./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.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_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 713cebf5ac496914464c3b07e269efb1002ec95d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:53:13,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:13,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:13,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:13,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:13,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:13,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:13,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:13,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:13,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:13,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:13,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:13,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:13,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:13,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:13,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:13,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:13,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:13,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:13,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:13,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:13,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:13,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:13,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:13,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:13,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:13,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:13,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:13,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:13,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:13,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:13,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:13,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:13,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:13,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:13,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:13,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:13,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:13,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:13,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:13,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:13,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:53:13,391 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:13,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:13,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:13,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:13,393 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:13,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:13,397 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:13,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:53:13,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:13,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:13,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:53:13,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:53:13,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:53:13,398 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:13,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:13,398 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:13,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:53:13,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:13,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:13,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:53:13,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:53:13,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:13,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:13,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:53:13,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:53:13,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:53:13,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:53:13,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:53:13,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 713cebf5ac496914464c3b07e269efb1002ec95d [2019-11-25 08:53:13,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:13,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:13,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:13,583 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:13,583 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:13,584 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2019-11-25 08:53:13,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/data/a78e71ab0/ecd0bab5a57d4637876176e10c8e66e7/FLAGa5d5dc25a [2019-11-25 08:53:14,118 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:14,119 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2019-11-25 08:53:14,132 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/data/a78e71ab0/ecd0bab5a57d4637876176e10c8e66e7/FLAGa5d5dc25a [2019-11-25 08:53:14,460 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/data/a78e71ab0/ecd0bab5a57d4637876176e10c8e66e7 [2019-11-25 08:53:14,462 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:14,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:14,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:14,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:14,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:14,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:14" (1/1) ... [2019-11-25 08:53:14,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463e9843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:14, skipping insertion in model container [2019-11-25 08:53:14,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:14" (1/1) ... [2019-11-25 08:53:14,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:14,534 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:14,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:15,003 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:15,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:15,136 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:15,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15 WrapperNode [2019-11-25 08:53:15,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:15,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:15,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:15,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:15,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15" (1/1) ... [2019-11-25 08:53:15,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15" (1/1) ... [2019-11-25 08:53:15,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:15,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:15,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:15,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:15,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15" (1/1) ... [2019-11-25 08:53:15,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15" (1/1) ... [2019-11-25 08:53:15,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15" (1/1) ... [2019-11-25 08:53:15,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15" (1/1) ... [2019-11-25 08:53:15,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15" (1/1) ... [2019-11-25 08:53:15,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15" (1/1) ... [2019-11-25 08:53:15,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15" (1/1) ... [2019-11-25 08:53:15,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:15,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:15,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:15,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:15,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:15,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:53:15,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:53:15,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:53:15,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:53:15,273 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:53:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:53:15,274 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:53:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:53:15,274 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:53:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:53:15,275 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-25 08:53:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-25 08:53:15,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:53:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:15,277 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:53:15,693 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:15,693 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:53:15,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:15 BoogieIcfgContainer [2019-11-25 08:53:15,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:15,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:53:15,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:53:15,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:53:15,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:53:14" (1/3) ... [2019-11-25 08:53:15,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2403d983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:15, skipping insertion in model container [2019-11-25 08:53:15,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:15" (2/3) ... [2019-11-25 08:53:15,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2403d983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:15, skipping insertion in model container [2019-11-25 08:53:15,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:15" (3/3) ... [2019-11-25 08:53:15,700 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2019-11-25 08:53:15,757 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,757 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,758 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,758 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,758 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,758 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,759 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,759 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,759 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,759 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,760 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,760 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,763 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,763 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,763 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,764 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,764 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,764 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,765 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,765 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,765 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,765 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,766 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,766 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,767 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,767 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,768 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,768 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,768 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,769 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,769 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,769 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,770 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,770 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,770 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,770 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,771 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,771 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,772 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,772 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,772 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,772 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,773 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,773 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,773 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,774 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,774 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,774 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,775 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,775 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,775 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,775 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,776 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,776 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,776 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,776 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,777 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,777 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,777 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,777 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,777 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,778 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,778 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,778 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,778 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,778 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,779 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,779 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,779 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,780 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,780 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,780 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:15,802 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:53:15,802 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:53:15,808 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:53:15,818 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:53:15,833 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:53:15,834 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:53:15,834 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:53:15,834 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:15,834 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:15,834 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:53:15,834 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:15,834 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:53:15,844 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 123 places, 95 transitions [2019-11-25 08:53:16,408 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5475 states. [2019-11-25 08:53:16,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states. [2019-11-25 08:53:16,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:53:16,437 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:16,437 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] [2019-11-25 08:53:16,438 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:16,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:16,443 INFO L82 PathProgramCache]: Analyzing trace with hash 531103723, now seen corresponding path program 1 times [2019-11-25 08:53:16,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:16,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071662487] [2019-11-25 08:53:16,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:16,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071662487] [2019-11-25 08:53:16,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:16,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:53:16,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954517876] [2019-11-25 08:53:16,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:53:16,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:16,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:16,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:16,817 INFO L87 Difference]: Start difference. First operand 5475 states. Second operand 4 states. [2019-11-25 08:53:16,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:16,964 INFO L93 Difference]: Finished difference Result 5712 states and 21937 transitions. [2019-11-25 08:53:16,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:53:16,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-11-25 08:53:16,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:17,026 INFO L225 Difference]: With dead ends: 5712 [2019-11-25 08:53:17,026 INFO L226 Difference]: Without dead ends: 2396 [2019-11-25 08:53:17,028 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:17,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2019-11-25 08:53:17,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2396. [2019-11-25 08:53:17,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2396 states. [2019-11-25 08:53:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 8940 transitions. [2019-11-25 08:53:17,229 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 8940 transitions. Word has length 38 [2019-11-25 08:53:17,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:17,230 INFO L462 AbstractCegarLoop]: Abstraction has 2396 states and 8940 transitions. [2019-11-25 08:53:17,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:53:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 8940 transitions. [2019-11-25 08:53:17,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-25 08:53:17,235 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:17,236 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] [2019-11-25 08:53:17,236 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:17,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:17,236 INFO L82 PathProgramCache]: Analyzing trace with hash 246307377, now seen corresponding path program 1 times [2019-11-25 08:53:17,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:17,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686555834] [2019-11-25 08:53:17,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:17,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:17,392 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686555834] [2019-11-25 08:53:17,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:17,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:53:17,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687281998] [2019-11-25 08:53:17,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:53:17,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:17,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:53:17,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:17,395 INFO L87 Difference]: Start difference. First operand 2396 states and 8940 transitions. Second operand 5 states. [2019-11-25 08:53:17,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:17,543 INFO L93 Difference]: Finished difference Result 2567 states and 9324 transitions. [2019-11-25 08:53:17,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:53:17,544 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2019-11-25 08:53:17,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:17,565 INFO L225 Difference]: With dead ends: 2567 [2019-11-25 08:53:17,565 INFO L226 Difference]: Without dead ends: 2312 [2019-11-25 08:53:17,566 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:53:17,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2019-11-25 08:53:17,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2312. [2019-11-25 08:53:17,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2019-11-25 08:53:17,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 8548 transitions. [2019-11-25 08:53:17,658 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 8548 transitions. Word has length 39 [2019-11-25 08:53:17,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:17,659 INFO L462 AbstractCegarLoop]: Abstraction has 2312 states and 8548 transitions. [2019-11-25 08:53:17,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:53:17,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 8548 transitions. [2019-11-25 08:53:17,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-25 08:53:17,665 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:17,665 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] [2019-11-25 08:53:17,665 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:17,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:17,666 INFO L82 PathProgramCache]: Analyzing trace with hash 2135304403, now seen corresponding path program 1 times [2019-11-25 08:53:17,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:17,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694544423] [2019-11-25 08:53:17,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:17,792 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694544423] [2019-11-25 08:53:17,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:17,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:53:17,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977418970] [2019-11-25 08:53:17,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:53:17,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:17,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:53:17,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:53:17,794 INFO L87 Difference]: Start difference. First operand 2312 states and 8548 transitions. Second operand 6 states. [2019-11-25 08:53:17,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:17,902 INFO L93 Difference]: Finished difference Result 2177 states and 7684 transitions. [2019-11-25 08:53:17,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:53:17,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-11-25 08:53:17,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:17,919 INFO L225 Difference]: With dead ends: 2177 [2019-11-25 08:53:17,919 INFO L226 Difference]: Without dead ends: 1934 [2019-11-25 08:53:17,919 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:53:17,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2019-11-25 08:53:17,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1934. [2019-11-25 08:53:17,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2019-11-25 08:53:17,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 6910 transitions. [2019-11-25 08:53:17,980 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 6910 transitions. Word has length 40 [2019-11-25 08:53:17,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:17,980 INFO L462 AbstractCegarLoop]: Abstraction has 1934 states and 6910 transitions. [2019-11-25 08:53:17,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:53:17,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 6910 transitions. [2019-11-25 08:53:17,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-25 08:53:17,988 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:17,989 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] [2019-11-25 08:53:17,989 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:17,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:17,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1682641852, now seen corresponding path program 1 times [2019-11-25 08:53:17,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:17,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137676712] [2019-11-25 08:53:17,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:18,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:18,119 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137676712] [2019-11-25 08:53:18,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:18,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:53:18,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805720208] [2019-11-25 08:53:18,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:53:18,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:18,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:53:18,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:53:18,120 INFO L87 Difference]: Start difference. First operand 1934 states and 6910 transitions. Second operand 7 states. [2019-11-25 08:53:18,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:18,242 INFO L93 Difference]: Finished difference Result 1367 states and 4534 transitions. [2019-11-25 08:53:18,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:53:18,243 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2019-11-25 08:53:18,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:18,253 INFO L225 Difference]: With dead ends: 1367 [2019-11-25 08:53:18,253 INFO L226 Difference]: Without dead ends: 1178 [2019-11-25 08:53:18,253 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:53:18,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2019-11-25 08:53:18,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1178. [2019-11-25 08:53:18,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2019-11-25 08:53:18,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 3886 transitions. [2019-11-25 08:53:18,289 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 3886 transitions. Word has length 41 [2019-11-25 08:53:18,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:18,290 INFO L462 AbstractCegarLoop]: Abstraction has 1178 states and 3886 transitions. [2019-11-25 08:53:18,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:53:18,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 3886 transitions. [2019-11-25 08:53:18,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-25 08:53:18,293 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:18,293 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] [2019-11-25 08:53:18,294 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:18,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:18,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1085706427, now seen corresponding path program 1 times [2019-11-25 08:53:18,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:18,295 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032583555] [2019-11-25 08:53:18,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:18,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:18,431 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032583555] [2019-11-25 08:53:18,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:18,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:53:18,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088364423] [2019-11-25 08:53:18,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:53:18,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:18,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:53:18,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:53:18,433 INFO L87 Difference]: Start difference. First operand 1178 states and 3886 transitions. Second operand 8 states. [2019-11-25 08:53:18,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:18,571 INFO L93 Difference]: Finished difference Result 1871 states and 6223 transitions. [2019-11-25 08:53:18,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:53:18,572 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-11-25 08:53:18,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:18,580 INFO L225 Difference]: With dead ends: 1871 [2019-11-25 08:53:18,581 INFO L226 Difference]: Without dead ends: 1082 [2019-11-25 08:53:18,581 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:53:18,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2019-11-25 08:53:18,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1082. [2019-11-25 08:53:18,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2019-11-25 08:53:18,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 3538 transitions. [2019-11-25 08:53:18,618 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 3538 transitions. Word has length 42 [2019-11-25 08:53:18,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:18,619 INFO L462 AbstractCegarLoop]: Abstraction has 1082 states and 3538 transitions. [2019-11-25 08:53:18,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:53:18,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 3538 transitions. [2019-11-25 08:53:18,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-25 08:53:18,621 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:18,622 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] [2019-11-25 08:53:18,622 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:18,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:18,622 INFO L82 PathProgramCache]: Analyzing trace with hash 590924317, now seen corresponding path program 2 times [2019-11-25 08:53:18,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:18,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520981089] [2019-11-25 08:53:18,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:18,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:18,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520981089] [2019-11-25 08:53:18,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:18,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:53:18,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200658512] [2019-11-25 08:53:18,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:53:18,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:18,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:53:18,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:53:18,799 INFO L87 Difference]: Start difference. First operand 1082 states and 3538 transitions. Second operand 8 states. [2019-11-25 08:53:18,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:18,921 INFO L93 Difference]: Finished difference Result 1604 states and 5341 transitions. [2019-11-25 08:53:18,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:53:18,921 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-11-25 08:53:18,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:18,928 INFO L225 Difference]: With dead ends: 1604 [2019-11-25 08:53:18,928 INFO L226 Difference]: Without dead ends: 827 [2019-11-25 08:53:18,928 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:53:18,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2019-11-25 08:53:18,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 827. [2019-11-25 08:53:18,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-11-25 08:53:18,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 2722 transitions. [2019-11-25 08:53:18,952 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 2722 transitions. Word has length 42 [2019-11-25 08:53:18,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:18,952 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 2722 transitions. [2019-11-25 08:53:18,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:53:18,953 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 2722 transitions. [2019-11-25 08:53:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-25 08:53:18,955 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:18,955 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] [2019-11-25 08:53:18,955 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:18,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:18,956 INFO L82 PathProgramCache]: Analyzing trace with hash 235616253, now seen corresponding path program 3 times [2019-11-25 08:53:18,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:18,956 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512399491] [2019-11-25 08:53:18,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:19,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:19,097 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512399491] [2019-11-25 08:53:19,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:19,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:53:19,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023116053] [2019-11-25 08:53:19,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:53:19,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:19,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:53:19,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:53:19,099 INFO L87 Difference]: Start difference. First operand 827 states and 2722 transitions. Second operand 7 states. [2019-11-25 08:53:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:19,222 INFO L93 Difference]: Finished difference Result 1340 states and 4504 transitions. [2019-11-25 08:53:19,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:53:19,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-11-25 08:53:19,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:19,229 INFO L225 Difference]: With dead ends: 1340 [2019-11-25 08:53:19,229 INFO L226 Difference]: Without dead ends: 779 [2019-11-25 08:53:19,230 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:53:19,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2019-11-25 08:53:19,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 779. [2019-11-25 08:53:19,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2019-11-25 08:53:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 2578 transitions. [2019-11-25 08:53:19,253 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 2578 transitions. Word has length 42 [2019-11-25 08:53:19,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:19,253 INFO L462 AbstractCegarLoop]: Abstraction has 779 states and 2578 transitions. [2019-11-25 08:53:19,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:53:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 2578 transitions. [2019-11-25 08:53:19,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-25 08:53:19,255 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:19,255 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] [2019-11-25 08:53:19,256 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:19,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:19,256 INFO L82 PathProgramCache]: Analyzing trace with hash -501530371, now seen corresponding path program 4 times [2019-11-25 08:53:19,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:19,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655815714] [2019-11-25 08:53:19,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:19,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:19,367 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655815714] [2019-11-25 08:53:19,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:19,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:53:19,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425539162] [2019-11-25 08:53:19,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:53:19,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:19,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:53:19,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:53:19,369 INFO L87 Difference]: Start difference. First operand 779 states and 2578 transitions. Second operand 7 states. [2019-11-25 08:53:19,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:19,460 INFO L93 Difference]: Finished difference Result 617 states and 1984 transitions. [2019-11-25 08:53:19,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:53:19,460 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-11-25 08:53:19,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:19,461 INFO L225 Difference]: With dead ends: 617 [2019-11-25 08:53:19,461 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:53:19,461 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:53:19,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:53:19,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:53:19,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:53:19,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:53:19,462 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2019-11-25 08:53:19,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:19,462 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:53:19,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:53:19,462 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:53:19,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:53:19,465 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:53:19,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:53:19 BasicIcfg [2019-11-25 08:53:19,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:53:19,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:53:19,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:53:19,469 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:53:19,469 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:15" (3/4) ... [2019-11-25 08:53:19,473 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:53:19,493 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:53:19,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:53:19,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:53:19,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-25 08:53:19,505 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-25 08:53:19,507 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:53:19,507 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:53:19,557 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7bf5b931-cbea-49e3-a86f-11f89c6bc382/bin/uautomizer/witness.graphml [2019-11-25 08:53:19,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:53:19,564 INFO L168 Benchmark]: Toolchain (without parser) took 5096.31 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 273.2 MB). Free memory was 946.1 MB in the beginning and 888.6 MB in the end (delta: 57.5 MB). Peak memory consumption was 330.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:19,564 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. [2019-11-25 08:53:19,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:19,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.88 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. [2019-11-25 08:53:19,565 INFO L168 Benchmark]: Boogie Preprocessor took 21.91 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:19,565 INFO L168 Benchmark]: RCFGBuilder took 472.72 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:19,566 INFO L168 Benchmark]: TraceAbstraction took 3773.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 128.5 MB). Free memory was 1.1 GB in the beginning and 891.5 MB in the end (delta: 179.6 MB). Peak memory consumption was 308.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:19,566 INFO L168 Benchmark]: Witness Printer took 89.26 ms. Allocated memory is still 1.3 GB. Free memory was 891.5 MB in the beginning and 888.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:19,568 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 673.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.88 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. * Boogie Preprocessor took 21.91 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 472.72 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3773.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 128.5 MB). Free memory was 1.1 GB in the beginning and 891.5 MB in the end (delta: 179.6 MB). Peak memory consumption was 308.0 MB. Max. memory is 11.5 GB. * Witness Printer took 89.26 ms. Allocated memory is still 1.3 GB. Free memory was 891.5 MB in the beginning and 888.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 17 procedures, 115 locations, 1 error locations. Result: SAFE, OverallTime: 3.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 470 SDtfs, 836 SDslu, 1295 SDs, 0 SdLazy, 177 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5475occurred 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: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 39038 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...