./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf355d39fb9f7488100d8b96d228c81b4f979ef4a38624d93e12fa6dff1a8590 .................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:35:41,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:35:41,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:35:41,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:35:41,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:35:41,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:35:41,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:35:41,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:35:41,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:35:41,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:35:41,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:35:41,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:35:41,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:35:41,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:35:41,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:35:41,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:35:41,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:35:41,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:35:41,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:35:41,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:35:41,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:35:41,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:35:41,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:35:41,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:35:41,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:35:41,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:35:41,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:35:41,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:35:41,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:35:41,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:35:41,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:35:41,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:35:41,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:35:41,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:35:41,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:35:41,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:35:41,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:35:41,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:35:41,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:35:41,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:35:41,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:35:41,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:35:41,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:35:41,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:35:41,807 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:35:41,808 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:35:41,808 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:35:41,809 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:35:41,809 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:35:41,810 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:35:41,810 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:35:41,811 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:35:41,811 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:35:41,811 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:35:41,812 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:35:41,812 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:35:41,813 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:35:41,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:35:41,814 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:35:41,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:35:41,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:35:41,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:35:41,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:35:41,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:35:41,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:35:41,817 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:35:41,817 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:35:41,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:35:41,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:35:41,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:35:41,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:35:41,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:35:41,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:35:41,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:35:41,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:35:41,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:35:41,820 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:35:41,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:35:41,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:35:41,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:35:41,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:35:41,821 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_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf355d39fb9f7488100d8b96d228c81b4f979ef4a38624d93e12fa6dff1a8590 [2021-10-29 04:35:42,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:35:42,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:35:42,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:35:42,100 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:35:42,101 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:35:42,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2021-10-29 04:35:42,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/data/f16beaf6b/03bcab7ea30d4ec0a7f46a66681f3224/FLAGe0579efff [2021-10-29 04:35:42,877 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:35:42,886 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2021-10-29 04:35:42,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/data/f16beaf6b/03bcab7ea30d4ec0a7f46a66681f3224/FLAGe0579efff [2021-10-29 04:35:43,104 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/data/f16beaf6b/03bcab7ea30d4ec0a7f46a66681f3224 [2021-10-29 04:35:43,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:35:43,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:35:43,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:35:43,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:35:43,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:35:43,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3915d361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43, skipping insertion in model container [2021-10-29 04:35:43,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:35:43,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:35:43,371 WARN L228 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_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i[841,854] [2021-10-29 04:35:43,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:35:43,541 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:35:43,554 WARN L228 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_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i[841,854] [2021-10-29 04:35:43,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:35:43,659 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:35:43,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43 WrapperNode [2021-10-29 04:35:43,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:35:43,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:35:43,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:35:43,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:35:43,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:35:43,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:35:43,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:35:43,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:35:43,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:35:43,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:35:43,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:35:43,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:35:43,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43" (1/1) ... [2021-10-29 04:35:43,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:35:43,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:35:43,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:35:43,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:35:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:35:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:35:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-29 04:35:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:35:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-29 04:35:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-29 04:35:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:35:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:35:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:35:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:35:43,850 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 04:35:44,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:35:44,216 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 04:35:44,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:35:44 BoogieIcfgContainer [2021-10-29 04:35:44,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:35:44,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:35:44,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:35:44,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:35:44,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:35:43" (1/3) ... [2021-10-29 04:35:44,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7624242e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:35:44, skipping insertion in model container [2021-10-29 04:35:44,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:43" (2/3) ... [2021-10-29 04:35:44,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7624242e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:35:44, skipping insertion in model container [2021-10-29 04:35:44,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:35:44" (3/3) ... [2021-10-29 04:35:44,255 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2021-10-29 04:35:44,261 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 04:35:44,261 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:35:44,261 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:35:44,261 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 04:35:44,289 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,289 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,290 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,290 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,290 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,290 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,307 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,307 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,307 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,309 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,309 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,309 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,309 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,309 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,310 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,310 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,310 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,310 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,310 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,313 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,313 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,313 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,314 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,314 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,314 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,314 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:44,338 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-29 04:35:44,404 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:35:44,410 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 [2021-10-29 04:35:44,411 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-29 04:35:44,425 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 04:35:44,438 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 63 transitions, 134 flow [2021-10-29 04:35:44,442 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 63 transitions, 134 flow [2021-10-29 04:35:44,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 134 flow [2021-10-29 04:35:44,487 INFO L129 PetriNetUnfolder]: 1/62 cut-off events. [2021-10-29 04:35:44,488 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-29 04:35:44,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 1/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2021-10-29 04:35:44,493 INFO L116 LiptonReduction]: Number of co-enabled transitions 392 [2021-10-29 04:35:48,240 INFO L131 LiptonReduction]: Checked pairs total: 1171 [2021-10-29 04:35:48,240 INFO L133 LiptonReduction]: Total number of compositions: 53 [2021-10-29 04:35:48,249 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 18 transitions, 44 flow [2021-10-29 04:35:48,261 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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) [2021-10-29 04:35:48,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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) [2021-10-29 04:35:48,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:35:48,269 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:48,270 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 04:35:48,270 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-29 04:35:48,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:48,276 INFO L85 PathProgramCache]: Analyzing trace with hash 7027925, now seen corresponding path program 1 times [2021-10-29 04:35:48,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:48,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304988056] [2021-10-29 04:35:48,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:48,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:48,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:35:48,514 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:48,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304988056] [2021-10-29 04:35:48,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304988056] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:48,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:48,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 04:35:48,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851536654] [2021-10-29 04:35:48,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:35:48,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:48,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:35:48,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:35:48,544 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-10-29 04:35:48,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:48,574 INFO L93 Difference]: Finished difference Result 35 states and 52 transitions. [2021-10-29 04:35:48,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:35:48,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2021-10-29 04:35:48,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:48,590 INFO L225 Difference]: With dead ends: 35 [2021-10-29 04:35:48,590 INFO L226 Difference]: Without dead ends: 20 [2021-10-29 04:35:48,591 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:35:48,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-29 04:35:48,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-29 04:35:48,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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) [2021-10-29 04:35:48,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-10-29 04:35:48,630 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 4 [2021-10-29 04:35:48,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:48,634 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-29 04:35:48,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-10-29 04:35:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-10-29 04:35:48,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:35:48,637 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:48,637 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:35:48,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:35:48,638 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-29 04:35:48,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:48,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1115687367, now seen corresponding path program 1 times [2021-10-29 04:35:48,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:48,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942007772] [2021-10-29 04:35:48,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:48,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:48,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:35:48,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:48,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942007772] [2021-10-29 04:35:48,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942007772] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:48,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:48,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:35:48,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952843426] [2021-10-29 04:35:48,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:35:48,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:48,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:35:48,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:35:48,765 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) 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) [2021-10-29 04:35:48,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:48,786 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-10-29 04:35:48,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:35:48,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) 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 [2021-10-29 04:35:48,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:48,788 INFO L225 Difference]: With dead ends: 12 [2021-10-29 04:35:48,788 INFO L226 Difference]: Without dead ends: 9 [2021-10-29 04:35:48,789 INFO L786 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 [2021-10-29 04:35:48,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-29 04:35:48,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-29 04:35:48,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2021-10-29 04:35:48,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-10-29 04:35:48,793 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2021-10-29 04:35:48,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:48,794 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-10-29 04:35:48,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) 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) [2021-10-29 04:35:48,794 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-10-29 04:35:48,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:35:48,795 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:48,795 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:35:48,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:35:48,796 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-29 04:35:48,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:48,797 INFO L85 PathProgramCache]: Analyzing trace with hash -226615292, now seen corresponding path program 1 times [2021-10-29 04:35:48,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:48,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077706888] [2021-10-29 04:35:48,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:48,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:35:48,863 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:35:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:35:48,919 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 04:35:48,919 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:35:48,920 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:35:48,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 04:35:48,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 04:35:48,925 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 04:35:48,929 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 04:35:48,930 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:35:48,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:35:48 BasicIcfg [2021-10-29 04:35:48,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:35:48,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:35:48,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:35:48,975 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:35:48,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:35:44" (3/4) ... [2021-10-29 04:35:48,977 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:35:49,034 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:35:49,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:35:49,036 INFO L168 Benchmark]: Toolchain (without parser) took 5925.97 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 65.5 MB in the beginning and 49.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:49,037 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory is still 55.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:35:49,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.73 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 65.7 MB in the end (delta: -349.5 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:49,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.67 ms. Allocated memory is still 100.7 MB. Free memory was 65.7 MB in the beginning and 63.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:49,039 INFO L168 Benchmark]: Boogie Preprocessor took 23.62 ms. Allocated memory is still 100.7 MB. Free memory was 63.6 MB in the beginning and 62.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:49,040 INFO L168 Benchmark]: RCFGBuilder took 451.05 ms. Allocated memory is still 100.7 MB. Free memory was 62.6 MB in the beginning and 51.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:49,040 INFO L168 Benchmark]: TraceAbstraction took 4738.82 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 50.6 MB in the beginning and 51.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:49,041 INFO L168 Benchmark]: Witness Printer took 59.83 ms. Allocated memory is still 125.8 MB. Free memory was 51.7 MB in the beginning and 49.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:49,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory is still 55.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 549.73 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 65.7 MB in the end (delta: -349.5 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.67 ms. Allocated memory is still 100.7 MB. Free memory was 65.7 MB in the beginning and 63.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.62 ms. Allocated memory is still 100.7 MB. Free memory was 63.6 MB in the beginning and 62.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 451.05 ms. Allocated memory is still 100.7 MB. Free memory was 62.6 MB in the beginning and 51.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4738.82 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 50.6 MB in the beginning and 51.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. * Witness Printer took 59.83 ms. Allocated memory is still 125.8 MB. Free memory was 51.7 MB in the beginning and 49.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 66 PlacesBefore, 21 PlacesAfterwards, 63 TransitionsBefore, 18 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, 1171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 715, positive: 588, positive conditional: 0, positive unconditional: 588, negative: 127, negative conditional: 0, negative unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 348, positive: 310, positive conditional: 0, positive unconditional: 310, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 348, positive: 274, positive conditional: 0, positive unconditional: 274, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 171, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 115, negative conditional: 0, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 715, positive: 278, positive conditional: 0, positive unconditional: 278, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 348, unknown conditional: 0, unknown unconditional: 348] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - 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 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L675] 0 int glob1 = 0; [L676] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L677] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L690] 0 pthread_t id; [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, mutex1={9:0}, mutex2={3:0}] [L681] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={9:0}, mutex2={3:0}] [L13] COND TRUE 0 !(cond) [L13] 0 reach_error() VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={9:0}, mutex2={3:0}] - UnprovableResult [Line: 691]: 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, 79 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 6 SDslu, 4 SDs, 0 SdLazy, 9 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:35:49,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1e90f5-f886-4fe9-8477-1dd121df7d6a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...