./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/sync01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/sync01.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 07a2cff325945f1e2c5f5bc34031b7ae099cedf8 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:44:01,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:44:01,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:44:01,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:44:01,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:44:01,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:44:01,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:44:01,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:44:01,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:44:01,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:44:01,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:44:01,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:44:01,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:44:01,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:44:01,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:44:01,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:44:01,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:44:01,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:44:01,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:44:01,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:44:01,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:44:01,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:44:01,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:44:01,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:44:01,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:44:01,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:44:01,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:44:01,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:44:01,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:44:01,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:44:01,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:44:01,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:44:01,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:44:01,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:44:01,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:44:01,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:44:01,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:44:01,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:44:01,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:44:01,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:44:01,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:44:01,096 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:44:01,121 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:44:01,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:44:01,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:44:01,122 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:44:01,122 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:44:01,122 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:44:01,122 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:44:01,122 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:44:01,123 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:44:01,123 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:44:01,123 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:44:01,123 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:44:01,123 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:44:01,124 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:44:01,124 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:44:01,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:44:01,124 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:44:01,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:44:01,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:44:01,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:44:01,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:44:01,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:44:01,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:44:01,126 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:44:01,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:44:01,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:44:01,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:44:01,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:44:01,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:44:01,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:44:01,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:44:01,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:44:01,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:44:01,128 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:44:01,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:44:01,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:44:01,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:44:01,128 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan 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 -> Taipan 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 -> 07a2cff325945f1e2c5f5bc34031b7ae099cedf8 [2019-11-26 02:44:01,290 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:44:01,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:44:01,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:44:01,305 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:44:01,305 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:44:01,306 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/../../sv-benchmarks/c/pthread/sync01.i [2019-11-26 02:44:01,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/data/d788b6b03/0e71c9bd96754d01ba0e9a64fea5a0ed/FLAGd2498a845 [2019-11-26 02:44:01,799 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:44:01,800 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/sv-benchmarks/c/pthread/sync01.i [2019-11-26 02:44:01,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/data/d788b6b03/0e71c9bd96754d01ba0e9a64fea5a0ed/FLAGd2498a845 [2019-11-26 02:44:02,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/data/d788b6b03/0e71c9bd96754d01ba0e9a64fea5a0ed [2019-11-26 02:44:02,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:44:02,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:44:02,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:44:02,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:44:02,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:44:02,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:44:02" (1/1) ... [2019-11-26 02:44:02,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eb41eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:02, skipping insertion in model container [2019-11-26 02:44:02,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:44:02" (1/1) ... [2019-11-26 02:44:02,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:44:02,167 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:44:02,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:44:02,803 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:44:02,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:44:03,026 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:44:03,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03 WrapperNode [2019-11-26 02:44:03,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:44:03,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:44:03,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:44:03,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:44:03,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03" (1/1) ... [2019-11-26 02:44:03,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03" (1/1) ... [2019-11-26 02:44:03,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:44:03,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:44:03,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:44:03,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:44:03,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03" (1/1) ... [2019-11-26 02:44:03,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03" (1/1) ... [2019-11-26 02:44:03,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03" (1/1) ... [2019-11-26 02:44:03,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03" (1/1) ... [2019-11-26 02:44:03,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03" (1/1) ... [2019-11-26 02:44:03,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03" (1/1) ... [2019-11-26 02:44:03,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03" (1/1) ... [2019-11-26 02:44:03,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:44:03,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:44:03,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:44:03,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:44:03,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/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 [2019-11-26 02:44:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:44:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:44:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:44:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-11-26 02:44:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-11-26 02:44:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2019-11-26 02:44:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2019-11-26 02:44:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:44:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-26 02:44:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:44:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:44:03,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:44:03,227 WARN L202 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:44:03,683 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:44:03,683 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:44:03,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:03 BoogieIcfgContainer [2019-11-26 02:44:03,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:44:03,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:44:03,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:44:03,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:44:03,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:44:02" (1/3) ... [2019-11-26 02:44:03,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556bd6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:44:03, skipping insertion in model container [2019-11-26 02:44:03,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:03" (2/3) ... [2019-11-26 02:44:03,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556bd6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:44:03, skipping insertion in model container [2019-11-26 02:44:03,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:03" (3/3) ... [2019-11-26 02:44:03,691 INFO L109 eAbstractionObserver]: Analyzing ICFG sync01.i [2019-11-26 02:44:03,741 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,741 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,741 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,742 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,742 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,742 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,742 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,743 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,743 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,743 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,743 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,743 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,743 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,744 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,744 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,744 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,744 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,744 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,745 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,745 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,745 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,745 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,746 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,746 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,746 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,746 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,746 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,747 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,747 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,747 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,747 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,747 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,748 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,748 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,748 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,748 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,748 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,749 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,749 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,749 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,750 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,750 WARN L315 ript$VariableManager]: TermVariabe thread2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,750 WARN L315 ript$VariableManager]: TermVariabe thread2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,750 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,750 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,750 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,751 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,751 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,751 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,751 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,752 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,752 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,752 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,752 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,752 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,753 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,753 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,753 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,753 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,753 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,754 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,754 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,754 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,754 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,754 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,755 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,755 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,755 WARN L315 ript$VariableManager]: TermVariabe thread2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,755 WARN L315 ript$VariableManager]: TermVariabe thread2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,755 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,756 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,756 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,756 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,756 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,757 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,757 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,757 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,757 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:03,817 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:44:03,817 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:44:03,825 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:44:03,838 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:44:03,864 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:44:03,864 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:44:03,864 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:44:03,865 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:44:03,865 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:44:03,865 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:44:03,865 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:44:03,866 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:44:03,889 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 153 places, 161 transitions [2019-11-26 02:44:03,973 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 762 states. [2019-11-26 02:44:03,976 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states. [2019-11-26 02:44:04,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-26 02:44:04,005 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:04,006 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:04,007 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:04,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:04,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1078972382, now seen corresponding path program 1 times [2019-11-26 02:44:04,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:04,022 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519563033] [2019-11-26 02:44:04,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:04,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:04,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519563033] [2019-11-26 02:44:04,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:04,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:44:04,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66334098] [2019-11-26 02:44:04,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:44:04,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:04,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:44:04,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:44:04,282 INFO L87 Difference]: Start difference. First operand 762 states. Second operand 2 states. [2019-11-26 02:44:04,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:04,317 INFO L93 Difference]: Finished difference Result 762 states and 1869 transitions. [2019-11-26 02:44:04,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:44:04,319 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 68 [2019-11-26 02:44:04,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:04,350 INFO L225 Difference]: With dead ends: 762 [2019-11-26 02:44:04,350 INFO L226 Difference]: Without dead ends: 754 [2019-11-26 02:44:04,352 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:44:04,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2019-11-26 02:44:04,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2019-11-26 02:44:04,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2019-11-26 02:44:04,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1861 transitions. [2019-11-26 02:44:04,465 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1861 transitions. Word has length 68 [2019-11-26 02:44:04,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:04,467 INFO L462 AbstractCegarLoop]: Abstraction has 754 states and 1861 transitions. [2019-11-26 02:44:04,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:44:04,467 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1861 transitions. [2019-11-26 02:44:04,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-26 02:44:04,473 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:04,474 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:04,474 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:04,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:04,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1675686210, now seen corresponding path program 1 times [2019-11-26 02:44:04,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:04,475 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769389568] [2019-11-26 02:44:04,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:04,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:04,639 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769389568] [2019-11-26 02:44:04,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:04,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:44:04,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814882575] [2019-11-26 02:44:04,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:44:04,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:04,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:44:04,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:44:04,643 INFO L87 Difference]: Start difference. First operand 754 states and 1861 transitions. Second operand 3 states. [2019-11-26 02:44:04,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:04,750 INFO L93 Difference]: Finished difference Result 454 states and 1048 transitions. [2019-11-26 02:44:04,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:44:04,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-11-26 02:44:04,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:04,755 INFO L225 Difference]: With dead ends: 454 [2019-11-26 02:44:04,755 INFO L226 Difference]: Without dead ends: 454 [2019-11-26 02:44:04,756 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:44:04,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-11-26 02:44:04,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2019-11-26 02:44:04,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-11-26 02:44:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 1048 transitions. [2019-11-26 02:44:04,798 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 1048 transitions. Word has length 68 [2019-11-26 02:44:04,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:04,799 INFO L462 AbstractCegarLoop]: Abstraction has 454 states and 1048 transitions. [2019-11-26 02:44:04,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:44:04,799 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 1048 transitions. [2019-11-26 02:44:04,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-26 02:44:04,801 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:04,801 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:04,801 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:04,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:04,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1524398348, now seen corresponding path program 2 times [2019-11-26 02:44:04,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:04,802 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182985630] [2019-11-26 02:44:04,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:04,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:04,957 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182985630] [2019-11-26 02:44:04,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:04,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:44:04,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997456866] [2019-11-26 02:44:04,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:44:04,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:04,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:44:04,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:44:04,959 INFO L87 Difference]: Start difference. First operand 454 states and 1048 transitions. Second operand 5 states. [2019-11-26 02:44:05,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:05,084 INFO L93 Difference]: Finished difference Result 334 states and 684 transitions. [2019-11-26 02:44:05,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:44:05,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-11-26 02:44:05,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:05,087 INFO L225 Difference]: With dead ends: 334 [2019-11-26 02:44:05,087 INFO L226 Difference]: Without dead ends: 334 [2019-11-26 02:44:05,088 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:44:05,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-11-26 02:44:05,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2019-11-26 02:44:05,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2019-11-26 02:44:05,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 684 transitions. [2019-11-26 02:44:05,103 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 684 transitions. Word has length 68 [2019-11-26 02:44:05,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:05,103 INFO L462 AbstractCegarLoop]: Abstraction has 334 states and 684 transitions. [2019-11-26 02:44:05,103 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:44:05,104 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 684 transitions. [2019-11-26 02:44:05,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-26 02:44:05,105 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:05,105 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:05,106 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:05,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:05,106 INFO L82 PathProgramCache]: Analyzing trace with hash 2042843494, now seen corresponding path program 3 times [2019-11-26 02:44:05,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:05,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403978304] [2019-11-26 02:44:05,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:05,239 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403978304] [2019-11-26 02:44:05,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:05,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:44:05,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686661903] [2019-11-26 02:44:05,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:44:05,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:05,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:44:05,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:44:05,241 INFO L87 Difference]: Start difference. First operand 334 states and 684 transitions. Second operand 7 states. [2019-11-26 02:44:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:05,427 INFO L93 Difference]: Finished difference Result 334 states and 683 transitions. [2019-11-26 02:44:05,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:44:05,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-11-26 02:44:05,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:05,430 INFO L225 Difference]: With dead ends: 334 [2019-11-26 02:44:05,431 INFO L226 Difference]: Without dead ends: 292 [2019-11-26 02:44:05,431 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:44:05,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2019-11-26 02:44:05,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2019-11-26 02:44:05,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2019-11-26 02:44:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 599 transitions. [2019-11-26 02:44:05,442 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 599 transitions. Word has length 68 [2019-11-26 02:44:05,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:05,443 INFO L462 AbstractCegarLoop]: Abstraction has 292 states and 599 transitions. [2019-11-26 02:44:05,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:44:05,443 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 599 transitions. [2019-11-26 02:44:05,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-26 02:44:05,444 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:05,445 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:05,445 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:05,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:05,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1874067976, now seen corresponding path program 1 times [2019-11-26 02:44:05,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:05,446 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129271551] [2019-11-26 02:44:05,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:05,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:05,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129271551] [2019-11-26 02:44:05,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:05,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:44:05,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325781076] [2019-11-26 02:44:05,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:44:05,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:05,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:44:05,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:44:05,648 INFO L87 Difference]: Start difference. First operand 292 states and 599 transitions. Second operand 7 states. [2019-11-26 02:44:05,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:05,736 INFO L93 Difference]: Finished difference Result 281 states and 567 transitions. [2019-11-26 02:44:05,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:44:05,737 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-11-26 02:44:05,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:05,738 INFO L225 Difference]: With dead ends: 281 [2019-11-26 02:44:05,738 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:44:05,738 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:44:05,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:44:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:44:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:44:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:44:05,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2019-11-26 02:44:05,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:05,739 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:44:05,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:44:05,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:44:05,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:44:05,743 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:44:05,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:44:05 BasicIcfg [2019-11-26 02:44:05,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:44:05,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:44:05,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:44:05,747 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:44:05,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:03" (3/4) ... [2019-11-26 02:44:05,766 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:44:05,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2019-11-26 02:44:05,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2019-11-26 02:44:05,783 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-26 02:44:05,785 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:44:05,786 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:44:05,841 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cba5e49b-8778-4d04-a371-e3af95f6d6cb/bin/utaipan/witness.graphml [2019-11-26 02:44:05,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:44:05,847 INFO L168 Benchmark]: Toolchain (without parser) took 3742.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.8 MB in the beginning and 833.6 MB in the end (delta: 111.2 MB). Peak memory consumption was 238.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:05,848 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:44:05,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 922.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -122.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:05,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.19 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:05,849 INFO L168 Benchmark]: Boogie Preprocessor took 50.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:44:05,849 INFO L168 Benchmark]: RCFGBuilder took 532.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:05,850 INFO L168 Benchmark]: TraceAbstraction took 2061.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 840.4 MB in the end (delta: 191.2 MB). Peak memory consumption was 191.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:05,850 INFO L168 Benchmark]: Witness Printer took 94.36 ms. Allocated memory is still 1.2 GB. Free memory was 840.4 MB in the beginning and 833.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:05,852 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 922.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -122.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.19 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 532.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2061.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 840.4 MB in the end (delta: 191.2 MB). Peak memory consumption was 191.2 MB. Max. memory is 11.5 GB. * Witness Printer took 94.36 ms. Allocated memory is still 1.2 GB. Free memory was 840.4 MB in the beginning and 833.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 947]: 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 9 procedures, 169 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 406 SDtfs, 265 SDslu, 650 SDs, 0 SdLazy, 185 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=762occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 335 ConstructedInterpolants, 0 QuantifiedInterpolants, 44689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...