./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036_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_3173b451-ee6e-4cd3-9679-cd7647725612/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/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 6adb7a257cb648ebc36e7e3fee95502661bbf605 .................................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:54:45,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:45,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:45,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:45,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:45,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:45,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:45,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:45,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:45,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:45,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:45,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:45,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:45,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:45,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:45,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:45,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:45,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:45,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:45,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:45,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:45,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:45,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:45,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:45,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:45,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:45,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:45,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:45,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:45,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:45,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:45,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:45,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:45,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:45,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:45,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:45,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:45,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:45,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:45,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:45,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:45,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:54:45,475 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:45,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:45,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:45,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:45,477 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:45,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:45,478 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:45,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:54:45,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:45,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:45,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:54:45,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:54:45,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:54:45,479 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:45,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:45,480 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:45,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:54:45,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:45,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:45,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:54:45,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:54:45,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:45,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:45,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:54:45,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:54:45,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:54:45,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:54:45,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:54:45,483 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_3173b451-ee6e-4cd3-9679-cd7647725612/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 -> 6adb7a257cb648ebc36e7e3fee95502661bbf605 [2019-11-25 08:54:45,620 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:45,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:45,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:45,635 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:45,635 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:45,636 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe036_pso.opt.i [2019-11-25 08:54:45,687 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/bin/uautomizer/data/21bb1803c/352bd2a04c8e4f738a36710eecb3c6ff/FLAG51028315c [2019-11-25 08:54:46,188 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:46,192 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/sv-benchmarks/c/pthread-wmm/safe036_pso.opt.i [2019-11-25 08:54:46,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/bin/uautomizer/data/21bb1803c/352bd2a04c8e4f738a36710eecb3c6ff/FLAG51028315c [2019-11-25 08:54:46,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/bin/uautomizer/data/21bb1803c/352bd2a04c8e4f738a36710eecb3c6ff [2019-11-25 08:54:46,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:46,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:46,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:46,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:46,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:46,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:46" (1/1) ... [2019-11-25 08:54:46,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38046938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:46, skipping insertion in model container [2019-11-25 08:54:46,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:46" (1/1) ... [2019-11-25 08:54:46,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:46,757 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:47,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:47,122 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:47,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:47,232 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:47,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47 WrapperNode [2019-11-25 08:54:47,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:47,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:47,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:47,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:47,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47" (1/1) ... [2019-11-25 08:54:47,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47" (1/1) ... [2019-11-25 08:54:47,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:47,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:47,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:47,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:47,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47" (1/1) ... [2019-11-25 08:54:47,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47" (1/1) ... [2019-11-25 08:54:47,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47" (1/1) ... [2019-11-25 08:54:47,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47" (1/1) ... [2019-11-25 08:54:47,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47" (1/1) ... [2019-11-25 08:54:47,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47" (1/1) ... [2019-11-25 08:54:47,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47" (1/1) ... [2019-11-25 08:54:47,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:47,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:47,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:47,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:47,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/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 08:54:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:54:47,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:54:47,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:54:47,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:54:47,364 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:54:47,365 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:54:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:54:47,365 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:54:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:54:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:47,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:47,369 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 08:54:47,626 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:47,628 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:54:47,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:47 BoogieIcfgContainer [2019-11-25 08:54:47,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:47,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:54:47,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:54:47,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:54:47,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:54:46" (1/3) ... [2019-11-25 08:54:47,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe15561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:47, skipping insertion in model container [2019-11-25 08:54:47,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:47" (2/3) ... [2019-11-25 08:54:47,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe15561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:47, skipping insertion in model container [2019-11-25 08:54:47,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:47" (3/3) ... [2019-11-25 08:54:47,642 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_pso.opt.i [2019-11-25 08:54:47,679 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,679 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,680 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,680 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,680 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,680 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,681 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,681 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,681 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,681 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,682 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,682 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,682 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,683 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,683 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,683 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,683 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,683 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,684 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,684 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,684 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,684 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,685 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,685 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,685 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,686 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,686 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,686 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,686 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,686 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,687 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,687 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,687 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,687 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,688 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,688 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:47,720 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:54:47,721 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:54:47,726 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:54:47,735 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:54:47,754 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:54:47,754 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:54:47,755 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:54:47,755 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:47,755 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:47,755 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:54:47,755 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:47,756 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:54:47,769 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 57 transitions [2019-11-25 08:54:47,821 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 287 states. [2019-11-25 08:54:47,823 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2019-11-25 08:54:47,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-25 08:54:47,833 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:47,833 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 08:54:47,834 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:47,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:47,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1002264270, now seen corresponding path program 1 times [2019-11-25 08:54:47,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:47,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902089290] [2019-11-25 08:54:47,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:48,138 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 08:54:48,139 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902089290] [2019-11-25 08:54:48,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:48,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:54:48,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186909638] [2019-11-25 08:54:48,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:54:48,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:48,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:54:48,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:48,160 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 4 states. [2019-11-25 08:54:48,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:48,239 INFO L93 Difference]: Finished difference Result 288 states and 647 transitions. [2019-11-25 08:54:48,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:54:48,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-11-25 08:54:48,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:48,265 INFO L225 Difference]: With dead ends: 288 [2019-11-25 08:54:48,265 INFO L226 Difference]: Without dead ends: 152 [2019-11-25 08:54:48,266 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 08:54:48,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-25 08:54:48,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-11-25 08:54:48,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-25 08:54:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 326 transitions. [2019-11-25 08:54:48,340 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 326 transitions. Word has length 26 [2019-11-25 08:54:48,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:48,341 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 326 transitions. [2019-11-25 08:54:48,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:54:48,341 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 326 transitions. [2019-11-25 08:54:48,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-25 08:54:48,343 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:48,344 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 08:54:48,345 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:48,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:48,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1076917334, now seen corresponding path program 1 times [2019-11-25 08:54:48,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:48,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86055361] [2019-11-25 08:54:48,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:48,481 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 08:54:48,482 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86055361] [2019-11-25 08:54:48,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:48,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:54:48,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429737853] [2019-11-25 08:54:48,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:54:48,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:48,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:54:48,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:48,484 INFO L87 Difference]: Start difference. First operand 152 states and 326 transitions. Second operand 5 states. [2019-11-25 08:54:48,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:48,549 INFO L93 Difference]: Finished difference Result 125 states and 242 transitions. [2019-11-25 08:54:48,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:54:48,551 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-25 08:54:48,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:48,552 INFO L225 Difference]: With dead ends: 125 [2019-11-25 08:54:48,553 INFO L226 Difference]: Without dead ends: 110 [2019-11-25 08:54:48,553 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 08:54:48,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-25 08:54:48,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-25 08:54:48,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-25 08:54:48,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 214 transitions. [2019-11-25 08:54:48,565 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 214 transitions. Word has length 27 [2019-11-25 08:54:48,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:48,565 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 214 transitions. [2019-11-25 08:54:48,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:54:48,565 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 214 transitions. [2019-11-25 08:54:48,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-25 08:54:48,566 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:48,566 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 08:54:48,566 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:48,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:48,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1198424208, now seen corresponding path program 1 times [2019-11-25 08:54:48,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:48,567 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79121246] [2019-11-25 08:54:48,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:48,692 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 08:54:48,692 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79121246] [2019-11-25 08:54:48,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:48,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:54:48,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468697739] [2019-11-25 08:54:48,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:54:48,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:48,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:54:48,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:54:48,694 INFO L87 Difference]: Start difference. First operand 110 states and 214 transitions. Second operand 7 states. [2019-11-25 08:54:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:48,846 INFO L93 Difference]: Finished difference Result 164 states and 331 transitions. [2019-11-25 08:54:48,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:54:48,847 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-25 08:54:48,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:48,848 INFO L225 Difference]: With dead ends: 164 [2019-11-25 08:54:48,849 INFO L226 Difference]: Without dead ends: 95 [2019-11-25 08:54:48,849 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 08:54:48,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-25 08:54:48,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-11-25 08:54:48,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-11-25 08:54:48,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 184 transitions. [2019-11-25 08:54:48,859 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 184 transitions. Word has length 28 [2019-11-25 08:54:48,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:48,859 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 184 transitions. [2019-11-25 08:54:48,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:54:48,859 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 184 transitions. [2019-11-25 08:54:48,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-25 08:54:48,862 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:48,862 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 08:54:48,862 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:48,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:48,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1381907074, now seen corresponding path program 2 times [2019-11-25 08:54:48,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:48,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15824693] [2019-11-25 08:54:48,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:48,981 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 08:54:48,981 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15824693] [2019-11-25 08:54:48,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:48,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:54:48,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516532157] [2019-11-25 08:54:48,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:54:48,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:48,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:54:48,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:54:48,983 INFO L87 Difference]: Start difference. First operand 95 states and 184 transitions. Second operand 7 states. [2019-11-25 08:54:49,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:49,084 INFO L93 Difference]: Finished difference Result 77 states and 142 transitions. [2019-11-25 08:54:49,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:54:49,084 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-25 08:54:49,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:49,084 INFO L225 Difference]: With dead ends: 77 [2019-11-25 08:54:49,084 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:54:49,085 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 08:54:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:54:49,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:54:49,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:54:49,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:54:49,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-11-25 08:54:49,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:49,086 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:49,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:54:49,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:54:49,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:54:49,089 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:54:49,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:54:49 BasicIcfg [2019-11-25 08:54:49,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:54:49,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:49,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:49,092 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:49,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:47" (3/4) ... [2019-11-25 08:54:49,095 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:54:49,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:54:49,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:54:49,108 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-25 08:54:49,109 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:54:49,109 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:54:49,171 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3173b451-ee6e-4cd3-9679-cd7647725612/bin/uautomizer/witness.graphml [2019-11-25 08:54:49,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:49,176 INFO L168 Benchmark]: Toolchain (without parser) took 2466.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 939.3 MB in the beginning and 962.1 MB in the end (delta: -22.8 MB). Peak memory consumption was 126.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:49,176 INFO L168 Benchmark]: CDTParser took 0.25 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 08:54:49,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 524.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:49,177 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.25 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 08:54:49,177 INFO L168 Benchmark]: Boogie Preprocessor took 22.09 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 08:54:49,178 INFO L168 Benchmark]: RCFGBuilder took 332.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:49,178 INFO L168 Benchmark]: TraceAbstraction took 1461.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.8 MB in the end (delta: 114.5 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:49,179 INFO L168 Benchmark]: Witness Printer took 82.56 ms. Allocated memory is still 1.2 GB. Free memory was 968.8 MB in the beginning and 962.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:49,181 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 524.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.25 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 22.09 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 332.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1461.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.8 MB in the end (delta: 114.5 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. * Witness Printer took 82.56 ms. Allocated memory is still 1.2 GB. Free memory was 968.8 MB in the beginning and 962.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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, 400 SDs, 0 SdLazy, 58 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, 7383 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...