./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:15:27,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:15:27,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:15:27,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:15:27,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:15:27,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:15:27,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:15:27,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:15:27,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:15:27,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:15:27,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:15:27,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:15:27,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:15:27,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:15:27,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:15:27,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:15:27,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:15:27,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:15:27,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:15:27,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:15:27,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:15:27,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:15:27,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:15:27,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:15:27,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:15:27,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:15:27,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:15:27,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:15:27,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:15:27,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:15:27,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:15:27,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:15:27,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:15:27,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:15:27,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:15:27,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:15:27,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:15:27,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:15:27,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:15:27,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:15:27,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:15:27,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-19 14:15:27,802 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:15:27,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:15:27,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:15:27,804 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:15:27,804 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:15:27,804 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:15:27,804 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:15:27,805 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:15:27,812 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:15:27,812 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:15:27,813 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:15:27,813 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:15:27,814 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:15:27,814 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:15:27,814 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:15:27,814 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:15:27,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:15:27,816 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:15:27,816 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 14:15:27,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:15:27,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:15:27,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:15:27,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:15:27,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:15:27,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:15:27,817 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-19 14:15:27,817 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:15:27,818 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:15:27,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:15:27,820 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:15:27,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:15:27,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:15:27,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:15:27,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:15:27,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:15:27,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:15:27,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:15:27,822 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:15:27,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:15:27,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:15:27,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:15:27,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:15:27,823 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b [2021-11-19 14:15:28,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:15:28,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:15:28,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:15:28,156 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:15:28,157 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:15:28,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/pthread-lit/qw2004-2.i [2021-11-19 14:15:28,258 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/data/a55510c78/6d0afcddab404db8a86dd7b07023854c/FLAG4b9eb2297 [2021-11-19 14:15:28,973 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:15:28,981 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/sv-benchmarks/c/pthread-lit/qw2004-2.i [2021-11-19 14:15:29,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/data/a55510c78/6d0afcddab404db8a86dd7b07023854c/FLAG4b9eb2297 [2021-11-19 14:15:29,214 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/data/a55510c78/6d0afcddab404db8a86dd7b07023854c [2021-11-19 14:15:29,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:15:29,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:15:29,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:15:29,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:15:29,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:15:29,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778ced97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29, skipping insertion in model container [2021-11-19 14:15:29,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:15:29,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:15:29,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2021-11-19 14:15:29,641 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:15:29,650 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:15:29,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2021-11-19 14:15:29,701 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:15:29,746 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:15:29,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29 WrapperNode [2021-11-19 14:15:29,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:15:29,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:15:29,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:15:29,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:15:29,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,805 INFO L137 Inliner]: procedures = 175, calls = 32, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 172 [2021-11-19 14:15:29,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:15:29,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:15:29,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:15:29,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:15:29,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:15:29,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:15:29,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:15:29,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:15:29,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29" (1/1) ... [2021-11-19 14:15:29,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:15:29,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:15:29,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:15:29,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:15:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2021-11-19 14:15:29,941 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2021-11-19 14:15:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 14:15:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-19 14:15:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:15:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:15:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:15:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:15:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-19 14:15:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:15:29,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:15:29,946 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 14:15:30,141 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:15:30,144 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:15:30,405 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:15:30,527 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:15:30,528 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:15:30,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:15:30 BoogieIcfgContainer [2021-11-19 14:15:30,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:15:30,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:15:30,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:15:30,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:15:30,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:15:29" (1/3) ... [2021-11-19 14:15:30,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dca1f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:15:30, skipping insertion in model container [2021-11-19 14:15:30,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:29" (2/3) ... [2021-11-19 14:15:30,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dca1f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:15:30, skipping insertion in model container [2021-11-19 14:15:30,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:15:30" (3/3) ... [2021-11-19 14:15:30,539 INFO L111 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2021-11-19 14:15:30,545 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 14:15:30,545 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:15:30,546 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-19 14:15:30,546 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 14:15:30,599 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,599 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,599 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,600 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,600 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,600 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,600 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,600 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,601 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,601 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,601 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,602 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,602 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,602 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,602 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,603 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,603 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,603 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,603 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,603 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,604 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,604 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,604 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,604 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,605 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,605 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,605 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,605 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,605 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,606 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,606 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,606 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,606 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,607 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,607 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,607 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,607 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,607 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,608 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,608 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,608 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,608 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,609 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,609 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,609 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,609 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,610 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,610 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,610 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,610 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,610 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,611 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,611 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,611 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,612 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,612 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,612 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,612 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,612 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,613 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,613 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,613 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,614 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,614 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,614 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,614 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,615 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~lse~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,615 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~lse~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,615 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~lse~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,615 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,616 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~lse~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,616 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,616 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,616 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,617 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,617 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,617 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,617 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,618 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,618 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,618 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,618 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,619 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,619 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,619 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,620 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,620 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,620 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,620 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,621 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,621 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,621 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,621 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,622 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,622 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,622 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,626 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,626 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,627 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,627 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,627 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,627 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,628 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,628 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,628 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,628 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,628 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~lse~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,629 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,629 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,629 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,629 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,630 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:15:30,631 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-19 14:15:30,714 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:15:30,722 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:15:30,723 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-19 14:15:30,743 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 14:15:30,759 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 159 transitions, 323 flow [2021-11-19 14:15:30,762 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 159 transitions, 323 flow [2021-11-19 14:15:30,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 159 transitions, 323 flow [2021-11-19 14:15:30,882 INFO L129 PetriNetUnfolder]: 6/158 cut-off events. [2021-11-19 14:15:30,882 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 14:15:30,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 158 events. 6/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 204 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2021-11-19 14:15:30,900 INFO L116 LiptonReduction]: Number of co-enabled transitions 5964 [2021-11-19 14:15:35,088 INFO L131 LiptonReduction]: Checked pairs total: 9720 [2021-11-19 14:15:35,089 INFO L133 LiptonReduction]: Total number of compositions: 207 [2021-11-19 14:15:35,102 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 36 transitions, 77 flow [2021-11-19 14:15:35,141 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 213 states, 137 states have (on average 3.0364963503649633) internal successors, (416), 212 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 137 states have (on average 3.0364963503649633) internal successors, (416), 212 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:35,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-11-19 14:15:35,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:35,155 INFO L514 BasicCegarLoop]: trace histogram [1] [2021-11-19 14:15:35,157 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-19 14:15:35,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash 719, now seen corresponding path program 1 times [2021-11-19 14:15:35,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:15:35,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210527048] [2021-11-19 14:15:35,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:35,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:15:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:35,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:35,295 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:15:35,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210527048] [2021-11-19 14:15:35,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210527048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:35,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:35,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-11-19 14:15:35,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073447879] [2021-11-19 14:15:35,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:35,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:15:35,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:15:35,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:15:35,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:15:35,332 INFO L87 Difference]: Start difference. First operand has 213 states, 137 states have (on average 3.0364963503649633) internal successors, (416), 212 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:35,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:35,380 INFO L93 Difference]: Finished difference Result 64 states and 123 transitions. [2021-11-19 14:15:35,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:15:35,383 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2021-11-19 14:15:35,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:35,393 INFO L225 Difference]: With dead ends: 64 [2021-11-19 14:15:35,393 INFO L226 Difference]: Without dead ends: 62 [2021-11-19 14:15:35,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:15:35,398 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:35,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:15:35,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-19 14:15:35,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-11-19 14:15:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 59 states have (on average 2.016949152542373) internal successors, (119), 61 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:35,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 119 transitions. [2021-11-19 14:15:35,450 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 119 transitions. Word has length 1 [2021-11-19 14:15:35,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:35,451 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 119 transitions. [2021-11-19 14:15:35,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:35,451 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 119 transitions. [2021-11-19 14:15:35,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 14:15:35,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:35,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 14:15:35,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:15:35,454 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-19 14:15:35,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:35,458 INFO L85 PathProgramCache]: Analyzing trace with hash 686812265, now seen corresponding path program 1 times [2021-11-19 14:15:35,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:15:35,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057049794] [2021-11-19 14:15:35,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:35,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:15:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:35,618 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:15:35,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057049794] [2021-11-19 14:15:35,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057049794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:35,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:35,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:15:35,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018391161] [2021-11-19 14:15:35,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:35,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:15:35,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:15:35,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:15:35,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:35,624 INFO L87 Difference]: Start difference. First operand 62 states and 119 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:35,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:35,684 INFO L93 Difference]: Finished difference Result 62 states and 118 transitions. [2021-11-19 14:15:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:15:35,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-19 14:15:35,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:35,689 INFO L225 Difference]: With dead ends: 62 [2021-11-19 14:15:35,690 INFO L226 Difference]: Without dead ends: 62 [2021-11-19 14:15:35,693 INFO L932 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 [2021-11-19 14:15:35,696 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:35,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:15:35,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-19 14:15:35,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-11-19 14:15:35,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 59 states have (on average 2.0) internal successors, (118), 61 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:35,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 118 transitions. [2021-11-19 14:15:35,712 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 118 transitions. Word has length 5 [2021-11-19 14:15:35,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:35,712 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 118 transitions. [2021-11-19 14:15:35,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:35,713 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 118 transitions. [2021-11-19 14:15:35,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 14:15:35,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:35,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 14:15:35,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 14:15:35,714 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-19 14:15:35,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:35,717 INFO L85 PathProgramCache]: Analyzing trace with hash -183853631, now seen corresponding path program 1 times [2021-11-19 14:15:35,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:15:35,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787122525] [2021-11-19 14:15:35,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:35,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:15:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:35,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:35,816 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:15:35,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787122525] [2021-11-19 14:15:35,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787122525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:35,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:35,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 14:15:35,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701768880] [2021-11-19 14:15:35,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:35,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:15:35,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:15:35,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:15:35,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:35,819 INFO L87 Difference]: Start difference. First operand 62 states and 118 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:35,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:35,867 INFO L93 Difference]: Finished difference Result 83 states and 155 transitions. [2021-11-19 14:15:35,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:15:35,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 14:15:35,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:35,868 INFO L225 Difference]: With dead ends: 83 [2021-11-19 14:15:35,869 INFO L226 Difference]: Without dead ends: 82 [2021-11-19 14:15:35,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:35,870 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:35,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:15:35,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-19 14:15:35,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 67. [2021-11-19 14:15:35,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 64 states have (on average 1.96875) internal successors, (126), 66 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:35,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 126 transitions. [2021-11-19 14:15:35,886 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 126 transitions. Word has length 6 [2021-11-19 14:15:35,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:35,886 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 126 transitions. [2021-11-19 14:15:35,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:35,887 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 126 transitions. [2021-11-19 14:15:35,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 14:15:35,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:35,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:15:35,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 14:15:35,888 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-19 14:15:35,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:35,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1399110182, now seen corresponding path program 1 times [2021-11-19 14:15:35,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:15:35,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021881678] [2021-11-19 14:15:35,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:35,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:15:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:35,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:35,965 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:15:35,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021881678] [2021-11-19 14:15:35,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021881678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:35,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:35,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:15:35,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726966254] [2021-11-19 14:15:35,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:35,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:15:35,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:15:35,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:15:35,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:35,980 INFO L87 Difference]: Start difference. First operand 67 states and 126 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:36,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:36,021 INFO L93 Difference]: Finished difference Result 66 states and 120 transitions. [2021-11-19 14:15:36,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:15:36,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 14:15:36,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:36,023 INFO L225 Difference]: With dead ends: 66 [2021-11-19 14:15:36,024 INFO L226 Difference]: Without dead ends: 61 [2021-11-19 14:15:36,025 INFO L932 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 [2021-11-19 14:15:36,026 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:36,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 2 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:15:36,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-19 14:15:36,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-19 14:15:36,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 57 states have (on average 1.9473684210526316) internal successors, (111), 60 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:36,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 111 transitions. [2021-11-19 14:15:36,043 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 111 transitions. Word has length 7 [2021-11-19 14:15:36,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:36,047 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 111 transitions. [2021-11-19 14:15:36,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:36,047 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 111 transitions. [2021-11-19 14:15:36,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 14:15:36,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:36,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:15:36,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 14:15:36,049 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-19 14:15:36,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:36,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1404095031, now seen corresponding path program 1 times [2021-11-19 14:15:36,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:15:36,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964612153] [2021-11-19 14:15:36,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:36,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:15:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:36,119 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:15:36,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964612153] [2021-11-19 14:15:36,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964612153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:36,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:36,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:15:36,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512795390] [2021-11-19 14:15:36,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:36,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:15:36,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:15:36,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:15:36,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:36,122 INFO L87 Difference]: Start difference. First operand 61 states and 111 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:36,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:36,174 INFO L93 Difference]: Finished difference Result 57 states and 99 transitions. [2021-11-19 14:15:36,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:15:36,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 14:15:36,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:36,176 INFO L225 Difference]: With dead ends: 57 [2021-11-19 14:15:36,176 INFO L226 Difference]: Without dead ends: 42 [2021-11-19 14:15:36,177 INFO L932 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 [2021-11-19 14:15:36,178 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:36,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:15:36,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-19 14:15:36,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-11-19 14:15:36,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:36,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 65 transitions. [2021-11-19 14:15:36,194 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 65 transitions. Word has length 7 [2021-11-19 14:15:36,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:36,194 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 65 transitions. [2021-11-19 14:15:36,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:36,199 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2021-11-19 14:15:36,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 14:15:36,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:36,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:15:36,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 14:15:36,201 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-19 14:15:36,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:36,202 INFO L85 PathProgramCache]: Analyzing trace with hash -962552564, now seen corresponding path program 1 times [2021-11-19 14:15:36,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:15:36,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488157075] [2021-11-19 14:15:36,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:36,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:15:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:36,282 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:15:36,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488157075] [2021-11-19 14:15:36,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488157075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:36,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:36,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 14:15:36,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037651225] [2021-11-19 14:15:36,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:36,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:15:36,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:15:36,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:15:36,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:15:36,285 INFO L87 Difference]: Start difference. First operand 42 states and 65 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:36,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:36,343 INFO L93 Difference]: Finished difference Result 45 states and 68 transitions. [2021-11-19 14:15:36,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:15:36,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-19 14:15:36,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:36,348 INFO L225 Difference]: With dead ends: 45 [2021-11-19 14:15:36,348 INFO L226 Difference]: Without dead ends: 38 [2021-11-19 14:15:36,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:15:36,355 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 15 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:36,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 2 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:15:36,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-19 14:15:36,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-19 14:15:36,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 37 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 57 transitions. [2021-11-19 14:15:36,361 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 57 transitions. Word has length 9 [2021-11-19 14:15:36,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:36,361 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 57 transitions. [2021-11-19 14:15:36,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:15:36,362 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 57 transitions. [2021-11-19 14:15:36,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 14:15:36,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:36,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:15:36,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 14:15:36,363 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-19 14:15:36,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:36,364 INFO L85 PathProgramCache]: Analyzing trace with hash -868478806, now seen corresponding path program 1 times [2021-11-19 14:15:36,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:15:36,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224479968] [2021-11-19 14:15:36,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:36,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:15:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:15:36,383 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:15:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:15:36,433 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:15:36,434 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:15:36,435 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2021-11-19 14:15:36,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2021-11-19 14:15:36,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2021-11-19 14:15:36,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2021-11-19 14:15:36,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2021-11-19 14:15:36,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2021-11-19 14:15:36,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2021-11-19 14:15:36,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2021-11-19 14:15:36,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2021-11-19 14:15:36,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2021-11-19 14:15:36,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2021-11-19 14:15:36,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2021-11-19 14:15:36,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2021-11-19 14:15:36,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2021-11-19 14:15:36,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2021-11-19 14:15:36,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2021-11-19 14:15:36,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2021-11-19 14:15:36,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2021-11-19 14:15:36,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2021-11-19 14:15:36,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2021-11-19 14:15:36,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (6 of 27 remaining) [2021-11-19 14:15:36,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2021-11-19 14:15:36,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2021-11-19 14:15:36,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2021-11-19 14:15:36,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2021-11-19 14:15:36,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2021-11-19 14:15:36,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2021-11-19 14:15:36,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 14:15:36,448 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:15:36,455 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 14:15:36,455 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:15:36,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:15:36 BasicIcfg [2021-11-19 14:15:36,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:15:36,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:15:36,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:15:36,504 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:15:36,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:15:30" (3/4) ... [2021-11-19 14:15:36,507 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:15:36,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:15:36,509 INFO L158 Benchmark]: Toolchain (without parser) took 7288.03ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 59.4MB in the beginning and 89.6MB in the end (delta: -30.2MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2021-11-19 14:15:36,509 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:15:36,509 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.72ms. Allocated memory was 96.5MB in the beginning and 121.6MB in the end (delta: 25.2MB). Free memory was 59.4MB in the beginning and 87.0MB in the end (delta: -27.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:15:36,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.04ms. Allocated memory is still 121.6MB. Free memory was 87.0MB in the beginning and 84.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:15:36,510 INFO L158 Benchmark]: Boogie Preprocessor took 30.62ms. Allocated memory is still 121.6MB. Free memory was 84.2MB in the beginning and 82.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:15:36,511 INFO L158 Benchmark]: RCFGBuilder took 692.37ms. Allocated memory is still 121.6MB. Free memory was 82.8MB in the beginning and 64.7MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-19 14:15:36,511 INFO L158 Benchmark]: TraceAbstraction took 5971.59ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 64.5MB in the beginning and 90.6MB in the end (delta: -26.1MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2021-11-19 14:15:36,512 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 146.8MB. Free memory was 90.6MB in the beginning and 89.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:15:36,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 524.72ms. Allocated memory was 96.5MB in the beginning and 121.6MB in the end (delta: 25.2MB). Free memory was 59.4MB in the beginning and 87.0MB in the end (delta: -27.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.04ms. Allocated memory is still 121.6MB. Free memory was 87.0MB in the beginning and 84.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.62ms. Allocated memory is still 121.6MB. Free memory was 84.2MB in the beginning and 82.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 692.37ms. Allocated memory is still 121.6MB. Free memory was 82.8MB in the beginning and 64.7MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5971.59ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 64.5MB in the beginning and 90.6MB in the end (delta: -26.1MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 146.8MB. Free memory was 90.6MB in the beginning and 89.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 157 PlacesBefore, 38 PlacesAfterwards, 159 TransitionsBefore, 36 TransitionsAfterwards, 5964 CoEnabledTransitionPairs, 8 FixpointIterations, 54 TrivialSequentialCompositions, 130 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 4 ChoiceCompositions, 207 TotalNumberOfCompositions, 9720 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7500, positive: 7308, positive conditional: 0, positive unconditional: 7308, negative: 192, negative conditional: 0, negative unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4523, positive: 4459, positive conditional: 0, positive unconditional: 4459, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4523, positive: 4311, positive conditional: 0, positive unconditional: 4311, negative: 212, negative conditional: 0, negative unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 212, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 333, positive: 174, positive conditional: 0, positive unconditional: 174, negative: 159, negative conditional: 0, negative unconditional: 159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7500, positive: 2849, positive conditional: 0, positive unconditional: 2849, negative: 128, negative conditional: 0, negative unconditional: 128, unknown: 4523, unknown conditional: 0, unknown unconditional: 4523] , Statistics on independence cache: Total cache size (in pairs): 159, Positive cache size: 144, Positive conditional cache size: 0, Positive unconditional cache size: 144, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 751]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int stoppingFlag; [L698] 0 volatile int pendingIo; [L699] 0 volatile int stoppingEvent; [L700] 0 volatile int stopped; [L755] 0 pthread_t t; [L756] 0 pendingIo = 1 [L757] 0 stoppingFlag = 0 [L758] 0 stoppingEvent = 0 [L759] 0 stopped = 0 [L760] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=0, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L761] CALL 0 BCSP_PnpAdd(0) [L734] 0 int status; [L735] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 int lsf = stoppingFlag; VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L744] 1 stoppingFlag = 1 [L746] CALL 1 BCSP_IoDecrement() [L725] 1 int pending; [L726] CALL, EXPR 1 dec() [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; [L722] 1 return tmp; [L726] RET, EXPR 1 dec() [L726] 1 pending = dec() [L727] COND TRUE 1 pending == 0 [L729] 1 stoppingEvent = 1 [L746] RET 1 BCSP_IoDecrement() [L748] 1 int lse = stoppingEvent; [L750] CALL 1 assume_abort_if_not(lse) [L686] COND FALSE 1 !(!cond) [L750] RET 1 assume_abort_if_not(lse) [L751] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=0, stopped=1, stopped = 1=49, stoppingEvent=1, stoppingFlag=1] [L705] COND FALSE 0 !(\read(lsf)) [L709] 0 int lp = pendingIo; VAL [lp=0, lsf=0, pendingIo=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L712] 0 pendingIo = lp + 1 [L715] 0 return 0; [L735] RET, EXPR 0 BCSP_IoIncrement() [L735] 0 status = BCSP_IoIncrement() [L736] COND TRUE 0 status == 0 [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=1, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L751] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=1, stopped=1, stopped = 1=49, stoppingEvent=1, stoppingFlag=1] Now there is a data race on ~stopped~0 between C: !stopped [737] and C: stopped = 1 [751] - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 737]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 196 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 236 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 12 mSDtfsCounter, 236 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 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 could not prove your program: unable to determine feasibility of some traces [2021-11-19 14:15:36,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ebde923-5a67-41cd-8719-435a813a5fec/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE