./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ecf2fc665a67e8bb95ade4d6200b75a6f4637c26 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:14:09,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:14:09,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:14:09,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:14:09,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:14:09,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:14:09,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:14:09,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:14:09,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:14:09,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:14:09,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:14:09,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:14:09,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:14:09,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:14:09,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:14:09,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:14:09,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:14:09,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:14:09,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:14:09,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:14:09,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:14:09,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:14:09,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:14:09,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:14:09,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:14:09,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:14:09,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:14:09,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:14:09,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:14:09,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:14:09,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:14:09,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:14:09,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:14:09,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:14:09,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:14:09,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:14:09,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:14:09,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:14:09,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:14:09,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:14:09,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:14:09,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:14:09,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:14:09,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:14:09,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:14:09,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:14:09,749 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:14:09,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:14:09,749 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:14:09,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:14:09,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:14:09,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:14:09,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:14:09,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:14:09,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:14:09,753 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:14:09,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:14:09,753 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:14:09,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:14:09,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:14:09,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:14:09,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:14:09,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:14:09,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:14:09,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:14:09,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:14:09,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:14:09,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:14:09,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:14:09,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:14:09,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:14:09,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecf2fc665a67e8bb95ade4d6200b75a6f4637c26 [2020-11-29 20:14:10,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:14:10,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:14:10,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:14:10,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:14:10,152 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:14:10,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i [2020-11-29 20:14:10,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/data/954fa4f2b/82fc29dbbfb44da7a88bb8bf99ff31b2/FLAG641fcacaa [2020-11-29 20:14:10,860 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:14:10,861 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i [2020-11-29 20:14:10,884 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/data/954fa4f2b/82fc29dbbfb44da7a88bb8bf99ff31b2/FLAG641fcacaa [2020-11-29 20:14:11,118 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/data/954fa4f2b/82fc29dbbfb44da7a88bb8bf99ff31b2 [2020-11-29 20:14:11,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:14:11,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:14:11,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:14:11,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:14:11,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:14:11,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:14:11" (1/1) ... [2020-11-29 20:14:11,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e40df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11, skipping insertion in model container [2020-11-29 20:14:11,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:14:11" (1/1) ... [2020-11-29 20:14:11,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:14:11,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:14:11,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:14:11,551 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:14:11,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:14:11,709 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:14:11,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11 WrapperNode [2020-11-29 20:14:11,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:14:11,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:14:11,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:14:11,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:14:11,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11" (1/1) ... [2020-11-29 20:14:11,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11" (1/1) ... [2020-11-29 20:14:11,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:14:11,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:14:11,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:14:11,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:14:11,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11" (1/1) ... [2020-11-29 20:14:11,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11" (1/1) ... [2020-11-29 20:14:11,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11" (1/1) ... [2020-11-29 20:14:11,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11" (1/1) ... [2020-11-29 20:14:11,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11" (1/1) ... [2020-11-29 20:14:11,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11" (1/1) ... [2020-11-29 20:14:11,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11" (1/1) ... [2020-11-29 20:14:11,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:14:11,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:14:11,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:14:11,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:14:11,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/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 [2020-11-29 20:14:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:14:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-29 20:14:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:14:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:14:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-29 20:14:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-29 20:14:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-29 20:14:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-29 20:14:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:14:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-29 20:14:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:14:11,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:14:11,933 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-29 20:14:12,536 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:14:12,536 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-29 20:14:12,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:14:12 BoogieIcfgContainer [2020-11-29 20:14:12,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:14:12,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:14:12,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:14:12,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:14:12,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:14:11" (1/3) ... [2020-11-29 20:14:12,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7338514c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:14:12, skipping insertion in model container [2020-11-29 20:14:12,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:14:11" (2/3) ... [2020-11-29 20:14:12,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7338514c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:14:12, skipping insertion in model container [2020-11-29 20:14:12,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:14:12" (3/3) ... [2020-11-29 20:14:12,550 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_tso.oepc.i [2020-11-29 20:14:12,563 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-29 20:14:12,563 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:14:12,568 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:14:12,569 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-29 20:14:12,606 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,606 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,607 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,607 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,607 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,608 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,608 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,609 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,609 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,609 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,610 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,610 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,616 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,617 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,617 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,626 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,626 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,626 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,626 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:14:12,630 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-29 20:14:12,644 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 20:14:12,679 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:14:12,680 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:14:12,680 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:14:12,680 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:14:12,680 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:14:12,680 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:14:12,680 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:14:12,681 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:14:12,699 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-29 20:14:12,701 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 136 flow [2020-11-29 20:14:12,706 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 136 flow [2020-11-29 20:14:12,708 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 136 flow [2020-11-29 20:14:12,755 INFO L129 PetriNetUnfolder]: 3/61 cut-off events. [2020-11-29 20:14:12,756 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-29 20:14:12,759 INFO L80 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-11-29 20:14:12,762 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-29 20:14:14,057 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-29 20:14:15,040 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-11-29 20:14:15,150 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-11-29 20:14:15,206 INFO L131 LiptonReduction]: Checked pairs total: 1732 [2020-11-29 20:14:15,206 INFO L133 LiptonReduction]: Total number of compositions: 67 [2020-11-29 20:14:15,213 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 16 transitions, 42 flow [2020-11-29 20:14:15,227 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-11-29 20:14:15,229 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-29 20:14:15,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:14:15,235 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:14:15,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:14:15,235 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:14:15,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:14:15,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1371543398, now seen corresponding path program 1 times [2020-11-29 20:14:15,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:14:15,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816398712] [2020-11-29 20:14:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:14:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:14:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:14:15,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816398712] [2020-11-29 20:14:15,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:14:15,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 20:14:15,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683409573] [2020-11-29 20:14:15,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:14:15,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:14:15,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:14:15,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:14:15,538 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-11-29 20:14:15,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:14:15,588 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-11-29 20:14:15,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:14:15,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-29 20:14:15,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:14:15,602 INFO L225 Difference]: With dead ends: 72 [2020-11-29 20:14:15,602 INFO L226 Difference]: Without dead ends: 56 [2020-11-29 20:14:15,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:14:15,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-29 20:14:15,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-11-29 20:14:15,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-29 20:14:15,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-11-29 20:14:15,653 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-11-29 20:14:15,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:14:15,654 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-11-29 20:14:15,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:14:15,655 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-11-29 20:14:15,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:14:15,656 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:14:15,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:14:15,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:14:15,657 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:14:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:14:15,660 INFO L82 PathProgramCache]: Analyzing trace with hash 403284336, now seen corresponding path program 1 times [2020-11-29 20:14:15,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:14:15,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603621902] [2020-11-29 20:14:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:14:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:14:15,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:14:15,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603621902] [2020-11-29 20:14:15,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:14:15,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 20:14:15,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264553264] [2020-11-29 20:14:15,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:14:15,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:14:15,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:14:15,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:14:15,747 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 3 states. [2020-11-29 20:14:15,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:14:15,754 INFO L93 Difference]: Finished difference Result 55 states and 111 transitions. [2020-11-29 20:14:15,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:14:15,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-29 20:14:15,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:14:15,756 INFO L225 Difference]: With dead ends: 55 [2020-11-29 20:14:15,756 INFO L226 Difference]: Without dead ends: 55 [2020-11-29 20:14:15,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:14:15,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-29 20:14:15,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-11-29 20:14:15,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-29 20:14:15,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 111 transitions. [2020-11-29 20:14:15,765 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 111 transitions. Word has length 7 [2020-11-29 20:14:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:14:15,765 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 111 transitions. [2020-11-29 20:14:15,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:14:15,766 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 111 transitions. [2020-11-29 20:14:15,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 20:14:15,766 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:14:15,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:14:15,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:14:15,767 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:14:15,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:14:15,768 INFO L82 PathProgramCache]: Analyzing trace with hash -383094824, now seen corresponding path program 1 times [2020-11-29 20:14:15,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:14:15,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462856487] [2020-11-29 20:14:15,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:14:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:14:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:14:15,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462856487] [2020-11-29 20:14:15,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:14:15,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:14:15,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991937585] [2020-11-29 20:14:15,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:14:15,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:14:15,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:14:15,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:14:15,903 INFO L87 Difference]: Start difference. First operand 55 states and 111 transitions. Second operand 4 states. [2020-11-29 20:14:15,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:14:15,966 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2020-11-29 20:14:15,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:14:15,968 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-29 20:14:15,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:14:15,968 INFO L225 Difference]: With dead ends: 56 [2020-11-29 20:14:15,968 INFO L226 Difference]: Without dead ends: 40 [2020-11-29 20:14:15,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:14:15,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-11-29 20:14:15,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-11-29 20:14:15,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-29 20:14:15,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-11-29 20:14:15,974 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 8 [2020-11-29 20:14:15,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:14:15,974 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-11-29 20:14:15,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:14:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-11-29 20:14:15,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 20:14:15,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:14:15,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:14:15,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:14:15,978 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:14:15,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:14:15,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1007823895, now seen corresponding path program 1 times [2020-11-29 20:14:15,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:14:15,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059581294] [2020-11-29 20:14:15,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:14:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:14:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:14:16,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059581294] [2020-11-29 20:14:16,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:14:16,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:14:16,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625546829] [2020-11-29 20:14:16,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:14:16,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:14:16,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:14:16,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:14:16,051 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 3 states. [2020-11-29 20:14:16,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:14:16,073 INFO L93 Difference]: Finished difference Result 51 states and 79 transitions. [2020-11-29 20:14:16,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:14:16,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-29 20:14:16,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:14:16,076 INFO L225 Difference]: With dead ends: 51 [2020-11-29 20:14:16,076 INFO L226 Difference]: Without dead ends: 41 [2020-11-29 20:14:16,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:14:16,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-29 20:14:16,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-11-29 20:14:16,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-29 20:14:16,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 60 transitions. [2020-11-29 20:14:16,081 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 60 transitions. Word has length 9 [2020-11-29 20:14:16,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:14:16,082 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 60 transitions. [2020-11-29 20:14:16,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:14:16,082 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 60 transitions. [2020-11-29 20:14:16,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 20:14:16,082 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:14:16,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:14:16,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:14:16,083 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:14:16,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:14:16,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1633722403, now seen corresponding path program 1 times [2020-11-29 20:14:16,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:14:16,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098847568] [2020-11-29 20:14:16,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:14:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:14:16,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:14:16,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098847568] [2020-11-29 20:14:16,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:14:16,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:14:16,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959312997] [2020-11-29 20:14:16,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:14:16,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:14:16,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:14:16,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:14:16,176 INFO L87 Difference]: Start difference. First operand 39 states and 60 transitions. Second operand 3 states. [2020-11-29 20:14:16,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:14:16,190 INFO L93 Difference]: Finished difference Result 42 states and 57 transitions. [2020-11-29 20:14:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:14:16,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-29 20:14:16,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:14:16,191 INFO L225 Difference]: With dead ends: 42 [2020-11-29 20:14:16,191 INFO L226 Difference]: Without dead ends: 31 [2020-11-29 20:14:16,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:14:16,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-29 20:14:16,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2020-11-29 20:14:16,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 20:14:16,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-11-29 20:14:16,198 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-11-29 20:14:16,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:14:16,198 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-29 20:14:16,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:14:16,198 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-11-29 20:14:16,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:14:16,199 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:14:16,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:14:16,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:14:16,199 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:14:16,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:14:16,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1177733491, now seen corresponding path program 1 times [2020-11-29 20:14:16,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:14:16,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220112702] [2020-11-29 20:14:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:14:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:14:16,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:14:16,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220112702] [2020-11-29 20:14:16,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:14:16,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:14:16,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394944767] [2020-11-29 20:14:16,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:14:16,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:14:16,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:14:16,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:14:16,280 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 5 states. [2020-11-29 20:14:16,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:14:16,305 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2020-11-29 20:14:16,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:14:16,305 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-29 20:14:16,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:14:16,306 INFO L225 Difference]: With dead ends: 25 [2020-11-29 20:14:16,306 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:14:16,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:14:16,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:14:16,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:14:16,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:14:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:14:16,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-29 20:14:16,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:14:16,307 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:14:16,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:14:16,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:14:16,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:14:16,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:14:16,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:14:16 BasicIcfg [2020-11-29 20:14:16,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:14:16,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:14:16,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:14:16,311 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:14:16,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:14:12" (3/4) ... [2020-11-29 20:14:16,314 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:14:16,321 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-29 20:14:16,321 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-29 20:14:16,327 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-29 20:14:16,327 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:14:16,328 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:14:16,328 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:14:16,389 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_db224f26-2353-45a9-8f64-b7e6ce2b21e3/bin/uautomizer/witness.graphml [2020-11-29 20:14:16,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:14:16,397 INFO L168 Benchmark]: Toolchain (without parser) took 5274.96 ms. Allocated memory was 100.7 MB in the beginning and 161.5 MB in the end (delta: 60.8 MB). Free memory was 71.7 MB in the beginning and 120.1 MB in the end (delta: -48.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:14:16,398 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory was 59.4 MB in the beginning and 59.4 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:14:16,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.67 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 58.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:14:16,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.50 ms. Allocated memory is still 100.7 MB. Free memory was 57.9 MB in the beginning and 56.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:14:16,402 INFO L168 Benchmark]: Boogie Preprocessor took 60.65 ms. Allocated memory is still 100.7 MB. Free memory was 56.2 MB in the beginning and 54.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:14:16,404 INFO L168 Benchmark]: RCFGBuilder took 679.18 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 54.8 MB in the beginning and 96.5 MB in the end (delta: -41.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:14:16,405 INFO L168 Benchmark]: TraceAbstraction took 3768.06 ms. Allocated memory was 123.7 MB in the beginning and 161.5 MB in the end (delta: 37.7 MB). Free memory was 95.8 MB in the beginning and 123.3 MB in the end (delta: -27.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:14:16,405 INFO L168 Benchmark]: Witness Printer took 84.66 ms. Allocated memory is still 161.5 MB. Free memory was 123.3 MB in the beginning and 120.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:14:16,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory was 59.4 MB in the beginning and 59.4 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 580.67 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 58.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.50 ms. Allocated memory is still 100.7 MB. Free memory was 57.9 MB in the beginning and 56.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.65 ms. Allocated memory is still 100.7 MB. Free memory was 56.2 MB in the beginning and 54.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 679.18 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 54.8 MB in the beginning and 96.5 MB in the end (delta: -41.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3768.06 ms. Allocated memory was 123.7 MB in the beginning and 161.5 MB in the end (delta: 37.7 MB). Free memory was 95.8 MB in the beginning and 123.3 MB in the end (delta: -27.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Witness Printer took 84.66 ms. Allocated memory is still 161.5 MB. Free memory was 123.3 MB in the beginning and 120.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 536 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 33 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.5s, 67 PlacesBefore, 22 PlacesAfterwards, 63 TransitionsBefore, 16 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 1732 MoverChecksTotal - PositiveResult [Line: 17]: 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 3 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 79 SDtfs, 34 SDslu, 63 SDs, 0 SdLazy, 38 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 861 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...