./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036_power.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_cf40c580-f8f0-48e0-a3e6-2077189d0688/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036_power.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/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 adb48f6c8d8e02c0dd8c0a40b68d79584a308308 ................................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:53:21,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:21,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:21,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:21,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:21,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:21,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:21,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:21,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:21,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:21,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:21,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:21,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:21,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:21,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:21,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:21,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:21,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:21,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:21,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:21,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:21,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:21,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:21,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:21,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:21,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:21,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:21,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:21,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:21,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:21,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:21,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:21,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:21,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:21,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:21,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:21,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:21,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:21,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:21,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:21,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:21,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:53:21,459 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:21,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:21,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:21,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:21,461 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:21,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:21,461 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:21,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:53:21,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:21,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:21,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:53:21,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:53:21,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:53:21,462 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:21,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:21,463 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:21,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:53:21,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:21,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:21,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:53:21,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:53:21,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:21,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:21,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:53:21,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:53:21,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:53:21,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:53:21,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:53:21,465 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_cf40c580-f8f0-48e0-a3e6-2077189d0688/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 -> adb48f6c8d8e02c0dd8c0a40b68d79584a308308 [2019-11-25 08:53:21,596 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:21,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:21,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:21,615 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:21,615 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:21,616 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe036_power.opt.i [2019-11-25 08:53:21,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/bin/uautomizer/data/33b39c34a/7313510fbc9c4783a3f3f7f97cc83b85/FLAGccfa397a2 [2019-11-25 08:53:22,145 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:22,145 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/sv-benchmarks/c/pthread-wmm/safe036_power.opt.i [2019-11-25 08:53:22,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/bin/uautomizer/data/33b39c34a/7313510fbc9c4783a3f3f7f97cc83b85/FLAGccfa397a2 [2019-11-25 08:53:22,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/bin/uautomizer/data/33b39c34a/7313510fbc9c4783a3f3f7f97cc83b85 [2019-11-25 08:53:22,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:22,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:22,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:22,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:22,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:22,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:22" (1/1) ... [2019-11-25 08:53:22,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1873f192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22, skipping insertion in model container [2019-11-25 08:53:22,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:22" (1/1) ... [2019-11-25 08:53:22,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:22,224 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:22,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:22,701 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:22,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:22,832 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:22,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22 WrapperNode [2019-11-25 08:53:22,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:22,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:22,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:22,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:22,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22" (1/1) ... [2019-11-25 08:53:22,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22" (1/1) ... [2019-11-25 08:53:22,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:22,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:22,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:22,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:22,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22" (1/1) ... [2019-11-25 08:53:22,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22" (1/1) ... [2019-11-25 08:53:22,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22" (1/1) ... [2019-11-25 08:53:22,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22" (1/1) ... [2019-11-25 08:53:22,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22" (1/1) ... [2019-11-25 08:53:22,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22" (1/1) ... [2019-11-25 08:53:22,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22" (1/1) ... [2019-11-25 08:53:22,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:22,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:22,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:22,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:22,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/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 08:53:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:53:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:53:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:53:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:53:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:53:22,974 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:53:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:53:22,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:53:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:53:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:22,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:22,979 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 08:53:23,215 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:23,215 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:53:23,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:23 BoogieIcfgContainer [2019-11-25 08:53:23,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:23,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:53:23,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:53:23,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:53:23,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:53:22" (1/3) ... [2019-11-25 08:53:23,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d74f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:23, skipping insertion in model container [2019-11-25 08:53:23,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:22" (2/3) ... [2019-11-25 08:53:23,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d74f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:23, skipping insertion in model container [2019-11-25 08:53:23,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:23" (3/3) ... [2019-11-25 08:53:23,223 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_power.opt.i [2019-11-25 08:53:23,259 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,259 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,259 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,259 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,260 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,260 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,261 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,261 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,261 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,261 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,261 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,262 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,262 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,262 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,262 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,263 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,263 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,263 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,264 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,264 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,264 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,264 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,265 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,265 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,265 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,265 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,266 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,266 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,266 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,266 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,267 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,267 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,267 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,267 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,268 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,268 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:53:23,326 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:53:23,326 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:53:23,331 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:53:23,339 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:53:23,358 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:53:23,358 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:53:23,358 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:53:23,358 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:23,358 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:23,358 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:53:23,359 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:23,359 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:53:23,368 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 57 transitions [2019-11-25 08:53:23,435 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 287 states. [2019-11-25 08:53:23,437 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2019-11-25 08:53:23,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-25 08:53:23,450 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:23,451 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] [2019-11-25 08:53:23,451 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:23,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:23,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1002264270, now seen corresponding path program 1 times [2019-11-25 08:53:23,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:23,464 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133074823] [2019-11-25 08:53:23,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:23,746 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 08:53:23,747 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133074823] [2019-11-25 08:53:23,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:23,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:53:23,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076537057] [2019-11-25 08:53:23,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:53:23,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:23,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:23,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:23,768 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 4 states. [2019-11-25 08:53:23,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:23,834 INFO L93 Difference]: Finished difference Result 288 states and 647 transitions. [2019-11-25 08:53:23,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:53:23,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-11-25 08:53:23,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:23,848 INFO L225 Difference]: With dead ends: 288 [2019-11-25 08:53:23,849 INFO L226 Difference]: Without dead ends: 152 [2019-11-25 08:53:23,850 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 08:53:23,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-25 08:53:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-11-25 08:53:23,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-25 08:53:23,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 326 transitions. [2019-11-25 08:53:23,894 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 326 transitions. Word has length 26 [2019-11-25 08:53:23,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:23,895 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 326 transitions. [2019-11-25 08:53:23,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:53:23,895 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 326 transitions. [2019-11-25 08:53:23,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-25 08:53:23,897 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:23,897 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] [2019-11-25 08:53:23,898 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:23,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:23,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1076917334, now seen corresponding path program 1 times [2019-11-25 08:53:23,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:23,899 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745029020] [2019-11-25 08:53:23,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:24,008 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 08:53:24,009 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745029020] [2019-11-25 08:53:24,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:24,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:53:24,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238128754] [2019-11-25 08:53:24,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:53:24,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:24,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:53:24,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:24,011 INFO L87 Difference]: Start difference. First operand 152 states and 326 transitions. Second operand 5 states. [2019-11-25 08:53:24,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:24,093 INFO L93 Difference]: Finished difference Result 125 states and 242 transitions. [2019-11-25 08:53:24,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:53:24,097 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-25 08:53:24,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:24,099 INFO L225 Difference]: With dead ends: 125 [2019-11-25 08:53:24,099 INFO L226 Difference]: Without dead ends: 110 [2019-11-25 08:53:24,100 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 08:53:24,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-25 08:53:24,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-25 08:53:24,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-25 08:53:24,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 214 transitions. [2019-11-25 08:53:24,125 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 214 transitions. Word has length 27 [2019-11-25 08:53:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:24,125 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 214 transitions. [2019-11-25 08:53:24,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:53:24,126 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 214 transitions. [2019-11-25 08:53:24,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-25 08:53:24,129 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:24,129 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] [2019-11-25 08:53:24,130 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:24,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:24,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1198424208, now seen corresponding path program 1 times [2019-11-25 08:53:24,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:24,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614004871] [2019-11-25 08:53:24,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:24,325 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 08:53:24,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614004871] [2019-11-25 08:53:24,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:24,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:53:24,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510453102] [2019-11-25 08:53:24,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:53:24,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:24,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:53:24,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:53:24,328 INFO L87 Difference]: Start difference. First operand 110 states and 214 transitions. Second operand 7 states. [2019-11-25 08:53:24,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:24,435 INFO L93 Difference]: Finished difference Result 164 states and 331 transitions. [2019-11-25 08:53:24,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:53:24,435 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-25 08:53:24,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:24,437 INFO L225 Difference]: With dead ends: 164 [2019-11-25 08:53:24,437 INFO L226 Difference]: Without dead ends: 95 [2019-11-25 08:53:24,437 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 08:53:24,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-25 08:53:24,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-11-25 08:53:24,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-11-25 08:53:24,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 184 transitions. [2019-11-25 08:53:24,450 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 184 transitions. Word has length 28 [2019-11-25 08:53:24,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:24,451 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 184 transitions. [2019-11-25 08:53:24,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:53:24,451 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 184 transitions. [2019-11-25 08:53:24,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-25 08:53:24,457 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:24,458 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] [2019-11-25 08:53:24,458 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:24,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:24,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1381907074, now seen corresponding path program 2 times [2019-11-25 08:53:24,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:24,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061702881] [2019-11-25 08:53:24,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:24,625 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 08:53:24,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061702881] [2019-11-25 08:53:24,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:24,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:53:24,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482450585] [2019-11-25 08:53:24,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:53:24,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:24,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:53:24,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:53:24,627 INFO L87 Difference]: Start difference. First operand 95 states and 184 transitions. Second operand 7 states. [2019-11-25 08:53:24,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:24,733 INFO L93 Difference]: Finished difference Result 77 states and 142 transitions. [2019-11-25 08:53:24,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:53:24,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-25 08:53:24,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:24,734 INFO L225 Difference]: With dead ends: 77 [2019-11-25 08:53:24,734 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:53:24,735 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 08:53:24,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:53:24,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:53:24,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:53:24,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:53:24,735 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-11-25 08:53:24,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:24,736 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:53:24,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:53:24,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:53:24,736 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:53:24,739 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:53:24,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:53:24 BasicIcfg [2019-11-25 08:53:24,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:53:24,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:53:24,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:53:24,745 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:53:24,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:23" (3/4) ... [2019-11-25 08:53:24,751 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:53:24,758 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:53:24,758 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:53:24,766 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-25 08:53:24,766 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:53:24,766 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:53:24,827 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cf40c580-f8f0-48e0-a3e6-2077189d0688/bin/uautomizer/witness.graphml [2019-11-25 08:53:24,828 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:53:24,830 INFO L168 Benchmark]: Toolchain (without parser) took 2655.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 939.3 MB in the beginning and 967.4 MB in the end (delta: -28.1 MB). Peak memory consumption was 118.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:24,830 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:24,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:24,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.40 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: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:24,832 INFO L168 Benchmark]: Boogie Preprocessor took 29.58 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 08:53:24,833 INFO L168 Benchmark]: RCFGBuilder took 312.70 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:24,833 INFO L168 Benchmark]: TraceAbstraction took 1527.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.9 MB in the end (delta: 112.5 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:24,834 INFO L168 Benchmark]: Witness Printer took 83.15 ms. Allocated memory is still 1.2 GB. Free memory was 974.9 MB in the beginning and 967.4 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:24,837 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 658.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.40 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: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 312.70 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1527.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.9 MB in the end (delta: 112.5 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. * Witness Printer took 83.15 ms. Allocated memory is still 1.2 GB. Free memory was 974.9 MB in the beginning and 967.4 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 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 9 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 155 SDtfs, 148 SDslu, 402 SDs, 0 SdLazy, 56 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=287occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 7059 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...