./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1300.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_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/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 ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f ............................................................................................................................................................................................................................................................................................................................... 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_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/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 ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f ...................................................................................................................................................................................................................................................................................................................................................... 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 20:44:28,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:44:28,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:44:28,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:44:28,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:44:28,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:44:28,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:44:28,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:44:28,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:44:28,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:44:28,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:44:28,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:44:28,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:44:28,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:44:28,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:44:28,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:44:28,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:44:28,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:44:28,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:44:28,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:44:28,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:44:28,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:44:28,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:44:28,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:44:28,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:44:28,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:44:28,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:44:28,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:44:28,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:44:28,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:44:28,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:44:28,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:44:28,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:44:28,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:44:28,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:44:28,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:44:28,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:44:28,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:44:28,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:44:28,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:44:28,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:44:28,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:44:28,734 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:44:28,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:44:28,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:44:28,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:44:28,736 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:44:28,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:44:28,736 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:44:28,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:44:28,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:44:28,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:44:28,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:44:28,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:44:28,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:44:28,738 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:44:28,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:44:28,738 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:44:28,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:44:28,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:44:28,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:44:28,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:44:28,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:44:28,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:44:28,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:44:28,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:44:28,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:44:28,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:44:28,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:44:28,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:44:28,741 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_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/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 -> ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f [2019-11-15 20:44:28,791 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:44:28,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:44:28,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:44:28,811 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:44:28,811 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:44:28,812 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2019-11-15 20:44:28,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/data/454298cd3/b38db61660ed40cba2f6ac1552188d25/FLAGc8cb05d62 [2019-11-15 20:44:29,247 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:44:29,248 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2019-11-15 20:44:29,254 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/data/454298cd3/b38db61660ed40cba2f6ac1552188d25/FLAGc8cb05d62 [2019-11-15 20:44:29,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/data/454298cd3/b38db61660ed40cba2f6ac1552188d25 [2019-11-15 20:44:29,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:44:29,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:44:29,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:44:29,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:44:29,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:44:29,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:44:29" (1/1) ... [2019-11-15 20:44:29,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5ecfdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29, skipping insertion in model container [2019-11-15 20:44:29,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:44:29" (1/1) ... [2019-11-15 20:44:29,284 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:44:29,300 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:44:29,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:44:29,526 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:44:29,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:44:29,568 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:44:29,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29 WrapperNode [2019-11-15 20:44:29,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:44:29,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:44:29,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:44:29,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:44:29,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29" (1/1) ... [2019-11-15 20:44:29,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29" (1/1) ... [2019-11-15 20:44:29,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:44:29,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:44:29,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:44:29,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:44:29,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29" (1/1) ... [2019-11-15 20:44:29,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29" (1/1) ... [2019-11-15 20:44:29,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29" (1/1) ... [2019-11-15 20:44:29,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29" (1/1) ... [2019-11-15 20:44:29,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29" (1/1) ... [2019-11-15 20:44:29,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29" (1/1) ... [2019-11-15 20:44:29,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29" (1/1) ... [2019-11-15 20:44:29,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:44:29,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:44:29,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:44:29,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:44:29,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/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 20:44:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:44:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 20:44:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:44:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:44:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:44:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:44:30,045 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:44:30,045 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 20:44:30,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:44:30 BoogieIcfgContainer [2019-11-15 20:44:30,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:44:30,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:44:30,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:44:30,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:44:30,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:44:29" (1/3) ... [2019-11-15 20:44:30,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb52c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:44:30, skipping insertion in model container [2019-11-15 20:44:30,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:29" (2/3) ... [2019-11-15 20:44:30,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb52c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:44:30, skipping insertion in model container [2019-11-15 20:44:30,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:44:30" (3/3) ... [2019-11-15 20:44:30,053 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300.c [2019-11-15 20:44:30,062 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:44:30,069 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:44:30,077 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:44:30,098 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:44:30,098 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:44:30,099 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:44:30,099 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:44:30,099 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:44:30,099 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:44:30,099 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:44:30,099 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:44:30,113 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-15 20:44:30,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 20:44:30,119 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:44:30,120 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:44:30,121 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:44:30,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:44:30,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1033094394, now seen corresponding path program 1 times [2019-11-15 20:44:30,134 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:44:30,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744898239] [2019-11-15 20:44:30,135 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:44:30,135 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:44:30,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:44:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:44:30,236 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 20:44:30,236 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744898239] [2019-11-15 20:44:30,237 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:44:30,237 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:44:30,238 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98537813] [2019-11-15 20:44:30,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:44:30,242 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:44:30,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:44:30,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:44:30,256 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-15 20:44:30,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:44:30,272 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2019-11-15 20:44:30,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:44:30,273 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-15 20:44:30,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:44:30,282 INFO L225 Difference]: With dead ends: 38 [2019-11-15 20:44:30,282 INFO L226 Difference]: Without dead ends: 16 [2019-11-15 20:44:30,284 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 20:44:30,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-15 20:44:30,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-15 20:44:30,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-15 20:44:30,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-15 20:44:30,318 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2019-11-15 20:44:30,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:44:30,319 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-15 20:44:30,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:44:30,319 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-15 20:44:30,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 20:44:30,319 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:44:30,320 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:44:30,320 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:44:30,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:44:30,321 INFO L82 PathProgramCache]: Analyzing trace with hash 499625812, now seen corresponding path program 1 times [2019-11-15 20:44:30,321 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:44:30,321 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144145828] [2019-11-15 20:44:30,321 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:44:30,321 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:44:30,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:44:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:44:30,479 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 20:44:30,479 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144145828] [2019-11-15 20:44:30,479 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:44:30,479 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:44:30,480 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056187047] [2019-11-15 20:44:30,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 20:44:30,481 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:44:30,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:44:30,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:44:30,482 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 3 states. [2019-11-15 20:44:30,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:44:30,496 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-11-15 20:44:30,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:44:30,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-15 20:44:30,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:44:30,498 INFO L225 Difference]: With dead ends: 24 [2019-11-15 20:44:30,498 INFO L226 Difference]: Without dead ends: 16 [2019-11-15 20:44:30,498 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 [2019-11-15 20:44:30,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-15 20:44:30,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-15 20:44:30,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-15 20:44:30,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-11-15 20:44:30,501 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2019-11-15 20:44:30,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:44:30,502 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-11-15 20:44:30,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 20:44:30,502 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-11-15 20:44:30,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 20:44:30,502 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:44:30,503 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:44:30,503 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:44:30,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:44:30,504 INFO L82 PathProgramCache]: Analyzing trace with hash 2210040, now seen corresponding path program 1 times [2019-11-15 20:44:30,504 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:44:30,504 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838348328] [2019-11-15 20:44:30,504 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:44:30,505 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:44:30,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:44:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:44:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:44:30,725 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:44:30,729 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:44:30,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:44:30 BoogieIcfgContainer [2019-11-15 20:44:30,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:44:30,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:44:30,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:44:30,770 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:44:30,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:44:30" (3/4) ... [2019-11-15 20:44:30,775 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:44:30,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:44:30,779 INFO L168 Benchmark]: Toolchain (without parser) took 1508.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -147.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:44:30,780 INFO L168 Benchmark]: CDTParser took 1.57 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:44:30,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 946.2 MB in the beginning and 1.2 GB in the end (delta: -213.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:44:30,782 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:44:30,782 INFO L168 Benchmark]: Boogie Preprocessor took 46.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:44:30,783 INFO L168 Benchmark]: RCFGBuilder took 391.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:44:30,792 INFO L168 Benchmark]: TraceAbstraction took 721.80 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-11-15 20:44:30,793 INFO L168 Benchmark]: Witness Printer took 7.10 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. [2019-11-15 20:44:30,798 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.57 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 297.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 946.2 MB in the beginning and 1.2 GB in the end (delta: -213.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 391.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 721.80 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 7.10 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 25, overapproximation of bitwiseAnd at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 58, overapproximation of to_real at line 55. Possible FailurePath: [L50] double x = __VERIFIER_nondet_double(); [L17] __int32_t hx, lx; [L19] ieee_double_shape_type ew_u; [L20] ew_u.value = (x) [L21] EXPR ew_u.parts.msw [L21] (hx) = ew_u.parts.msw [L22] EXPR ew_u.parts.lsw [L22] (lx) = ew_u.parts.lsw [L24] hx &= 0x7fffffff [L25] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L26] hx = 0x7ff00000 - hx [L27] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L53] !isinf_double(x) && !isnan_double(x) [L31] return x != x; [L53] !isinf_double(x) && !isnan_double(x) [L53] COND TRUE !isinf_double(x) && !isnan_double(x) [L34] __int32_t hx; [L36] ieee_double_shape_type gh_u; [L37] gh_u.value = (x) [L38] EXPR gh_u.parts.msw [L38] (hx) = gh_u.parts.msw [L40] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L55] double res = isfinite_double(x); [L58] COND TRUE res == 0.0 [L59] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 0 SDslu, 10 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 303 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 20:44:32,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:44:32,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:44:32,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-15 20:44:32,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:44:32,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:44:32,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:44:32,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:44:32,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:44:32,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:44:32,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:44:32,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:44:32,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:44:32,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:44:32,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:44:32,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:44:32,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-15 20:44:32,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:44:32,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:44:32,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:44:32,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:44:32,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:44:32,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:44:32,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:44:32,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:44:32,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:44:32,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:44:32,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:44:32,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:44:32,894 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:44:32,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:44:32,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:44:32,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:44:32,896 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:44:32,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:44:32,896 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:44:32,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:44:32,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:44:32,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:44:32,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:44:32,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:44:32,898 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:44:32,898 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:44:32,898 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:44:32,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:44:32,898 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:44:32,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:44:32,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:44:32,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:44:32,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:44:32,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:44:32,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:44:32,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:44:32,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:44:32,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:44:32,901 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:44:32,901 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:44:32,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:44:32,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:44:32,901 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_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/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 -> ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f [2019-11-15 20:44:32,931 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:44:32,942 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:44:32,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:44:32,946 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:44:32,946 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:44:32,947 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2019-11-15 20:44:32,996 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/data/65366485d/f3e19301e49f493f941b227d59e2ed42/FLAGbf984e762 [2019-11-15 20:44:33,423 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:44:33,424 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2019-11-15 20:44:33,430 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/data/65366485d/f3e19301e49f493f941b227d59e2ed42/FLAGbf984e762 [2019-11-15 20:44:33,442 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/bin/uautomizer/data/65366485d/f3e19301e49f493f941b227d59e2ed42 [2019-11-15 20:44:33,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:44:33,446 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:44:33,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:44:33,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:44:33,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:44:33,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:44:33" (1/1) ... [2019-11-15 20:44:33,454 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 08:44:33, skipping insertion in model container [2019-11-15 20:44:33,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:44:33" (1/1) ... [2019-11-15 20:44:33,461 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:44:33,477 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:44:33,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:44:33,634 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:44:33,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:44:33,755 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:44:33,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33 WrapperNode [2019-11-15 20:44:33,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:44:33,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:44:33,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:44:33,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:44:33,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33" (1/1) ... [2019-11-15 20:44:33,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33" (1/1) ... [2019-11-15 20:44:33,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:44:33,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:44:33,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:44:33,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:44:33,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33" (1/1) ... [2019-11-15 20:44:33,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33" (1/1) ... [2019-11-15 20:44:33,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33" (1/1) ... [2019-11-15 20:44:33,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33" (1/1) ... [2019-11-15 20:44:33,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33" (1/1) ... [2019-11-15 20:44:33,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33" (1/1) ... [2019-11-15 20:44:33,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33" (1/1) ... [2019-11-15 20:44:33,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:44:33,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:44:33,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:44:33,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:44:33,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/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 20:44:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 20:44:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:44:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:44:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:44:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:44:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:44:34,311 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:44:34,312 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 20:44:34,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:44:34 BoogieIcfgContainer [2019-11-15 20:44:34,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:44:34,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:44:34,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:44:34,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:44:34,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:44:33" (1/3) ... [2019-11-15 20:44:34,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179ecfe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:44:34, skipping insertion in model container [2019-11-15 20:44:34,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:44:33" (2/3) ... [2019-11-15 20:44:34,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179ecfe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:44:34, skipping insertion in model container [2019-11-15 20:44:34,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:44:34" (3/3) ... [2019-11-15 20:44:34,321 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300.c [2019-11-15 20:44:34,331 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:44:34,351 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:44:34,362 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:44:34,390 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:44:34,391 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:44:34,391 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:44:34,391 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:44:34,391 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:44:34,391 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:44:34,392 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:44:34,392 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:44:34,409 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-15 20:44:34,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 20:44:34,418 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:44:34,419 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:44:34,420 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:44:34,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:44:34,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1033094394, now seen corresponding path program 1 times [2019-11-15 20:44:34,436 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:44:34,438 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435777756] [2019-11-15 20:44:34,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/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 20:44:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:44:34,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 20:44:34,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:44:34,583 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 20:44:34,583 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:44:34,590 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 20:44:34,592 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435777756] [2019-11-15 20:44:34,592 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:44:34,593 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 20:44:34,593 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251942772] [2019-11-15 20:44:34,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:44:34,598 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:44:34,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:44:34,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:44:34,614 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-15 20:44:34,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:44:34,633 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2019-11-15 20:44:34,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:44:34,635 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-15 20:44:34,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:44:34,646 INFO L225 Difference]: With dead ends: 38 [2019-11-15 20:44:34,646 INFO L226 Difference]: Without dead ends: 16 [2019-11-15 20:44:34,654 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 20:44:34,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-15 20:44:34,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-15 20:44:34,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-15 20:44:34,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-15 20:44:34,692 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2019-11-15 20:44:34,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:44:34,693 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-15 20:44:34,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:44:34,694 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-15 20:44:34,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 20:44:34,695 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:44:34,695 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:44:34,907 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:44:34,907 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:44:34,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:44:34,908 INFO L82 PathProgramCache]: Analyzing trace with hash 499625812, now seen corresponding path program 1 times [2019-11-15 20:44:34,908 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:44:34,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808506536] [2019-11-15 20:44:34,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/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 20:44:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:44:35,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 20:44:35,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:44:35,035 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 20:44:35,036 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:44:35,038 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 20:44:35,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808506536] [2019-11-15 20:44:35,039 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:44:35,039 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-15 20:44:35,040 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130304747] [2019-11-15 20:44:35,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 20:44:35,041 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:44:35,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:44:35,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:44:35,042 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 3 states. [2019-11-15 20:44:35,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:44:35,067 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-11-15 20:44:35,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:44:35,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-15 20:44:35,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:44:35,069 INFO L225 Difference]: With dead ends: 24 [2019-11-15 20:44:35,069 INFO L226 Difference]: Without dead ends: 16 [2019-11-15 20:44:35,070 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:44:35,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-15 20:44:35,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-15 20:44:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-15 20:44:35,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-11-15 20:44:35,073 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2019-11-15 20:44:35,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:44:35,073 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-11-15 20:44:35,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 20:44:35,074 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-11-15 20:44:35,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 20:44:35,074 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:44:35,074 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:44:35,284 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 20:44:35,286 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:44:35,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:44:35,287 INFO L82 PathProgramCache]: Analyzing trace with hash 2210040, now seen corresponding path program 1 times [2019-11-15 20:44:35,288 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:44:35,288 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233505679] [2019-11-15 20:44:35,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a44b4a1-17d5-4df6-aa89-5d3c2ace2145/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 20:44:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:44:35,419 WARN L254 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-15 20:44:35,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:44:35,684 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 20:44:35,685 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 20:44:35,691 INFO L168 Benchmark]: Toolchain (without parser) took 2243.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -109.5 MB). Peak memory consumption was 48.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:44:35,691 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-15 20:44:35,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 952.3 MB in the beginning and 1.2 GB in the end (delta: -201.0 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:44:35,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:44:35,693 INFO L168 Benchmark]: Boogie Preprocessor took 31.67 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. [2019-11-15 20:44:35,694 INFO L168 Benchmark]: RCFGBuilder took 472.88 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: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:44:35,694 INFO L168 Benchmark]: TraceAbstraction took 1374.13 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: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:44:35,698 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 309.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 952.3 MB in the beginning and 1.2 GB in the end (delta: -201.0 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.67 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 472.88 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: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1374.13 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: 58.8 MB). Peak memory consumption was 58.8 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...