./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5076d679b37839f733750e31fc3798a3b068ae0 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5076d679b37839f733750e31fc3798a3b068ae0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-a4ecdab [2020-11-22 13:01:27,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:01:27,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:01:27,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:01:27,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:01:27,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:01:27,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:01:27,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:01:27,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:01:27,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:01:27,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:01:27,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:01:27,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:01:27,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:01:27,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:01:27,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:01:27,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:01:27,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:01:27,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:01:27,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:01:27,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:01:27,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:01:27,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:01:27,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:01:27,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:01:27,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:01:27,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:01:27,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:01:27,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:01:27,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:01:27,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:01:27,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:01:27,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:01:27,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:01:27,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:01:27,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:01:27,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:01:27,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:01:27,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:01:27,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:01:27,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:01:27,424 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:01:27,472 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:01:27,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:01:27,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:01:27,474 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:01:27,474 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:01:27,474 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:01:27,474 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:01:27,475 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:01:27,475 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:01:27,475 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:01:27,476 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:01:27,477 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:01:27,477 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:01:27,477 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:01:27,478 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:01:27,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:01:27,479 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:01:27,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:01:27,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:01:27,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:01:27,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:01:27,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:01:27,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:01:27,480 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:01:27,480 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:01:27,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:01:27,481 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:01:27,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:01:27,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:01:27,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:01:27,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:01:27,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:01:27,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:01:27,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:01:27,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:01:27,483 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:01:27,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:01:27,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:01:27,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:01:27,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:01:27,484 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5076d679b37839f733750e31fc3798a3b068ae0 [2020-11-22 13:01:27,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:01:27,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:01:27,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:01:27,769 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:01:27,770 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:01:27,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2020-11-22 13:01:27,848 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/data/fe4ee46be/7f5b8a96eac44f25a327844a10700908/FLAG776f34a70 [2020-11-22 13:01:28,388 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:01:28,389 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2020-11-22 13:01:28,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/data/fe4ee46be/7f5b8a96eac44f25a327844a10700908/FLAG776f34a70 [2020-11-22 13:01:28,672 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/data/fe4ee46be/7f5b8a96eac44f25a327844a10700908 [2020-11-22 13:01:28,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:01:28,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:01:28,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:01:28,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:01:28,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:01:28,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:01:28" (1/1) ... [2020-11-22 13:01:28,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bde2cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:28, skipping insertion in model container [2020-11-22 13:01:28,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:01:28" (1/1) ... [2020-11-22 13:01:28,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:01:28,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:01:29,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:01:29,131 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) [2020-11-22 13:01:29,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@725a643b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:29, skipping insertion in model container [2020-11-22 13:01:29,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:01:29,133 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:01:29,135 INFO L168 Benchmark]: Toolchain (without parser) took 458.00 ms. Allocated memory is still 98.6 MB. Free memory was 67.4 MB in the beginning and 71.6 MB in the end (delta: -4.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:29,137 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory was 57.6 MB in the beginning and 57.6 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:01:29,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.06 ms. Allocated memory is still 98.6 MB. Free memory was 67.2 MB in the beginning and 71.6 MB in the end (delta: -4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:29,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory was 57.6 MB in the beginning and 57.6 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 451.06 ms. Allocated memory is still 98.6 MB. Free memory was 67.2 MB in the beginning and 71.6 MB in the end (delta: -4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 540]: 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 0.2.0-a4ecdab [2020-11-22 13:01:31,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:01:31,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:01:31,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:01:31,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:01:31,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:01:31,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:01:31,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:01:31,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:01:31,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:01:31,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:01:31,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:01:31,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:01:31,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:01:31,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:01:31,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:01:31,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:01:31,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:01:31,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:01:31,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:01:31,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:01:31,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:01:31,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:01:31,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:01:31,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:01:31,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:01:31,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:01:31,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:01:31,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:01:31,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:01:31,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:01:31,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:01:31,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:01:31,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:01:31,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:01:31,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:01:31,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:01:31,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:01:31,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:01:31,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:01:31,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:01:31,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:01:31,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:01:31,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:01:31,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:01:31,479 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:01:31,479 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:01:31,479 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:01:31,479 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:01:31,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:01:31,480 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:01:31,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:01:31,482 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:01:31,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:01:31,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:01:31,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:01:31,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:01:31,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:01:31,484 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:01:31,484 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:01:31,484 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:01:31,484 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:01:31,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:01:31,485 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:01:31,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:01:31,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:01:31,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:01:31,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:01:31,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:01:31,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:01:31,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:01:31,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:01:31,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:01:31,487 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:01:31,487 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:01:31,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:01:31,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:01:31,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:01:31,488 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5076d679b37839f733750e31fc3798a3b068ae0 [2020-11-22 13:01:31,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:01:31,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:01:31,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:01:31,902 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:01:31,902 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:01:31,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2020-11-22 13:01:31,981 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/data/cec6ac1fc/30f2630219dc48449a99b79017d31a35/FLAG537cc7891 [2020-11-22 13:01:32,553 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:01:32,557 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2020-11-22 13:01:32,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/data/cec6ac1fc/30f2630219dc48449a99b79017d31a35/FLAG537cc7891 [2020-11-22 13:01:32,839 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/data/cec6ac1fc/30f2630219dc48449a99b79017d31a35 [2020-11-22 13:01:32,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:01:32,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:01:32,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:01:32,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:01:32,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:01:32,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:01:32" (1/1) ... [2020-11-22 13:01:32,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@171b95e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:32, skipping insertion in model container [2020-11-22 13:01:32,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:01:32" (1/1) ... [2020-11-22 13:01:32,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:01:32,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:01:33,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:01:33,308 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:01:33,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:01:33,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:01:33,401 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:01:33,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:01:33,520 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:01:33,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33 WrapperNode [2020-11-22 13:01:33,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:01:33,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:01:33,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:01:33,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:01:33,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33" (1/1) ... [2020-11-22 13:01:33,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33" (1/1) ... [2020-11-22 13:01:33,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:01:33,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:01:33,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:01:33,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:01:33,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33" (1/1) ... [2020-11-22 13:01:33,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33" (1/1) ... [2020-11-22 13:01:33,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33" (1/1) ... [2020-11-22 13:01:33,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33" (1/1) ... [2020-11-22 13:01:33,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33" (1/1) ... [2020-11-22 13:01:33,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33" (1/1) ... [2020-11-22 13:01:33,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33" (1/1) ... [2020-11-22 13:01:33,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:01:33,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:01:33,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:01:33,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:01:33,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/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 [2020-11-22 13:01:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:01:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:01:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:01:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:01:36,214 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:01:36,215 INFO L298 CfgBuilder]: Removed 104 assume(true) statements. [2020-11-22 13:01:36,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:01:36 BoogieIcfgContainer [2020-11-22 13:01:36,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:01:36,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:01:36,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:01:36,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:01:36,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:01:32" (1/3) ... [2020-11-22 13:01:36,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba0ae5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:01:36, skipping insertion in model container [2020-11-22 13:01:36,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:33" (2/3) ... [2020-11-22 13:01:36,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba0ae5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:01:36, skipping insertion in model container [2020-11-22 13:01:36,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:01:36" (3/3) ... [2020-11-22 13:01:36,228 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-11-22 13:01:36,242 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:01:36,246 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:01:36,258 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:01:36,285 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:01:36,285 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:01:36,286 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:01:36,286 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:01:36,286 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:01:36,287 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:01:36,287 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:01:36,287 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:01:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-11-22 13:01:36,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:01:36,320 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:36,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:01:36,321 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:36,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:36,325 INFO L82 PathProgramCache]: Analyzing trace with hash 495161476, now seen corresponding path program 1 times [2020-11-22 13:01:36,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:01:36,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238632563] [2020-11-22 13:01:36,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/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 [2020-11-22 13:01:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:36,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:01:36,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:36,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:36,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:36,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:36,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238632563] [2020-11-22 13:01:36,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:36,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:01:36,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660149799] [2020-11-22 13:01:36,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:01:36,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:01:36,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:01:36,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:01:36,668 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2020-11-22 13:01:36,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:36,707 INFO L93 Difference]: Finished difference Result 160 states and 243 transitions. [2020-11-22 13:01:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:01:36,716 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:01:36,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:36,731 INFO L225 Difference]: With dead ends: 160 [2020-11-22 13:01:36,731 INFO L226 Difference]: Without dead ends: 78 [2020-11-22 13:01:36,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:01:36,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-11-22 13:01:36,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-11-22 13:01:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-22 13:01:36,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2020-11-22 13:01:36,794 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 18 [2020-11-22 13:01:36,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:36,795 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2020-11-22 13:01:36,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:01:36,796 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2020-11-22 13:01:36,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:01:36,798 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:36,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:01:37,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:01:37,003 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:37,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:37,004 INFO L82 PathProgramCache]: Analyzing trace with hash 276325507, now seen corresponding path program 1 times [2020-11-22 13:01:37,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:01:37,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891245654] [2020-11-22 13:01:37,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/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 [2020-11-22 13:01:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:37,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:01:37,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:37,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:37,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891245654] [2020-11-22 13:01:37,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:37,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:01:37,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30764539] [2020-11-22 13:01:37,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:01:37,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:01:37,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:01:37,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:01:37,232 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 4 states. [2020-11-22 13:01:37,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:37,245 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2020-11-22 13:01:37,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:01:37,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:01:37,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:37,247 INFO L225 Difference]: With dead ends: 78 [2020-11-22 13:01:37,247 INFO L226 Difference]: Without dead ends: 36 [2020-11-22 13:01:37,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:01:37,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-22 13:01:37,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-22 13:01:37,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-22 13:01:37,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-11-22 13:01:37,253 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2020-11-22 13:01:37,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:37,254 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-11-22 13:01:37,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:01:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-11-22 13:01:37,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:01:37,255 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:37,255 INFO L422 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] [2020-11-22 13:01:37,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:01:37,472 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:37,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:37,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1153900874, now seen corresponding path program 1 times [2020-11-22 13:01:37,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:01:37,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288929112] [2020-11-22 13:01:37,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/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 [2020-11-22 13:01:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:37,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:01:37,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:37,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:37,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288929112] [2020-11-22 13:01:37,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:37,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:01:37,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806082493] [2020-11-22 13:01:37,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:01:37,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:01:37,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:01:37,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:01:37,793 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 4 states. [2020-11-22 13:01:37,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:37,802 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2020-11-22 13:01:37,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:01:37,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:01:37,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:37,803 INFO L225 Difference]: With dead ends: 65 [2020-11-22 13:01:37,804 INFO L226 Difference]: Without dead ends: 36 [2020-11-22 13:01:37,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:01:37,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-22 13:01:37,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-22 13:01:37,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-22 13:01:37,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2020-11-22 13:01:37,810 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2020-11-22 13:01:37,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:37,810 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2020-11-22 13:01:37,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:01:37,811 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2020-11-22 13:01:37,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:01:37,812 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:37,812 INFO L422 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] [2020-11-22 13:01:38,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:01:38,028 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:38,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:38,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1264883623, now seen corresponding path program 1 times [2020-11-22 13:01:38,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:01:38,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586836817] [2020-11-22 13:01:38,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/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 [2020-11-22 13:01:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:38,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:01:38,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:38,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:38,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:38,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586836817] [2020-11-22 13:01:38,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:38,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:01:38,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088714447] [2020-11-22 13:01:38,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:01:38,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:01:38,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:01:38,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:01:38,232 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2020-11-22 13:01:38,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:38,308 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2020-11-22 13:01:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:01:38,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-22 13:01:38,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:38,315 INFO L225 Difference]: With dead ends: 87 [2020-11-22 13:01:38,315 INFO L226 Difference]: Without dead ends: 58 [2020-11-22 13:01:38,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:01:38,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-22 13:01:38,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-11-22 13:01:38,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-22 13:01:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2020-11-22 13:01:38,330 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 25 [2020-11-22 13:01:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:38,331 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2020-11-22 13:01:38,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:01:38,331 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2020-11-22 13:01:38,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:01:38,333 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:38,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:01:38,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:01:38,554 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:38,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:38,554 INFO L82 PathProgramCache]: Analyzing trace with hash -703728504, now seen corresponding path program 1 times [2020-11-22 13:01:38,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:01:38,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884097035] [2020-11-22 13:01:38,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/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 [2020-11-22 13:01:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:38,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:01:38,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:38,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:38,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:38,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:38,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884097035] [2020-11-22 13:01:38,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:38,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:01:38,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880150458] [2020-11-22 13:01:38,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:01:38,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:01:38,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:01:38,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:01:38,778 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 5 states. [2020-11-22 13:01:38,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:38,847 INFO L93 Difference]: Finished difference Result 145 states and 205 transitions. [2020-11-22 13:01:38,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:01:38,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-22 13:01:38,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:38,852 INFO L225 Difference]: With dead ends: 145 [2020-11-22 13:01:38,852 INFO L226 Difference]: Without dead ends: 96 [2020-11-22 13:01:38,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:01:38,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-11-22 13:01:38,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 59. [2020-11-22 13:01:38,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-22 13:01:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2020-11-22 13:01:38,863 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 82 transitions. Word has length 31 [2020-11-22 13:01:38,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:38,864 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 82 transitions. [2020-11-22 13:01:38,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:01:38,864 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2020-11-22 13:01:38,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:01:38,868 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:38,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:01:39,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:01:39,080 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:39,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:39,081 INFO L82 PathProgramCache]: Analyzing trace with hash 229735205, now seen corresponding path program 1 times [2020-11-22 13:01:39,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:01:39,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957695829] [2020-11-22 13:01:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/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 [2020-11-22 13:01:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:39,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:01:39,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:39,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:39,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:39,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957695829] [2020-11-22 13:01:39,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:39,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:01:39,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508310013] [2020-11-22 13:01:39,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:01:39,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:01:39,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:01:39,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:01:39,384 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. Second operand 5 states. [2020-11-22 13:01:39,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:39,513 INFO L93 Difference]: Finished difference Result 275 states and 393 transitions. [2020-11-22 13:01:39,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:01:39,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-22 13:01:39,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:39,516 INFO L225 Difference]: With dead ends: 275 [2020-11-22 13:01:39,516 INFO L226 Difference]: Without dead ends: 223 [2020-11-22 13:01:39,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:01:39,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-11-22 13:01:39,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 103. [2020-11-22 13:01:39,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-22 13:01:39,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 142 transitions. [2020-11-22 13:01:39,549 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 142 transitions. Word has length 31 [2020-11-22 13:01:39,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:39,550 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 142 transitions. [2020-11-22 13:01:39,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:01:39,550 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 142 transitions. [2020-11-22 13:01:39,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:01:39,551 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:39,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:01:39,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:01:39,752 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:39,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:39,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1892298141, now seen corresponding path program 1 times [2020-11-22 13:01:39,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:01:39,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120799951] [2020-11-22 13:01:39,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 13:01:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:39,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:01:39,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:40,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:40,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120799951] [2020-11-22 13:01:40,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:40,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:01:40,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821605566] [2020-11-22 13:01:40,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:01:40,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:01:40,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:01:40,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:01:40,026 INFO L87 Difference]: Start difference. First operand 103 states and 142 transitions. Second operand 5 states. [2020-11-22 13:01:40,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:40,226 INFO L93 Difference]: Finished difference Result 376 states and 523 transitions. [2020-11-22 13:01:40,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:01:40,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-22 13:01:40,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:40,229 INFO L225 Difference]: With dead ends: 376 [2020-11-22 13:01:40,229 INFO L226 Difference]: Without dead ends: 280 [2020-11-22 13:01:40,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:01:40,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-11-22 13:01:40,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2020-11-22 13:01:40,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-22 13:01:40,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2020-11-22 13:01:40,264 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 32 [2020-11-22 13:01:40,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:40,265 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2020-11-22 13:01:40,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:01:40,265 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2020-11-22 13:01:40,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:01:40,271 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:40,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:01:40,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:01:40,494 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:40,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:40,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1659899010, now seen corresponding path program 1 times [2020-11-22 13:01:40,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:01:40,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191585026] [2020-11-22 13:01:40,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/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 [2020-11-22 13:01:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:40,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:01:40,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:40,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:40,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:40,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:40,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191585026] [2020-11-22 13:01:40,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:40,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:01:40,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871159097] [2020-11-22 13:01:40,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:01:40,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:01:40,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:01:40,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:01:40,747 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand 6 states. [2020-11-22 13:01:40,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:40,814 INFO L93 Difference]: Finished difference Result 279 states and 379 transitions. [2020-11-22 13:01:40,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:01:40,816 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-11-22 13:01:40,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:40,817 INFO L225 Difference]: With dead ends: 279 [2020-11-22 13:01:40,817 INFO L226 Difference]: Without dead ends: 184 [2020-11-22 13:01:40,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:01:40,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-22 13:01:40,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 106. [2020-11-22 13:01:40,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-22 13:01:40,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions. [2020-11-22 13:01:40,847 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 143 transitions. Word has length 32 [2020-11-22 13:01:40,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:40,848 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 143 transitions. [2020-11-22 13:01:40,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:01:40,848 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 143 transitions. [2020-11-22 13:01:40,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:01:40,853 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:40,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:01:41,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 13:01:41,069 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:41,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:41,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1073092996, now seen corresponding path program 1 times [2020-11-22 13:01:41,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:01:41,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660071186] [2020-11-22 13:01:41,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 13:01:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:41,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:01:41,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:41,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:41,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:41,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660071186] [2020-11-22 13:01:41,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:41,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:01:41,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257117552] [2020-11-22 13:01:41,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:01:41,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:01:41,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:01:41,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:01:41,297 INFO L87 Difference]: Start difference. First operand 106 states and 143 transitions. Second operand 4 states. [2020-11-22 13:01:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:41,372 INFO L93 Difference]: Finished difference Result 338 states and 459 transitions. [2020-11-22 13:01:41,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:01:41,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-11-22 13:01:41,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:41,375 INFO L225 Difference]: With dead ends: 338 [2020-11-22 13:01:41,375 INFO L226 Difference]: Without dead ends: 239 [2020-11-22 13:01:41,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:01:41,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-11-22 13:01:41,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 189. [2020-11-22 13:01:41,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-11-22 13:01:41,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 254 transitions. [2020-11-22 13:01:41,417 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 254 transitions. Word has length 32 [2020-11-22 13:01:41,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:41,417 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 254 transitions. [2020-11-22 13:01:41,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:01:41,417 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 254 transitions. [2020-11-22 13:01:41,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 13:01:41,419 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:41,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:01:41,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 13:01:41,633 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:41,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:41,633 INFO L82 PathProgramCache]: Analyzing trace with hash -389810492, now seen corresponding path program 1 times [2020-11-22 13:01:41,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:01:41,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755079297] [2020-11-22 13:01:41,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/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 [2020-11-22 13:01:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:41,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:01:41,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:41,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:41,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:41,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:41,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755079297] [2020-11-22 13:01:41,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:41,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:01:41,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933572263] [2020-11-22 13:01:41,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:01:41,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:01:41,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:01:41,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:01:41,888 INFO L87 Difference]: Start difference. First operand 189 states and 254 transitions. Second operand 3 states. [2020-11-22 13:01:41,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:41,988 INFO L93 Difference]: Finished difference Result 307 states and 412 transitions. [2020-11-22 13:01:41,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:01:41,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-11-22 13:01:41,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:41,991 INFO L225 Difference]: With dead ends: 307 [2020-11-22 13:01:41,991 INFO L226 Difference]: Without dead ends: 305 [2020-11-22 13:01:41,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:01:41,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-11-22 13:01:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 239. [2020-11-22 13:01:42,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-11-22 13:01:42,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 328 transitions. [2020-11-22 13:01:42,027 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 328 transitions. Word has length 33 [2020-11-22 13:01:42,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:42,028 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 328 transitions. [2020-11-22 13:01:42,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:01:42,028 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 328 transitions. [2020-11-22 13:01:42,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-22 13:01:42,029 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:42,029 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:01:42,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 13:01:42,242 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:42,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:42,243 INFO L82 PathProgramCache]: Analyzing trace with hash 149557046, now seen corresponding path program 1 times [2020-11-22 13:01:42,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:01:42,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996401863] [2020-11-22 13:01:42,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-22 13:01:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:01:43,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:01:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:01:45,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:01:45,445 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:01:45,445 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:01:45,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-22 13:01:45,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:01:45 BoogieIcfgContainer [2020-11-22 13:01:45,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:01:45,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:01:45,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:01:45,850 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:01:45,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:01:36" (3/4) ... [2020-11-22 13:01:45,853 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:01:46,048 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3bd363ca-32c5-4d61-ad9c-51cb7f159ba2/bin/utaipan/witness.graphml [2020-11-22 13:01:46,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:01:46,050 INFO L168 Benchmark]: Toolchain (without parser) took 13205.87 ms. Allocated memory was 71.3 MB in the beginning and 113.2 MB in the end (delta: 41.9 MB). Free memory was 49.2 MB in the beginning and 84.6 MB in the end (delta: -35.4 MB). Peak memory consumption was 59.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:46,051 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 32.0 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:01:46,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.44 ms. Allocated memory is still 71.3 MB. Free memory was 49.0 MB in the beginning and 38.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:46,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.52 ms. Allocated memory is still 71.3 MB. Free memory was 38.2 MB in the beginning and 35.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:46,052 INFO L168 Benchmark]: Boogie Preprocessor took 72.05 ms. Allocated memory is still 71.3 MB. Free memory was 35.0 MB in the beginning and 32.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:46,053 INFO L168 Benchmark]: RCFGBuilder took 2555.44 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 32.6 MB in the beginning and 69.2 MB in the end (delta: -36.6 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:46,054 INFO L168 Benchmark]: TraceAbstraction took 9629.51 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 69.2 MB in the beginning and 50.9 MB in the end (delta: 18.3 MB). Peak memory consumption was 38.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:46,054 INFO L168 Benchmark]: Witness Printer took 198.51 ms. Allocated memory is still 113.2 MB. Free memory was 50.9 MB in the beginning and 84.6 MB in the end (delta: -33.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:46,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 32.0 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 676.44 ms. Allocated memory is still 71.3 MB. Free memory was 49.0 MB in the beginning and 38.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.52 ms. Allocated memory is still 71.3 MB. Free memory was 38.2 MB in the beginning and 35.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.05 ms. Allocated memory is still 71.3 MB. Free memory was 35.0 MB in the beginning and 32.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2555.44 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 32.6 MB in the beginning and 69.2 MB in the end (delta: -36.6 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9629.51 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 69.2 MB in the beginning and 50.9 MB in the end (delta: 18.3 MB). Peak memory consumption was 38.1 MB. Max. memory is 16.1 GB. * Witness Printer took 198.51 ms. Allocated memory is still 113.2 MB. Free memory was 50.9 MB in the beginning and 84.6 MB in the end (delta: -33.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int waterLevel = 1; [L88] int methaneLevelCritical = 0; [L181] int cleanupTimeShifts = 4; [L294] int pumpRunning = 0; [L295] int systemActive = 1; [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L878] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L259] int retValue_acc ; [L260] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L883] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] int splverifierCounter ; [L449] int tmp ; [L450] int tmp___0 ; [L451] int tmp___1 ; [L452] int tmp___2 ; [L455] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L457] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L459] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L465] tmp = __VERIFIER_nondet_int() [L467] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L105] COND TRUE waterLevel < 2 [L106] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L117] COND FALSE !(\read(methaneLevelCritical)) [L120] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L302] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L309] COND TRUE \read(systemActive) [L331] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L334] COND TRUE ! pumpRunning [L428] int retValue_acc ; [L429] int tmp ; [L430] int tmp___0 ; [L167] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND FALSE !(waterLevel < 2) [L174] retValue_acc = 0 [L175] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] tmp = isHighWaterSensorDry() [L436] COND FALSE !(\read(tmp)) [L439] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] retValue_acc = tmp___0 [L442] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L336] tmp = isHighWaterLevel() [L338] COND TRUE \read(tmp) [L359] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L888] int tmp ; [L889] int tmp___0 ; [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L900] COND FALSE !(\read(methAndRunningLastTime)) [L905] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L457] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L459] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L465] tmp = __VERIFIER_nondet_int() [L467] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L302] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L93] COND TRUE waterLevel > 0 [L94] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L309] COND TRUE \read(systemActive) [L331] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L334] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L888] int tmp ; [L889] int tmp___0 ; [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec2_product33.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.3s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 667 SDtfs, 748 SDslu, 1059 SDs, 0 SdLazy, 120 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 550 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 531 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 30088 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2060 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...