ; [L690] retValue_acc = pumpRunning [L691] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L439] __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, 131 locations, 3 error locations. Result: UNSAFE, OverallTime: 8.3s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1108 SDtfs, 2775 SDslu, 2597 SDs, 0 SdLazy, 445 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1112 GetRequests, 1032 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred 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, 1921 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1070 ConstructedInterpolants, 0 QuantifiedInterpolants, 132512 SizeOfPredicates, 30 NumberOfNonLiveVariables, 2902 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 28 InterpolantComputations, 16 PerfectInterpolantSequences, 172/256 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...