./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-array-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-array-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/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 98082e1bae85d3082e805f8ac23c0d951de3a5ba ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:46:12,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:46:12,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:46:12,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:46:12,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:46:12,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:46:12,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:46:12,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:46:12,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:46:12,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:46:12,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:46:12,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:46:12,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:46:12,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:46:12,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:46:12,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:46:12,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:46:12,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:46:12,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:46:12,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:46:12,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:46:12,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:46:12,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:46:12,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:46:12,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:46:12,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:46:12,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:46:12,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:46:12,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:46:12,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:46:12,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:46:12,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:46:12,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:46:12,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:46:12,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:46:12,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:46:12,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:46:12,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:46:12,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:46:12,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:46:12,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:46:12,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:46:12,625 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:46:12,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:46:12,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:46:12,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:46:12,626 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:46:12,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:46:12,627 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:46:12,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:46:12,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:46:12,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:46:12,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:46:12,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:46:12,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:46:12,628 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:46:12,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:46:12,628 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:46:12,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:46:12,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:46:12,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:46:12,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:46:12,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:46:12,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:46:12,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:46:12,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:46:12,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:46:12,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:46:12,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:46:12,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:46:12,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/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 -> 98082e1bae85d3082e805f8ac23c0d951de3a5ba [2019-11-25 08:46:12,811 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:46:12,821 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:46:12,824 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:46:12,825 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:46:12,826 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:46:12,827 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/../../sv-benchmarks/c/pthread-nondet/nondet-array-2.i [2019-11-25 08:46:12,885 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/data/7e26f584d/ac1408f6379e42eb99185b955ac1f938/FLAG58339bbb7 [2019-11-25 08:46:13,307 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:46:13,308 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/sv-benchmarks/c/pthread-nondet/nondet-array-2.i [2019-11-25 08:46:13,320 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/data/7e26f584d/ac1408f6379e42eb99185b955ac1f938/FLAG58339bbb7 [2019-11-25 08:46:13,669 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/data/7e26f584d/ac1408f6379e42eb99185b955ac1f938 [2019-11-25 08:46:13,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:46:13,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:46:13,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:13,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:46:13,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:46:13,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:13" (1/1) ... [2019-11-25 08:46:13,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b083bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:13, skipping insertion in model container [2019-11-25 08:46:13,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:13" (1/1) ... [2019-11-25 08:46:13,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:46:13,739 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:46:14,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:14,125 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:46:14,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:14,274 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:46:14,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14 WrapperNode [2019-11-25 08:46:14,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:14,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:14,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:46:14,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:46:14,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14" (1/1) ... [2019-11-25 08:46:14,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14" (1/1) ... [2019-11-25 08:46:14,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:14,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:46:14,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:46:14,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:46:14,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14" (1/1) ... [2019-11-25 08:46:14,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14" (1/1) ... [2019-11-25 08:46:14,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14" (1/1) ... [2019-11-25 08:46:14,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14" (1/1) ... [2019-11-25 08:46:14,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14" (1/1) ... [2019-11-25 08:46:14,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14" (1/1) ... [2019-11-25 08:46:14,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14" (1/1) ... [2019-11-25 08:46:14,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:46:14,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:46:14,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:46:14,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:46:14,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:46:14,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-25 08:46:14,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:46:14,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:46:14,425 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2019-11-25 08:46:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2019-11-25 08:46:14,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:46:14,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:46:14,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:46:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:46:14,428 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:46:14,857 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:46:14,857 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 08:46:14,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:14 BoogieIcfgContainer [2019-11-25 08:46:14,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:46:14,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:46:14,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:46:14,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:46:14,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:46:13" (1/3) ... [2019-11-25 08:46:14,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a0796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:46:14, skipping insertion in model container [2019-11-25 08:46:14,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:14" (2/3) ... [2019-11-25 08:46:14,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a0796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:46:14, skipping insertion in model container [2019-11-25 08:46:14,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:14" (3/3) ... [2019-11-25 08:46:14,865 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-array-2.i [2019-11-25 08:46:14,908 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,908 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,909 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,909 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,909 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,909 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,910 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,911 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,911 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,911 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,911 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,911 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,912 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,912 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,912 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,913 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,913 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,913 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,913 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,913 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,914 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:46:14,933 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:46:14,933 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:46:14,940 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:46:14,950 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:46:14,970 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:46:14,970 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:46:14,970 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:46:14,971 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:46:14,971 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:46:14,971 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:46:14,971 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:46:14,971 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:46:14,985 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 79 transitions [2019-11-25 08:46:15,828 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 10826 states. [2019-11-25 08:46:15,831 INFO L276 IsEmpty]: Start isEmpty. Operand 10826 states. [2019-11-25 08:46:15,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:46:15,842 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:15,843 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:15,843 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:15,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:15,849 INFO L82 PathProgramCache]: Analyzing trace with hash 197122563, now seen corresponding path program 1 times [2019-11-25 08:46:15,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:15,860 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859297046] [2019-11-25 08:46:15,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:16,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:16,029 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859297046] [2019-11-25 08:46:16,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:16,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:46:16,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006635991] [2019-11-25 08:46:16,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:46:16,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:16,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:46:16,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:46:16,052 INFO L87 Difference]: Start difference. First operand 10826 states. Second operand 2 states. [2019-11-25 08:46:16,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:16,206 INFO L93 Difference]: Finished difference Result 10826 states and 34276 transitions. [2019-11-25 08:46:16,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:46:16,207 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2019-11-25 08:46:16,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:16,319 INFO L225 Difference]: With dead ends: 10826 [2019-11-25 08:46:16,319 INFO L226 Difference]: Without dead ends: 8334 [2019-11-25 08:46:16,321 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:46:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8334 states. [2019-11-25 08:46:16,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8334 to 8334. [2019-11-25 08:46:16,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8334 states. [2019-11-25 08:46:16,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 26294 transitions. [2019-11-25 08:46:16,845 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 26294 transitions. Word has length 29 [2019-11-25 08:46:16,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:16,846 INFO L462 AbstractCegarLoop]: Abstraction has 8334 states and 26294 transitions. [2019-11-25 08:46:16,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:46:16,846 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 26294 transitions. [2019-11-25 08:46:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:46:16,851 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:16,851 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:16,851 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:16,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:16,852 INFO L82 PathProgramCache]: Analyzing trace with hash 916313188, now seen corresponding path program 1 times [2019-11-25 08:46:16,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:16,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347716878] [2019-11-25 08:46:16,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:16,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:16,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347716878] [2019-11-25 08:46:17,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:17,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:46:17,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499577864] [2019-11-25 08:46:17,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:46:17,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:17,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:46:17,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:46:17,002 INFO L87 Difference]: Start difference. First operand 8334 states and 26294 transitions. Second operand 5 states. [2019-11-25 08:46:17,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:17,129 INFO L93 Difference]: Finished difference Result 10735 states and 33840 transitions. [2019-11-25 08:46:17,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:46:17,130 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-25 08:46:17,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:17,204 INFO L225 Difference]: With dead ends: 10735 [2019-11-25 08:46:17,204 INFO L226 Difference]: Without dead ends: 9363 [2019-11-25 08:46:17,205 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:46:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9363 states. [2019-11-25 08:46:17,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9363 to 8677. [2019-11-25 08:46:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8677 states. [2019-11-25 08:46:17,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8677 states to 8677 states and 27372 transitions. [2019-11-25 08:46:17,474 INFO L78 Accepts]: Start accepts. Automaton has 8677 states and 27372 transitions. Word has length 29 [2019-11-25 08:46:17,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:17,474 INFO L462 AbstractCegarLoop]: Abstraction has 8677 states and 27372 transitions. [2019-11-25 08:46:17,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:46:17,475 INFO L276 IsEmpty]: Start isEmpty. Operand 8677 states and 27372 transitions. [2019-11-25 08:46:17,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-25 08:46:17,478 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:17,478 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:17,478 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:17,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:17,479 INFO L82 PathProgramCache]: Analyzing trace with hash -204068681, now seen corresponding path program 1 times [2019-11-25 08:46:17,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:17,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092606713] [2019-11-25 08:46:17,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:17,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:17,592 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092606713] [2019-11-25 08:46:17,592 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890814377] [2019-11-25 08:46:17,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:46:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:17,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-25 08:46:17,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:46:17,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:46:17,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-25 08:46:17,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2019-11-25 08:46:17,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254544081] [2019-11-25 08:46:17,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:46:17,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:17,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:46:17,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:46:17,739 INFO L87 Difference]: Start difference. First operand 8677 states and 27372 transitions. Second operand 4 states. [2019-11-25 08:46:17,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:17,829 INFO L93 Difference]: Finished difference Result 6020 states and 17029 transitions. [2019-11-25 08:46:17,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:46:17,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-11-25 08:46:17,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:17,845 INFO L225 Difference]: With dead ends: 6020 [2019-11-25 08:46:17,846 INFO L226 Difference]: Without dead ends: 6020 [2019-11-25 08:46:17,846 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:46:17,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2019-11-25 08:46:17,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 5262. [2019-11-25 08:46:17,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5262 states. [2019-11-25 08:46:18,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5262 states to 5262 states and 15165 transitions. [2019-11-25 08:46:18,017 INFO L78 Accepts]: Start accepts. Automaton has 5262 states and 15165 transitions. Word has length 36 [2019-11-25 08:46:18,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:18,017 INFO L462 AbstractCegarLoop]: Abstraction has 5262 states and 15165 transitions. [2019-11-25 08:46:18,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:46:18,018 INFO L276 IsEmpty]: Start isEmpty. Operand 5262 states and 15165 transitions. [2019-11-25 08:46:18,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-11-25 08:46:18,027 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:18,028 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:18,230 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:46:18,231 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:18,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:18,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1176794984, now seen corresponding path program 1 times [2019-11-25 08:46:18,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:18,232 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691334697] [2019-11-25 08:46:18,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:18,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:18,506 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691334697] [2019-11-25 08:46:18,507 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812255169] [2019-11-25 08:46:18,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:46:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:18,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:46:18,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:46:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:46:18,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:46:18,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6] total 18 [2019-11-25 08:46:18,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698116517] [2019-11-25 08:46:18,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-25 08:46:18,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:18,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-25 08:46:18,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2019-11-25 08:46:18,722 INFO L87 Difference]: Start difference. First operand 5262 states and 15165 transitions. Second operand 18 states. [2019-11-25 08:46:19,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:19,038 INFO L93 Difference]: Finished difference Result 5993 states and 16981 transitions. [2019-11-25 08:46:19,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:46:19,039 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 55 [2019-11-25 08:46:19,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:19,056 INFO L225 Difference]: With dead ends: 5993 [2019-11-25 08:46:19,056 INFO L226 Difference]: Without dead ends: 5993 [2019-11-25 08:46:19,056 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2019-11-25 08:46:19,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2019-11-25 08:46:19,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 5250. [2019-11-25 08:46:19,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5250 states. [2019-11-25 08:46:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5250 states to 5250 states and 15137 transitions. [2019-11-25 08:46:19,349 INFO L78 Accepts]: Start accepts. Automaton has 5250 states and 15137 transitions. Word has length 55 [2019-11-25 08:46:19,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:19,350 INFO L462 AbstractCegarLoop]: Abstraction has 5250 states and 15137 transitions. [2019-11-25 08:46:19,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-25 08:46:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5250 states and 15137 transitions. [2019-11-25 08:46:19,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-25 08:46:19,360 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:19,360 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:19,566 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:46:19,566 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:19,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:19,566 INFO L82 PathProgramCache]: Analyzing trace with hash -960128164, now seen corresponding path program 1 times [2019-11-25 08:46:19,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:19,567 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393385363] [2019-11-25 08:46:19,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:19,845 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:19,845 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393385363] [2019-11-25 08:46:19,847 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078765142] [2019-11-25 08:46:19,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:46:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:19,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-25 08:46:19,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:46:20,108 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:46:20,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:46:20,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8] total 22 [2019-11-25 08:46:20,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513587009] [2019-11-25 08:46:20,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-25 08:46:20,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:20,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-25 08:46:20,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-11-25 08:46:20,116 INFO L87 Difference]: Start difference. First operand 5250 states and 15137 transitions. Second operand 22 states. [2019-11-25 08:46:20,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:20,452 INFO L93 Difference]: Finished difference Result 5813 states and 16519 transitions. [2019-11-25 08:46:20,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-25 08:46:20,453 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 62 [2019-11-25 08:46:20,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:20,469 INFO L225 Difference]: With dead ends: 5813 [2019-11-25 08:46:20,469 INFO L226 Difference]: Without dead ends: 5813 [2019-11-25 08:46:20,470 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=549, Unknown=0, NotChecked=0, Total=702 [2019-11-25 08:46:20,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5813 states. [2019-11-25 08:46:20,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5813 to 5178. [2019-11-25 08:46:20,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5178 states. [2019-11-25 08:46:20,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5178 states to 5178 states and 14909 transitions. [2019-11-25 08:46:20,602 INFO L78 Accepts]: Start accepts. Automaton has 5178 states and 14909 transitions. Word has length 62 [2019-11-25 08:46:20,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:20,603 INFO L462 AbstractCegarLoop]: Abstraction has 5178 states and 14909 transitions. [2019-11-25 08:46:20,603 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-25 08:46:20,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5178 states and 14909 transitions. [2019-11-25 08:46:20,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-11-25 08:46:20,616 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:20,623 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:20,826 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:46:20,826 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:20,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:20,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1663676489, now seen corresponding path program 1 times [2019-11-25 08:46:20,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:20,827 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056216832] [2019-11-25 08:46:20,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:21,131 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:21,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056216832] [2019-11-25 08:46:21,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35991208] [2019-11-25 08:46:21,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:46:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:21,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-25 08:46:21,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:46:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:46:21,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:46:21,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10] total 26 [2019-11-25 08:46:21,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357948479] [2019-11-25 08:46:21,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-25 08:46:21,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:21,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-25 08:46:21,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2019-11-25 08:46:21,397 INFO L87 Difference]: Start difference. First operand 5178 states and 14909 transitions. Second operand 26 states. [2019-11-25 08:46:21,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:21,657 INFO L93 Difference]: Finished difference Result 1395 states and 4334 transitions. [2019-11-25 08:46:21,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-25 08:46:21,657 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 69 [2019-11-25 08:46:21,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:21,658 INFO L225 Difference]: With dead ends: 1395 [2019-11-25 08:46:21,658 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:46:21,659 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=827, Unknown=0, NotChecked=0, Total=1056 [2019-11-25 08:46:21,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:46:21,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:46:21,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:46:21,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:46:21,660 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2019-11-25 08:46:21,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:21,660 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:46:21,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-25 08:46:21,661 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:46:21,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:46:21,863 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:46:21,868 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:46:21,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:46:21 BasicIcfg [2019-11-25 08:46:21,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:46:21,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:46:21,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:46:21,870 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:46:21,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:14" (3/4) ... [2019-11-25 08:46:21,875 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:46:21,892 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr [2019-11-25 08:46:21,898 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-25 08:46:21,898 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:46:21,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 08:46:21,948 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_28dec7c0-ad2d-4c89-9b86-fcb37c0ad033/bin/uautomizer/witness.graphml [2019-11-25 08:46:21,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:46:21,950 INFO L168 Benchmark]: Toolchain (without parser) took 8277.17 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 325.1 MB). Free memory was 939.4 MB in the beginning and 885.2 MB in the end (delta: 54.2 MB). Peak memory consumption was 379.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:21,951 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:46:21,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:21,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:46:21,954 INFO L168 Benchmark]: Boogie Preprocessor took 28.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:46:21,954 INFO L168 Benchmark]: RCFGBuilder took 495.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:21,955 INFO L168 Benchmark]: TraceAbstraction took 7010.50 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 1.1 GB in the beginning and 898.2 MB in the end (delta: 171.9 MB). Peak memory consumption was 359.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:21,955 INFO L168 Benchmark]: Witness Printer took 78.54 ms. Allocated memory is still 1.4 GB. Free memory was 898.2 MB in the beginning and 885.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:21,957 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 601.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.21 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 28.99 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 495.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7010.50 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 1.1 GB in the beginning and 898.2 MB in the end (delta: 171.9 MB). Peak memory consumption was 359.6 MB. Max. memory is 11.5 GB. * Witness Printer took 78.54 ms. Allocated memory is still 1.4 GB. Free memory was 898.2 MB in the beginning and 885.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 675]: 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 5 procedures, 78 locations, 1 error locations. Result: SAFE, OverallTime: 6.9s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 453 SDtfs, 1045 SDslu, 1770 SDs, 0 SdLazy, 485 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 296 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10826occurred 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: 1.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 2822 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 492 ConstructedInterpolants, 0 QuantifiedInterpolants, 105213 SizeOfPredicates, 20 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 7/82 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...