./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe006_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe006_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/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 89a1b3d9e93a325029db6a3cc0b6d77d3b9c0d9b ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:46:30,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:46:30,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:46:30,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:46:30,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:46:30,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:46:30,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:46:30,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:46:30,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:46:30,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:46:30,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:46:30,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:46:30,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:46:30,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:46:30,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:46:30,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:46:30,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:46:30,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:46:30,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:46:30,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:46:30,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:46:30,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:46:30,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:46:30,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:46:30,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:46:30,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:46:30,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:46:30,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:46:30,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:46:30,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:46:30,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:46:30,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:46:30,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:46:30,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:46:30,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:46:30,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:46:30,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:46:30,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:46:30,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:46:30,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:46:30,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:46:30,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 16:46:30,728 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:46:30,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:46:30,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:46:30,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:46:30,730 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:46:30,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:46:30,730 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:46:30,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:46:30,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:46:30,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:46:30,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:46:30,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:46:30,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:46:30,731 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:46:30,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:46:30,731 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:46:30,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:46:30,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:46:30,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:46:30,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:46:30,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:46:30,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:46:30,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:46:30,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:46:30,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:46:30,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:46:30,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:46:30,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:46:30,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:46:30,733 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_2338f021-27e1-4dd1-87ee-038afed1e6de/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 -> 89a1b3d9e93a325029db6a3cc0b6d77d3b9c0d9b [2019-12-07 16:46:30,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:46:30,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:46:30,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:46:30,845 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:46:30,845 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:46:30,846 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe006_pso.oepc.i [2019-12-07 16:46:30,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/bin/uautomizer/data/21b5f85be/2ed00793eb5444269e94c5cf84ad8455/FLAGfb8644753 [2019-12-07 16:46:31,359 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:46:31,359 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/sv-benchmarks/c/pthread-wmm/safe006_pso.oepc.i [2019-12-07 16:46:31,371 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/bin/uautomizer/data/21b5f85be/2ed00793eb5444269e94c5cf84ad8455/FLAGfb8644753 [2019-12-07 16:46:31,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/bin/uautomizer/data/21b5f85be/2ed00793eb5444269e94c5cf84ad8455 [2019-12-07 16:46:31,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:46:31,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:46:31,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:46:31,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:46:31,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:46:31,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:46:31" (1/1) ... [2019-12-07 16:46:31,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d44ebb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31, skipping insertion in model container [2019-12-07 16:46:31,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:46:31" (1/1) ... [2019-12-07 16:46:31,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:46:31,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:46:31,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:46:31,670 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:46:31,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:46:31,745 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:46:31,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31 WrapperNode [2019-12-07 16:46:31,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:46:31,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:46:31,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:46:31,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:46:31,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31" (1/1) ... [2019-12-07 16:46:31,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31" (1/1) ... [2019-12-07 16:46:31,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:46:31,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:46:31,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:46:31,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:46:31,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31" (1/1) ... [2019-12-07 16:46:31,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31" (1/1) ... [2019-12-07 16:46:31,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31" (1/1) ... [2019-12-07 16:46:31,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31" (1/1) ... [2019-12-07 16:46:31,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31" (1/1) ... [2019-12-07 16:46:31,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31" (1/1) ... [2019-12-07 16:46:31,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31" (1/1) ... [2019-12-07 16:46:31,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:46:31,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:46:31,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:46:31,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:46:31,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/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 [2019-12-07 16:46:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 16:46:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-07 16:46:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:46:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:46:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-07 16:46:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-07 16:46:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-07 16:46:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-07 16:46:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-07 16:46:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:46:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:46:31,837 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 16:46:31,989 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:46:31,989 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 16:46:31,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:46:31 BoogieIcfgContainer [2019-12-07 16:46:31,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:46:31,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:46:31,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:46:31,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:46:31,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:46:31" (1/3) ... [2019-12-07 16:46:31,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e21fa6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:46:31, skipping insertion in model container [2019-12-07 16:46:31,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:46:31" (2/3) ... [2019-12-07 16:46:31,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e21fa6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:46:31, skipping insertion in model container [2019-12-07 16:46:31,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:46:31" (3/3) ... [2019-12-07 16:46:31,995 INFO L109 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc.i [2019-12-07 16:46:32,001 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 16:46:32,002 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:46:32,006 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:46:32,006 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 16:46:32,021 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,022 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,022 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,022 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,022 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,022 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,023 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,023 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,023 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,023 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,023 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,023 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 16:46:32,035 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 16:46:32,047 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:46:32,047 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:46:32,047 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:46:32,047 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:46:32,047 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:46:32,047 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:46:32,048 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:46:32,048 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:46:32,055 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 43 transitions [2019-12-07 16:46:32,056 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 43 transitions [2019-12-07 16:46:32,078 INFO L134 PetriNetUnfolder]: 1/41 cut-off events. [2019-12-07 16:46:32,078 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 16:46:32,082 INFO L76 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs. 6/45 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2019-12-07 16:46:32,083 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 43 transitions [2019-12-07 16:46:32,091 INFO L134 PetriNetUnfolder]: 1/41 cut-off events. [2019-12-07 16:46:32,091 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 16:46:32,092 INFO L76 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs. 6/45 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2019-12-07 16:46:32,093 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 234 [2019-12-07 16:46:32,094 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 16:46:32,736 INFO L206 etLargeBlockEncoding]: Checked pairs total: 271 [2019-12-07 16:46:32,737 INFO L214 etLargeBlockEncoding]: Total number of compositions: 38 [2019-12-07 16:46:32,739 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15 places, 11 transitions [2019-12-07 16:46:32,744 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 22 states. [2019-12-07 16:46:32,746 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-12-07 16:46:32,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 16:46:32,750 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:46:32,750 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:46:32,750 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:46:32,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:46:32,754 INFO L82 PathProgramCache]: Analyzing trace with hash 608072787, now seen corresponding path program 1 times [2019-12-07 16:46:32,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:46:32,760 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632442806] [2019-12-07 16:46:32,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:46:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:46:32,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:46:32,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632442806] [2019-12-07 16:46:32,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:46:32,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 16:46:32,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351109748] [2019-12-07 16:46:32,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:46:32,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:46:32,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:46:32,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:46:32,917 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2019-12-07 16:46:32,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:46:32,936 INFO L93 Difference]: Finished difference Result 20 states and 31 transitions. [2019-12-07 16:46:32,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:46:32,938 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 16:46:32,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:46:32,946 INFO L225 Difference]: With dead ends: 20 [2019-12-07 16:46:32,946 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 16:46:32,947 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:46:32,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 16:46:32,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 16:46:32,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 16:46:32,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2019-12-07 16:46:32,975 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 23 transitions. Word has length 6 [2019-12-07 16:46:32,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:46:32,975 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 23 transitions. [2019-12-07 16:46:32,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:46:32,975 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2019-12-07 16:46:32,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 16:46:32,976 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:46:32,976 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:46:32,976 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:46:32,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:46:32,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1668374393, now seen corresponding path program 1 times [2019-12-07 16:46:32,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:46:32,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110891920] [2019-12-07 16:46:32,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:46:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:46:33,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:46:33,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110891920] [2019-12-07 16:46:33,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:46:33,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:46:33,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035112018] [2019-12-07 16:46:33,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:46:33,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:46:33,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:46:33,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:46:33,047 INFO L87 Difference]: Start difference. First operand 16 states and 23 transitions. Second operand 5 states. [2019-12-07 16:46:33,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:46:33,083 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2019-12-07 16:46:33,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:46:33,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-12-07 16:46:33,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:46:33,084 INFO L225 Difference]: With dead ends: 16 [2019-12-07 16:46:33,084 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 16:46:33,085 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:46:33,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 16:46:33,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 16:46:33,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 16:46:33,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-12-07 16:46:33,087 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 7 [2019-12-07 16:46:33,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:46:33,087 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-07 16:46:33,087 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:46:33,087 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-07 16:46:33,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 16:46:33,088 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:46:33,088 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:46:33,088 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:46:33,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:46:33,088 INFO L82 PathProgramCache]: Analyzing trace with hash 180062532, now seen corresponding path program 1 times [2019-12-07 16:46:33,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:46:33,088 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766294314] [2019-12-07 16:46:33,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:46:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:46:33,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:46:33,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766294314] [2019-12-07 16:46:33,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:46:33,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:46:33,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210085753] [2019-12-07 16:46:33,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:46:33,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:46:33,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:46:33,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:46:33,137 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2019-12-07 16:46:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:46:33,152 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-12-07 16:46:33,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:46:33,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 16:46:33,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:46:33,153 INFO L225 Difference]: With dead ends: 14 [2019-12-07 16:46:33,153 INFO L226 Difference]: Without dead ends: 9 [2019-12-07 16:46:33,154 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:46:33,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-07 16:46:33,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-07 16:46:33,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 16:46:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2019-12-07 16:46:33,155 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2019-12-07 16:46:33,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:46:33,156 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2019-12-07 16:46:33,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:46:33,156 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2019-12-07 16:46:33,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 16:46:33,156 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:46:33,156 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:46:33,156 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:46:33,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:46:33,157 INFO L82 PathProgramCache]: Analyzing trace with hash 244439922, now seen corresponding path program 2 times [2019-12-07 16:46:33,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:46:33,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342135372] [2019-12-07 16:46:33,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:46:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:46:33,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:46:33,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342135372] [2019-12-07 16:46:33,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:46:33,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:46:33,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332167333] [2019-12-07 16:46:33,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:46:33,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:46:33,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:46:33,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:46:33,195 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 4 states. [2019-12-07 16:46:33,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:46:33,204 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-12-07 16:46:33,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:46:33,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 16:46:33,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:46:33,205 INFO L225 Difference]: With dead ends: 8 [2019-12-07 16:46:33,205 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:46:33,205 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:46:33,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:46:33,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:46:33,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:46:33,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:46:33,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-12-07 16:46:33,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:46:33,214 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:46:33,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:46:33,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:46:33,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:46:33,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:46:33 BasicIcfg [2019-12-07 16:46:33,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:46:33,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:46:33,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:46:33,217 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:46:33,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:46:31" (3/4) ... [2019-12-07 16:46:33,220 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:46:33,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-12-07 16:46:33,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-12-07 16:46:33,228 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-12-07 16:46:33,228 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 16:46:33,228 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 16:46:33,254 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2338f021-27e1-4dd1-87ee-038afed1e6de/bin/uautomizer/witness.graphml [2019-12-07 16:46:33,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:46:33,256 INFO L168 Benchmark]: Toolchain (without parser) took 1872.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -193.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:46:33,256 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 954.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:46:33,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.82 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 979.1 MB in the end (delta: -43.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:46:33,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.70 ms. Allocated memory is still 1.0 GB. Free memory was 979.1 MB in the beginning and 977.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:46:33,257 INFO L168 Benchmark]: Boogie Preprocessor took 16.49 ms. Allocated memory is still 1.0 GB. Free memory was 977.7 MB in the beginning and 976.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:46:33,257 INFO L168 Benchmark]: RCFGBuilder took 197.09 ms. Allocated memory is still 1.0 GB. Free memory was 976.4 MB in the beginning and 950.6 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:46:33,258 INFO L168 Benchmark]: TraceAbstraction took 1226.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 216.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:46:33,258 INFO L168 Benchmark]: Witness Printer took 37.12 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: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:46:33,260 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 954.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 361.82 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 979.1 MB in the end (delta: -43.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.70 ms. Allocated memory is still 1.0 GB. Free memory was 979.1 MB in the beginning and 977.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.49 ms. Allocated memory is still 1.0 GB. Free memory was 977.7 MB in the beginning and 976.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.09 ms. Allocated memory is still 1.0 GB. Free memory was 976.4 MB in the beginning and 950.6 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1226.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 216.6 MB. Max. memory is 11.5 GB. * Witness Printer took 37.12 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: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 49 ProgramPointsBefore, 15 ProgramPointsAfterwards, 43 TransitionsBefore, 11 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 118 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 271 CheckedPairsTotal, 38 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 43 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 16 SDslu, 12 SDs, 0 SdLazy, 22 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 525 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 correct! Received shutdown request...