./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/lockfree-3.0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.0.i -s /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 951d8064545e4b50cbbf102bea023e631caaec99 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.0.i -s /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 951d8064545e4b50cbbf102bea023e631caaec99 ....................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:24:22,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:22,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:22,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:22,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:22,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:22,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:22,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:22,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:22,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:22,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:22,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:22,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:22,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:22,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:22,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:22,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:22,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:22,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:22,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:22,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:22,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:22,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:22,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:22,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:22,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:22,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:22,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:22,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:22,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:22,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:22,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:22,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:22,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:22,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:22,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:22,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:22,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:22,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:22,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:22,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:22,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:24:22,514 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:22,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:22,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:22,515 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:22,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:22,515 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:22,516 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:24:22,516 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:22,516 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:22,516 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:24:22,516 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:24:22,516 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:22,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:24:22,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:24:22,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:22,518 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:22,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:24:22,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:24:22,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:22,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:22,519 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:24:22,519 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:24:22,519 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:24:22,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:22,519 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:22,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:22,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:22,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:22,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:22,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:22,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:22,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:22,521 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:24:22,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:24:22,521 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:22,521 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 951d8064545e4b50cbbf102bea023e631caaec99 [2019-10-22 11:24:22,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:22,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:22,560 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:22,562 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:22,564 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:22,564 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/../../sv-benchmarks/c/memsafety/lockfree-3.0.i [2019-10-22 11:24:22,609 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/data/816809e45/6e2847b6a84a40e4818414afe5bdc5c0/FLAG8dc02549d [2019-10-22 11:24:23,056 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:23,056 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/sv-benchmarks/c/memsafety/lockfree-3.0.i [2019-10-22 11:24:23,069 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/data/816809e45/6e2847b6a84a40e4818414afe5bdc5c0/FLAG8dc02549d [2019-10-22 11:24:23,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/data/816809e45/6e2847b6a84a40e4818414afe5bdc5c0 [2019-10-22 11:24:23,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:23,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:23,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:23,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:23,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:23,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:23" (1/1) ... [2019-10-22 11:24:23,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511c7b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23, skipping insertion in model container [2019-10-22 11:24:23,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:23" (1/1) ... [2019-10-22 11:24:23,433 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:23,465 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:23,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:23,798 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:23,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:23,905 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:23,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23 WrapperNode [2019-10-22 11:24:23,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:23,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:23,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:23,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:23,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23" (1/1) ... [2019-10-22 11:24:23,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23" (1/1) ... [2019-10-22 11:24:23,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:23,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:23,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:23,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:23,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23" (1/1) ... [2019-10-22 11:24:23,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23" (1/1) ... [2019-10-22 11:24:23,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23" (1/1) ... [2019-10-22 11:24:23,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23" (1/1) ... [2019-10-22 11:24:23,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23" (1/1) ... [2019-10-22 11:24:23,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23" (1/1) ... [2019-10-22 11:24:24,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23" (1/1) ... [2019-10-22 11:24:24,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:24,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:24,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:24,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:24,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:24:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:24:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:24:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:24:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:24:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:24:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:24,469 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:24,469 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 11:24:24,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:24 BoogieIcfgContainer [2019-10-22 11:24:24,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:24,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:24,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:24,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:24,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:23" (1/3) ... [2019-10-22 11:24:24,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7fd77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:24, skipping insertion in model container [2019-10-22 11:24:24,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:23" (2/3) ... [2019-10-22 11:24:24,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7fd77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:24, skipping insertion in model container [2019-10-22 11:24:24,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:24" (3/3) ... [2019-10-22 11:24:24,478 INFO L109 eAbstractionObserver]: Analyzing ICFG lockfree-3.0.i [2019-10-22 11:24:24,487 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:24,494 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-10-22 11:24:24,501 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-10-22 11:24:24,520 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:24,520 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:24:24,520 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:24,520 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:24,521 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:24,521 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:24,521 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:24,521 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:24,540 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2019-10-22 11:24:24,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:24:24,546 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:24,547 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:24:24,549 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:24:24,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:24,553 INFO L82 PathProgramCache]: Analyzing trace with hash 28817120, now seen corresponding path program 1 times [2019-10-22 11:24:24,560 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:24,561 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142585356] [2019-10-22 11:24:24,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:24,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:24,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:24,660 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142585356] [2019-10-22 11:24:24,661 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:24,661 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:24,661 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079588005] [2019-10-22 11:24:24,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:24:24,666 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:24,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:24:24,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:24:24,682 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2019-10-22 11:24:24,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:24,694 INFO L93 Difference]: Finished difference Result 62 states and 79 transitions. [2019-10-22 11:24:24,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:24:24,695 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-10-22 11:24:24,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:24,705 INFO L225 Difference]: With dead ends: 62 [2019-10-22 11:24:24,705 INFO L226 Difference]: Without dead ends: 60 [2019-10-22 11:24:24,707 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:24:24,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-10-22 11:24:24,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-10-22 11:24:24,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-10-22 11:24:24,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 77 transitions. [2019-10-22 11:24:24,738 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 77 transitions. Word has length 5 [2019-10-22 11:24:24,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:24,738 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 77 transitions. [2019-10-22 11:24:24,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:24:24,738 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2019-10-22 11:24:24,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:24:24,739 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:24,739 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:24,739 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:24:24,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:24,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1806850988, now seen corresponding path program 1 times [2019-10-22 11:24:24,740 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:24,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704289228] [2019-10-22 11:24:24,740 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:24,740 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:24,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:24,772 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704289228] [2019-10-22 11:24:24,772 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:24,772 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:24:24,772 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662734424] [2019-10-22 11:24:24,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:24,774 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:24,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:24,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:24,774 INFO L87 Difference]: Start difference. First operand 60 states and 77 transitions. Second operand 3 states. [2019-10-22 11:24:24,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:24,802 INFO L93 Difference]: Finished difference Result 61 states and 78 transitions. [2019-10-22 11:24:24,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:24,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-10-22 11:24:24,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:24,804 INFO L225 Difference]: With dead ends: 61 [2019-10-22 11:24:24,806 INFO L226 Difference]: Without dead ends: 61 [2019-10-22 11:24:24,807 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:24,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-10-22 11:24:24,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-10-22 11:24:24,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-10-22 11:24:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2019-10-22 11:24:24,817 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 78 transitions. Word has length 7 [2019-10-22 11:24:24,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:24,818 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 78 transitions. [2019-10-22 11:24:24,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:24,818 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2019-10-22 11:24:24,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:24:24,818 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:24,818 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:24,819 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:24:24,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:24,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1806910570, now seen corresponding path program 1 times [2019-10-22 11:24:24,820 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:24,820 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766309731] [2019-10-22 11:24:24,821 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:24,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:24,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:24,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:24,876 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766309731] [2019-10-22 11:24:24,876 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:24,876 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:24,876 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43781372] [2019-10-22 11:24:24,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:24,877 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:24,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:24,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:24,877 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand 3 states. [2019-10-22 11:24:24,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:24,914 INFO L93 Difference]: Finished difference Result 107 states and 141 transitions. [2019-10-22 11:24:24,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:24,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-10-22 11:24:24,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:24,915 INFO L225 Difference]: With dead ends: 107 [2019-10-22 11:24:24,916 INFO L226 Difference]: Without dead ends: 107 [2019-10-22 11:24:24,916 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:24,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-10-22 11:24:24,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 89. [2019-10-22 11:24:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-10-22 11:24:24,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 133 transitions. [2019-10-22 11:24:24,923 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 133 transitions. Word has length 7 [2019-10-22 11:24:24,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:24,924 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 133 transitions. [2019-10-22 11:24:24,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:24,924 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 133 transitions. [2019-10-22 11:24:24,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:24:24,924 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:24,924 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:24,925 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:24:24,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:24,925 INFO L82 PathProgramCache]: Analyzing trace with hash 177749355, now seen corresponding path program 1 times [2019-10-22 11:24:24,925 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:24,925 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644003396] [2019-10-22 11:24:24,925 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:24,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:24,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:24,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644003396] [2019-10-22 11:24:24,964 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:24,964 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:24:24,964 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322813900] [2019-10-22 11:24:24,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:24:24,965 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:24,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:24:24,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:24:24,965 INFO L87 Difference]: Start difference. First operand 89 states and 133 transitions. Second operand 4 states. [2019-10-22 11:24:25,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:25,020 INFO L93 Difference]: Finished difference Result 97 states and 142 transitions. [2019-10-22 11:24:25,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:24:25,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-10-22 11:24:25,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:25,022 INFO L225 Difference]: With dead ends: 97 [2019-10-22 11:24:25,022 INFO L226 Difference]: Without dead ends: 97 [2019-10-22 11:24:25,023 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:25,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-10-22 11:24:25,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 91. [2019-10-22 11:24:25,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-10-22 11:24:25,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 135 transitions. [2019-10-22 11:24:25,030 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 135 transitions. Word has length 8 [2019-10-22 11:24:25,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:25,030 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 135 transitions. [2019-10-22 11:24:25,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:24:25,030 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 135 transitions. [2019-10-22 11:24:25,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:24:25,031 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:25,031 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:25,031 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:24:25,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:25,032 INFO L82 PathProgramCache]: Analyzing trace with hash 179651426, now seen corresponding path program 1 times [2019-10-22 11:24:25,032 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:25,032 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572256365] [2019-10-22 11:24:25,032 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,032 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:25,060 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572256365] [2019-10-22 11:24:25,060 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:25,060 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:25,061 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149453068] [2019-10-22 11:24:25,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:25,061 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:25,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:25,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:25,061 INFO L87 Difference]: Start difference. First operand 91 states and 135 transitions. Second operand 3 states. [2019-10-22 11:24:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:25,128 INFO L93 Difference]: Finished difference Result 169 states and 253 transitions. [2019-10-22 11:24:25,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:25,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-22 11:24:25,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:25,130 INFO L225 Difference]: With dead ends: 169 [2019-10-22 11:24:25,130 INFO L226 Difference]: Without dead ends: 166 [2019-10-22 11:24:25,130 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:25,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-10-22 11:24:25,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 145. [2019-10-22 11:24:25,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-10-22 11:24:25,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 238 transitions. [2019-10-22 11:24:25,157 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 238 transitions. Word has length 8 [2019-10-22 11:24:25,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:25,157 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 238 transitions. [2019-10-22 11:24:25,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:25,157 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 238 transitions. [2019-10-22 11:24:25,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:24:25,157 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:25,157 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:25,158 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:24:25,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:25,158 INFO L82 PathProgramCache]: Analyzing trace with hash 179596397, now seen corresponding path program 1 times [2019-10-22 11:24:25,158 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:25,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643305244] [2019-10-22 11:24:25,159 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,159 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:25,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643305244] [2019-10-22 11:24:25,250 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:25,250 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:25,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884384459] [2019-10-22 11:24:25,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:25,251 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:25,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:25,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:25,252 INFO L87 Difference]: Start difference. First operand 145 states and 238 transitions. Second operand 3 states. [2019-10-22 11:24:25,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:25,401 INFO L93 Difference]: Finished difference Result 219 states and 343 transitions. [2019-10-22 11:24:25,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:25,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-22 11:24:25,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:25,405 INFO L225 Difference]: With dead ends: 219 [2019-10-22 11:24:25,405 INFO L226 Difference]: Without dead ends: 219 [2019-10-22 11:24:25,406 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-10-22 11:24:25,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 196. [2019-10-22 11:24:25,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2019-10-22 11:24:25,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 328 transitions. [2019-10-22 11:24:25,438 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 328 transitions. Word has length 8 [2019-10-22 11:24:25,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:25,438 INFO L462 AbstractCegarLoop]: Abstraction has 196 states and 328 transitions. [2019-10-22 11:24:25,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:25,438 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 328 transitions. [2019-10-22 11:24:25,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:24:25,439 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:25,439 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:25,439 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:24:25,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:25,439 INFO L82 PathProgramCache]: Analyzing trace with hash 179596398, now seen corresponding path program 1 times [2019-10-22 11:24:25,440 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:25,440 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418367855] [2019-10-22 11:24:25,440 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,440 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:25,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418367855] [2019-10-22 11:24:25,526 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:25,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:25,527 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151235574] [2019-10-22 11:24:25,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:25,527 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:25,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:25,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:25,528 INFO L87 Difference]: Start difference. First operand 196 states and 328 transitions. Second operand 3 states. [2019-10-22 11:24:25,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:25,592 INFO L93 Difference]: Finished difference Result 214 states and 334 transitions. [2019-10-22 11:24:25,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:25,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-22 11:24:25,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:25,594 INFO L225 Difference]: With dead ends: 214 [2019-10-22 11:24:25,594 INFO L226 Difference]: Without dead ends: 214 [2019-10-22 11:24:25,595 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:25,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2019-10-22 11:24:25,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 194. [2019-10-22 11:24:25,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-10-22 11:24:25,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 320 transitions. [2019-10-22 11:24:25,606 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 320 transitions. Word has length 8 [2019-10-22 11:24:25,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:25,606 INFO L462 AbstractCegarLoop]: Abstraction has 194 states and 320 transitions. [2019-10-22 11:24:25,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:25,606 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 320 transitions. [2019-10-22 11:24:25,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:24:25,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:25,607 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:25,607 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:24:25,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:25,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1272529015, now seen corresponding path program 1 times [2019-10-22 11:24:25,608 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:25,608 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838354600] [2019-10-22 11:24:25,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:25,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:25,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838354600] [2019-10-22 11:24:25,651 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:25,651 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:25,651 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053436478] [2019-10-22 11:24:25,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:25,652 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:25,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:25,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:25,652 INFO L87 Difference]: Start difference. First operand 194 states and 320 transitions. Second operand 6 states. [2019-10-22 11:24:25,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:25,728 INFO L93 Difference]: Finished difference Result 417 states and 647 transitions. [2019-10-22 11:24:25,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:25,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-10-22 11:24:25,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:25,731 INFO L225 Difference]: With dead ends: 417 [2019-10-22 11:24:25,731 INFO L226 Difference]: Without dead ends: 417 [2019-10-22 11:24:25,731 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:25,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2019-10-22 11:24:25,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 330. [2019-10-22 11:24:25,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-22 11:24:25,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 544 transitions. [2019-10-22 11:24:25,762 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 544 transitions. Word has length 9 [2019-10-22 11:24:25,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:25,762 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 544 transitions. [2019-10-22 11:24:25,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:25,762 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 544 transitions. [2019-10-22 11:24:25,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:24:25,763 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:25,763 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:25,763 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:24:25,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:25,763 INFO L82 PathProgramCache]: Analyzing trace with hash 844095278, now seen corresponding path program 1 times [2019-10-22 11:24:25,764 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:25,764 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009080243] [2019-10-22 11:24:25,764 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,764 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:25,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:25,829 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009080243] [2019-10-22 11:24:25,829 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:25,829 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:25,829 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560558335] [2019-10-22 11:24:25,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:25,830 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:25,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:25,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:25,830 INFO L87 Difference]: Start difference. First operand 330 states and 544 transitions. Second operand 6 states. [2019-10-22 11:24:25,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:25,902 INFO L93 Difference]: Finished difference Result 754 states and 1156 transitions. [2019-10-22 11:24:25,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:25,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-10-22 11:24:25,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:25,905 INFO L225 Difference]: With dead ends: 754 [2019-10-22 11:24:25,905 INFO L226 Difference]: Without dead ends: 754 [2019-10-22 11:24:25,906 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:25,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2019-10-22 11:24:25,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 546. [2019-10-22 11:24:25,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2019-10-22 11:24:25,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 864 transitions. [2019-10-22 11:24:25,925 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 864 transitions. Word has length 10 [2019-10-22 11:24:25,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:25,926 INFO L462 AbstractCegarLoop]: Abstraction has 546 states and 864 transitions. [2019-10-22 11:24:25,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:25,926 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 864 transitions. [2019-10-22 11:24:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 11:24:25,927 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:25,927 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:25,927 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:24:25,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:25,928 INFO L82 PathProgramCache]: Analyzing trace with hash -359933169, now seen corresponding path program 1 times [2019-10-22 11:24:25,928 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:25,928 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370428729] [2019-10-22 11:24:25,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:25,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:25,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370428729] [2019-10-22 11:24:25,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:25,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:25,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012551281] [2019-10-22 11:24:25,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:25,987 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:25,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:25,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:25,988 INFO L87 Difference]: Start difference. First operand 546 states and 864 transitions. Second operand 5 states. [2019-10-22 11:24:26,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:26,043 INFO L93 Difference]: Finished difference Result 834 states and 1334 transitions. [2019-10-22 11:24:26,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:26,043 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-10-22 11:24:26,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:26,047 INFO L225 Difference]: With dead ends: 834 [2019-10-22 11:24:26,047 INFO L226 Difference]: Without dead ends: 834 [2019-10-22 11:24:26,047 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:26,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2019-10-22 11:24:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 816. [2019-10-22 11:24:26,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2019-10-22 11:24:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1326 transitions. [2019-10-22 11:24:26,065 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1326 transitions. Word has length 15 [2019-10-22 11:24:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:26,066 INFO L462 AbstractCegarLoop]: Abstraction has 816 states and 1326 transitions. [2019-10-22 11:24:26,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1326 transitions. [2019-10-22 11:24:26,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 11:24:26,067 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:26,067 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:26,067 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION]=== [2019-10-22 11:24:26,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:26,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1076944598, now seen corresponding path program 1 times [2019-10-22 11:24:26,068 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:26,068 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139208816] [2019-10-22 11:24:26,068 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:26,068 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:26,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:26,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:26,119 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139208816] [2019-10-22 11:24:26,119 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994505368] [2019-10-22 11:24:26,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:24:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:26,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:24:26,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:26,244 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:26,246 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:26,249 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:24:26,250 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:24:26,287 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:26,288 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [602845147] [2019-10-22 11:24:26,295 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 16 [2019-10-22 11:24:26,341 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:24:26,342 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:24:26,639 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:24:26,639 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:24:26,644 INFO L168 Benchmark]: Toolchain (without parser) took 3224.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 937.8 MB in the beginning and 904.3 MB in the end (delta: 33.6 MB). Peak memory consumption was 187.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:26,644 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:26,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 486.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:26,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:26,646 INFO L168 Benchmark]: Boogie Preprocessor took 30.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:26,646 INFO L168 Benchmark]: RCFGBuilder took 468.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:26,647 INFO L168 Benchmark]: TraceAbstraction took 2170.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.3 MB in the end (delta: 190.1 MB). Peak memory consumption was 190.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:26,655 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 486.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 468.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2170.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.3 MB in the end (delta: 190.1 MB). Peak memory consumption was 190.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:24:28,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:28,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:28,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:28,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:28,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:28,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:28,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:28,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:28,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:28,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:28,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:28,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:28,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:28,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:28,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:28,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:28,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:28,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:28,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:28,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:28,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:28,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:28,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:28,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:28,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:28,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:28,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:28,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:28,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:28,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:28,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:28,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:28,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:28,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:28,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:28,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:28,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:28,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:28,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:28,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:28,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-10-22 11:24:28,803 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:28,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:28,804 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:28,804 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:28,804 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:28,804 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:28,804 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:28,804 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:28,805 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:28,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:24:28,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:24:28,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:28,806 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:28,806 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:24:28,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:24:28,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:28,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:28,807 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:24:28,807 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:24:28,807 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:24:28,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:28,807 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:24:28,807 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:24:28,808 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:28,808 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:24:28,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:28,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:28,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:28,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:28,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:28,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:28,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:28,809 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:24:28,809 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:24:28,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:28,809 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 951d8064545e4b50cbbf102bea023e631caaec99 [2019-10-22 11:24:28,841 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:28,854 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:28,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:28,862 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:28,862 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:28,863 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/../../sv-benchmarks/c/memsafety/lockfree-3.0.i [2019-10-22 11:24:28,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/data/eea89ec6c/364ce3eeced346d69017487be9508fed/FLAGc4c86fba5 [2019-10-22 11:24:29,383 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:29,383 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/sv-benchmarks/c/memsafety/lockfree-3.0.i [2019-10-22 11:24:29,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/data/eea89ec6c/364ce3eeced346d69017487be9508fed/FLAGc4c86fba5 [2019-10-22 11:24:29,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/data/eea89ec6c/364ce3eeced346d69017487be9508fed [2019-10-22 11:24:29,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:29,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:29,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:29,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:29,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:29,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:29" (1/1) ... [2019-10-22 11:24:29,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f10585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:29, skipping insertion in model container [2019-10-22 11:24:29,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:29" (1/1) ... [2019-10-22 11:24:29,695 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:29,742 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:30,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:30,032 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:30,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:30,218 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:30,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30 WrapperNode [2019-10-22 11:24:30,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:30,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:30,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:30,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:30,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30" (1/1) ... [2019-10-22 11:24:30,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30" (1/1) ... [2019-10-22 11:24:30,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:30,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:30,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:30,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:30,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30" (1/1) ... [2019-10-22 11:24:30,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30" (1/1) ... [2019-10-22 11:24:30,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30" (1/1) ... [2019-10-22 11:24:30,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30" (1/1) ... [2019-10-22 11:24:30,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30" (1/1) ... [2019-10-22 11:24:30,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30" (1/1) ... [2019-10-22 11:24:30,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30" (1/1) ... [2019-10-22 11:24:30,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:30,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:30,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:30,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:30,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:30,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:24:30,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:24:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:24:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:24:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:24:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:24:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:30,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:30,864 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:30,865 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 11:24:30,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:30 BoogieIcfgContainer [2019-10-22 11:24:30,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:30,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:30,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:30,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:30,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:29" (1/3) ... [2019-10-22 11:24:30,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651c3927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:30, skipping insertion in model container [2019-10-22 11:24:30,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:30" (2/3) ... [2019-10-22 11:24:30,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651c3927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:30, skipping insertion in model container [2019-10-22 11:24:30,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:30" (3/3) ... [2019-10-22 11:24:30,872 INFO L109 eAbstractionObserver]: Analyzing ICFG lockfree-3.0.i [2019-10-22 11:24:30,882 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:30,889 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-10-22 11:24:30,900 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-10-22 11:24:30,920 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:30,920 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:24:30,920 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:30,920 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:30,921 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:30,921 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:30,921 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:30,921 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:30,937 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2019-10-22 11:24:30,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:24:30,945 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:30,945 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:24:30,947 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION]=== [2019-10-22 11:24:30,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:30,953 INFO L82 PathProgramCache]: Analyzing trace with hash 28701576, now seen corresponding path program 1 times [2019-10-22 11:24:30,963 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:30,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [259083617] [2019-10-22 11:24:30,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea16abf-de52-4bf5-bc31-95a8f2cd1868/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:31,212 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:31,213 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort FloatRoundingMode not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:24:31,218 INFO L168 Benchmark]: Toolchain (without parser) took 1537.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 947.0 MB in the beginning and 1.0 GB in the end (delta: -71.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:31,219 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:31,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -127.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:31,220 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:31,221 INFO L168 Benchmark]: Boogie Preprocessor took 43.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:31,221 INFO L168 Benchmark]: RCFGBuilder took 543.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:31,222 INFO L168 Benchmark]: TraceAbstraction took 348.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:31,225 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 538.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -127.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 543.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 348.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort FloatRoundingMode not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...