./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.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/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/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 df684da5e5a56662a7be6091ec5bb0a21e1453c5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:59,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:59,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:59,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:59,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:59,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:59,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:59,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:59,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:59,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:59,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:59,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:59,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:59,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:59,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:59,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:59,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:59,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:59,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:59,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:59,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:59,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:59,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:59,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:59,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:59,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:59,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:59,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:59,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:59,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:59,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:59,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:59,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:59,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:59,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:59,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:59,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:59,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:59,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:59,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:59,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:59,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:02:59,859 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:59,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:59,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:59,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:59,860 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:59,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:59,860 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:59,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:59,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:59,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:59,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:59,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:59,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:59,862 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:59,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:59,862 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:59,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:59,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:59,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:59,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:59,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:59,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:59,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:59,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:59,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:59,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:59,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:59,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:59,864 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/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/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 -> df684da5e5a56662a7be6091ec5bb0a21e1453c5 [2019-10-22 09:02:59,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:59,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:59,912 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:59,913 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:59,913 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:59,914 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/bin/uautomizer/../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c [2019-10-22 09:02:59,958 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/bin/uautomizer/data/4105247e8/bd02a5efc2ec41198147aac2e1c6447f/FLAG2497d3e98 [2019-10-22 09:03:00,351 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:03:00,352 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c [2019-10-22 09:03:00,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/bin/uautomizer/data/4105247e8/bd02a5efc2ec41198147aac2e1c6447f/FLAG2497d3e98 [2019-10-22 09:03:00,751 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/bin/uautomizer/data/4105247e8/bd02a5efc2ec41198147aac2e1c6447f [2019-10-22 09:03:00,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:03:00,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:03:00,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:00,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:03:00,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:03:00,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:00" (1/1) ... [2019-10-22 09:03:00,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61525037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:00, skipping insertion in model container [2019-10-22 09:03:00,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:00" (1/1) ... [2019-10-22 09:03:00,769 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:03:00,798 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:03:01,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:01,077 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:03:01,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:01,134 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:03:01,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01 WrapperNode [2019-10-22 09:03:01,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:01,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:03:01,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:03:01,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:03:01,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:03:01,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:03:01,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:03:01,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:03:01,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:03:01,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:03:01,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:03:01,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:03:01,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/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 [2019-10-22 09:03:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:03:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:03:01,684 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:03:01,684 INFO L284 CfgBuilder]: Removed 60 assume(true) statements. [2019-10-22 09:03:01,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:01 BoogieIcfgContainer [2019-10-22 09:03:01,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:03:01,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:03:01,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:03:01,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:03:01,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:03:00" (1/3) ... [2019-10-22 09:03:01,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20185e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:03:01, skipping insertion in model container [2019-10-22 09:03:01,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (2/3) ... [2019-10-22 09:03:01,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20185e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:03:01, skipping insertion in model container [2019-10-22 09:03:01,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:01" (3/3) ... [2019-10-22 09:03:01,692 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-2.c [2019-10-22 09:03:01,701 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:03:01,710 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 09:03:01,717 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 09:03:01,737 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:03:01,737 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:03:01,737 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:03:01,737 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:03:01,737 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:03:01,738 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:03:01,738 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:03:01,738 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:03:01,752 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2019-10-22 09:03:01,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 09:03:01,758 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:01,758 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:01,760 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:03:01,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:01,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1129554405, now seen corresponding path program 1 times [2019-10-22 09:03:01,770 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:01,770 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817426790] [2019-10-22 09:03:01,771 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:01,771 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:01,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:01,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:01,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817426790] [2019-10-22 09:03:01,910 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:01,913 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:03:01,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6978394] [2019-10-22 09:03:01,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:03:01,919 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:01,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:03:01,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:03:01,940 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2019-10-22 09:03:02,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:02,049 INFO L93 Difference]: Finished difference Result 272 states and 425 transitions. [2019-10-22 09:03:02,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:03:02,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-10-22 09:03:02,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:02,063 INFO L225 Difference]: With dead ends: 272 [2019-10-22 09:03:02,063 INFO L226 Difference]: Without dead ends: 178 [2019-10-22 09:03:02,066 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:03:02,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-10-22 09:03:02,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 172. [2019-10-22 09:03:02,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-22 09:03:02,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 252 transitions. [2019-10-22 09:03:02,118 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 252 transitions. Word has length 33 [2019-10-22 09:03:02,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:02,118 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 252 transitions. [2019-10-22 09:03:02,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:03:02,119 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 252 transitions. [2019-10-22 09:03:02,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 09:03:02,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:02,120 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:02,120 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:03:02,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:02,121 INFO L82 PathProgramCache]: Analyzing trace with hash 875581448, now seen corresponding path program 1 times [2019-10-22 09:03:02,121 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:02,121 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409190567] [2019-10-22 09:03:02,122 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,122 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:02,214 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409190567] [2019-10-22 09:03:02,214 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:02,214 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:03:02,214 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922666054] [2019-10-22 09:03:02,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:03:02,216 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:02,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:03:02,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:03:02,217 INFO L87 Difference]: Start difference. First operand 172 states and 252 transitions. Second operand 3 states. [2019-10-22 09:03:02,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:02,326 INFO L93 Difference]: Finished difference Result 495 states and 723 transitions. [2019-10-22 09:03:02,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:03:02,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-10-22 09:03:02,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:02,329 INFO L225 Difference]: With dead ends: 495 [2019-10-22 09:03:02,329 INFO L226 Difference]: Without dead ends: 339 [2019-10-22 09:03:02,331 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:03:02,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2019-10-22 09:03:02,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 333. [2019-10-22 09:03:02,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2019-10-22 09:03:02,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 482 transitions. [2019-10-22 09:03:02,372 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 482 transitions. Word has length 33 [2019-10-22 09:03:02,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:02,372 INFO L462 AbstractCegarLoop]: Abstraction has 333 states and 482 transitions. [2019-10-22 09:03:02,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:03:02,373 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 482 transitions. [2019-10-22 09:03:02,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 09:03:02,374 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:02,374 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:02,375 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:03:02,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:02,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1133746886, now seen corresponding path program 1 times [2019-10-22 09:03:02,375 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:02,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9823877] [2019-10-22 09:03:02,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:02,457 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9823877] [2019-10-22 09:03:02,457 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:02,457 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:03:02,457 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865514873] [2019-10-22 09:03:02,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:03:02,458 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:02,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:03:02,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:03:02,458 INFO L87 Difference]: Start difference. First operand 333 states and 482 transitions. Second operand 5 states. [2019-10-22 09:03:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:02,564 INFO L93 Difference]: Finished difference Result 1067 states and 1549 transitions. [2019-10-22 09:03:02,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:03:02,565 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-22 09:03:02,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:02,568 INFO L225 Difference]: With dead ends: 1067 [2019-10-22 09:03:02,568 INFO L226 Difference]: Without dead ends: 789 [2019-10-22 09:03:02,570 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:03:02,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2019-10-22 09:03:02,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 345. [2019-10-22 09:03:02,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-10-22 09:03:02,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 490 transitions. [2019-10-22 09:03:02,603 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 490 transitions. Word has length 33 [2019-10-22 09:03:02,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:02,603 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 490 transitions. [2019-10-22 09:03:02,603 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:03:02,604 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 490 transitions. [2019-10-22 09:03:02,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 09:03:02,605 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:02,605 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:02,605 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:03:02,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:02,606 INFO L82 PathProgramCache]: Analyzing trace with hash 316098436, now seen corresponding path program 1 times [2019-10-22 09:03:02,606 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:02,606 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376137145] [2019-10-22 09:03:02,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:02,664 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:02,668 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:03:02,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:03:02 BoogieIcfgContainer [2019-10-22 09:03:02,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:03:02,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:03:02,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:03:02,746 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:03:02,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:01" (3/4) ... [2019-10-22 09:03:02,749 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:03:02,840 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8828f60f-5062-4ca3-8192-2e8840b3b25e/bin/uautomizer/witness.graphml [2019-10-22 09:03:02,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:03:02,846 INFO L168 Benchmark]: Toolchain (without parser) took 2091.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 949.9 MB in the beginning and 957.1 MB in the end (delta: -7.2 MB). Peak memory consumption was 94.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:02,846 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:02,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -142.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:02,847 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.54 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. [2019-10-22 09:03:02,847 INFO L168 Benchmark]: Boogie Preprocessor took 33.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:02,847 INFO L168 Benchmark]: RCFGBuilder took 471.70 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:02,848 INFO L168 Benchmark]: TraceAbstraction took 1058.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 964.1 MB in the end (delta: 83.3 MB). Peak memory consumption was 83.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:02,848 INFO L168 Benchmark]: Witness Printer took 95.79 ms. Allocated memory is still 1.1 GB. Free memory was 964.1 MB in the beginning and 957.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:02,851 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 379.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -142.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.54 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 33.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 471.70 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1058.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 964.1 MB in the end (delta: 83.3 MB). Peak memory consumption was 83.3 MB. Max. memory is 11.5 GB. * Witness Printer took 95.79 ms. Allocated memory is still 1.1 GB. Free memory was 964.1 MB in the beginning and 957.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int q_buf_0 ; [L16] int q_free ; [L17] int q_read_ev ; [L18] int q_write_ev ; [L19] int q_req_up ; [L20] int q_ev ; [L41] int p_num_write ; [L42] int p_last_write ; [L43] int p_dw_st ; [L44] int p_dw_pc ; [L45] int p_dw_i ; [L46] int c_num_read ; [L47] int c_last_read ; [L48] int c_dr_st ; [L49] int c_dr_pc ; [L50] int c_dr_i ; [L154] static int a_t ; VAL [a_t=0, c_dr_i=0, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=0, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=0, q_read_ev=0, q_req_up=0, q_write_ev=0] [L456] int __retres1 ; [L442] q_free = 1 [L443] q_write_ev = 2 [L444] q_read_ev = q_write_ev [L445] p_num_write = 0 [L446] p_dw_pc = 0 [L447] p_dw_i = 1 [L448] c_num_read = 0 [L449] c_dr_pc = 0 [L450] c_dr_i = 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L396] int kernel_st ; [L397] int tmp ; [L401] kernel_st = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L212] COND FALSE !((int )q_req_up == 1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L227] COND TRUE (int )p_dw_i == 1 [L228] p_dw_st = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L232] COND TRUE (int )c_dr_i == 1 [L233] c_dr_st = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L265] COND FALSE !((int )q_read_ev == 0) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L270] COND FALSE !((int )q_write_ev == 0) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L298] int tmp ; [L299] int tmp___0 ; [L52] int __retres1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L55] COND FALSE !((int )p_dw_pc == 1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L65] __retres1 = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L67] return (__retres1); VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L303] tmp = is_do_write_p_triggered() [L305] COND FALSE !(\read(tmp)) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L71] int __retres1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L74] COND FALSE !((int )c_dr_pc == 1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L84] __retres1 = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L86] return (__retres1); VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L311] tmp___0 = is_do_read_c_triggered() [L313] COND FALSE !(\read(tmp___0)) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L283] COND FALSE !((int )q_read_ev == 1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L288] COND FALSE !((int )q_write_ev == 1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L409] COND TRUE 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L412] kernel_st = 1 [L323] int tmp ; [L324] int tmp___0 ; [L325] int tmp___1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L329] COND TRUE 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L242] int __retres1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L245] COND TRUE (int )p_dw_st == 0 [L246] __retres1 = 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L258] return (__retres1); VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L332] tmp___1 = exists_runnable_thread() [L334] COND TRUE \read(tmp___1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L339] COND TRUE (int )p_dw_st == 0 [L341] tmp = __VERIFIER_nondet_int() [L343] COND FALSE !(\read(tmp)) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L10] __VERIFIER_error() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 414 SDtfs, 625 SDslu, 807 SDs, 0 SdLazy, 64 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 456 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 5248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 proved your program to be incorrect! Received shutdown request...