./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH --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 8d7df89eaaa05ee1c4077455abbd501c07d86257ca2c037ce71ae27b3838effb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:23:42,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:23:42,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:23:42,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:23:42,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:23:42,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:23:42,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:23:42,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:23:42,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:23:42,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:23:42,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:23:42,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:23:42,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:23:42,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:23:42,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:23:42,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:23:42,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:23:42,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:23:42,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:23:42,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:23:42,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:23:42,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:23:42,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:23:42,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:23:42,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:23:42,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:23:42,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:23:42,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:23:42,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:23:42,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:23:42,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:23:42,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:23:42,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:23:42,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:23:42,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:23:42,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:23:42,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:23:42,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:23:42,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:23:42,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:23:42,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:23:42,627 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:23:42,664 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:23:42,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:23:42,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:23:42,674 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:23:42,674 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:23:42,674 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:23:42,674 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:23:42,675 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:23:42,681 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:23:42,681 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:23:42,682 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:23:42,683 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:23:42,683 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:23:42,683 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:23:42,684 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:23:42,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:23:42,685 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:23:42,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:23:42,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:23:42,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:23:42,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:23:42,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:23:42,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:23:42,687 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:23:42,687 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:23:42,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:23:42,687 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:23:42,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:23:42,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:23:42,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:23:42,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:23:42,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:23:42,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:23:42,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:23:42,691 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:23:42,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:23:42,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:23:42,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:23:42,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:23:42,693 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_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d7df89eaaa05ee1c4077455abbd501c07d86257ca2c037ce71ae27b3838effb [2021-11-03 04:23:42,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:23:42,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:23:42,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:23:42,985 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:23:42,986 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:23:42,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i [2021-11-03 04:23:43,073 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/data/10d66854c/58535dcb79f34709ac2b02c73fd42010/FLAG4259ef500 [2021-11-03 04:23:43,715 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:23:43,716 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i [2021-11-03 04:23:43,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/data/10d66854c/58535dcb79f34709ac2b02c73fd42010/FLAG4259ef500 [2021-11-03 04:23:43,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/data/10d66854c/58535dcb79f34709ac2b02c73fd42010 [2021-11-03 04:23:43,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:23:43,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:23:43,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:23:43,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:23:43,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:23:43,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:23:43" (1/1) ... [2021-11-03 04:23:43,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1217b6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:43, skipping insertion in model container [2021-11-03 04:23:43,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:23:43" (1/1) ... [2021-11-03 04:23:43,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:23:44,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:23:44,398 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_704a8e72-20f0-4a30-ade1-ee595b36b303/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i[30190,30203] [2021-11-03 04:23:44,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:23:44,433 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:23:44,502 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_704a8e72-20f0-4a30-ade1-ee595b36b303/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i[30190,30203] [2021-11-03 04:23:44,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:23:44,567 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:23:44,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44 WrapperNode [2021-11-03 04:23:44,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:23:44,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:23:44,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:23:44,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:23:44,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44" (1/1) ... [2021-11-03 04:23:44,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44" (1/1) ... [2021-11-03 04:23:44,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:23:44,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:23:44,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:23:44,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:23:44,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44" (1/1) ... [2021-11-03 04:23:44,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44" (1/1) ... [2021-11-03 04:23:44,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44" (1/1) ... [2021-11-03 04:23:44,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44" (1/1) ... [2021-11-03 04:23:44,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44" (1/1) ... [2021-11-03 04:23:44,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44" (1/1) ... [2021-11-03 04:23:44,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44" (1/1) ... [2021-11-03 04:23:44,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:23:44,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:23:44,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:23:44,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:23:44,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44" (1/1) ... [2021-11-03 04:23:44,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:23:44,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:23:44,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:23:44,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:23:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 04:23:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2021-11-03 04:23:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2021-11-03 04:23:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 04:23:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-03 04:23:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:23:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:23:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2021-11-03 04:23:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2021-11-03 04:23:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 04:23:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-03 04:23:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:23:44,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:23:44,769 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 04:23:45,179 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:23:45,180 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-03 04:23:45,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:23:45 BoogieIcfgContainer [2021-11-03 04:23:45,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:23:45,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:23:45,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:23:45,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:23:45,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:23:43" (1/3) ... [2021-11-03 04:23:45,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac0ef59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:23:45, skipping insertion in model container [2021-11-03 04:23:45,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:23:44" (2/3) ... [2021-11-03 04:23:45,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac0ef59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:23:45, skipping insertion in model container [2021-11-03 04:23:45,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:23:45" (3/3) ... [2021-11-03 04:23:45,194 INFO L111 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-30.i [2021-11-03 04:23:45,200 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 04:23:45,200 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:23:45,200 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 04:23:45,200 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 04:23:45,238 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,239 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,239 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,239 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,239 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,239 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,240 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,240 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,240 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,241 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,241 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,241 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,242 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,242 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,242 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,242 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,242 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,243 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,243 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,243 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,248 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,249 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,251 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,251 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,257 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,258 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,258 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,258 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,263 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,263 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,264 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,264 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:45,280 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-03 04:23:45,331 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:23:45,348 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:23:45,348 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 04:23:45,371 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 04:23:45,381 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 87 transitions, 196 flow [2021-11-03 04:23:45,384 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 87 transitions, 196 flow [2021-11-03 04:23:45,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 87 transitions, 196 flow [2021-11-03 04:23:45,482 INFO L129 PetriNetUnfolder]: 24/195 cut-off events. [2021-11-03 04:23:45,482 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-11-03 04:23:45,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 195 events. 24/195 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 610 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 100. Up to 8 conditions per place. [2021-11-03 04:23:45,493 INFO L116 LiptonReduction]: Number of co-enabled transitions 1208 [2021-11-03 04:23:48,468 INFO L131 LiptonReduction]: Checked pairs total: 2157 [2021-11-03 04:23:48,468 INFO L133 LiptonReduction]: Total number of compositions: 68 [2021-11-03 04:23:48,476 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 27 transitions, 76 flow [2021-11-03 04:23:48,494 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:48,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:48,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:23:48,501 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:48,502 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:23:48,502 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:23:48,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:48,508 INFO L85 PathProgramCache]: Analyzing trace with hash 311048357, now seen corresponding path program 1 times [2021-11-03 04:23:48,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:23:48,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290103880] [2021-11-03 04:23:48,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:48,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:23:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:48,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:48,709 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:23:48,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290103880] [2021-11-03 04:23:48,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290103880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:48,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:48,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:23:48,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679843738] [2021-11-03 04:23:48,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:23:48,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:23:48,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:23:48,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:23:48,733 INFO L87 Difference]: Start difference. First operand has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 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, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:48,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:23:48,781 INFO L93 Difference]: Finished difference Result 81 states and 152 transitions. [2021-11-03 04:23:48,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:23:48,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 04:23:48,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:23:48,792 INFO L225 Difference]: With dead ends: 81 [2021-11-03 04:23:48,793 INFO L226 Difference]: Without dead ends: 81 [2021-11-03 04:23:48,794 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:23:48,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-03 04:23:48,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-11-03 04:23:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 76 states have (on average 2.0) internal successors, (152), 80 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:48,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 152 transitions. [2021-11-03 04:23:48,834 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 152 transitions. Word has length 5 [2021-11-03 04:23:48,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:23:48,834 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 152 transitions. [2021-11-03 04:23:48,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:48,835 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 152 transitions. [2021-11-03 04:23:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 04:23:48,835 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:48,836 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-11-03 04:23:48,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:23:48,836 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:23:48,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:48,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1070559639, now seen corresponding path program 1 times [2021-11-03 04:23:48,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:23:48,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329289986] [2021-11-03 04:23:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:48,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:23:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:23:48,871 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 04:23:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:23:48,917 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 04:23:48,917 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 04:23:48,919 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 04:23:48,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:23:48,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-03 04:23:48,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:23:48,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 04:23:48,923 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-03 04:23:48,925 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-03 04:23:48,925 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-03 04:23:48,934 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,935 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,935 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,935 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,935 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,935 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,935 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,936 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,936 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,936 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,936 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,936 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,937 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,937 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,937 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,937 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,937 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,937 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,938 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,938 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,938 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,938 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,938 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,939 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,939 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,939 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,939 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,939 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,940 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,940 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,940 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,940 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,940 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,940 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,941 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,941 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,941 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,941 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,942 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,942 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,942 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,942 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,942 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,942 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,943 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,943 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,943 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,943 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,944 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,944 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,944 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,944 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,946 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,946 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,946 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,946 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,948 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,948 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,948 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,948 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,949 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,950 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,950 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,950 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:48,968 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2021-11-03 04:23:48,970 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:23:48,972 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:23:48,972 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 04:23:48,974 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 04:23:48,975 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 106 transitions, 260 flow [2021-11-03 04:23:48,975 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 106 transitions, 260 flow [2021-11-03 04:23:48,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 106 transitions, 260 flow [2021-11-03 04:23:49,114 INFO L129 PetriNetUnfolder]: 107/637 cut-off events. [2021-11-03 04:23:49,114 INFO L130 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2021-11-03 04:23:49,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 637 events. 107/637 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3027 event pairs, 2 based on Foata normal form. 0/537 useless extension candidates. Maximal degree in co-relation 384. Up to 32 conditions per place. [2021-11-03 04:23:49,140 INFO L116 LiptonReduction]: Number of co-enabled transitions 3008 [2021-11-03 04:23:51,877 INFO L131 LiptonReduction]: Checked pairs total: 6561 [2021-11-03 04:23:51,877 INFO L133 LiptonReduction]: Total number of compositions: 80 [2021-11-03 04:23:51,879 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 39 transitions, 126 flow [2021-11-03 04:23:51,985 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:51,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:51,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:23:51,995 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:51,995 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:23:51,995 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:23:51,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:51,996 INFO L85 PathProgramCache]: Analyzing trace with hash 504656412, now seen corresponding path program 1 times [2021-11-03 04:23:51,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:23:51,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24135738] [2021-11-03 04:23:51,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:51,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:23:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:52,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:52,095 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:23:52,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24135738] [2021-11-03 04:23:52,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24135738] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:52,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:52,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:23:52,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401457357] [2021-11-03 04:23:52,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:23:52,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:23:52,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:23:52,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:23:52,107 INFO L87 Difference]: Start difference. First operand has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 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, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:52,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:23:52,229 INFO L93 Difference]: Finished difference Result 1972 states and 5703 transitions. [2021-11-03 04:23:52,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:23:52,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 04:23:52,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:23:52,268 INFO L225 Difference]: With dead ends: 1972 [2021-11-03 04:23:52,268 INFO L226 Difference]: Without dead ends: 1972 [2021-11-03 04:23:52,269 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:23:52,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2021-11-03 04:23:52,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1824. [2021-11-03 04:23:52,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1800 states have (on average 2.9994444444444444) internal successors, (5399), 1823 states have internal predecessors, (5399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:52,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 5399 transitions. [2021-11-03 04:23:52,445 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 5399 transitions. Word has length 5 [2021-11-03 04:23:52,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:23:52,445 INFO L470 AbstractCegarLoop]: Abstraction has 1824 states and 5399 transitions. [2021-11-03 04:23:52,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:52,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 5399 transitions. [2021-11-03 04:23:52,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 04:23:52,446 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:52,446 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:23:52,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 04:23:52,447 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:23:52,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:52,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1513684789, now seen corresponding path program 1 times [2021-11-03 04:23:52,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:23:52,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194799431] [2021-11-03 04:23:52,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:52,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:23:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:52,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:52,490 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:23:52,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194799431] [2021-11-03 04:23:52,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194799431] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:23:52,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488333717] [2021-11-03 04:23:52,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:52,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:23:52,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:23:52,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:23:52,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 04:23:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:52,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:23:52,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:23:52,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:52,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:23:52,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:52,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488333717] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:23:52,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [101125912] [2021-11-03 04:23:52,721 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:23:52,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:23:52,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-03 04:23:52,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836324009] [2021-11-03 04:23:52,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:23:52,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:23:52,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:23:52,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:23:52,725 INFO L87 Difference]: Start difference. First operand 1824 states and 5399 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:52,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:23:52,768 INFO L93 Difference]: Finished difference Result 60 states and 119 transitions. [2021-11-03 04:23:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:23:52,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-03 04:23:52,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:23:52,769 INFO L225 Difference]: With dead ends: 60 [2021-11-03 04:23:52,770 INFO L226 Difference]: Without dead ends: 60 [2021-11-03 04:23:52,770 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:23:52,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-03 04:23:52,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-11-03 04:23:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 2.016949152542373) internal successors, (119), 59 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:52,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 119 transitions. [2021-11-03 04:23:52,774 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 119 transitions. Word has length 9 [2021-11-03 04:23:52,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:23:52,774 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 119 transitions. [2021-11-03 04:23:52,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:52,774 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 119 transitions. [2021-11-03 04:23:52,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 04:23:52,775 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:52,775 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2021-11-03 04:23:52,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-03 04:23:52,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:23:52,976 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:23:52,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:52,977 INFO L85 PathProgramCache]: Analyzing trace with hash -550320048, now seen corresponding path program 1 times [2021-11-03 04:23:52,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:23:52,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396691364] [2021-11-03 04:23:52,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:52,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:23:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:23:53,000 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 04:23:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:23:53,027 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 04:23:53,028 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 04:23:53,028 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 04:23:53,028 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:23:53,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-03 04:23:53,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:23:53,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:23:53,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 04:23:53,030 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-03 04:23:53,030 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-03 04:23:53,030 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-03 04:23:53,047 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,048 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,048 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,048 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,049 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,049 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,049 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,049 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,049 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,050 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,050 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,050 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,050 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,051 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,051 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,051 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,051 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,051 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,052 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,052 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,052 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,053 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,054 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,054 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,054 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,054 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,055 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,055 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,056 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,056 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,056 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,056 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,056 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,056 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,056 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,056 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,056 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,057 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,057 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,057 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,057 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,057 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,057 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,057 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,057 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,057 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,057 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,058 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,058 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,058 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,058 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,058 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,058 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,058 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,058 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,058 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,059 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,059 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,059 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,059 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,059 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,059 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,059 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,059 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,059 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,059 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,060 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,060 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,060 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,060 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,060 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,060 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,061 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,061 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,061 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,061 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,067 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,067 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,067 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,067 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,068 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,068 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,068 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,068 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,069 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,069 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,069 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,070 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,070 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,071 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,071 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,071 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,072 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,072 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,072 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,072 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:23:53,099 INFO L148 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2021-11-03 04:23:53,101 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:23:53,103 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:23:53,103 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:23:53,108 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 04:23:53,108 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 125 transitions, 328 flow [2021-11-03 04:23:53,109 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 125 transitions, 328 flow [2021-11-03 04:23:53,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 125 transitions, 328 flow [2021-11-03 04:23:53,462 INFO L129 PetriNetUnfolder]: 496/2213 cut-off events. [2021-11-03 04:23:53,462 INFO L130 PetriNetUnfolder]: For 419/419 co-relation queries the response was YES. [2021-11-03 04:23:53,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2664 conditions, 2213 events. 496/2213 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 14428 event pairs, 64 based on Foata normal form. 0/1893 useless extension candidates. Maximal degree in co-relation 1364. Up to 192 conditions per place. [2021-11-03 04:23:53,591 INFO L116 LiptonReduction]: Number of co-enabled transitions 5400 [2021-11-03 04:23:56,970 INFO L131 LiptonReduction]: Checked pairs total: 13883 [2021-11-03 04:23:56,970 INFO L133 LiptonReduction]: Total number of compositions: 92 [2021-11-03 04:23:56,971 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 49 transitions, 176 flow [2021-11-03 04:23:59,151 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 37034 states, 36835 states have (on average 4.21873218406407) internal successors, (155397), 37033 states have internal predecessors, (155397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:59,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 37034 states, 36835 states have (on average 4.21873218406407) internal successors, (155397), 37033 states have internal predecessors, (155397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:59,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:23:59,387 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:59,388 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:23:59,388 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:23:59,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:59,389 INFO L85 PathProgramCache]: Analyzing trace with hash 727734535, now seen corresponding path program 1 times [2021-11-03 04:23:59,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:23:59,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242059755] [2021-11-03 04:23:59,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:59,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:23:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:59,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:59,467 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:23:59,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242059755] [2021-11-03 04:23:59,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242059755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:59,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:59,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:23:59,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450474073] [2021-11-03 04:23:59,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:23:59,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:23:59,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:23:59,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:23:59,558 INFO L87 Difference]: Start difference. First operand has 37034 states, 36835 states have (on average 4.21873218406407) internal successors, (155397), 37033 states have internal predecessors, (155397), 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, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:00,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:24:00,887 INFO L93 Difference]: Finished difference Result 37829 states and 150200 transitions. [2021-11-03 04:24:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:24:00,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 04:24:00,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:24:01,700 INFO L225 Difference]: With dead ends: 37829 [2021-11-03 04:24:01,713 INFO L226 Difference]: Without dead ends: 37829 [2021-11-03 04:24:01,714 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:24:02,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37829 states. [2021-11-03 04:24:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37829 to 32927. [2021-11-03 04:24:04,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32927 states, 32773 states have (on average 4.077777438745309) internal successors, (133641), 32926 states have internal predecessors, (133641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32927 states to 32927 states and 133641 transitions. [2021-11-03 04:24:04,825 INFO L78 Accepts]: Start accepts. Automaton has 32927 states and 133641 transitions. Word has length 5 [2021-11-03 04:24:04,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:24:04,825 INFO L470 AbstractCegarLoop]: Abstraction has 32927 states and 133641 transitions. [2021-11-03 04:24:04,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:04,825 INFO L276 IsEmpty]: Start isEmpty. Operand 32927 states and 133641 transitions. [2021-11-03 04:24:04,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 04:24:04,826 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:24:04,827 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:24:04,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 04:24:04,827 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:24:04,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:24:04,828 INFO L85 PathProgramCache]: Analyzing trace with hash 246455565, now seen corresponding path program 1 times [2021-11-03 04:24:04,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:24:04,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392244466] [2021-11-03 04:24:04,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:24:04,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:24:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:24:04,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:24:04,870 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:24:04,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392244466] [2021-11-03 04:24:04,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392244466] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:24:04,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463495176] [2021-11-03 04:24:04,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:24:04,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:24:04,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:24:04,881 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:24:04,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 04:24:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:24:04,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:24:04,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:24:05,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:24:05,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:24:05,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:24:05,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463495176] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:24:05,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1526370] [2021-11-03 04:24:05,083 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:24:05,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:24:05,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-03 04:24:05,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54675540] [2021-11-03 04:24:05,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:24:05,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:24:05,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:24:05,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:24:05,087 INFO L87 Difference]: Start difference. First operand 32927 states and 133641 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:05,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:24:05,106 INFO L93 Difference]: Finished difference Result 186 states and 485 transitions. [2021-11-03 04:24:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:24:05,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-03 04:24:05,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:24:05,109 INFO L225 Difference]: With dead ends: 186 [2021-11-03 04:24:05,109 INFO L226 Difference]: Without dead ends: 186 [2021-11-03 04:24:05,109 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:24:05,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-11-03 04:24:05,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2021-11-03 04:24:05,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 2.6216216216216215) internal successors, (485), 185 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:05,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 485 transitions. [2021-11-03 04:24:05,115 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 485 transitions. Word has length 9 [2021-11-03 04:24:05,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:24:05,116 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 485 transitions. [2021-11-03 04:24:05,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:05,116 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 485 transitions. [2021-11-03 04:24:05,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 04:24:05,117 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:24:05,118 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2021-11-03 04:24:05,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:24:05,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704a8e72-20f0-4a30-ade1-ee595b36b303/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:24:05,341 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:24:05,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:24:05,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2108407692, now seen corresponding path program 1 times [2021-11-03 04:24:05,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:24:05,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561688267] [2021-11-03 04:24:05,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:24:05,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:24:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:24:05,375 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 04:24:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:24:05,425 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 04:24:05,430 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 04:24:05,430 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-03 04:24:05,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:24:05,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 04:24:05,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:24:05,432 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:24:05,432 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:24:05,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-03 04:24:05,433 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-03 04:24:05,433 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-03 04:24:05,433 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-03 04:24:05,456 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,456 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,456 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,457 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,457 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,457 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,457 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,457 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,458 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,458 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,458 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,458 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,459 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,459 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,459 WARN L313 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,459 WARN L313 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,459 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,459 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,460 WARN L313 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,461 WARN L313 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,461 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,461 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,461 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,461 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,462 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,462 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,462 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,462 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,462 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,463 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,463 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,464 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,465 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,465 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,465 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,465 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,466 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,466 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,466 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,466 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,466 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,467 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,467 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,467 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,467 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,467 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,468 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,468 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,468 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,468 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,469 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,469 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,469 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,469 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,469 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,469 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,470 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,470 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,470 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,470 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,471 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,472 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,472 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,472 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,472 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,472 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,473 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,473 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,473 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,473 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,473 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,474 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,474 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,474 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,474 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,475 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,475 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,475 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,475 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,475 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,476 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,476 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,476 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,476 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,477 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,477 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,477 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,477 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,478 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,478 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,478 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,478 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,479 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,479 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,479 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,479 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,486 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,486 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,486 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,487 WARN L313 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,488 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,488 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,488 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,489 WARN L313 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,490 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,490 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,490 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,490 WARN L313 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,492 WARN L313 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,492 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,492 WARN L313 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,492 WARN L313 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,493 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,494 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,494 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,494 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,496 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,496 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,496 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,496 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,498 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,498 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,498 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,498 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,499 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,500 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,500 WARN L313 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,500 WARN L313 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:24:05,713 INFO L148 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-11-03 04:24:05,714 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:24:05,715 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:24:05,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-03 04:24:05,716 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 04:24:05,717 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 144 transitions, 400 flow [2021-11-03 04:24:05,717 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 144 transitions, 400 flow [2021-11-03 04:24:05,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 144 transitions, 400 flow [2021-11-03 04:24:07,625 INFO L129 PetriNetUnfolder]: 2379/8487 cut-off events. [2021-11-03 04:24:07,626 INFO L130 PetriNetUnfolder]: For 2144/2144 co-relation queries the response was YES. [2021-11-03 04:24:07,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10652 conditions, 8487 events. 2379/8487 cut-off events. For 2144/2144 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 71770 event pairs, 626 based on Foata normal form. 0/7363 useless extension candidates. Maximal degree in co-relation 5257. Up to 1024 conditions per place. [2021-11-03 04:24:08,082 INFO L116 LiptonReduction]: Number of co-enabled transitions 8384 [2021-11-03 04:24:11,785 INFO L131 LiptonReduction]: Checked pairs total: 20317 [2021-11-03 04:24:11,785 INFO L133 LiptonReduction]: Total number of compositions: 106 [2021-11-03 04:24:11,786 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 59 transitions, 230 flow [2021-11-03 04:24:47,854 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 595727 states, 594576 states have (on average 5.339936358009742) internal successors, (3174998), 595726 states have internal predecessors, (3174998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:48,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 595727 states, 594576 states have (on average 5.339936358009742) internal successors, (3174998), 595726 states have internal predecessors, (3174998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:24:48,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:24:48,934 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:24:48,935 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:24:48,935 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:24:48,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:24:48,938 INFO L85 PathProgramCache]: Analyzing trace with hash 982261420, now seen corresponding path program 1 times [2021-11-03 04:24:48,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:24:48,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755881994] [2021-11-03 04:24:48,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:24:48,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:24:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:24:48,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:24:48,968 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:24:48,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755881994] [2021-11-03 04:24:48,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755881994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:24:48,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:24:48,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:24:48,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534742937] [2021-11-03 04:24:48,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:24:48,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:24:48,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:24:48,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:24:49,936 INFO L87 Difference]: Start difference. First operand has 595727 states, 594576 states have (on average 5.339936358009742) internal successors, (3174998), 595726 states have internal predecessors, (3174998), 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, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)