./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_pso.opt.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_f6bdbf8c-23bf-4da9-a719-2720028fc70c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/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 23d6b37cce6e4e70f463b4fcfeceed30aecb1d10 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:52:23,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:23,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:23,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:23,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:23,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:23,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:23,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:23,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:23,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:23,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:23,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:23,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:23,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:23,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:23,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:23,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:23,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:23,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:23,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:23,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:23,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:23,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:23,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:23,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:23,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:23,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:23,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:23,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:23,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:23,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:23,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:23,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:23,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:23,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:23,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:23,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:23,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:23,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:23,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:23,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:23,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:52:23,344 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:23,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:23,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:23,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:23,346 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:23,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:23,347 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:23,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:23,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:23,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:23,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:52:23,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:52:23,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:52:23,348 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:23,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:52:23,348 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:23,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:52:23,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:23,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:23,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:52:23,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:52:23,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:23,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:23,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:52:23,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:52:23,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:52:23,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:52:23,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:52:23,351 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_f6bdbf8c-23bf-4da9-a719-2720028fc70c/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 -> 23d6b37cce6e4e70f463b4fcfeceed30aecb1d10 [2019-11-25 08:52:23,484 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:23,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:23,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:23,499 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:23,499 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:23,500 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe027_pso.opt.i [2019-11-25 08:52:23,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/bin/uautomizer/data/1d225f7d6/debacf2ac78341989e46eee699afb42f/FLAGf4b30bb43 [2019-11-25 08:52:24,028 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:24,028 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/sv-benchmarks/c/pthread-wmm/safe027_pso.opt.i [2019-11-25 08:52:24,043 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/bin/uautomizer/data/1d225f7d6/debacf2ac78341989e46eee699afb42f/FLAGf4b30bb43 [2019-11-25 08:52:24,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/bin/uautomizer/data/1d225f7d6/debacf2ac78341989e46eee699afb42f [2019-11-25 08:52:24,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:24,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:52:24,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:24,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:24,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:24,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:24" (1/1) ... [2019-11-25 08:52:24,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a15ffbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24, skipping insertion in model container [2019-11-25 08:52:24,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:24" (1/1) ... [2019-11-25 08:52:24,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:24,112 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:24,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:24,504 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:24,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:24,615 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:24,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24 WrapperNode [2019-11-25 08:52:24,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:24,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:24,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:52:24,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:52:24,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24" (1/1) ... [2019-11-25 08:52:24,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24" (1/1) ... [2019-11-25 08:52:24,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:24,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:24,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:24,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:24,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24" (1/1) ... [2019-11-25 08:52:24,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24" (1/1) ... [2019-11-25 08:52:24,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24" (1/1) ... [2019-11-25 08:52:24,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24" (1/1) ... [2019-11-25 08:52:24,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24" (1/1) ... [2019-11-25 08:52:24,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24" (1/1) ... [2019-11-25 08:52:24,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24" (1/1) ... [2019-11-25 08:52:24,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:24,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:24,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:24,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:24,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/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 08:52:24,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:52:24,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:52:24,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:52:24,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:52:24,778 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:52:24,778 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:52:24,778 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:52:24,779 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:52:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:52:24,779 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:52:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-25 08:52:24,779 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-25 08:52:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:52:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:24,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:24,781 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 08:52:25,087 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:25,088 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:52:25,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:25 BoogieIcfgContainer [2019-11-25 08:52:25,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:25,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:25,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:25,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:25,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:52:24" (1/3) ... [2019-11-25 08:52:25,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3d11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:25, skipping insertion in model container [2019-11-25 08:52:25,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:24" (2/3) ... [2019-11-25 08:52:25,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3d11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:25, skipping insertion in model container [2019-11-25 08:52:25,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:25" (3/3) ... [2019-11-25 08:52:25,095 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2019-11-25 08:52:25,178 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,178 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,179 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,179 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,179 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,179 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,180 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,180 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,180 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,180 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,180 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,181 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,181 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,181 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,181 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,181 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,182 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,182 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,183 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,183 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,183 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,183 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,183 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,184 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,184 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,184 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,184 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,184 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,185 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,185 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,185 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,185 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,185 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,185 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,186 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,186 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,186 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,186 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,188 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,189 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,190 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,190 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,191 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,191 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,192 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,192 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,192 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,193 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,193 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,193 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,193 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,194 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,194 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,194 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,195 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,195 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,195 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,195 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,195 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,196 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,196 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,197 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,197 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,197 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,198 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,198 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,199 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,199 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,199 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,199 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,200 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,200 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:25,247 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:52:25,247 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:25,253 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:52:25,263 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:52:25,284 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:25,284 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:52:25,284 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:25,284 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:25,285 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:25,285 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:25,285 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:25,285 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:25,306 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 93 transitions [2019-11-25 08:52:25,847 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5473 states. [2019-11-25 08:52:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states. [2019-11-25 08:52:25,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-25 08:52:25,879 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:25,880 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] [2019-11-25 08:52:25,880 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:25,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:25,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1039628048, now seen corresponding path program 1 times [2019-11-25 08:52:25,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:25,896 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290374335] [2019-11-25 08:52:25,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:26,267 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 08:52:26,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290374335] [2019-11-25 08:52:26,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:26,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:52:26,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017933202] [2019-11-25 08:52:26,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:52:26,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:26,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:52:26,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:52:26,295 INFO L87 Difference]: Start difference. First operand 5473 states. Second operand 4 states. [2019-11-25 08:52:26,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:26,481 INFO L93 Difference]: Finished difference Result 5710 states and 21935 transitions. [2019-11-25 08:52:26,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:52:26,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-11-25 08:52:26,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:26,524 INFO L225 Difference]: With dead ends: 5710 [2019-11-25 08:52:26,525 INFO L226 Difference]: Without dead ends: 2394 [2019-11-25 08:52:26,526 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 08:52:26,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2019-11-25 08:52:26,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2394. [2019-11-25 08:52:26,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2394 states. [2019-11-25 08:52:26,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 8938 transitions. [2019-11-25 08:52:26,783 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 8938 transitions. Word has length 36 [2019-11-25 08:52:26,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:26,784 INFO L462 AbstractCegarLoop]: Abstraction has 2394 states and 8938 transitions. [2019-11-25 08:52:26,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:52:26,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 8938 transitions. [2019-11-25 08:52:26,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-25 08:52:26,790 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:26,791 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] [2019-11-25 08:52:26,791 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:26,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:26,792 INFO L82 PathProgramCache]: Analyzing trace with hash 870944544, now seen corresponding path program 1 times [2019-11-25 08:52:26,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:26,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271152587] [2019-11-25 08:52:26,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:26,985 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 08:52:26,985 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271152587] [2019-11-25 08:52:26,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:26,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:52:26,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2722687] [2019-11-25 08:52:26,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:52:26,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:26,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:52:26,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:52:26,989 INFO L87 Difference]: Start difference. First operand 2394 states and 8938 transitions. Second operand 5 states. [2019-11-25 08:52:27,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:27,105 INFO L93 Difference]: Finished difference Result 2565 states and 9322 transitions. [2019-11-25 08:52:27,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:52:27,106 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-11-25 08:52:27,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:27,126 INFO L225 Difference]: With dead ends: 2565 [2019-11-25 08:52:27,127 INFO L226 Difference]: Without dead ends: 2310 [2019-11-25 08:52:27,128 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 08:52:27,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2019-11-25 08:52:27,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2019-11-25 08:52:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2310 states. [2019-11-25 08:52:27,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 8546 transitions. [2019-11-25 08:52:27,223 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 8546 transitions. Word has length 37 [2019-11-25 08:52:27,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:27,223 INFO L462 AbstractCegarLoop]: Abstraction has 2310 states and 8546 transitions. [2019-11-25 08:52:27,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:52:27,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 8546 transitions. [2019-11-25 08:52:27,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:52:27,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:27,229 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 08:52:27,230 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:27,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:27,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1824304209, now seen corresponding path program 1 times [2019-11-25 08:52:27,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:27,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492925256] [2019-11-25 08:52:27,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:27,393 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 08:52:27,393 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492925256] [2019-11-25 08:52:27,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:27,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:52:27,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010746787] [2019-11-25 08:52:27,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:52:27,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:27,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:52:27,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:52:27,395 INFO L87 Difference]: Start difference. First operand 2310 states and 8546 transitions. Second operand 6 states. [2019-11-25 08:52:27,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:27,507 INFO L93 Difference]: Finished difference Result 2175 states and 7682 transitions. [2019-11-25 08:52:27,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:27,508 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-11-25 08:52:27,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:27,525 INFO L225 Difference]: With dead ends: 2175 [2019-11-25 08:52:27,525 INFO L226 Difference]: Without dead ends: 1932 [2019-11-25 08:52:27,526 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 08:52:27,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2019-11-25 08:52:27,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2019-11-25 08:52:27,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-11-25 08:52:27,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 6908 transitions. [2019-11-25 08:52:27,595 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 6908 transitions. Word has length 38 [2019-11-25 08:52:27,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:27,595 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 6908 transitions. [2019-11-25 08:52:27,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:52:27,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 6908 transitions. [2019-11-25 08:52:27,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-25 08:52:27,603 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:27,603 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 08:52:27,603 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:27,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:27,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1785519601, now seen corresponding path program 1 times [2019-11-25 08:52:27,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:27,605 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447170983] [2019-11-25 08:52:27,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:27,728 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 08:52:27,729 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447170983] [2019-11-25 08:52:27,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:27,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:52:27,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130554193] [2019-11-25 08:52:27,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:27,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:27,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:27,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:27,730 INFO L87 Difference]: Start difference. First operand 1932 states and 6908 transitions. Second operand 7 states. [2019-11-25 08:52:27,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:27,863 INFO L93 Difference]: Finished difference Result 1365 states and 4532 transitions. [2019-11-25 08:52:27,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:52:27,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-11-25 08:52:27,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:27,874 INFO L225 Difference]: With dead ends: 1365 [2019-11-25 08:52:27,874 INFO L226 Difference]: Without dead ends: 1176 [2019-11-25 08:52:27,878 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 08:52:27,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2019-11-25 08:52:27,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1176. [2019-11-25 08:52:27,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2019-11-25 08:52:27,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 3884 transitions. [2019-11-25 08:52:27,915 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 3884 transitions. Word has length 39 [2019-11-25 08:52:27,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:27,917 INFO L462 AbstractCegarLoop]: Abstraction has 1176 states and 3884 transitions. [2019-11-25 08:52:27,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:27,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 3884 transitions. [2019-11-25 08:52:27,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-25 08:52:27,920 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:27,927 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 08:52:27,927 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:27,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:27,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1731441706, now seen corresponding path program 1 times [2019-11-25 08:52:27,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:27,928 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511686866] [2019-11-25 08:52:27,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:28,095 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 08:52:28,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511686866] [2019-11-25 08:52:28,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:28,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:52:28,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679666745] [2019-11-25 08:52:28,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:52:28,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:28,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:52:28,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:52:28,101 INFO L87 Difference]: Start difference. First operand 1176 states and 3884 transitions. Second operand 8 states. [2019-11-25 08:52:28,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:28,233 INFO L93 Difference]: Finished difference Result 1725 states and 5777 transitions. [2019-11-25 08:52:28,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:28,233 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-11-25 08:52:28,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:28,240 INFO L225 Difference]: With dead ends: 1725 [2019-11-25 08:52:28,241 INFO L226 Difference]: Without dead ends: 876 [2019-11-25 08:52:28,241 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 08:52:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2019-11-25 08:52:28,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2019-11-25 08:52:28,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-11-25 08:52:28,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2888 transitions. [2019-11-25 08:52:28,268 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2888 transitions. Word has length 40 [2019-11-25 08:52:28,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:28,269 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 2888 transitions. [2019-11-25 08:52:28,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:52:28,269 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2888 transitions. [2019-11-25 08:52:28,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-25 08:52:28,271 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:28,271 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 08:52:28,271 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:28,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:28,272 INFO L82 PathProgramCache]: Analyzing trace with hash 502627164, now seen corresponding path program 2 times [2019-11-25 08:52:28,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:28,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304078244] [2019-11-25 08:52:28,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:28,448 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 08:52:28,448 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304078244] [2019-11-25 08:52:28,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:28,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:52:28,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587190831] [2019-11-25 08:52:28,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:28,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:28,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:28,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:28,450 INFO L87 Difference]: Start difference. First operand 876 states and 2888 transitions. Second operand 7 states. [2019-11-25 08:52:28,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:28,562 INFO L93 Difference]: Finished difference Result 1389 states and 4670 transitions. [2019-11-25 08:52:28,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:28,563 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-11-25 08:52:28,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:28,569 INFO L225 Difference]: With dead ends: 1389 [2019-11-25 08:52:28,570 INFO L226 Difference]: Without dead ends: 768 [2019-11-25 08:52:28,570 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:52:28,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-11-25 08:52:28,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2019-11-25 08:52:28,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-11-25 08:52:28,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 2576 transitions. [2019-11-25 08:52:28,596 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 2576 transitions. Word has length 40 [2019-11-25 08:52:28,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:28,597 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 2576 transitions. [2019-11-25 08:52:28,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:28,598 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 2576 transitions. [2019-11-25 08:52:28,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-25 08:52:28,600 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:28,601 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 08:52:28,601 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:28,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:28,601 INFO L82 PathProgramCache]: Analyzing trace with hash -714905248, now seen corresponding path program 3 times [2019-11-25 08:52:28,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:28,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766513852] [2019-11-25 08:52:28,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:28,693 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 08:52:28,693 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766513852] [2019-11-25 08:52:28,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:28,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:52:28,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528606438] [2019-11-25 08:52:28,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:28,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:28,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:28,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:28,694 INFO L87 Difference]: Start difference. First operand 768 states and 2576 transitions. Second operand 7 states. [2019-11-25 08:52:28,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:28,779 INFO L93 Difference]: Finished difference Result 1254 states and 4277 transitions. [2019-11-25 08:52:28,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:28,779 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-11-25 08:52:28,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:28,784 INFO L225 Difference]: With dead ends: 1254 [2019-11-25 08:52:28,784 INFO L226 Difference]: Without dead ends: 717 [2019-11-25 08:52:28,784 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 08:52:28,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-11-25 08:52:28,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2019-11-25 08:52:28,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-11-25 08:52:28,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 2432 transitions. [2019-11-25 08:52:28,805 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 2432 transitions. Word has length 40 [2019-11-25 08:52:28,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:28,806 INFO L462 AbstractCegarLoop]: Abstraction has 717 states and 2432 transitions. [2019-11-25 08:52:28,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:28,806 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 2432 transitions. [2019-11-25 08:52:28,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-25 08:52:28,808 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:28,808 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 08:52:28,808 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:28,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:28,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1960044418, now seen corresponding path program 4 times [2019-11-25 08:52:28,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:28,809 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757120935] [2019-11-25 08:52:28,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:28,938 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 08:52:28,938 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757120935] [2019-11-25 08:52:28,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:28,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:52:28,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201093480] [2019-11-25 08:52:28,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:28,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:28,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:28,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:28,939 INFO L87 Difference]: Start difference. First operand 717 states and 2432 transitions. Second operand 7 states. [2019-11-25 08:52:29,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:29,079 INFO L93 Difference]: Finished difference Result 555 states and 1838 transitions. [2019-11-25 08:52:29,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:52:29,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-11-25 08:52:29,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:29,080 INFO L225 Difference]: With dead ends: 555 [2019-11-25 08:52:29,080 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:52:29,080 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:52:29,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:52:29,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:52:29,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:52:29,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:52:29,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-11-25 08:52:29,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:29,081 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:52:29,081 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:29,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:52:29,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:52:29,085 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:52:29,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:52:29 BasicIcfg [2019-11-25 08:52:29,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:52:29,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:52:29,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:52:29,088 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:52:29,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:25" (3/4) ... [2019-11-25 08:52:29,092 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:52:29,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:52:29,118 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:52:29,118 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:52:29,118 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-25 08:52:29,123 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-25 08:52:29,125 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:52:29,125 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:52:29,164 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f6bdbf8c-23bf-4da9-a719-2720028fc70c/bin/uautomizer/witness.graphml [2019-11-25 08:52:29,165 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:52:29,166 INFO L168 Benchmark]: Toolchain (without parser) took 5106.01 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 225.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -125.0 MB). Peak memory consumption was 100.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:29,167 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:29,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:29,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.42 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 08:52:29,168 INFO L168 Benchmark]: Boogie Preprocessor took 57.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:29,169 INFO L168 Benchmark]: RCFGBuilder took 365.30 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:29,169 INFO L168 Benchmark]: TraceAbstraction took 3997.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 61.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.3 MB). Peak memory consumption was 96.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:29,170 INFO L168 Benchmark]: Witness Printer took 77.54 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:29,172 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 555.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.42 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 57.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 365.30 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3997.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 61.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.3 MB). Peak memory consumption was 96.2 MB. Max. memory is 11.5 GB. * Witness Printer took 77.54 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 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, 113 locations, 1 error locations. Result: SAFE, OverallTime: 3.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 479 SDtfs, 699 SDslu, 1362 SDs, 0 SdLazy, 193 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5473occurred 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, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 35816 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...