./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI --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 27e2f315de443e202cbc54a2cdc7db0fe3a55a0e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:26:15,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:15,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:15,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:15,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:15,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:15,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:15,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:15,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:15,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:15,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:15,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:15,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:15,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:15,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:15,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:15,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:15,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:15,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:15,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:15,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:15,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:15,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:15,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:15,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:15,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:15,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:15,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:15,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:15,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:15,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:15,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:15,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:15,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:15,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:15,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:15,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:15,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:15,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:15,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:15,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:15,732 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:15,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:15,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:15,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:15,765 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:15,765 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:15,765 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:15,766 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:15,766 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:15,766 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:15,766 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:15,767 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:15,767 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:15,767 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:15,767 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:15,768 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:15,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:15,769 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:15,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:15,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:15,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:15,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:15,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:15,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:15,770 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:15,771 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:15,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:15,771 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:15,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:15,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:15,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:15,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:15,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:15,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:15,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:15,773 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:15,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:15,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:15,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:15,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:15,775 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_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e2f315de443e202cbc54a2cdc7db0fe3a55a0e [2021-10-11 02:26:16,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:16,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:16,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:16,044 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:16,044 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:16,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2021-10-11 02:26:16,125 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/data/ed6a09e05/0d141e8b87154a6189046ecd56107c6f/FLAG4f69a4528 [2021-10-11 02:26:16,754 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:16,755 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2021-10-11 02:26:16,778 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/data/ed6a09e05/0d141e8b87154a6189046ecd56107c6f/FLAG4f69a4528 [2021-10-11 02:26:17,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/data/ed6a09e05/0d141e8b87154a6189046ecd56107c6f [2021-10-11 02:26:17,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:17,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:17,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:17,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:17,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:17,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4bab9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17, skipping insertion in model container [2021-10-11 02:26:17,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:17,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:17,572 WARN L226 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_77fb4c4f-49b9-46fd-84a8-9129f27aae66/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30247,30260] [2021-10-11 02:26:17,578 WARN L226 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_77fb4c4f-49b9-46fd-84a8-9129f27aae66/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30452,30465] [2021-10-11 02:26:17,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:17,601 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:17,657 WARN L226 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_77fb4c4f-49b9-46fd-84a8-9129f27aae66/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30247,30260] [2021-10-11 02:26:17,658 WARN L226 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_77fb4c4f-49b9-46fd-84a8-9129f27aae66/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30452,30465] [2021-10-11 02:26:17,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:17,757 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:17,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17 WrapperNode [2021-10-11 02:26:17,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:17,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:17,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:17,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:17,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:17,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:17,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:17,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:17,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:17,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:17,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:17,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:17,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:18,009 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2021-10-11 02:26:18,010 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2021-10-11 02:26:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:26:18,011 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2021-10-11 02:26:18,012 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2021-10-11 02:26:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:26:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-11 02:26:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:26:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:26:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:18,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:18,014 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:26:18,453 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:18,454 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 02:26:18,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:18 BoogieIcfgContainer [2021-10-11 02:26:18,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:18,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:18,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:18,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:18,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:17" (1/3) ... [2021-10-11 02:26:18,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221aab8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:18, skipping insertion in model container [2021-10-11 02:26:18,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17" (2/3) ... [2021-10-11 02:26:18,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221aab8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:18, skipping insertion in model container [2021-10-11 02:26:18,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:18" (3/3) ... [2021-10-11 02:26:18,475 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2021-10-11 02:26:18,497 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:26:18,498 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:18,501 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:26:18,502 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:26:18,541 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,541 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,541 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,541 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,541 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,542 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,542 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,542 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,542 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,542 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,543 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,543 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,543 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,543 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,544 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,544 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,544 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,545 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,545 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,545 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,546 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,546 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,546 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,546 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,547 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,547 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,547 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,547 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,547 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,547 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,548 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,548 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,548 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,549 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,549 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,549 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,551 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,552 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,552 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,552 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,552 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,552 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,566 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,566 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,566 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,566 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,566 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:26:18,573 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-11 02:26:18,584 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-11 02:26:18,605 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:18,606 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:18,606 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:18,606 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:18,606 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:18,606 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:18,606 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:18,607 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:18,619 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:26:18,621 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 90 transitions, 202 flow [2021-10-11 02:26:18,624 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 90 transitions, 202 flow [2021-10-11 02:26:18,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 90 transitions, 202 flow [2021-10-11 02:26:18,672 INFO L129 PetriNetUnfolder]: 6/90 cut-off events. [2021-10-11 02:26:18,672 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-11 02:26:18,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 90 events. 6/90 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2021-10-11 02:26:18,679 INFO L116 LiptonReduction]: Number of co-enabled transitions 976 [2021-10-11 02:26:22,808 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2021-10-11 02:26:22,949 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-10-11 02:26:23,373 WARN L197 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2021-10-11 02:26:23,530 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-10-11 02:26:24,267 WARN L197 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2021-10-11 02:26:24,594 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-10-11 02:26:25,278 WARN L197 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2021-10-11 02:26:25,624 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-10-11 02:26:25,630 INFO L131 LiptonReduction]: Checked pairs total: 4131 [2021-10-11 02:26:25,630 INFO L133 LiptonReduction]: Total number of compositions: 75 [2021-10-11 02:26:25,636 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 33 transitions, 88 flow [2021-10-11 02:26:25,663 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 197 states. [2021-10-11 02:26:25,665 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2021-10-11 02:26:25,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:26:25,672 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:25,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:26:25,677 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:25,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:25,683 INFO L82 PathProgramCache]: Analyzing trace with hash 322971694, now seen corresponding path program 1 times [2021-10-11 02:26:25,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:25,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107505935] [2021-10-11 02:26:25,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:25,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:25,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107505935] [2021-10-11 02:26:25,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:25,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:25,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946046679] [2021-10-11 02:26:25,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:25,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:25,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:25,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:25,919 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 3 states. [2021-10-11 02:26:25,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:25,965 INFO L93 Difference]: Finished difference Result 197 states and 434 transitions. [2021-10-11 02:26:25,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:25,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:26:25,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:25,985 INFO L225 Difference]: With dead ends: 197 [2021-10-11 02:26:25,985 INFO L226 Difference]: Without dead ends: 167 [2021-10-11 02:26:25,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:26,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-10-11 02:26:26,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2021-10-11 02:26:26,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2021-10-11 02:26:26,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 363 transitions. [2021-10-11 02:26:26,070 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 363 transitions. Word has length 5 [2021-10-11 02:26:26,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:26,070 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 363 transitions. [2021-10-11 02:26:26,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:26,071 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 363 transitions. [2021-10-11 02:26:26,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:26:26,071 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:26,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:26,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:26:26,072 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:26,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:26,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1117845129, now seen corresponding path program 1 times [2021-10-11 02:26:26,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:26,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281136732] [2021-10-11 02:26:26,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:26,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:26,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281136732] [2021-10-11 02:26:26,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:26,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:26,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759824170] [2021-10-11 02:26:26,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:26,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:26,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:26,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:26,161 INFO L87 Difference]: Start difference. First operand 167 states and 363 transitions. Second operand 3 states. [2021-10-11 02:26:26,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:26,193 INFO L93 Difference]: Finished difference Result 182 states and 370 transitions. [2021-10-11 02:26:26,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:26,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2021-10-11 02:26:26,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:26,196 INFO L225 Difference]: With dead ends: 182 [2021-10-11 02:26:26,196 INFO L226 Difference]: Without dead ends: 157 [2021-10-11 02:26:26,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:26,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-10-11 02:26:26,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2021-10-11 02:26:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2021-10-11 02:26:26,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 302 transitions. [2021-10-11 02:26:26,208 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 302 transitions. Word has length 7 [2021-10-11 02:26:26,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:26,209 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 302 transitions. [2021-10-11 02:26:26,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:26,209 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 302 transitions. [2021-10-11 02:26:26,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:26:26,210 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:26,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:26,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:26:26,210 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:26,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:26,211 INFO L82 PathProgramCache]: Analyzing trace with hash 927338362, now seen corresponding path program 1 times [2021-10-11 02:26:26,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:26,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581506428] [2021-10-11 02:26:26,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:26,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581506428] [2021-10-11 02:26:26,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:26,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:26,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308465767] [2021-10-11 02:26:26,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:26,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:26,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:26,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:26,262 INFO L87 Difference]: Start difference. First operand 143 states and 302 transitions. Second operand 3 states. [2021-10-11 02:26:26,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:26,279 INFO L93 Difference]: Finished difference Result 138 states and 278 transitions. [2021-10-11 02:26:26,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:26,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-10-11 02:26:26,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:26,280 INFO L225 Difference]: With dead ends: 138 [2021-10-11 02:26:26,280 INFO L226 Difference]: Without dead ends: 84 [2021-10-11 02:26:26,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:26,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-11 02:26:26,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-10-11 02:26:26,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-10-11 02:26:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 151 transitions. [2021-10-11 02:26:26,287 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 151 transitions. Word has length 8 [2021-10-11 02:26:26,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:26,288 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 151 transitions. [2021-10-11 02:26:26,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:26,288 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 151 transitions. [2021-10-11 02:26:26,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:26:26,289 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:26,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:26,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:26:26,290 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:26,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:26,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1779137458, now seen corresponding path program 1 times [2021-10-11 02:26:26,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:26,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643502687] [2021-10-11 02:26:26,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:26,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:26,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643502687] [2021-10-11 02:26:26,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:26,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:26,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226485420] [2021-10-11 02:26:26,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:26,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:26,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:26,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:26:26,380 INFO L87 Difference]: Start difference. First operand 84 states and 151 transitions. Second operand 4 states. [2021-10-11 02:26:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:26,427 INFO L93 Difference]: Finished difference Result 76 states and 127 transitions. [2021-10-11 02:26:26,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:26:26,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-10-11 02:26:26,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:26,429 INFO L225 Difference]: With dead ends: 76 [2021-10-11 02:26:26,429 INFO L226 Difference]: Without dead ends: 68 [2021-10-11 02:26:26,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:26,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-11 02:26:26,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-11 02:26:26,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-10-11 02:26:26,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 111 transitions. [2021-10-11 02:26:26,452 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 111 transitions. Word has length 12 [2021-10-11 02:26:26,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:26,452 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 111 transitions. [2021-10-11 02:26:26,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:26,453 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 111 transitions. [2021-10-11 02:26:26,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:26:26,454 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:26,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:26,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:26:26,455 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:26,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:26,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1863867517, now seen corresponding path program 1 times [2021-10-11 02:26:26,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:26,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769321785] [2021-10-11 02:26:26,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:26,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769321785] [2021-10-11 02:26:26,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:26,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:26,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655250611] [2021-10-11 02:26:26,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:26,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:26,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:26,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:26,520 INFO L87 Difference]: Start difference. First operand 68 states and 111 transitions. Second operand 3 states. [2021-10-11 02:26:26,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:26,527 INFO L93 Difference]: Finished difference Result 26 states and 40 transitions. [2021-10-11 02:26:26,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:26,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-10-11 02:26:26,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:26,529 INFO L225 Difference]: With dead ends: 26 [2021-10-11 02:26:26,529 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:26:26,530 INFO L677 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 [2021-10-11 02:26:26,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:26:26,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:26:26,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:26:26,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:26:26,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-11 02:26:26,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:26,531 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:26:26,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:26,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:26:26,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:26:26,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:26:26,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:26 BasicIcfg [2021-10-11 02:26:26,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:26,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:26,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:26,537 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:26,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:18" (3/4) ... [2021-10-11 02:26:26,541 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:26:26,551 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2021-10-11 02:26:26,551 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2021-10-11 02:26:26,558 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:26:26,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:26:26,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:26,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:26,626 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb4c4f-49b9-46fd-84a8-9129f27aae66/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:26,629 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:26,631 INFO L168 Benchmark]: Toolchain (without parser) took 9566.99 ms. Allocated memory was 107.0 MB in the beginning and 209.7 MB in the end (delta: 102.8 MB). Free memory was 70.1 MB in the beginning and 110.7 MB in the end (delta: -40.5 MB). Peak memory consumption was 62.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:26,632 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 52.9 MB in the beginning and 52.9 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:26,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.21 ms. Allocated memory is still 107.0 MB. Free memory was 70.0 MB in the beginning and 62.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:26,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.88 ms. Allocated memory is still 107.0 MB. Free memory was 62.8 MB in the beginning and 60.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:26,639 INFO L168 Benchmark]: Boogie Preprocessor took 68.35 ms. Allocated memory is still 107.0 MB. Free memory was 60.7 MB in the beginning and 59.8 MB in the end (delta: 929.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:26,640 INFO L168 Benchmark]: RCFGBuilder took 548.95 ms. Allocated memory is still 107.0 MB. Free memory was 59.3 MB in the beginning and 79.2 MB in the end (delta: -19.9 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:26,641 INFO L168 Benchmark]: TraceAbstraction took 8078.57 ms. Allocated memory was 107.0 MB in the beginning and 209.7 MB in the end (delta: 102.8 MB). Free memory was 79.2 MB in the beginning and 113.8 MB in the end (delta: -34.6 MB). Peak memory consumption was 66.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:26,642 INFO L168 Benchmark]: Witness Printer took 94.20 ms. Allocated memory is still 209.7 MB. Free memory was 113.8 MB in the beginning and 110.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:26,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 52.9 MB in the beginning and 52.9 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 688.21 ms. Allocated memory is still 107.0 MB. Free memory was 70.0 MB in the beginning and 62.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.88 ms. Allocated memory is still 107.0 MB. Free memory was 62.8 MB in the beginning and 60.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.35 ms. Allocated memory is still 107.0 MB. Free memory was 60.7 MB in the beginning and 59.8 MB in the end (delta: 929.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 548.95 ms. Allocated memory is still 107.0 MB. Free memory was 59.3 MB in the beginning and 79.2 MB in the end (delta: -19.9 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8078.57 ms. Allocated memory was 107.0 MB in the beginning and 209.7 MB in the end (delta: 102.8 MB). Free memory was 79.2 MB in the beginning and 113.8 MB in the end (delta: -34.6 MB). Peak memory consumption was 66.7 MB. Max. memory is 16.1 GB. * Witness Printer took 94.20 ms. Allocated memory is still 209.7 MB. Free memory was 113.8 MB in the beginning and 110.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 760 VarBasedMoverChecksPositive, 85 VarBasedMoverChecksNegative, 48 SemBasedMoverChecksPositive, 37 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 216 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.0s, 90 PlacesBefore, 34 PlacesAfterwards, 90 TransitionsBefore, 33 TransitionsAfterwards, 976 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 4131 MoverChecksTotal - PositiveResult [Line: 702]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 710]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.0s, HoareTripleCheckerStatistics: 122 SDtfs, 74 SDslu, 73 SDs, 0 SdLazy, 32 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 591 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...