./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 788527977e7ebd7aa0a832758f41b65d3cbd270a ........................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 788527977e7ebd7aa0a832758f41b65d3cbd270a ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:20:35,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:20:35,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:20:35,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:20:35,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:20:35,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:20:35,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:20:35,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:20:35,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:20:35,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:20:35,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:20:35,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:20:35,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:20:35,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:20:35,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:20:35,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:20:35,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:20:35,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:20:35,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:20:35,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:20:35,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:20:35,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:20:35,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:20:35,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:20:35,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:20:35,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:20:35,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:20:35,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:20:35,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:20:35,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:20:35,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:20:35,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:20:35,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:20:35,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:20:35,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:20:35,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:20:35,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:20:35,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:20:35,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:20:35,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:20:35,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:20:35,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:20:35,698 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:20:35,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:20:35,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:20:35,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:20:35,700 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:20:35,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:20:35,701 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:20:35,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:20:35,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:20:35,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:20:35,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:20:35,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:20:35,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:20:35,702 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:20:35,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:20:35,703 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:20:35,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:20:35,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:20:35,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:20:35,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:20:35,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:20:35,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:20:35,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:20:35,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:20:35,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:20:35,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:20:35,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:20:35,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:20:35,706 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 788527977e7ebd7aa0a832758f41b65d3cbd270a [2019-11-15 22:20:35,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:20:35,740 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:20:35,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:20:35,745 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:20:35,745 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:20:35,746 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2019-11-15 22:20:35,806 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/data/996feb76f/7ab9cc23fc5249b2ba2e835307923d36/FLAG7ee11f916 [2019-11-15 22:20:36,143 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:20:36,143 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2019-11-15 22:20:36,150 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/data/996feb76f/7ab9cc23fc5249b2ba2e835307923d36/FLAG7ee11f916 [2019-11-15 22:20:36,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/data/996feb76f/7ab9cc23fc5249b2ba2e835307923d36 [2019-11-15 22:20:36,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:20:36,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:20:36,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:20:36,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:20:36,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:20:36,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:20:36" (1/1) ... [2019-11-15 22:20:36,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26cc7d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36, skipping insertion in model container [2019-11-15 22:20:36,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:20:36" (1/1) ... [2019-11-15 22:20:36,553 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:20:36,573 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:20:36,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:20:36,819 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:20:36,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:20:36,880 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:20:36,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36 WrapperNode [2019-11-15 22:20:36,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:20:36,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:20:36,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:20:36,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:20:36,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36" (1/1) ... [2019-11-15 22:20:36,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36" (1/1) ... [2019-11-15 22:20:36,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:20:36,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:20:36,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:20:36,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:20:36,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36" (1/1) ... [2019-11-15 22:20:36,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36" (1/1) ... [2019-11-15 22:20:36,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36" (1/1) ... [2019-11-15 22:20:36,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36" (1/1) ... [2019-11-15 22:20:36,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36" (1/1) ... [2019-11-15 22:20:36,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36" (1/1) ... [2019-11-15 22:20:36,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36" (1/1) ... [2019-11-15 22:20:36,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:20:36,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:20:36,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:20:36,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:20:36,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/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 [2019-11-15 22:20:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:20:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 22:20:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:20:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 22:20:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:20:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:20:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:20:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:20:37,480 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:20:37,481 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-15 22:20:37,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:20:37 BoogieIcfgContainer [2019-11-15 22:20:37,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:20:37,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:20:37,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:20:37,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:20:37,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:20:36" (1/3) ... [2019-11-15 22:20:37,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24766c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:20:37, skipping insertion in model container [2019-11-15 22:20:37,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:36" (2/3) ... [2019-11-15 22:20:37,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24766c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:20:37, skipping insertion in model container [2019-11-15 22:20:37,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:20:37" (3/3) ... [2019-11-15 22:20:37,489 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2019-11-15 22:20:37,498 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:20:37,521 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:20:37,531 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:20:37,552 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:20:37,552 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:20:37,552 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:20:37,553 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:20:37,553 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:20:37,553 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:20:37,553 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:20:37,553 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:20:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-11-15 22:20:37,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-15 22:20:37,576 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:20:37,577 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:20:37,581 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:20:37,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:20:37,587 INFO L82 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2019-11-15 22:20:37,594 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:20:37,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709982513] [2019-11-15 22:20:37,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:20:37,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:20:37,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:20:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:20:37,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:20:37,703 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709982513] [2019-11-15 22:20:37,703 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:20:37,703 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:20:37,704 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416049763] [2019-11-15 22:20:37,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:20:37,707 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:20:37,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:20:37,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:20:37,719 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2019-11-15 22:20:37,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:20:37,737 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2019-11-15 22:20:37,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:20:37,739 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-15 22:20:37,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:20:37,749 INFO L225 Difference]: With dead ends: 104 [2019-11-15 22:20:37,749 INFO L226 Difference]: Without dead ends: 50 [2019-11-15 22:20:37,752 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 [2019-11-15 22:20:37,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-15 22:20:37,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-11-15 22:20:37,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-15 22:20:37,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2019-11-15 22:20:37,788 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2019-11-15 22:20:37,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:20:37,788 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2019-11-15 22:20:37,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:20:37,788 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2019-11-15 22:20:37,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 22:20:37,789 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:20:37,789 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:20:37,789 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:20:37,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:20:37,789 INFO L82 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2019-11-15 22:20:37,789 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:20:37,790 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305340407] [2019-11-15 22:20:37,790 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:20:37,790 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:20:37,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:20:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:20:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:20:37,860 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:20:37,860 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:20:37,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:20:37 BoogieIcfgContainer [2019-11-15 22:20:37,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:20:37,883 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:20:37,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:20:37,883 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:20:37,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:20:37" (3/4) ... [2019-11-15 22:20:37,887 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:20:37,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:20:37,889 INFO L168 Benchmark]: Toolchain (without parser) took 1350.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -81.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:20:37,890 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:20:37,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:20:37,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.89 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:20:37,891 INFO L168 Benchmark]: Boogie Preprocessor took 42.44 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:20:37,892 INFO L168 Benchmark]: RCFGBuilder took 513.49 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: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:20:37,893 INFO L168 Benchmark]: TraceAbstraction took 399.88 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:20:37,893 INFO L168 Benchmark]: Witness Printer took 4.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:20:37,896 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 341.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.89 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.44 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 513.49 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: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 399.88 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 154]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 149, overapproximation of someBinaryArithmeticDOUBLEoperation at line 33, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryDOUBLEComparisonOperation at line 153. Possible FailurePath: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L149] double x = -0.0; [L20] double z; [L21] __int32_t sign = 0x80000000; [L22] __uint32_t r, t1, s1, ix1, q1; [L23] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] ieee_double_shape_type ew_u; [L27] ew_u.value = (x) [L28] EXPR ew_u.parts.msw [L28] (ix0) = ew_u.parts.msw [L29] EXPR ew_u.parts.lsw [L29] (ix1) = ew_u.parts.lsw [L32] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L33] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L150] double res = __ieee754_sqrt(x); [L153] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L153] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L154] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 73 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 22:20:40,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:20:40,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:20:40,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:20:40,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:20:40,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:20:40,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:20:40,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:20:40,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:20:40,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:20:40,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:20:40,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:20:40,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:20:40,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:20:40,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:20:40,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:20:40,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:20:40,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:20:40,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:20:40,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:20:40,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:20:40,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:20:40,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:20:40,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:20:40,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:20:40,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:20:40,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:20:40,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:20:40,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:20:40,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:20:40,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:20:40,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:20:40,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:20:40,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:20:40,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:20:40,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:20:40,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:20:40,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:20:40,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:20:40,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:20:40,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:20:40,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:20:40,087 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:20:40,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:20:40,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:20:40,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:20:40,089 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:20:40,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:20:40,089 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:20:40,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:20:40,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:20:40,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:20:40,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:20:40,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:20:40,090 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:20:40,090 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:20:40,090 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:20:40,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:20:40,091 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:20:40,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:20:40,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:20:40,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:20:40,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:20:40,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:20:40,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:20:40,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:20:40,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:20:40,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:20:40,093 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:20:40,093 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:20:40,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:20:40,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:20:40,093 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 788527977e7ebd7aa0a832758f41b65d3cbd270a [2019-11-15 22:20:40,123 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:20:40,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:20:40,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:20:40,138 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:20:40,139 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:20:40,139 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2019-11-15 22:20:40,193 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/data/9d4f1a122/e9ca033a74b04e1396a95c44d2096832/FLAG0c09ce682 [2019-11-15 22:20:40,584 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:20:40,584 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2019-11-15 22:20:40,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/data/9d4f1a122/e9ca033a74b04e1396a95c44d2096832/FLAG0c09ce682 [2019-11-15 22:20:40,928 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/data/9d4f1a122/e9ca033a74b04e1396a95c44d2096832 [2019-11-15 22:20:40,932 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:20:40,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:20:40,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:20:40,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:20:40,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:20:40,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:20:40" (1/1) ... [2019-11-15 22:20:40,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f520ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:40, skipping insertion in model container [2019-11-15 22:20:40,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:20:40" (1/1) ... [2019-11-15 22:20:40,952 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:20:40,988 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:20:41,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:20:41,251 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:20:41,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:20:41,402 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:20:41,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41 WrapperNode [2019-11-15 22:20:41,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:20:41,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:20:41,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:20:41,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:20:41,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41" (1/1) ... [2019-11-15 22:20:41,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41" (1/1) ... [2019-11-15 22:20:41,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:20:41,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:20:41,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:20:41,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:20:41,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41" (1/1) ... [2019-11-15 22:20:41,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41" (1/1) ... [2019-11-15 22:20:41,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41" (1/1) ... [2019-11-15 22:20:41,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41" (1/1) ... [2019-11-15 22:20:41,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41" (1/1) ... [2019-11-15 22:20:41,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41" (1/1) ... [2019-11-15 22:20:41,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41" (1/1) ... [2019-11-15 22:20:41,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:20:41,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:20:41,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:20:41,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:20:41,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/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 [2019-11-15 22:20:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 22:20:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 22:20:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:20:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 22:20:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:20:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:20:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 22:20:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:20:45,785 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:20:45,785 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-15 22:20:45,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:20:45 BoogieIcfgContainer [2019-11-15 22:20:45,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:20:45,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:20:45,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:20:45,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:20:45,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:20:40" (1/3) ... [2019-11-15 22:20:45,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc0ffb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:20:45, skipping insertion in model container [2019-11-15 22:20:45,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:20:41" (2/3) ... [2019-11-15 22:20:45,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc0ffb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:20:45, skipping insertion in model container [2019-11-15 22:20:45,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:20:45" (3/3) ... [2019-11-15 22:20:45,794 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2019-11-15 22:20:45,803 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:20:45,810 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:20:45,820 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:20:45,841 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:20:45,841 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:20:45,841 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:20:45,841 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:20:45,842 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:20:45,842 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:20:45,842 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:20:45,842 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:20:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-11-15 22:20:45,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-15 22:20:45,857 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:20:45,857 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:20:45,859 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:20:45,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:20:45,864 INFO L82 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2019-11-15 22:20:45,872 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:20:45,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517131165] [2019-11-15 22:20:45,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 22:20:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:20:46,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 22:20:46,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:20:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:20:46,281 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:20:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:20:46,286 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517131165] [2019-11-15 22:20:46,286 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:20:46,286 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 22:20:46,287 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149555051] [2019-11-15 22:20:46,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:20:46,290 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:20:46,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:20:46,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:20:46,302 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2019-11-15 22:20:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:20:46,327 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2019-11-15 22:20:46,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:20:46,329 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-15 22:20:46,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:20:46,347 INFO L225 Difference]: With dead ends: 104 [2019-11-15 22:20:46,347 INFO L226 Difference]: Without dead ends: 50 [2019-11-15 22:20:46,350 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:20:46,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-15 22:20:46,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-11-15 22:20:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-15 22:20:46,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2019-11-15 22:20:46,382 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2019-11-15 22:20:46,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:20:46,383 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2019-11-15 22:20:46,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:20:46,383 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2019-11-15 22:20:46,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 22:20:46,384 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:20:46,384 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:20:46,601 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:20:46,601 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:20:46,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:20:46,601 INFO L82 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2019-11-15 22:20:46,602 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:20:46,602 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302302027] [2019-11-15 22:20:46,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 22:20:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:20:47,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 22:20:47,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:20:47,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:20:47,127 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:20:47,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:20:47,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302302027] [2019-11-15 22:20:47,168 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:20:47,168 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 22:20:47,168 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298171398] [2019-11-15 22:20:47,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:20:47,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:20:47,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:20:47,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:20:47,170 INFO L87 Difference]: Start difference. First operand 50 states and 70 transitions. Second operand 6 states. [2019-11-15 22:20:49,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:20:49,001 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2019-11-15 22:20:49,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:20:49,338 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-11-15 22:20:49,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:20:49,339 INFO L225 Difference]: With dead ends: 59 [2019-11-15 22:20:49,339 INFO L226 Difference]: Without dead ends: 17 [2019-11-15 22:20:49,340 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:20:49,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-15 22:20:49,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-15 22:20:49,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-15 22:20:49,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-11-15 22:20:49,346 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2019-11-15 22:20:49,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:20:49,346 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-11-15 22:20:49,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:20:49,347 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-11-15 22:20:49,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:20:49,347 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:20:49,348 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:20:49,552 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 22:20:49,553 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:20:49,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:20:49,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1929218748, now seen corresponding path program 1 times [2019-11-15 22:20:49,554 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:20:49,554 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950316601] [2019-11-15 22:20:49,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 22:20:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:20:49,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 22:20:49,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:20:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:20:49,674 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:20:49,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:20:49,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:20:49,723 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950316601] [2019-11-15 22:20:49,723 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:20:49,723 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-15 22:20:49,724 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467349311] [2019-11-15 22:20:49,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 22:20:49,724 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:20:49,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 22:20:49,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:20:49,725 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 7 states. [2019-11-15 22:20:51,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:20:51,229 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-11-15 22:20:51,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:20:51,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-11-15 22:20:51,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:20:51,233 INFO L225 Difference]: With dead ends: 29 [2019-11-15 22:20:51,233 INFO L226 Difference]: Without dead ends: 26 [2019-11-15 22:20:51,233 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-15 22:20:51,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-15 22:20:51,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2019-11-15 22:20:51,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-15 22:20:51,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-11-15 22:20:51,238 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2019-11-15 22:20:51,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:20:51,238 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-11-15 22:20:51,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 22:20:51,239 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-11-15 22:20:51,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 22:20:51,239 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:20:51,239 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:20:51,452 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 22:20:51,452 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:20:51,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:20:51,453 INFO L82 PathProgramCache]: Analyzing trace with hash 239121058, now seen corresponding path program 1 times [2019-11-15 22:20:51,453 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:20:51,454 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932693250] [2019-11-15 22:20:51,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_afa88760-1a9a-4a9e-99dc-4dc24678f0d6/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-15 22:20:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:20:52,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-15 22:20:52,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:20:52,692 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 22:20:52,693 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) 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) [2019-11-15 22:20:52,699 INFO L168 Benchmark]: Toolchain (without parser) took 11764.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 952.3 MB in the beginning and 973.5 MB in the end (delta: -21.2 MB). Peak memory consumption was 95.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:20:52,699 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:20:52,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:20:52,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.85 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:20:52,701 INFO L168 Benchmark]: Boogie Preprocessor took 41.43 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:20:52,702 INFO L168 Benchmark]: RCFGBuilder took 4286.56 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:20:52,716 INFO L168 Benchmark]: TraceAbstraction took 6909.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 973.5 MB in the end (delta: 91.5 MB). Peak memory consumption was 91.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:20:52,719 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 466.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.85 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.43 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 4286.56 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6909.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 973.5 MB in the end (delta: 91.5 MB). Peak memory consumption was 91.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...