./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe015_tso.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_b8dcee34-4747-43a0-96de-197e17446d16/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe015_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/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 deda3f9fcb67c033d8f83486c61f7d9c036daef9 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:59:46,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:46,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:46,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:46,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:46,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:46,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:46,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:46,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:46,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:46,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:46,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:46,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:46,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:46,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:46,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:46,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:46,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:46,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:46,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:46,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:46,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:46,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:46,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:46,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:46,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:46,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:46,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:46,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:46,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:46,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:46,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:46,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:46,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:46,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:46,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:46,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:46,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:46,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:46,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:46,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:46,713 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:59:46,724 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:46,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:46,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:46,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:46,725 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:46,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:46,726 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:46,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:46,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:46,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:46,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:59:46,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:59:46,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:59:46,727 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:46,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:46,728 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:46,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:59:46,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:46,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:46,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:59:46,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:59:46,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:46,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:46,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:59:46,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:59:46,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:46,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:59:46,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:59:46,730 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_b8dcee34-4747-43a0-96de-197e17446d16/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 -> deda3f9fcb67c033d8f83486c61f7d9c036daef9 [2019-10-22 08:59:46,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:46,764 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:46,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:46,773 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:46,773 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:46,774 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe015_tso.opt.i [2019-10-22 08:59:46,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/bin/uautomizer/data/5f3e7bf47/d12fdd008534405bb11da3fa3c4767cc/FLAG3cade9efb [2019-10-22 08:59:47,233 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:47,234 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/sv-benchmarks/c/pthread-wmm/safe015_tso.opt.i [2019-10-22 08:59:47,246 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/bin/uautomizer/data/5f3e7bf47/d12fdd008534405bb11da3fa3c4767cc/FLAG3cade9efb [2019-10-22 08:59:47,258 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/bin/uautomizer/data/5f3e7bf47/d12fdd008534405bb11da3fa3c4767cc [2019-10-22 08:59:47,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:47,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:47,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:47,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:47,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:47,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:47" (1/1) ... [2019-10-22 08:59:47,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3c99f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47, skipping insertion in model container [2019-10-22 08:59:47,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:47" (1/1) ... [2019-10-22 08:59:47,280 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:47,329 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:47,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:47,784 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:47,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:47,878 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:47,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47 WrapperNode [2019-10-22 08:59:47,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:47,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:47,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:47,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:47,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47" (1/1) ... [2019-10-22 08:59:47,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47" (1/1) ... [2019-10-22 08:59:47,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:47,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:47,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:47,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:47,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47" (1/1) ... [2019-10-22 08:59:47,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47" (1/1) ... [2019-10-22 08:59:47,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47" (1/1) ... [2019-10-22 08:59:47,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47" (1/1) ... [2019-10-22 08:59:47,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47" (1/1) ... [2019-10-22 08:59:47,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47" (1/1) ... [2019-10-22 08:59:47,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47" (1/1) ... [2019-10-22 08:59:47,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:47,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:47,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:47,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:47,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/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 08:59:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:59:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:59:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:59:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:59:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:59:47,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:59:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:59:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:59:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 08:59:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 08:59:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:59:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:47,987 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 08:59:48,205 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:48,205 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:59:48,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:48 BoogieIcfgContainer [2019-10-22 08:59:48,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:48,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:59:48,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:59:48,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:59:48,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:59:47" (1/3) ... [2019-10-22 08:59:48,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddcd2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:48, skipping insertion in model container [2019-10-22 08:59:48,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:47" (2/3) ... [2019-10-22 08:59:48,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddcd2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:48, skipping insertion in model container [2019-10-22 08:59:48,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:48" (3/3) ... [2019-10-22 08:59:48,212 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2019-10-22 08:59:48,242 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,251 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,251 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,251 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,252 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,252 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,252 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,252 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,252 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,253 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,253 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,253 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,253 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,253 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,254 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,254 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,254 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,254 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,254 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,254 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,255 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,255 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,255 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,256 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,256 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,256 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,256 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,256 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,257 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,257 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:48,308 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:59:48,309 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:59:48,315 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:59:48,330 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:59:48,351 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:59:48,351 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:59:48,351 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:59:48,351 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:48,352 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:48,352 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:59:48,352 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:48,352 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:59:48,360 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 52 transitions [2019-10-22 08:59:48,509 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2019-10-22 08:59:48,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2019-10-22 08:59:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:59:48,527 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:48,528 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] [2019-10-22 08:59:48,530 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:48,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:48,534 INFO L82 PathProgramCache]: Analyzing trace with hash -221608999, now seen corresponding path program 1 times [2019-10-22 08:59:48,541 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:48,541 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265927912] [2019-10-22 08:59:48,541 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:48,542 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:48,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:48,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:48,799 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265927912] [2019-10-22 08:59:48,800 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:48,801 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:59:48,801 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327049083] [2019-10-22 08:59:48,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:59:48,805 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:48,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:59:48,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:48,820 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2019-10-22 08:59:48,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:48,945 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2019-10-22 08:59:48,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:48,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-22 08:59:48,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:48,969 INFO L225 Difference]: With dead ends: 2492 [2019-10-22 08:59:48,969 INFO L226 Difference]: Without dead ends: 1127 [2019-10-22 08:59:48,971 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 08:59:48,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2019-10-22 08:59:49,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2019-10-22 08:59:49,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2019-10-22 08:59:49,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2019-10-22 08:59:49,097 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2019-10-22 08:59:49,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:49,098 INFO L462 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2019-10-22 08:59:49,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:59:49,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2019-10-22 08:59:49,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:59:49,105 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:49,105 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] [2019-10-22 08:59:49,106 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:49,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:49,106 INFO L82 PathProgramCache]: Analyzing trace with hash 107508439, now seen corresponding path program 1 times [2019-10-22 08:59:49,106 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:49,106 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746152315] [2019-10-22 08:59:49,107 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,107 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:49,202 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 08:59:49,202 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746152315] [2019-10-22 08:59:49,202 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:49,202 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:49,203 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954217768] [2019-10-22 08:59:49,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:59:49,204 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:49,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:49,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:49,205 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2019-10-22 08:59:49,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:49,262 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2019-10-22 08:59:49,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:49,263 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 08:59:49,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:49,268 INFO L225 Difference]: With dead ends: 1167 [2019-10-22 08:59:49,269 INFO L226 Difference]: Without dead ends: 1043 [2019-10-22 08:59:49,269 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 08:59:49,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-10-22 08:59:49,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2019-10-22 08:59:49,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-10-22 08:59:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2019-10-22 08:59:49,298 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2019-10-22 08:59:49,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:49,299 INFO L462 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2019-10-22 08:59:49,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:59:49,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2019-10-22 08:59:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:59:49,301 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:49,301 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 08:59:49,301 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:49,302 INFO L82 PathProgramCache]: Analyzing trace with hash -343595905, now seen corresponding path program 1 times [2019-10-22 08:59:49,302 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:49,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912327327] [2019-10-22 08:59:49,302 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,302 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:49,450 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 08:59:49,450 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912327327] [2019-10-22 08:59:49,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:49,451 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:59:49,452 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984561756] [2019-10-22 08:59:49,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:59:49,452 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:49,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:49,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:49,453 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2019-10-22 08:59:49,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:49,555 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2019-10-22 08:59:49,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:59:49,556 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 08:59:49,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:49,560 INFO L225 Difference]: With dead ends: 819 [2019-10-22 08:59:49,560 INFO L226 Difference]: Without dead ends: 707 [2019-10-22 08:59:49,560 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 08:59:49,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-22 08:59:49,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2019-10-22 08:59:49,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2019-10-22 08:59:49,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2019-10-22 08:59:49,585 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2019-10-22 08:59:49,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:49,586 INFO L462 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2019-10-22 08:59:49,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:59:49,586 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2019-10-22 08:59:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:59:49,588 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:49,588 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 08:59:49,589 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:49,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:49,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1836562069, now seen corresponding path program 1 times [2019-10-22 08:59:49,589 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:49,589 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814361917] [2019-10-22 08:59:49,590 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,590 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:49,715 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 08:59:49,716 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814361917] [2019-10-22 08:59:49,716 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:49,716 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:59:49,716 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306482150] [2019-10-22 08:59:49,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:59:49,717 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:49,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:49,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:49,718 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 6 states. [2019-10-22 08:59:49,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:49,813 INFO L93 Difference]: Finished difference Result 1107 states and 3290 transitions. [2019-10-22 08:59:49,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:49,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-10-22 08:59:49,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:49,816 INFO L225 Difference]: With dead ends: 1107 [2019-10-22 08:59:49,817 INFO L226 Difference]: Without dead ends: 591 [2019-10-22 08:59:49,817 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:59:49,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-10-22 08:59:49,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2019-10-22 08:59:49,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-22 08:59:49,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1754 transitions. [2019-10-22 08:59:49,839 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1754 transitions. Word has length 32 [2019-10-22 08:59:49,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:49,839 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 1754 transitions. [2019-10-22 08:59:49,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:59:49,840 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1754 transitions. [2019-10-22 08:59:49,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:59:49,843 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:49,843 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 08:59:49,843 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:49,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:49,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1258712379, now seen corresponding path program 2 times [2019-10-22 08:59:49,844 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:49,844 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814852672] [2019-10-22 08:59:49,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:49,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:49,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:49,985 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814852672] [2019-10-22 08:59:49,985 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:49,985 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:59:49,986 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796814250] [2019-10-22 08:59:49,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:59:49,986 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:49,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:59:49,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:59:49,987 INFO L87 Difference]: Start difference. First operand 591 states and 1754 transitions. Second operand 7 states. [2019-10-22 08:59:50,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:50,227 INFO L93 Difference]: Finished difference Result 991 states and 2978 transitions. [2019-10-22 08:59:50,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:59:50,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-10-22 08:59:50,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:50,230 INFO L225 Difference]: With dead ends: 991 [2019-10-22 08:59:50,230 INFO L226 Difference]: Without dead ends: 555 [2019-10-22 08:59:50,230 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 08:59:50,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2019-10-22 08:59:50,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2019-10-22 08:59:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2019-10-22 08:59:50,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1670 transitions. [2019-10-22 08:59:50,247 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1670 transitions. Word has length 32 [2019-10-22 08:59:50,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:50,247 INFO L462 AbstractCegarLoop]: Abstraction has 555 states and 1670 transitions. [2019-10-22 08:59:50,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:59:50,252 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1670 transitions. [2019-10-22 08:59:50,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:59:50,253 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:50,253 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 08:59:50,253 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:50,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:50,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1627235635, now seen corresponding path program 3 times [2019-10-22 08:59:50,254 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:50,254 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490070706] [2019-10-22 08:59:50,254 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:50,254 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:50,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:50,369 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 08:59:50,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490070706] [2019-10-22 08:59:50,370 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:50,370 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:59:50,370 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176226227] [2019-10-22 08:59:50,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:59:50,370 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:50,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:59:50,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:59:50,371 INFO L87 Difference]: Start difference. First operand 555 states and 1670 transitions. Second operand 8 states. [2019-10-22 08:59:50,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:50,439 INFO L93 Difference]: Finished difference Result 427 states and 1254 transitions. [2019-10-22 08:59:50,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:59:50,439 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-10-22 08:59:50,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:50,439 INFO L225 Difference]: With dead ends: 427 [2019-10-22 08:59:50,439 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:59:50,440 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:59:50,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:59:50,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:59:50,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:59:50,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:59:50,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-10-22 08:59:50,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:50,440 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:50,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:59:50,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:59:50,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:59:50,444 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:59:50,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:59:50 BasicIcfg [2019-10-22 08:59:50,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:59:50,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:50,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:50,446 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:50,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:48" (3/4) ... [2019-10-22 08:59:50,450 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:59:50,456 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:59:50,457 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:59:50,457 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 08:59:50,463 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 08:59:50,463 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:59:50,505 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b8dcee34-4747-43a0-96de-197e17446d16/bin/uautomizer/witness.graphml [2019-10-22 08:59:50,505 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:50,507 INFO L168 Benchmark]: Toolchain (without parser) took 3245.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 940.5 MB in the beginning and 1.0 GB in the end (delta: -91.0 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:50,508 INFO L168 Benchmark]: CDTParser took 0.15 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 08:59:50,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -150.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:50,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:50,509 INFO L168 Benchmark]: Boogie Preprocessor took 23.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:50,510 INFO L168 Benchmark]: RCFGBuilder took 269.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:50,513 INFO L168 Benchmark]: TraceAbstraction took 2238.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:50,516 INFO L168 Benchmark]: Witness Printer took 59.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:50,519 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 617.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -150.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 269.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2238.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Witness Printer took 59.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 331 SDtfs, 421 SDslu, 815 SDs, 0 SdLazy, 117 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred 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: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 16446 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...