./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe037_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe037_power.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/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 a190c5321cf0335115ecaeb6c212bcdd640211a8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:55:54,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:54,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:54,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:54,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:54,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:54,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:54,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:54,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:54,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:54,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:54,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:54,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:54,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:54,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:54,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:54,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:54,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:54,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:54,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:54,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:54,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:54,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:54,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:54,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:54,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:54,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:54,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:54,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:54,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:54,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:54,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:54,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:54,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:54,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:54,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:54,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:54,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:54,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:54,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:54,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:54,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:55:54,593 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:54,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:54,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:54,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:54,595 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:54,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:54,595 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:54,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:54,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:54,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:54,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:54,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:54,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:54,596 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:54,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:54,596 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:54,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:54,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:54,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:54,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:54,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:54,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:54,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:54,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:54,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:54,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:54,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:54,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:54,598 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/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/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 -> a190c5321cf0335115ecaeb6c212bcdd640211a8 [2019-10-22 08:55:54,632 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:54,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:54,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:54,651 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:54,651 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:54,652 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe037_power.opt.i [2019-10-22 08:55:54,707 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/bin/uautomizer/data/e2113efe1/165eca084b24410f983f3af8abe5265e/FLAGcfdae893f [2019-10-22 08:55:55,195 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:55,195 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/sv-benchmarks/c/pthread-wmm/safe037_power.opt.i [2019-10-22 08:55:55,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/bin/uautomizer/data/e2113efe1/165eca084b24410f983f3af8abe5265e/FLAGcfdae893f [2019-10-22 08:55:55,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/bin/uautomizer/data/e2113efe1/165eca084b24410f983f3af8abe5265e [2019-10-22 08:55:55,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:55,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:55,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:55,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:55,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:55,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cafd39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:55, skipping insertion in model container [2019-10-22 08:55:55,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:55" (1/1) ... [2019-10-22 08:55:55,706 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:55,750 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:56,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:56,175 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:56,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:56,305 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:56,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56 WrapperNode [2019-10-22 08:55:56,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:56,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:56,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:56,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:56,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:56,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:56,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:56,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:56,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:56,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:56,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:56,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:56,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/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 [2019-10-22 08:55:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:55:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:55:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:55:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:55:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:55:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:55:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:55:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:55:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 08:55:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 08:55:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:55:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:56,439 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:55:56,789 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:56,789 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:55:56,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:56 BoogieIcfgContainer [2019-10-22 08:55:56,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:56,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:56,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:56,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:56,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:55" (1/3) ... [2019-10-22 08:55:56,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4bf7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:56, skipping insertion in model container [2019-10-22 08:55:56,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56" (2/3) ... [2019-10-22 08:55:56,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4bf7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:56, skipping insertion in model container [2019-10-22 08:55:56,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:56" (3/3) ... [2019-10-22 08:55:56,798 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_power.opt.i [2019-10-22 08:55:56,829 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,830 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,830 WARN L315 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,830 WARN L315 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,830 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,830 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,831 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,831 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,831 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,831 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,832 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,832 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,832 WARN L315 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,832 WARN L315 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,832 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,832 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,833 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,833 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,833 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,833 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,833 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,834 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,834 WARN L315 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,834 WARN L315 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,834 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,834 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,834 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,834 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,835 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,835 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:56,844 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:55:56,844 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:56,852 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:55:56,868 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:55:56,887 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:56,887 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:56,887 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:56,887 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:56,888 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:56,888 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:56,888 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:56,888 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:56,897 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 54 transitions [2019-10-22 08:55:57,042 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2019-10-22 08:55:57,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2019-10-22 08:55:57,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:55:57,062 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:57,062 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:57,064 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:57,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:57,069 INFO L82 PathProgramCache]: Analyzing trace with hash -735775812, now seen corresponding path program 1 times [2019-10-22 08:55:57,077 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:57,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083179128] [2019-10-22 08:55:57,078 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,078 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:57,412 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083179128] [2019-10-22 08:55:57,412 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:57,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:55:57,413 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839200144] [2019-10-22 08:55:57,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:57,417 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:57,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:57,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:57,433 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2019-10-22 08:55:57,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:57,526 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2019-10-22 08:55:57,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:55:57,532 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-22 08:55:57,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:57,566 INFO L225 Difference]: With dead ends: 2494 [2019-10-22 08:55:57,566 INFO L226 Difference]: Without dead ends: 1129 [2019-10-22 08:55:57,568 INFO L600 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 [2019-10-22 08:55:57,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2019-10-22 08:55:57,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2019-10-22 08:55:57,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2019-10-22 08:55:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2019-10-22 08:55:57,677 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2019-10-22 08:55:57,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:57,678 INFO L462 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2019-10-22 08:55:57,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:55:57,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2019-10-22 08:55:57,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:55:57,682 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:57,682 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:57,682 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:57,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:57,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1344942524, now seen corresponding path program 1 times [2019-10-22 08:55:57,683 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:57,683 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266384337] [2019-10-22 08:55:57,683 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,684 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:57,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:57,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266384337] [2019-10-22 08:55:57,840 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:57,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:55:57,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116688167] [2019-10-22 08:55:57,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:55:57,842 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:57,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:55:57,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:57,842 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2019-10-22 08:55:57,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:57,902 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2019-10-22 08:55:57,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:55:57,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-10-22 08:55:57,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:57,909 INFO L225 Difference]: With dead ends: 1169 [2019-10-22 08:55:57,909 INFO L226 Difference]: Without dead ends: 1045 [2019-10-22 08:55:57,910 INFO L600 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 [2019-10-22 08:55:57,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-10-22 08:55:57,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2019-10-22 08:55:57,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2019-10-22 08:55:57,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2019-10-22 08:55:57,952 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2019-10-22 08:55:57,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:57,952 INFO L462 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2019-10-22 08:55:57,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:55:57,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2019-10-22 08:55:57,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:55:57,956 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:57,956 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:57,956 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:57,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:57,956 INFO L82 PathProgramCache]: Analyzing trace with hash 580195210, now seen corresponding path program 1 times [2019-10-22 08:55:57,957 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:57,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680000820] [2019-10-22 08:55:57,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:57,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:58,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:58,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680000820] [2019-10-22 08:55:58,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:58,082 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:55:58,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654245171] [2019-10-22 08:55:58,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:55:58,082 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:58,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:55:58,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:55:58,085 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2019-10-22 08:55:58,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:58,171 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2019-10-22 08:55:58,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:55:58,172 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-10-22 08:55:58,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:58,176 INFO L225 Difference]: With dead ends: 821 [2019-10-22 08:55:58,176 INFO L226 Difference]: Without dead ends: 709 [2019-10-22 08:55:58,177 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:58,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-10-22 08:55:58,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2019-10-22 08:55:58,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-10-22 08:55:58,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2019-10-22 08:55:58,199 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2019-10-22 08:55:58,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:58,200 INFO L462 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2019-10-22 08:55:58,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:55:58,200 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2019-10-22 08:55:58,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 08:55:58,202 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:58,202 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:58,202 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:58,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:58,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1488770432, now seen corresponding path program 1 times [2019-10-22 08:55:58,203 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:58,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325934190] [2019-10-22 08:55:58,203 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,203 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:58,413 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325934190] [2019-10-22 08:55:58,414 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:58,414 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:55:58,414 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279892288] [2019-10-22 08:55:58,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:55:58,415 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:58,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:55:58,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:55:58,415 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 7 states. [2019-10-22 08:55:58,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:58,551 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2019-10-22 08:55:58,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:55:58,551 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-10-22 08:55:58,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:58,555 INFO L225 Difference]: With dead ends: 1109 [2019-10-22 08:55:58,555 INFO L226 Difference]: Without dead ends: 645 [2019-10-22 08:55:58,556 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:55:58,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2019-10-22 08:55:58,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 629. [2019-10-22 08:55:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2019-10-22 08:55:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1828 transitions. [2019-10-22 08:55:58,575 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1828 transitions. Word has length 34 [2019-10-22 08:55:58,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:58,576 INFO L462 AbstractCegarLoop]: Abstraction has 629 states and 1828 transitions. [2019-10-22 08:55:58,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:55:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1828 transitions. [2019-10-22 08:55:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 08:55:58,578 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:58,578 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:58,578 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:58,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:58,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1490039560, now seen corresponding path program 2 times [2019-10-22 08:55:58,578 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:58,579 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526078845] [2019-10-22 08:55:58,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:58,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:58,672 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526078845] [2019-10-22 08:55:58,672 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:58,672 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:55:58,672 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826649948] [2019-10-22 08:55:58,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:55:58,673 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:58,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:55:58,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:55:58,673 INFO L87 Difference]: Start difference. First operand 629 states and 1828 transitions. Second operand 7 states. [2019-10-22 08:55:58,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:58,814 INFO L93 Difference]: Finished difference Result 1029 states and 3052 transitions. [2019-10-22 08:55:58,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:55:58,815 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-10-22 08:55:58,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:58,818 INFO L225 Difference]: With dead ends: 1029 [2019-10-22 08:55:58,819 INFO L226 Difference]: Without dead ends: 593 [2019-10-22 08:55:58,819 INFO L600 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 [2019-10-22 08:55:58,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-22 08:55:58,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 577. [2019-10-22 08:55:58,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-22 08:55:58,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 1712 transitions. [2019-10-22 08:55:58,837 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 1712 transitions. Word has length 34 [2019-10-22 08:55:58,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:58,838 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 1712 transitions. [2019-10-22 08:55:58,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:55:58,838 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 1712 transitions. [2019-10-22 08:55:58,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 08:55:58,840 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:58,840 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:58,840 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:58,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:58,840 INFO L82 PathProgramCache]: Analyzing trace with hash -811085094, now seen corresponding path program 3 times [2019-10-22 08:55:58,841 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:58,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569809152] [2019-10-22 08:55:58,841 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,841 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:58,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:58,942 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569809152] [2019-10-22 08:55:58,942 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:58,943 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:55:58,943 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716461651] [2019-10-22 08:55:58,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:55:58,943 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:58,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:55:58,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:55:58,944 INFO L87 Difference]: Start difference. First operand 577 states and 1712 transitions. Second operand 7 states. [2019-10-22 08:55:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:59,086 INFO L93 Difference]: Finished difference Result 449 states and 1296 transitions. [2019-10-22 08:55:59,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:55:59,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-10-22 08:55:59,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:59,087 INFO L225 Difference]: With dead ends: 449 [2019-10-22 08:55:59,087 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:55:59,087 INFO L600 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 [2019-10-22 08:55:59,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:55:59,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:55:59,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:55:59,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:55:59,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-10-22 08:55:59,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:59,088 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:59,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:55:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:55:59,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:55:59,091 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:55:59,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:59 BasicIcfg [2019-10-22 08:55:59,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:59,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:59,094 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:59,094 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:59,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:56" (3/4) ... [2019-10-22 08:55:59,098 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:55:59,104 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:55:59,104 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:55:59,105 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 08:55:59,108 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 08:55:59,108 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:55:59,144 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f6d435b1-d021-4aff-b9fa-b3b9eabef494/bin/uautomizer/witness.graphml [2019-10-22 08:55:59,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:59,150 INFO L168 Benchmark]: Toolchain (without parser) took 3465.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.5 MB). Free memory was 945.9 MB in the beginning and 1.2 GB in the end (delta: -230.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:59,150 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:59,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:59,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.83 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. [2019-10-22 08:55:59,151 INFO L168 Benchmark]: Boogie Preprocessor took 21.98 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. [2019-10-22 08:55:59,151 INFO L168 Benchmark]: RCFGBuilder took 421.33 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:59,151 INFO L168 Benchmark]: TraceAbstraction took 2302.13 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -108.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:59,152 INFO L168 Benchmark]: Witness Printer took 54.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:59,153 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 621.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.98 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 421.33 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2302.13 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -108.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 54.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 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 7 procedures, 72 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 378 SDtfs, 431 SDslu, 1016 SDs, 0 SdLazy, 119 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 32 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 17502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...