./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 202bc01bb48234a1d40d76b97c20197b03b7a3c3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 18:34:36,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:34:36,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:34:36,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:34:36,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:34:36,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:34:36,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:34:36,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:34:36,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:34:36,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:34:36,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:34:36,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:34:36,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:34:36,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:34:36,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:34:36,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:34:36,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:34:36,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:34:36,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:34:36,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:34:36,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:34:36,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:34:36,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:34:36,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:34:36,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:34:36,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:34:36,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:34:36,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:34:36,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:34:36,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:34:36,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:34:36,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:34:36,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:34:36,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:34:36,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:34:36,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:34:36,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:34:36,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:34:36,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:34:36,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:34:36,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:34:36,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:34:36,952 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:34:36,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:34:36,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:34:36,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:34:36,954 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:34:36,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:34:36,955 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:34:36,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:34:36,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:34:36,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:34:36,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:34:36,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:34:36,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:34:36,957 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:34:36,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:34:36,957 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:34:36,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:34:36,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:34:36,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:34:36,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:34:36,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:34:36,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:34:36,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:34:36,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:34:36,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:34:36,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:34:36,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:34:36,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:34:36,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:34:36,962 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 202bc01bb48234a1d40d76b97c20197b03b7a3c3 [2019-11-28 18:34:37,296 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:34:37,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:34:37,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:34:37,317 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:34:37,318 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:34:37,318 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i [2019-11-28 18:34:37,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a36a303a4/7e5d0d5609d444d6940630239395b158/FLAGeedccdb75 [2019-11-28 18:34:37,948 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:34:37,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i [2019-11-28 18:34:37,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a36a303a4/7e5d0d5609d444d6940630239395b158/FLAGeedccdb75 [2019-11-28 18:34:38,252 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a36a303a4/7e5d0d5609d444d6940630239395b158 [2019-11-28 18:34:38,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:34:38,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:34:38,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:34:38,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:34:38,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:34:38,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:34:38" (1/1) ... [2019-11-28 18:34:38,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54986a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38, skipping insertion in model container [2019-11-28 18:34:38,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:34:38" (1/1) ... [2019-11-28 18:34:38,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:34:38,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:34:38,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:34:38,782 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:34:38,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:34:38,923 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:34:38,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38 WrapperNode [2019-11-28 18:34:38,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:34:38,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:34:38,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:34:38,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:34:38,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38" (1/1) ... [2019-11-28 18:34:38,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38" (1/1) ... [2019-11-28 18:34:39,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:34:39,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:34:39,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:34:39,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:34:39,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38" (1/1) ... [2019-11-28 18:34:39,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38" (1/1) ... [2019-11-28 18:34:39,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38" (1/1) ... [2019-11-28 18:34:39,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38" (1/1) ... [2019-11-28 18:34:39,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38" (1/1) ... [2019-11-28 18:34:39,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38" (1/1) ... [2019-11-28 18:34:39,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38" (1/1) ... [2019-11-28 18:34:39,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:34:39,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:34:39,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:34:39,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:34:39,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:34:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:34:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:34:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:34:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:34:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:34:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:34:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:34:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:34:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:34:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:34:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-28 18:34:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-28 18:34:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:34:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:34:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:34:39,127 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 18:34:39,516 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:34:39,517 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:34:39,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:39 BoogieIcfgContainer [2019-11-28 18:34:39,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:34:39,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:34:39,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:34:39,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:34:39,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:34:38" (1/3) ... [2019-11-28 18:34:39,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba4a0e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:34:39, skipping insertion in model container [2019-11-28 18:34:39,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:38" (2/3) ... [2019-11-28 18:34:39,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba4a0e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:34:39, skipping insertion in model container [2019-11-28 18:34:39,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:39" (3/3) ... [2019-11-28 18:34:39,530 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2019-11-28 18:34:39,538 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:34:39,538 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:34:39,546 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:34:39,547 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:34:39,578 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,578 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,579 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,579 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,580 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,580 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,581 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,581 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,581 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,581 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,582 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,582 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,582 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,583 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,583 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,583 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,584 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,584 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,585 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,585 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,585 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,585 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,586 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,586 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:39,622 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-28 18:34:39,641 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:34:39,641 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:34:39,641 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:34:39,642 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:34:39,642 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:34:39,642 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:34:39,642 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:34:39,642 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:34:39,657 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 67 transitions [2019-11-28 18:34:39,660 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions [2019-11-28 18:34:39,726 INFO L134 PetriNetUnfolder]: 1/63 cut-off events. [2019-11-28 18:34:39,727 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:34:39,735 INFO L76 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs. 12/73 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-11-28 18:34:39,738 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions [2019-11-28 18:34:39,763 INFO L134 PetriNetUnfolder]: 1/63 cut-off events. [2019-11-28 18:34:39,763 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:34:39,765 INFO L76 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs. 12/73 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-11-28 18:34:39,767 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 732 [2019-11-28 18:34:39,769 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:34:41,297 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-11-28 18:34:41,419 INFO L206 etLargeBlockEncoding]: Checked pairs total: 723 [2019-11-28 18:34:41,419 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2019-11-28 18:34:41,423 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 21 transitions [2019-11-28 18:34:41,445 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 110 states. [2019-11-28 18:34:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2019-11-28 18:34:41,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:34:41,463 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:41,466 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:41,466 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:41,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:41,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1014881653, now seen corresponding path program 1 times [2019-11-28 18:34:41,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:41,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281690420] [2019-11-28 18:34:41,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:34:41,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281690420] [2019-11-28 18:34:41,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:41,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:34:41,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634114290] [2019-11-28 18:34:41,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:34:41,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:41,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:34:41,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:34:41,927 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 3 states. [2019-11-28 18:34:41,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:41,970 INFO L93 Difference]: Finished difference Result 139 states and 354 transitions. [2019-11-28 18:34:41,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:34:41,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 18:34:41,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:41,986 INFO L225 Difference]: With dead ends: 139 [2019-11-28 18:34:41,987 INFO L226 Difference]: Without dead ends: 77 [2019-11-28 18:34:41,988 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 [2019-11-28 18:34:42,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-28 18:34:42,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-11-28 18:34:42,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-28 18:34:42,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 187 transitions. [2019-11-28 18:34:42,039 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 187 transitions. Word has length 10 [2019-11-28 18:34:42,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:42,041 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 187 transitions. [2019-11-28 18:34:42,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:34:42,041 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 187 transitions. [2019-11-28 18:34:42,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:34:42,043 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:42,043 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:42,043 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:42,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:42,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1386680118, now seen corresponding path program 1 times [2019-11-28 18:34:42,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:42,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925666602] [2019-11-28 18:34:42,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:42,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:34:42,111 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925666602] [2019-11-28 18:34:42,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:42,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:34:42,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861135676] [2019-11-28 18:34:42,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:34:42,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:42,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:34:42,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:34:42,116 INFO L87 Difference]: Start difference. First operand 77 states and 187 transitions. Second operand 3 states. [2019-11-28 18:34:42,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:42,125 INFO L93 Difference]: Finished difference Result 70 states and 164 transitions. [2019-11-28 18:34:42,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:34:42,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-28 18:34:42,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:42,127 INFO L225 Difference]: With dead ends: 70 [2019-11-28 18:34:42,127 INFO L226 Difference]: Without dead ends: 70 [2019-11-28 18:34:42,129 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 [2019-11-28 18:34:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-11-28 18:34:42,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-11-28 18:34:42,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-28 18:34:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 164 transitions. [2019-11-28 18:34:42,140 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 164 transitions. Word has length 11 [2019-11-28 18:34:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:42,140 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 164 transitions. [2019-11-28 18:34:42,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:34:42,141 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 164 transitions. [2019-11-28 18:34:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:34:42,142 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:42,142 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:42,143 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:42,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1396559942, now seen corresponding path program 1 times [2019-11-28 18:34:42,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:42,144 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857772048] [2019-11-28 18:34:42,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:42,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:34:42,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857772048] [2019-11-28 18:34:42,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:42,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:34:42,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439331736] [2019-11-28 18:34:42,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:34:42,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:42,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:34:42,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:34:42,241 INFO L87 Difference]: Start difference. First operand 70 states and 164 transitions. Second operand 4 states. [2019-11-28 18:34:42,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:42,262 INFO L93 Difference]: Finished difference Result 66 states and 152 transitions. [2019-11-28 18:34:42,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:34:42,263 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:34:42,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:42,264 INFO L225 Difference]: With dead ends: 66 [2019-11-28 18:34:42,264 INFO L226 Difference]: Without dead ends: 66 [2019-11-28 18:34:42,265 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:34:42,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-28 18:34:42,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-11-28 18:34:42,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-28 18:34:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 152 transitions. [2019-11-28 18:34:42,274 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 152 transitions. Word has length 11 [2019-11-28 18:34:42,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:42,275 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 152 transitions. [2019-11-28 18:34:42,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:34:42,275 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 152 transitions. [2019-11-28 18:34:42,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 18:34:42,277 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:42,277 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:42,277 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:42,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:42,278 INFO L82 PathProgramCache]: Analyzing trace with hash 343681169, now seen corresponding path program 1 times [2019-11-28 18:34:42,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:42,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065691887] [2019-11-28 18:34:42,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:42,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:34:42,365 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065691887] [2019-11-28 18:34:42,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:42,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:42,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743697419] [2019-11-28 18:34:42,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:34:42,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:42,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:34:42,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:34:42,368 INFO L87 Difference]: Start difference. First operand 66 states and 152 transitions. Second operand 5 states. [2019-11-28 18:34:42,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:42,405 INFO L93 Difference]: Finished difference Result 72 states and 159 transitions. [2019-11-28 18:34:42,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:42,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-28 18:34:42,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:42,409 INFO L225 Difference]: With dead ends: 72 [2019-11-28 18:34:42,409 INFO L226 Difference]: Without dead ends: 56 [2019-11-28 18:34:42,410 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:34:42,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-28 18:34:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-11-28 18:34:42,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-28 18:34:42,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 119 transitions. [2019-11-28 18:34:42,425 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 119 transitions. Word has length 12 [2019-11-28 18:34:42,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:42,425 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 119 transitions. [2019-11-28 18:34:42,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:34:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 119 transitions. [2019-11-28 18:34:42,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 18:34:42,427 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:42,427 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:42,428 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:42,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:42,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1159720466, now seen corresponding path program 1 times [2019-11-28 18:34:42,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:42,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252457631] [2019-11-28 18:34:42,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:34:42,529 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252457631] [2019-11-28 18:34:42,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:42,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:34:42,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108952821] [2019-11-28 18:34:42,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:34:42,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:42,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:34:42,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:34:42,531 INFO L87 Difference]: Start difference. First operand 56 states and 119 transitions. Second operand 4 states. [2019-11-28 18:34:42,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:42,579 INFO L93 Difference]: Finished difference Result 55 states and 117 transitions. [2019-11-28 18:34:42,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:34:42,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-28 18:34:42,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:42,583 INFO L225 Difference]: With dead ends: 55 [2019-11-28 18:34:42,583 INFO L226 Difference]: Without dead ends: 55 [2019-11-28 18:34:42,584 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:34:42,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-28 18:34:42,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-11-28 18:34:42,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-28 18:34:42,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 117 transitions. [2019-11-28 18:34:42,597 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 117 transitions. Word has length 13 [2019-11-28 18:34:42,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:42,597 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 117 transitions. [2019-11-28 18:34:42,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:34:42,600 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 117 transitions. [2019-11-28 18:34:42,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 18:34:42,601 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:42,601 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:42,601 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:42,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:42,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1591594888, now seen corresponding path program 1 times [2019-11-28 18:34:42,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:42,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971268270] [2019-11-28 18:34:42,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:42,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:34:42,697 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971268270] [2019-11-28 18:34:42,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:42,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:42,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101277140] [2019-11-28 18:34:42,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:34:42,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:42,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:34:42,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:34:42,699 INFO L87 Difference]: Start difference. First operand 55 states and 117 transitions. Second operand 5 states. [2019-11-28 18:34:42,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:42,725 INFO L93 Difference]: Finished difference Result 67 states and 135 transitions. [2019-11-28 18:34:42,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:42,725 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-28 18:34:42,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:42,726 INFO L225 Difference]: With dead ends: 67 [2019-11-28 18:34:42,726 INFO L226 Difference]: Without dead ends: 43 [2019-11-28 18:34:42,727 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:34:42,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-28 18:34:42,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-11-28 18:34:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-28 18:34:42,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 79 transitions. [2019-11-28 18:34:42,731 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 79 transitions. Word has length 14 [2019-11-28 18:34:42,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:42,732 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 79 transitions. [2019-11-28 18:34:42,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:34:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 79 transitions. [2019-11-28 18:34:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 18:34:42,733 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:42,733 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:42,733 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:42,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:42,734 INFO L82 PathProgramCache]: Analyzing trace with hash -432128726, now seen corresponding path program 2 times [2019-11-28 18:34:42,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:42,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627141786] [2019-11-28 18:34:42,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:34:42,815 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627141786] [2019-11-28 18:34:42,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:42,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:42,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020719391] [2019-11-28 18:34:42,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:34:42,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:42,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:34:42,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:34:42,817 INFO L87 Difference]: Start difference. First operand 43 states and 79 transitions. Second operand 5 states. [2019-11-28 18:34:42,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:42,836 INFO L93 Difference]: Finished difference Result 45 states and 80 transitions. [2019-11-28 18:34:42,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:42,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-28 18:34:42,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:42,837 INFO L225 Difference]: With dead ends: 45 [2019-11-28 18:34:42,837 INFO L226 Difference]: Without dead ends: 25 [2019-11-28 18:34:42,837 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:34:42,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-28 18:34:42,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-28 18:34:42,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 18:34:42,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-11-28 18:34:42,840 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 14 [2019-11-28 18:34:42,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:42,840 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-11-28 18:34:42,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:34:42,841 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-11-28 18:34:42,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 18:34:42,841 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:42,841 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:42,842 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:42,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:42,842 INFO L82 PathProgramCache]: Analyzing trace with hash -431612576, now seen corresponding path program 3 times [2019-11-28 18:34:42,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:42,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682814008] [2019-11-28 18:34:42,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:42,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:34:42,906 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682814008] [2019-11-28 18:34:42,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:42,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:42,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184679468] [2019-11-28 18:34:42,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:34:42,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:42,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:34:42,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:34:42,908 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 5 states. [2019-11-28 18:34:42,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:42,923 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2019-11-28 18:34:42,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:42,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-28 18:34:42,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:42,924 INFO L225 Difference]: With dead ends: 24 [2019-11-28 18:34:42,924 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:34:42,924 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:34:42,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:34:42,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:34:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:34:42,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:34:42,925 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-28 18:34:42,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:42,925 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:34:42,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:34:42,925 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:34:42,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:34:42,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:34:42 BasicIcfg [2019-11-28 18:34:42,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:34:42,931 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:34:42,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:34:42,932 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:34:42,932 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:39" (3/4) ... [2019-11-28 18:34:42,936 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:34:42,944 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:34:42,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:34:42,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:34:42,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-28 18:34:42,954 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-28 18:34:42,955 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:34:42,955 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:34:43,003 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:34:43,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:34:43,005 INFO L168 Benchmark]: Toolchain (without parser) took 4748.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:43,006 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:34:43,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -126.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:43,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:34:43,008 INFO L168 Benchmark]: Boogie Preprocessor took 54.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:34:43,008 INFO L168 Benchmark]: RCFGBuilder took 452.35 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:43,009 INFO L168 Benchmark]: TraceAbstraction took 3411.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -85.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:34:43,010 INFO L168 Benchmark]: Witness Printer took 72.15 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: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:43,013 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 666.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -126.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.58 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 54.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 452.35 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3411.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -85.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 72.15 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: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 79 ProgramPointsBefore, 28 ProgramPointsAfterwards, 67 TransitionsBefore, 21 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 358 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 723 CheckedPairsTotal, 56 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 5 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 3.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 108 SDtfs, 95 SDslu, 69 SDs, 0 SdLazy, 49 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 5301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...